РАСХОДОМЕР

Полезная модель относится к измерительной технике, предназначена для определения расхода среды при стабилизированном и нестабилизированном течениях в круглых трубопроводах. Расходомер включает в себя трубку, которая содержит три пары отверстий, размещенных на лобовой и кормовой частях трубки так, что осевая линия, проходящая через центры отверстий каждой пары, расположена нормально центральной оси трубки, причем каждая пара отверстий подключена соответственно к измерителю полного и статического давлений. Технический результат - повышение точности определения расхода теплоносителя. 2 ил.

Зонд для расходомера

Полезная модель относится к средствам измерения расхода и может использоваться в расходометрии жидких и газообразных сред. Зонд для расходомера содержит корпус (9), профиль зонда (6), предназначенный для диаметрального размещения в трубопроводе, имеющий ударную поверхность (15), обращенную вверх по потоку, и неударные поверхности (16) нижние по потоку. Форма профиля зонда D-образная. Профиль зонда имеет каналы высокого (13) и низкого (14) давлений, герметично изолированные друг от друга. Перпендикулярное сечение ударной поверхности зонда (15), расположенной выше по потоку, представляет собой кривую, полученную сопряжением трех окружностей различного радиуса, неударные поверхности (16) профиля зонда, расположенные ниже по потоку, являются плоскими, перпендикулярными задней поверхности (17) профиля зонда (6). Ударная поверхность (15) профиля зонда (6), обращенная вверх по потоку, имеет по меньшей мере одно отверстие (10). Нижние по потоку неударные поверхности (16) имеют по меньшей мере одно ...

УСТРОЙСТВО ИЗМЕРЕНИЯ ПОТОКА НА ОСНОВЕ ДИФФЕРЕНЦИАЛЬНОГО ДАВЛЕНИЯ С УСОВЕРШЕНСТВОВАННОЙ КОНФИГУРАЦИЕЙ ТРУБКИ ПИТО

DURCHFLUSS-MESSGERÄT

Mittelwerte bildender Pitotmessfühler.

Improved flow measurement apparatus and method of use

GAS FLOW RESTRICTING AND DIRECTING DEVICE INTENDED FOR FLOW MEASUREMENT

A gas flow directing and restricting device intended for flow measurement and having bilaterally located apertures (2) communicating via a measuring tube (3) to a measuring device (4) for measurement of pressure difference. Starting from aperture (2) and leading towards the inside boundary of flow tube (1), there are one or more baffles (5) either perpendicular to the longitudinal axis of tube (1) or inclined forwards against the direction of flow, whereby said baffles guide the flowing gas to aperture (2).

Flow meter guide

A system and method for spot check analysis or spot sampling of a multiphase mixture flowing in a pipeline

A method and system for analyzing or spot checking the flow properties of a multiphase mixture 10 containing one or more hydrocarbons flowing through a pipeline 15 or conduit. The present invention provides systems and methods for creating slug-type flows of isokinetically obtained samples of the multiphase mixture flow. A sampling probe 20 is positioned in the pipeline to collect a sample of the multiphase mixture under isokinetic conditions, thus creating a sample flow 29 through a sampling conduit 27. A main flow pressure sensor probe 24 and a sample pressure sensor probe 22 measure the pressure of the main flow and sample flow respectively, the differential pressure being monitored by a differential pressure monitor 26. A flow control valve 30 may be used to control the flow of the sample flow 29. The control valve 30 controls the flow of the sample flow 29 in such a way as to minimize the differential pressure between the main flow and the sample flow to provide for isokinetic sampling ...

A device for the partial automation of the commissioning of fluid flow systems

APPARATUS FOR DETERMINING THE DIFFERENTIAL PRESSURE AND RATE IN A CONDUIT

FLOWMETER

Improvements in or relating to fluid flow meters

... 614,487. Fluid-flow meters. POOLE, R. July 15, 1946, No. 21165. [Class 69 (i)] A nozzle for a fluid-flow meter comprises two adjacent tubes A, B, the lower portions A<2>, B<2> of which are turned through a right angle, the portion A<2> being within and concentric to the portion B<2>. The end A<3> of the portion A<2> is outwardly flared and backwardly turned to form an annular baffle extending transversely across, and spaced at a distance from, the end of the tube B. Fluid passes to the flowmeter through the opening A<4> of the tube A and returns by way of the tube B and the opening B<5> which is situated in an area of reduced pressure. Specification 586,535 is referred to.

Vorrichtung zur Geschwindigkeitserfassung mit einer Kielsonde

Es wird eine Vorrichtung (1) zur Geschwindigkeitserfassung mit einer Kielsonde (2), die eine Strömungsgeschwindigkeitssonde aufweist, die von einem eine Venturidüse bildenden Mantelkörper (3) umfasst ist, beschrieben. Um vorteilhafte Messbedingungen zu schaffen, wird vorgeschlagen, dass der Mantelkörper (3) als Mehrlochstaudrucksonde mit über den Mantelumfang verteilt angeordneten Löchern (4) im Mantelkörper (3) ausgebildet ist.

FLOW METER.

PROCEDURE AND DEVICE FOR THE FLOW MEASUREMENT OF GASES AND LIQUIDS

VOLUMETRIC FLOW METER

Pitot tube instrument

An apparatus for obtaining pressure measurements in an airstream includes a Pitot tube. The Pitot tube includes at least one total pressure port configured to be positioned in the airstream facing upstream, at least one static pressure port configured to be positioned in the airstream facing downstream, at least one first directional port, and at least one second directional port. The at least one first directional port and the at least one second directional port are positioned on opposite sides of the at least one total pressure port and face obliquely with respect to the direction that the at least one total pressure port faces.

Noise reducing differential pressure measurement probe

Airflow sensor with pitot tube for pressure drop reduction

Flow meter pitot tube with temperature sensor

Differential pressure velocimeter with probe body having disk shape

Method and apparatus for use in installing a through-the-wall sensing device in a laboratory fume hood

DEVICE AND METHOD ENABLING FLUID CHARACTERISTIC MEASUREMENT UTILIZING FLUID ACCELERATION

Devices and methods for enabling measurement of a selected fluid characteristic in fluid flowing through a conduit. The device includes a body connected in the conduit having an accelerator section and a flow conditioner section within which a measuring unit such as an averaging pitot is maintained. The flow conditioner section includes a straight, substantially constant diameter conduit length selected to provide a settling distance after the accelerator section and in advance of the measuring unit sufficient to provide stabilization and linearization of the flowing fluid prior to measurement. Utilizing the device, repeatable and accurate measurement of the characteristic (flow rate for example) may be conducted over an operating range characterized by up to at least about a 25 to 1 turndown in flow with a constant flow coefficient independent of fluid flow velocity or Reynolds number.

FLUID FLOW SENSOR HAVING MULTIPLYING EFFECT

NOISE REDUCING DIFFERENTIAL PRESSURE MEASUREMENT PROBE

A differential pressure measuring probe with an improved signal to noise ratio is provided. The probe includes an impact surface with at least one longitudinally extending slit aperture communicating with a first plenum within the body of the probe. The width of the aperture is selected to be less than the width of the interior portion of a first plenum. A non-impact surface is provided with non-impact apertures to measure a second pressure such that differential pressure between the impact surface and the non-impact surface can be measured.

METHOD AND APPARATUS FOR STABILIZING THE FLOW COEFFICIENT FOR PITOT-TYPE FLOWMETERS WITH A DOWNSTREAM-FACING PORT

... "METHOD AND APPARATUS FOR STABILIZING THE FLOW COEFFICIENT FOR PITOT-TYPE FLOWMETERS WITH A DOWNSTREAM-FACING PORT" This invention relates to the novel method for stabilizing the pressure sensed by the downstream-facing port of a pitot tube type flowmeter over a broad flow range, thereby providing a stable and repeatable flow coefficient. The invention comprises localizing the areas of boundary layer separation across deflecting surfaces located upstream of said port by sharply contouring the edges thereof and directing the flowing stream thereacross, and preventing reattachment of said boundary layer by positioning and contouring the edges containing said port downstream of said sharply contoured edges so as to continuously lie within the wake of the fluid flowing around the latter over a broad range of flow rates. The invention also encompasses the improved averaging pitot-type flowmeter characterized by flow deflecting means. having sharply contoured edges on both sides thereof effective ...

INDUCTIVE HEATING OF AIR DATA PROBES

INFRASTRUCTURE MONITORING DEVICES, SYSTEMS, AND METHODS

DYNAMIC PRESSURE REGISTRATION DEVICE FOR INTERNALLY REGISTERED ACTUATORS AND OVERPRESSURE PROTECTION DEVICES

A fluid regulating device includes a regulator valve (12) having an inlet (14), an outlet (16), and a valve port (18) disposed between the inlet (14) and the outlet (16). An actuator (20) is coupled to the regulator valve (12) and includes a valve disc (22) that displaces between a closed position and an open position. The device also includes an overpressure protection device (25) adapted to stop flow from the inlet to the outlet when pressure in a control cavity reaches a predetermined level. The overpressure protection device (25) includes a sensing tube (28) having a first end (29) in fluid communication with the control cavity (27) and a second end (30) in fluid communication with the outlet (16). The sensing tube (28) has a first portion extending parallel to the flow axis. One or more apertures (34) are disposed in the sensing tube (28) adjacent to the second end (30), and each of the apertures (34) has a centerline that is perpendicular to the flow axis.

AIR DATA PROBE WITH IMPROVED PERFORMANCE AT ANGLE OF ATTACK OPERATION

An air data probe has a pitot tube with a tap at a forward end that defines an inner flow path. The inner flow path decreases in the cross-sectional area until reaching a throat. The inner flow path has cross-sections that are generally cylindrical and also has sections of removed material. Other embodiment have unique shapes.

HYBRID MATERIAL PITOT TUBE

A pilot tube includes a substantially cylindrical body portion having an interior defining a flow passage and a tip portion extending along a pilot tube axis from the body portion. The tip portion includes a disk, a tip cover and a high terminal conductive insert disposed between the disk and the tip cover and in thermal contact with both.

METHOD FOR MEASURING FLOW RATE AND DIRECTION OF A FLUID IN A CONDUIT

A method of measuring fluid flow through a conduit first finds a null position then rotates the probe 90.degree. from the null position to be aligned with the true flow direction of the field. The null position is found by incremental movement of the probe through selected angles. At each position a differential pressure reading is taken. These readings are then compared to determine subsequent incremental movements to identify an approximate null position. The true null position is found from the approximate null by applying at least squares fit to differential pressure readings taken within a range, preferably +/-5.degree., around the approximate null. The probe is then rotated 90.degree. from the null position. A plurality of differential pressure readings are taken and the square root of each such reading is found. An average of those square roots is multiplied by a predetermined constant to find the flow rate.

AERODYNAMIC PROBE INTERNAL CONSTRUCTIONS

PCT/US90/06567 A short, strut-mounted, multifunction air data sensing probe (20) providing reduced drag, weight and radial cross section has a modular internal construction providing a multiple passageway pressure assembly (35) to transfer sensed pressure signals from individual sensing ports (25,31,32) on a probe barrel (21) to pressure carrying conduits (57,62,66,73,74) extending into the mounting strut (30) of the probe (20). The modular construction eliminates the need for having interior chambers made by fixing a series of difficult to locate bulkheads on the probe interior, with separate lines running from each of the chambers to provide the pressure signal from each of the ports. The modular construction also permits mounting a deicing heater (95) on internal parts other than the outer probe shell so that the manufacture of the probe (20) is further simplified, and the types of material used for the probe shell (21) can be changed without concern about heater mounting.

Messeinrichtung zur elektrischen Mengenmessung für flüssige und gasförmige, durch ein Hauptrohr strömende Medien

Strömungssonde

Electronic heat flow meter

FLOWMETER PITOT TUBE.

FLOW MEASURING DEVICE AND USE THEREOF IN LIQUID/GAS SYSTEMS WITH TWO OR MORE PHASES.

METHOD AND DEVICE FOR DETERMINING THE GAS PRESSURE BEFORE THE GAS-LIQUID FLOW

STABILIZING DEVICE FOR TUBES GAGE

СПОСОБ И УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ ДАВЛЕНИЯ ГАЗА В ГАЗОЖИДКОСТНОМ ПОТОКЕ

В изобретении представлены устройство и способ для определения статического давления газа в газожидкостном потоке. Устройство и способ могут быть бесконтактными относительно анализируемого потока. Устройство и способ могут включать закручивание многофазного потока так, что поток разделяется на газовое ядро и наружный жидкостный слой, измерение параметров потока, включающее тангенциальную скорость жидкостного слоя, задержку жидкости и статическое давление потока на стенке трубопровода и определение статического давления газа в газовом ядре из измеренных параметров течения.

DEVICE FOR MEASURING OF VELOCITY OF FLUID MEDIUM

Ultra low pressure drop flow sensor

A fluid velocity sensor includes a sensor die for detecting a fluid property of a fluid flowing through a low resistance flow channel defined by a flow channel wall. One or more tap can be oriented facing into a direction of a flow stream of a fluid flowing through a flow channel defined by a channel wall, wherein the tap(s) leads to the low resistance flow channel, which directs the flow to the sensor die. At least one or more other taps can be located to face perpendicular to the direction of flow, such that the fluid after passing over the sensor die continues on a low resistance path to the other tap(s) facing perpendicular to or opposite to the direction of flow. The fluid velocity sensor can be arranged in a uni-directional or bi-directional fluid flow configuration.

DEVICE Of GAS SAMPLING FOR a CONDUIT OR a CHIMNEY

MEASURE FLOW IN A VENTILATOR.

DEVICE Of MULTIPOINT ACQUISITION/DISTRIBUTION OF FLUID, IN PARTICULAR PROBE OF PRESSURE TAP IN an AIR INTAKE OF TURBOSHAFT ENGINE

De manière générale, l'invention vise à réaliser une acquisition ou une distribution de fluide - en multipoints - précise et rapide avec une bonne résolution spatiale et un encombrement minimal. Pour ce faire, l'invention prévoit un agencement torsadé de conduits dans la zone d'acquisition/distribution permettant d'effectuer plusieurs acquisitions / distributions sur plusieurs hauteurs avec un même dispositif. En particulier, concernant une acquisition de mesure de giration en vol, le dispositif est une sonde de pression (10), dans laquelle un corps (1) de sonde présente une première partie (12) ou tronçon d'acquisition de pression formant un cylindre de moins de 6 mm de diamètre. La sonde (10) présente des conduits internes (C1 à C9) formant des tracés hélicoïdaux parallèles sur le tronçon (12) et des canaux (K1 à K9) formés dans un corps en alliage métallique (1) entre les conduits (C1 à C9) et des orifices d'entrée (O1 à 09). Le nombre de conduits internes (C1 à C9) est avantageusement ...

Global mass flow measuring device for ventilator in airplane, has output terminal delivering signal of determined mass flow to output of ventilator, where value of determined flow is polynomial function of local mass flow

measurement device pressure differential

Sonda de medida de pressão diferencial com ruìdo reduzido

Fästmedel för ett sensorrör

EXHAUST GAS TURBOCHARGER FOR AN INTERNAL COMBUSTION ENGINE

An exhaust gas turbocharger for an internal combustion engine (10) has an exhaust gas turbine (16) in an exhaust gas line (14) of the internal combustion engine (10) and a compressor (20) in an intake duct (18) of the internal combustion engine (10). In addition, a dynamic pressure probe (38) is provided upstream of a compressor wheel (30) of the compressor (20) in its flow passage (32), said dynamic pressure probe (38) being designed for recording at least the total pressure in the flow passage of the compressor in order to finally be able to determine an air mass drawn in by the internal combustion engine. Such an exhaust gas turbocharger (12) with integrated dynamic pressure probe (38) can also be used in particular in utility vehicles.

BALLAST WATER TREATMENT MONITORING SYSTEM

A method and system for taking a sample of ballast water. The method includes withdrawing a sample of ballast water via a tube inserted in a ballast water pipe, wherein the tube includes a sample inlet, and isokinetic flow is achieved via a pump that controls the flow of the sample ballast water through the tube inlet by comparing a flow of the ballast water pipe with a flow of the sample ballast water through the tube; and controlling the flow of water through the sample tube inlet when a flow of the ballast water pipe is sensed to be different; withdrawing a portion of the sample ballast water for testing; and returning remaining sample ballast water to the ballast water pipe.

Fluid flow measuring devices

The invention forming the subject matter hereof comprises a flow measuring device for use in fluid-carrying conduits characterized by an elongate housing member including a longitudinally-extending slot communicating the interior thereof and opening upstream, a first tubular impact probe mounted within the housing and having a port in the wall thereof opening in a direction other than toward the slot in the latter, and a second tubular suction probe mounted inside the housing alongside the impact probe, the suction probe also including a port in the wall thereof facing downstream.

Fluid flow measuring

Means for ensuring the accuracy and reliability of fluid flow measurements when the fluid contains substantial quantities of entrained particulates, the measurements being taken with a pitot tube and a pressure-sensing means wherein the pitot tube is disposed in a duct through which the fluid flows and has at least one velocity pressure-sensing orifice facing the upstream direction of flow. The means includes a remotely controllable rotation means for interposing a barrier between the orifice and the upstream direction of flow when velocity pressure measurements are not being taken. In accordance with one embodiment the rotation means comprises a remotely actuated cover and in another embodiment the rotation means comprises means for rotating the tube whereby the orifice faces in a downstream direction when velocity pressure measurements are not being taken. There also is provided means for purging the orifice.

PITOT PLUG FOR FLUID-METERS.

Combined mass flow/pitot tube meter

A mass flow meter probe having an upstream tube and a downstream tube that extends into a main gas flow conduit is disclosed. The sensor for the mass flow measurement is located in the bore of a housing connecting the tubes and by incorporating the sensor into a valve that can block flow between the tubes, the mass flow meter can be calibrated in the field. The probe can be used as differential pressure device for flow measurments, when the valve is closed. A means for cleaning pressure ports is also disclosed.

Automated system and method for probe measurement of stack gas flow properties

A system and method for the automated measurement of properties related to a stack gas stream, flow velocity for example. A probe assembly (24) is introduced into a stack through a test port and operated by an automated mechanism mounted on the test port to position a sensing tip (28) at various locations within the gas stream at proper yaw angle. A framework (30, 32, 34, 36) of the automated mechanism provides bearing support for the probe assembly while allowing the probe assembly to translate on the framework along an axis but constraining the probe assembly from turning on the framework about the axis. With a gripper assembly (44) gripping the probe assembly and another gripper assembly (56) released, a linear actuator (40) can move the gripper assembly (44) along the axis to translate the probe assembly on the framework. A motor (70), also mounted on the framework, can turn a pinion (66) that is in mesh with a toothed segment (64) of a ring gear (62) that attaches to the stack port ...

Averaging pitot probe

To measure speed of gas flow in direction F along pipe 8 a flowmeter 2 is used comprising a gas flow sensor 4 connected by tubing 50,52 with an averaging pitot probe 6 formed by two tubes 10 and 12 of circular cross-section disposed side by side and closed at their one and the same ends 14 and 16 and mounted in a gas tight manner in a sleeve 18 which fits in aperture 20 in the wall of pipe 8 and is secured in a gas tight manner to the pipe (8). The two tubes 10 and 12 are identical in shape and dimensions and each has four circular holes 22 through its tube wall. All the holes 22 are of the same shape and size, and each has a diameter in the range 0.4mm to 1.00mm. The internal diameter of each tube 10,12 is at least 1.59mm, and the ratio of the cross-sectional area of each tube (10, 12) to the cross-sectional area of each hole 22 is at least 9:1. The positions of the holes 22 in one tube (10, 12) are identical to the positions of the holes in the other tube (10, 12) except that the holes ...

УСТРОЙСТВО ИЗМЕРЕНИЯ ПОТОКА НА ОСНОВЕ ДИФФЕРЕНЦИАЛЬНОГО ДАВЛЕНИЯ С УСОВЕРШЕНСТВОВАННОЙ КОНФИГУРАЦИЕЙ ТРУБКИ ПИТО

FIELD: measuring equipment. SUBSTANCE: system (12) of the flux measuring on basis of differential pressure comprises the pressure sensor (28), which is linked to the measuring instrument (34) scheme. The extended probing device (20) is capable of the insertion into the pipeline (18), which transfers the flux of the process fluid medium. The extended probing device, which is linked to the pressure sensor, has the cross-section in "T" form with the part, which is located upstream at the top of "T" and is generally perpendicular to the flux, and to the rear part, which lies in the direction, which is generally perpendicular to the flux. The system (12) of the flux measuring also comprises the upstream located compression chamber in the upstream located probing device part. The chamber has at a minimum one upstream located vent, which is connected to the pressure sensor, for, in so doing, pressure application from above with the stream to the pressure sensor; the downstream located compression chamber in the downstream located probing device part. The chamber has at a minimum one downstream located vent, which is connected to the pressure sensor, for, in so doing, pressure application from the bottom with the stream to the pressure sensor. The pressure sensor (28) measures the pressure difference in the fluid medium flux. The difference is created when fluid medium passing by the probing device (20). The swirling stabiliser (80, 90) is housed nearby the probing device (20) and in the flux of the process fluid medium. The swirling stabiliser (80, 90) is capable of the swirling stabilization in the fluid medium flux nearby the probing device (20). EFFECT: measurement accuracy increase by means of the low-frequency oscillations swirling stabilization. 29 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 638 916 C2 (51) МПК G01F 1/37 (2006.01) G01F 1/46 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)( ...

УСТРОЙСТВО РЕГИСТРАЦИИ ДИНАМИЧЕСКОГО ДАВЛЕНИЯ ДЛЯ ПРИВОДОВ И УСТРОЙСТВ ЗАЩИТЫ ОТ ИЗБЫТОЧНОГО ДАВЛЕНИЯ ВНУТРЕННЕГО РАСПОЛОЖЕНИЯ

FIELD: control; regulation. SUBSTANCE: invention relates to fluid flow regulators, such as gas flow regulators, and in particular to gas pressure regulators that comprise the system for preventing unsafe conditions of outlet pressure. Fluid flow controller comprises the control valve (12), which comprises the inlet (14), the outlet (16) and the valve opening (18), which is located between the inlet (14) and the outlet (16). Actuator (20) is attached to the regulating valve (12) and comprises the valve plate (22), which is performed to be movable between the closed position and the open position. Device also comprises the overpressure protection device (25), which is configured in order to stop fluid flow from the inlet to the outlet, when the pressure in the adjusting cavity reaches the predetermined level. Overpressure protection device (25) comprises the measuring tube (28), which has the first end (30) in fluid communication with the outlet (16) and the second end (29) in fluid communication with the adjustment cavity (27) .Measuring tube (28) has the first portion, which extends parallel to the flow axis. At least one opening (34) is located in the measuring tube (28) near the first end (30), at this each of the openings (34) has the a center line, which is perpendicular to the flow axis. EFFECT: technical result is aimed at providing control over the outlet pressure of the fluid. 20 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 653 279 C2 (51) МПК F16K 31/165 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F16K 31/00 (2006.01); F16K 31/12 (2006.01); F16K 31/126 (2006.01); F16K 31/165 (2006.01) (21)(22) Заявка: 2015116145, 01.10.2013 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: 01.10.2012 US 61/708,530 (43) Дата публикации заявки: 27.11.2016 Бюл. № 33 (56) Список документов, цитированных в отчете о поиске: US 2009/261281 A1, 22.10. ...

УСТРОЙСТВО ИСКУССТВЕННОЙ ВЕНТИЛЯЦИИ ЛЕГКИХ С ДАТЧИКОМ РАЗНОСТИ ДАВЛЕНИЙ

Группа изобретений относится к медицинской технике, а именно к устройству (1) искусственной вентиляции легких и способу эксплуатации аппарата искусственной вентиляции легких. Устройство содержит воздуходувку (12), которая приводится в действие двигателем (16) воздуходувки, и двигатель (16) воздуходувки по меньшей мере частично установлен на опорном элементе (14). Опорный элемент (14) дополнительно содержит проводящую структуру, которая принудительно направляет в области радиатора (15) охлаждающий воздух, перемещаемый с помощью воздуходувки (12). Опорный элемент изготовлен из силикона и реализует проводящую структуру для охлаждающего воздуха таким образом, что охлаждающий воздух направляется согласованно со структурой радиатора (15). Способ заключается в том, что в устройстве (1) искусственной вентиляции легких используют воздуходувку (12), причем у нее двигатель (16) воздуходувки установлен на опорном элементе (13, 14), и во включенном состоянии устройства (1) искусственной вентиляции легких ...

УСТРОЙСТВО ДЛЯ МНОГОТОЧЕЧНОГО ПОЛУЧЕНИЯ ДАННЫХ/РАСПРЕДЕЛЕНИЯ СРЕДЫ, В ЧАСТНОСТИ, ЗОНД ДЛЯ ЗАМЕРА ДАВЛЕНИЯ В ВОЗДУХОЗАБОРНИКЕ ТУРБОМАШИНЫ

... 1. Устройство для многоточечного получения данных/распределения среды, содержащее, по меньшей мере, два внутренних трубопровода (С1-С9), расположенных в корпусе (1), отличающееся тем, что трубопроводы размещены по спиральным линиям в отрезке (12) по оси корпуса (1), в котором может быть осуществлено получение нескольких данных/распределений путем использования нескольких отверстий входа/выхода (01-09), образованных на оболочке (11) корпуса (1) в нескольких параллельных плоскостях (Н1, Н2, Н3), при этом положение отверстий (01-09) и шаг трубопроводов (С1-С9) определены таким образом, что, по меньшей мере, одно отверстие соответствует одному единственному трубопроводу.2. Устройство по п.1, в котором внутренние трубопроводы (С1-С9) имеют сечение продолговатой формы для увеличения объема трубопроводов, соответствующих объему зонда в отрезке (12) получения данных/распределения.3. Устройство по п.1, в котором корпус зонда является цилиндрическим, а внутренние трубопроводы (С1-С9) имеют форму ...

АЭРОДИНАМИЧЕСКИЙ ДАТЧИК

Использование: определение параметров воздушного потока текучей среды. Сущность изобретения: короткий, устанавливаемый с помощью сжатого элемента многофункциональный аэродинамический датчик имеет модульную конструкцию, образующую многоканальный напорный блок для передачи зафиксированных сигналов давления от индивидуальных фиксирующих отверстий на цилиндрической оболочке датчика в напорные трубопроводы, доходящие до монтажного сжатого элемента датчика. 2 с.п. ф-лы, 15 з.п. ф-лы, 13 ил.

КОНФОРМНЫЙ ДАТЧИК СКОРОСТИ ВОЗДУХА С МИКРОЭЛЕКТРОМЕХАНИЧЕСКОЙ СИСТЕМОЙ (MEMS)

... 1. Устройство, содержащее:гибкую конструкцию, имеющую внешнюю поверхность с первым сформированным в ней открытым каналом для воздуха, ипервый датчик давления, установленный в гибкой конструкции в положении с нижней стороны и сообщающийся по текучей среде с первым открытым каналом для воздуха.2. Устройство по п. 1, в котором гибкая конструкция содержит входное отверстие для отбора статического давления и камеру статического давления, сообщающуюся по текучей среде с указанных входным отверстием, причем первый датчик давления сообщается по текучей среде с камерой статического давления.3. Устройство по п. 1, в котором первый датчик давления представляет собой емкостной датчик дифференциального давления, содержащий микроэлектромеханическую систему, причем первый датчик давления дополнительно содержит деформируемую диафрагму-мембрану, имеющую сформированный на ней первый электрод, и подложку, имеющую сформированный на ней второй электрод, причем первый и второй электроды отделены друг от друга ...

Flowmeter for use in internal combustion engine of automobile area, has connector part comprising inflow side and outflow side, and two pressure tapping points provided at side wall and at outer wall of connector part, respectively

The flowmeter (118) has a connector part (116) comprising an inflow side (122) and an outflow side (124), where the flowmeter is made from ceramic material or powder metallurgical material. An accumulation chamber (126) is accessible through an opening and formed in the connector part. Two pressure tapping points are provided at a side wall and at an outer wall of the connector part, respectively. The connector part has a cleaning channel that connects the chamber with the outflow side, where the chamber includes a rounded cross-section. An independent claim is also included for a method for manufacturing a flowmeter for measuring flow of a fluid medium flowing through a flow pipe.

INTERNE STRUKTUREN AERODYNAMISCHER FÜHLER.

ELEKTROOPTISCHER OSZILLATOR UND VERFAHREN ZUM BETREIBEN DESSELBEN

Improvements in or relating to flow metering

Differential pressure anemometer

DEVICE FOR FLOW MEASUREMENT IN VENTILATION AND AIR CONDITIONING SYSTEMS

FLOW METER

Vorrichtung und Verfahren zur Messung eines Druckes

The invention relates to a device (1) and to a method for measuring a pressure. The device, in particular a Pitot tube, comprises a tube (2) having a first opening (3), and a first pressure measuring unit (4) for determining a pressure acting on the first opening (3). In order to avoid a blocking of the tube (2), and to allow an interruption-free measurement at the same time, according to the invention a delivery unit, in particular a pump, is provided in order to generate a pressure in a medium located in the tube (2), said pressure decreasing toward the first opening (3). The device (1) is designed such that whenever the tube (2) is filled with a medium, upon which a pressure that decreases toward the first opening (3) acts, a pressure acting upon the first opening (3) can be indirectly measured via the medium using the first measuring unit (4).

Vorrichtung und Verfahren zur Messung eines Druckes

The invention relates to a device (1) and to a method for measuring a pressure. The device, in particular a Pitot tube, comprises a tube (2) having a first opening (3), and a first pressure measuring unit (4) for determining a pressure acting on the first opening (3). In order to avoid a blocking of the tube (2), and to allow an interruption-free measurement at the same time, according to the invention a delivery unit, in particular a pump, is provided in order to generate a pressure in a medium located in the tube (2), said pressure decreasing toward the first opening (3). The device (1) is designed such that whenever the tube (2) is filled with a medium, upon which a pressure that decreases toward the first opening (3) acts, a pressure acting upon the first opening (3) can be indirectly measured via the medium using the first measuring unit (4).

Vorrichtung zur Geschwindigkeitserfassung mit einer Kielsonde

Es wird eine Vorrichtung (1) zur Geschwindigkeitserfassung mit einer Kielsonde (2), die eine Strömungsgeschwindigkeitssonde aufweist, die von einem eine Venturidüse bildenden Mantelkörper (3) umfasst ist, beschrieben. Um vorteilhafte Messbedingungen zu schaffen, wird vorgeschlagen, dass der Mantelkörper (3) als Mehrlochstaudrucksonde mit über den Mantelumfang verteilt angeordneten Löchern (4) im Mantelkörper (3) ausgebildet ist.

PROCEDURE AND DEVICE FOR USING AND SEALING A FLOW METER OF THE TYPE OF PITOT TUBE IN A PIPE.

DIFFERENTIAL PRINTING FLOW PROBE.

DIFFERENTIAL PRESSURE FLOW PROBE

APPARATUS FOR MEASURING RESPIRATORY GAS FLOW BY MEANS OF A DISPOSABLE RESPIRATORY TUBE

Flowmeter primary element with sensors

A process variable transmitter (12) is configured as a flowmeter for measuring flow of a process fluid through a conduit (18). The transmitter (12) includes a pitot tube (22) extending into the conduit (18) which creates a differential pressure in the process fluid due to flow of the process fluid. An upstream process variable sensor (60L) is mounted on the pitot tube (22) and coupled to the flow of process fluid to sense an upstream process variable of the process fluid. A downstream process variable sensor (60T) is mounted on the pitot tube (22) downstream of the upstream process variable sensor (60L) and coupled to the flow of process fluid to sense a downstream process variable of the process fluid. Measurement circuitry (34) determines the flow of the process fluid based upon the upstream process variable and the downstream process variable.

FLUID FLOW MEASURING APPARATUS

FLUID PRESSURE SENSING APPARATUS

AVERAGE FLUID FLOW SENSOR

A sensor for providing a differential pressure signal indicative of the average relative rate of flow of a fluid through a duct. Two tubular members are provided, each of which are formed in a loop oriented transverse to the fluid flow and each having a plurality of spaced-apart orifices along their length. In one of the tubular members, the orifices face upstream toward the impinging fluid flow; in the other, the orifices face downstream. The difference between the pressures developed within the two tubular members as a result of the orientation of these orifices relative to fluid flow is indicative of the average rate of fluid flow in the duct.

DEVICE FOR MEASURING THE VOLUME FLOW OF A FAN

A measuring device for measuring a pressure difference (.DELTA.p) and thereby the volume flow (qv) of a fan by carrying out the measuring of the pressure difference (.DELTA.p) in a two-chamber measuring part (2) located in the pressure aperture or its continuation in the fan, each chamber having small-diameter apertures (5), that inner surface (8) of the measuring-device housing (1) against which or close to which the measuring part (2) is located being the cut-off (10) or extended cut-off (9) of the fan mantle, or a continuation of these. The measuring part (2) is installed inside the housing (1) in such a manner that the direction (F) of the flow to be measured is substantially perpendicular to the length (C) of the measuring part. Figure 1 ...

METHOD AND APPARATUS FOR STABILIZING THE FLOW COEFFICIENT FOR PITOT-TYPE FLOWMETERS WITH A DOWNSTREAM-FACING PORT

AIR VELOCITY MEASURING SYSTEM AND METHOD FOR ITS CALIBRATION

NOISE REDUCING DIFFERENTIAL PRESSURE MEASUREMENT PROBE

A differential pressure measuring probe with an improved signal to noise ratio is provided. The probe includes a substantially flat longitudinally extending impact surface (46) that is configured to create a dome of high pressure in the impacting fluid.

INFRASTRUCTURE MONITORING DEVICES, SYSTEMS, AND METHODS

TESTING OF FLOW METERS

A test module for a twin pitot tube airflow meter including a differential pressure sensor, the module including a controller coupled to a series of solenoid valves to control the differential pressure signal from the pitot tubes to the pressure sensor and from an air supply source to the pressure sensor, and an adjustable regulator to control and regulate the pressure of air from the supply source whereby in a span test cycle the solenoid valves isolate pressure signal from the pitot tubes but open controlled and regulated pressure to the differential pressure sensor to test the accuracy of the differential pressure sensor.

FLOWMETER PRIMARY ELEMENT WITH SENSORS

A process variable transmitter (12) is configured as a flowmeter for measuring flow of a process fluid through a conduit (18). The transmitter (12) includes a pitot tube (22) extending into the conduit (18) which creates a differential pressure in the process fluid due to flow of the process fluid. An upstream process variable sensor (60L) is mounted on the pitot tube (22) and coupled to the flow of process fluid to sense an upstream process variable of the process fluid. A downstream process variable sensor (60T) is mounted on the pitot tube (22) downstream of the upstream process variable sensor (60L) and coupled to the flow of process fluid to sense a downstream process variable of the process fluid. Measurement circuitry (34) determines the flow of the process fluid based upon the upstream process variable and the downstream process variable.

FLOW MEASURING APPARATUS AND INHALATION APPARATUS COMPRISING THE SAME

The present document describes a flow measuring apparatus for measuring a flow through a section of an inhalation apparatus, and an inhalations apparatus for drug delivery by inhalation comprising the flow measuring apparatus. The flow measuring apparatus comprises a set of Pitot tubes configured for traversing entirely the lumen of the section of an inhalation apparatus. The set of Pitot tubes comprises a first and second Pitot tube which are respectively fluidly connected to a differential pressure sensor, for measuring a difference between a dynamic pressure and a static pressure within the flow measuring apparatus.

SAMPLE COLLECTING DEVICE FOR DROPLET AND GAS SAMPLING IN NARROW DUCTS OF A GAS TURBINE OR ANY OTHER DEVICE WITH AN OIL BREATHER

The present invention relates to an analysing arrangement (100) for analysing a composition of a fluid, such as oil mist, of an engine, e.g. a gas turbine. The analysing arrangement (100) comprises a breather pipe (130) which is coupleable to the gas turbine such that at least a part of the fluid is flowing through the breather pipe (130), a first collecting device (110) for collecting a first sample of the fluid, wherein the first collecting device (110) is configured for providing a first composition analysis of the first sample and a second collecting device (120) for collecting a second sample of the fluid, wherein the second collecting device (120) is configured for providing a second composition analysis of the second sample. The first collecting device (110) and the second collecting device (120) are arranged inside the breather pipe (130) such that the first collecting device (110) and the second collecting device (120) are exposed to a common flow characteristic of the fluid inside ...

FLOW MEASURING APPARATUS

This is an apparatus for accurately and reliably measuring fluid flow under turbulent or pulsating conditions with high signal to noise ratio and using a symmetrical design which works with How in either directio n. The apparatus is particularly well suited for measuring airflow in a bi-level respiratory system. The apparatus includes a flow conduit (34), an upstream sense tube (36) protruding into the flow a conduit (34) with a notch opening (38) facing into die flow stream, a downstream sense tube (40) protruding into the How conduit (34) with a notch opening (42) facing away from die flow stream, and a flow or pressure sensor/transducer (44) disposed in connecting lines (46, 48) between the upstream and downstream sense tubes (36, 40). The notch ed opening (38, 42) has a square, semi-cylindrical shape. The sow conduit (34) is either straight or angled.

FLOWMETER WITH PITOT TUBE WITH AVERAGE PRESSURE

A transmitter (10) in a process control system for measuring flow rate measures total pressure (PTOT) and differential pressure (h) of process fluid flowing through a process pipe. The static pressure (PSTAT) is det ermined based upon the total pressure (PTOT). The calculated static pressure is used to determine the fluid density (p) and the gas expansion factor (Y1) of the process fluid flowing in the pipe (12). This information is used to calculate flow rate (Q) of the process fluid.

Device for multipoint acquisition/distribution of fluid, in particular probe for tapping pressure in a turbomachine air inlet

To achieve accurate and rapid acquisition or distribution of fluid—at multipoints—with good spatial resolution and minimal bulk, a twisted arrangement of ducts is provided in the acquisition/distribution zone making it possible to perform several acquisitions/distributions over several heights with one and the same device. The device is a pressure probe in which a probe body exhibits a first part or section for acquiring pressure forming a cylinder less than 6 mm in diameter. The probe exhibits internal ducts forming parallel helicoidal traces on the section and channels formed in a metal alloy body between the ducts and inlet orifices. The number of internal ducts is advantageously equal to nine, including three orifices being disposed over three different heights of the probe body.

BALLAST WATER TREATMENT MONITORING SYSTEM

A method and system for taking a sample of ballast water. The method includes withdrawing a sample of ballast water via a tube inserted in a ballast water pipe, wherein the tube includes a sample inlet, and isokinetic flow is achieved via a pump that controls the flow of the sample ballast water through the tube inlet by comparing a flow of the ballast water pipe with a flow of the sample ballast water through the tube; and controlling the flow of water through the sample tube inlet when a flow of the ballast water pipe is sensed to be different; withdrawing a portion of the sample ballast water for testing; and returning remaining sample ballast water to the ballast water pipe. 1. A method for taking a sample of ballast water , comprising:withdrawing a sample of ballast water via a tube inserted in a ballast water pipe, wherein the tube includes a sample inlet, and isokinetic sampling is achieved via a pump that controls the flow rate of the sample ballast water through the tube inlet by comparing a fluid velocity of the ballast water pipe with a fluid velocity of the sample ballast water through the tube;controlling the flow of water through the sample tube inlet when a flow velocity of the ballast water pipe is sensed to be different than a velocity of the ballast water in the pipe;withdrawing a portion of the sample ballast water for testing; andreturning remaining sample ballast water to the ballast water pipe.2. The method of claim 1 , wherein the sample ballast water is withdrawn and returned via a pitot tube assembly comprising a housing and a wand inside the housing claim 1 , wherein sample ballast water is withdrawn through the wand claim 1 , and sample ballast water is returned via the housing.3. The method of claim 2 , further comprising extending the wand from within the housing to reach a sampling location inside the ballast water pipe.4. The method of claim 2 , wherein the wand seals against the housing claim 2 , and sample ballast water is withdrawn ...

DEVICE FOR MAINTAINING AND ANALYZING AN AERODYNAMIC PROBE

A device for maintaining and analyzing an aerodynamic probe of stagnation pressure type intended to be installed in an aircraft comprises a channel with a first end that is intended to penetrate into the probe, and means for creating in the channel an air depression relative to the ambient pressure and means for recovering any particles sucked into the channel. 1. A device for maintaining and analyzing an aerodynamic probe of stagnation pressure type for installation in an aircraft , the device comprising: a channel with a first end that is intended to penetrate into the probe , means for creating in the channel an air depression relative to the ambient pressure and means for recovering any particles sucked into the channel.2. The device as claimed in claim 1 , wherein the means for creating a depression comprise an ejector intended to be coupled to a pressurized gas source and ejecting the gas in proximity to a second end of the channel in order to drive the air present in the channel.3. The device as claimed in claim 1 , wherein the recovery means comprise a closed vessel positioned in the line of the channel.4. The device as claimed in claim 3 , wherein the vessel comprises at least one transparent wall.5. The device as claimed in claim 3 , wherein the vessel comprises a removable wall.6. The device as claimed in claim 1 , further comprising means for measuring and displaying the depression prevailing in the channel.7. The device as claimed in claim 1 , wherein the channel claim 1 , at its first end claim 1 , is formed from a flexible material.8. The device as claimed in claim 2 , the recovery means comprising a closed vessel positioned in the line of the channel.9. The device as claimed in claim 4 , the vessel comprising a removable wall.10. The device as claimed in claim 2 , comprising means for measuring and displaying the depression prevailing in the channel.11. The device as claimed in claim 2 , the channel claim 2 , at its first end claim 2 , being formed ...

Flow sensor devices and systems

A flow rate assembly can include a fluid flow interface portion having a front facing wall and a back facing wall. The flow interface portion can include an inlet passage within the fluid flow interface portion, an outlet passage within the fluid flow interface portion, at least one inlet aperture extending through the front facing wall of the fluid flow interface portion into the inlet passage, and at least one outlet aperture extending through the back facing wall of the fluid flow interface portion into the outlet passage. In some cases, the fluid flow interface portion includes a plug forming at least a portion of the inlet passage.

THIN FILM HEATING OF AIR DATA PROBES

An air date probe includes a base portion, a strut portion extending from the base portion, and a tube assembly secured to an extending from the strut portion. One or more of the tube assembly or the strut portion includes a sleeve member having a sleeve outer surface positioned at a sleeve frustum angle relative to a sleeve member axis. A thin film heater is positioned at the sleeve outer surface, and the tin film heater and the sleeve member are positioned in a housing member. The housing member has a housing inner surface having a housing frustum angle such that the thin film heater is retained by compression between the housing member inner surface and the sleeve member outer surface. 1. An air date probe , comprising:a base portion;a strut portion extending from the base portion; anda tube assembly secured to an extending from the strut portion; a sleeve member having a sleeve outer surface positioned at a sleeve frustum angle relative to a sleeve member axis;', 'a thin film heater disposed at the sleeve outer surface; and', 'a housing member into which the sleeve member and thin film heater are installed, the housing member having a housing inner surface having a housing frustum angle such that the thin film heater is retained by compression between the housing member inner surface and the sleeve member outer surface., 'wherein one or more of the tube assembly or the strut portion includes2. The air data probe of claim 1 , wherein the sleeve frustum angle is substantially equal to the housing frustum angle.3. The air data probe of claim 1 , wherein the sleeve frustum angle and the housing frustum angle are between 0.5 and 20 degrees.4. The air data probe of claim 1 , wherein the thin film heater is one of a positive temperature coefficient heater based on carbon black/polymer composites or a carbon nanotube/silicone nano-composite heater.5. The air data probe of claim 1 , wherein the thin film heater has a thickness of about 0.03″.6. The air data probe of ...

INFRASTRUCTURE MONITORING DEVICES, SYSTEMS, AND METHODS

An infrastructure monitoring assembly includes a nozzle cap defining an internal cavity; an antenna positioned at least partially external to the internal cavity; and the antenna covered with a non-metallic material. An infrastructure monitoring assembly includes a nozzle cap defining a first end and a second end, the first end defining a threaded bore configured to mount on a nozzle of a fire hydrant; a cover coupled to the nozzle cap opposite from the first end; an enclosure positioned at least partially between the cover and the first end, the enclosure at least partially defining a cavity; a monitoring device positioned within the cavity; and an antenna positioned between the cover and the first end of the nozzle cap, the antenna connected in electrical communication with the monitoring device, the antenna covered by a non-metallic material. 1. An infrastructure monitoring assembly comprising:a nozzle cap defining an internal cavity;an antenna positioned at least partially external to the internal cavity; andthe antenna covered with a non-metallic material.2. The infrastructure monitoring assembly of claim 1 , wherein the antenna is enclosed between the non-metallic material and the nozzle cap.3. The infrastructure monitoring assembly of claim 1 , further comprising an enclosure claim 1 , the enclosure further defining the internal cavity.4. The infrastructure monitoring assembly of claim 3 , further comprising a cover coupled to the enclosure claim 3 , the cover further defining the internal cavity claim 3 , the enclosure and the cover forming a water tight seal.5. The infrastructure monitoring assembly of claim 3 , further comprising a monitoring device positioned within the enclosure.6. The infrastructure monitoring assembly of claim 5 , wherein the monitoring device is connected in electrical communication with the antenna.7. The infrastructure monitoring assembly of claim 1 , wherein:the nozzle cap defines a bore extending through the nozzle cap to the ...

CONTAINER AND METHOD FOR THE OPERATION THEREOF

A container for transporting flowable filling material includes a tank with a gas connection to which a protective gas line can be connected. A sensor device including an adapter element and a telemetry module is connected to the gas connection of the tank by the adapter device. The adapter element has a gas connection piece and a medium channel. A protective gas line can be connected to the gas connection piece of the adapter when the adapter is connected to the gas connection of the tank so that a protective gas can be guided through the gas connection piece and the medium channel of the adapter and into an interior of the tank. The telemetry module has a sensor that senses data relating to a state parameter of the container and/or filling material and a transmitter for wirelessly transmitting the data. 122.-. (canceled)23. A container for transporting a flowable filling material , comprising:a frame configured to place the container on the ground;a tank for storing the filling material, the tank being supported by the frame at a distance from the ground so that a bottom side of the tank is accessible, the bottom side of the tank having opening through which the filling material is conducted into an interior of the tank for filling the tank and through which the filling material is removed from the interior, and the tank having a gas connection connectable with a protective gas line;a sensor device including a telemetry module and an adapter element having a gas connector and a medium channel, the sensor device being connectable to the gas connection of the tank by the adapter element,wherein the gas connector of the adapter element is connectable to a protective gas line when the adapter is connected to the gas connection of the tank so that a protective gas is conductible through the gas connector and the medium channel of the adapter element and into the interior of the tank, andthe telemetry module includes a sensor and a transmitter, the sensor being capable ...

BIPHASE HEATING

A piece of aeronautic equipment intended to equip an aircraft, the equipment piece () including at least one part intended to be arranged at a skin () outside of the aircraft and heating elements for that part, which include a thermodynamic loop including a closed circuit in which a heat transfer fluid circulates, the closed circuit including an evaporator and a zone in which condensation of the heat transfer fluid can occur in the appendage to heat it, outside the evaporator, the circuit in which the fluid circulates is formed by a tubular channel with an empty section, at least the part of the piece of equipment arranged outside the aircraft is made by additive manufacturing and includes a fastening base () for fastening on the skin of the aircraft from which support elements () for a Pitot tube () provided with lateral static pressure taps () extend. 1. A piece of aeronautic equipment intended to equip an aircraft , the piece of equipment comprising at least one part intended to be arranged at a skin of the aircraft outside the latter and means for heating that part , characterized in that the heating means comprise a thermodynamic loop comprising a closed circuit in which a heat transfer fluid circulates , the closed circuit comprising an evaporator and a zone in which a condensation of the heat transfer fluid can occur in the appendage to heat it , in that outside the evaporator , the circuit in which the fluid circulates is formed by a tubular channel with an empty section , in that at least the part of the piece of equipment arranged outside the aircraft is made by additive manufacturing and includes a fastening base for fastening on the skin of the aircraft from which support means for a Pitot tube provided with lateral static pressure taps extend.2. The aeronautic equipment according to claim 1 , characterized in that the channel is configured for the fluid to circulate therein by capillarity.3. The aeronautic equipment according to claim 1 , characterized ...

Plane equipment heating

An aircraft provided with at least one piece of aeronautic equipment, the equipment ( 25 ) including a part intended to be arranged at a skin ( 27 ) of the aircraft and elements for heating the part, characterized in that the heating elements include a thermodynamic loop including a closed circuit in which a heat transfer fluid circulates, the closed circuit including an evaporator ( 14 ) associated with functional elements ( 70 ) of the aircraft forming a heat source giving off heat during their operation and a zone in which a condensation of the heat transfer fluid can occur in the appendage to heat it, and in that outside the evaporator, the circuit in which the fluid circulates is formed by a tubular channel with an empty section.

AIRCRAFT

An aircraft including: a penetration member that penetrates an airframe between an inside and an outside via an opening provided in the airframe; a seal that seals a gap set between an opening formation member forming the opening and the penetration member; and a retainer that presses the seal against the penetration member and the opening formation member, wherein each of the penetration member and the opening formation member includes a receiving section that receives the seal, both of the receiving sections are arranged along a direction connecting one side and the other side of the gap with the gap therebetween, and the seal is fixed to only one of the receiving section of the penetration member and the receiving section of the opening formation member. 1. An aircraft comprising:a penetration member that penetrates an airframe between an inside and an outside via an opening provided in the airframe;a seal that seals a gap set between an opening formation member forming the opening and the penetration member; anda retainer that presses the seal against the penetration member and the opening formation member,wherein each of the penetration member and the opening formation member includes a receiving section that receives the seal,both of the receiving sections are arranged along a direction connecting one side and the other side of the gap with the gap therebetween, andthe seal is fixed to only one of the receiving section of the penetration member and the receiving section of the opening formation member.2. The aircraft according to claim 1 ,wherein the opening formation member is a window substitute member that is provided in a window frame of a window provided in the airframe instead of an original window panel.3. The aircraft according to claim 1 ,wherein the opening formation member includesa support that rises from a peripheral edge portion of the formed opening toward an airframe inner side along a penetration direction in which the penetration member ...

SAMPLE COLLECTING DEVICE FOR DROPLET AND GAS SAMPLING IN NARROW DUCTS OF A GAS TURBINE OR ANY OTHER DEVICE WITH AN OIL BREATHER

An analysing arrangement for analysing a composition of a fluid, such as oil mist of an engine, e.g. a gas turbine is provided. The analysing arrangement includes a breather pipe coupleable to the gas turbine such that at least a part of the fluid is flowing through the breather pipe, a first collecting device for collecting a first sample of the fluid, wherein the first collecting device is configured for providing a first composition analysis of the first sample and a second collecting device for collecting a second sample of the fluid, wherein the second collecting device is configured for providing a second composition analysis of the second sample. The first collecting device and the second collecting device are arranged inside the breather pipe such that the first collecting device and the second collecting device are exposed to a common flow characteristic of the fluid inside the breather pipe. 1. An analysing arrangement for analysing a composition of a fluid , of a gas turbine , the analysing arrangement comprising:a breather pipe configure to be coupled to the gas turbine such that at least a part of the fluid is flowing through the breather pipe,a first collecting device for collecting a first sample of the fluid, wherein the first collecting device is configured for providing a first composition analysis of the first sample, anda second collecting device for collecting a second sample of the fluid, wherein the second collecting device is configured for providing a second composition analysis of the second sample,wherein the first collecting device and the second collecting device are arranged inside the breather pipe such that the first collecting device and the second collecting device are exposed to a common flow characteristic of the fluid inside the breather pipe.2. The analysing arrangement according to claim 1 , wherein the first collecting device and the second collecting device have a common distance (d) to a pipe wall of the breather pipe.3. The ...

PITOT-STATIC ANEMOMETRIC TEST ADAPTER

An adapter for isolating the at least one pressure port of a pitot-static tube from ambient conditions. The adapter can be used to perform aircraft anemometric testing and provides a replaceable, leak-proof seal for communicating pressures from the aircraft pitot-static system to testing equipment. 1. A pitot-static test adapter comprising:a mating body with a plurality of grooves and a seal configured and adapted for isolating at least one port of a pitot-static pressure sensing device from ambient pressure conditions;said seal comprising an elongated body having a plurality of protrusions configured and adapted for engaging and retaining the plurality of grooves.2. The pitot-static test adapter of claim 1 , wherein the protrusion extends the length of the seal.3. The pitot-static test adapter of claim 1 , wherein the seal defines a communicating hole for communicating pressure from the pitot-static pressure sensing device to the pitot-static test adapter.4. The pitot-static test adapter of claim 3 , wherein the seal further defines a hemispherical protrusion surrounding the communicating hole to further enhance isolation from ambient pressure conditions.5. A pitot-static test adapter comprising:a mating body and a seal configured and adapted for isolating at least one port of a pitot-static pressure sensing device from ambient pressure conditions; andone groove adapted to cooperate with one protrusion, one of the groove and the protrusion formed by a surface of the mating body, the other of the groove and the protrusion defined by a surface of the seal, wherein the mating body and the seal are connected to one another without the need for adhesive when the groove is mated with the protrusion.6. The pitot-static test adapter of claim 5 , wherein the one of the groove and the protrusion defined by a surface of the seal extends the length of the seal.7. The pitot-static test adapter of claim 5 , wherein the seal defines a communicating hole for communicating pressure ...

EXHAUST GAS MEASURING INFORMATION PROCESSING APPARATUS, EXHAUST GAS MEASURING SYSTEM, AND RECORDING MEDIUM

An exhaust gas measuring information processing apparatus of the present invention detects troubles etc. of a flow sensor during a flow rate measurement and performs predetermined processing relevant to maintenance and check of the flow sensor. The exhaust gas measuring information processing apparatus includes a reception circuit that receives a flow rate measurement signal indicating a flow rate measurement value of exhaust gas flowing through an exhaust gas tube of an internal combustion engine and an operational state signal indicating an operational state of the internal combustion engine, and a processing executing circuit that executes predetermined processing relevant to maintenance and check of the flow sensor that outputs the flow rate measurement signal when a predetermined correlation is not satisfied between an index value for the operational state indicated by the operational state signal and the flow rate measurement value indicated by the flow rate measurement signal. 1. An exhaust gas measuring system comprising:an exhaust gas measuring information processing apparatus;a flow sensor that measures a flow rate of exhaust gas flowing through an exhaust gas tube of an internal combustion engine and outputs a flow rate measurement signal indicating a measurement value of the flow rate; andan operational state detecting sensor that detects an operational state of the internal combustion engine and outputs an operational state signal indicating the detected operational state, whereinthe exhaust gas measuring information processing apparatus includes:a reception circuit that receives the flow rate measurement signal indicating the flow rate measurement value of the exhaust gas flowing through the exhaust gas tube of the internal combustion engine and the operational state signal indicating the operational state of the internal combustion engine; anda processing executing circuit that executes predetermined processing relevant to maintenance and check of the ...

METHOD OF FORMING AN ICE RESISTANT PITOT TUBE

A method of forming a pitot tube includes forming a substantially cylindrical body portion including an outer surface, a tip portion having an inlet opening and an interior defining a flow passage, radially tapering the outer surface from the body portion toward the inlet opening, and disposing at least one electrical coil including one or more coil wraps along the flow passage of the pitot tube. 1. A method of forming a pitot tube comprising:forming a substantially cylindrical body portion including an outer surface, a tip portion having an inlet opening, and an interior defining a flow passage;radially tapering the outer surface from the body portion toward the inlet opening; anddisposing at least one electrical coil including one or more coil wraps along the flow passage of the pitot tube.2. The method of claim 1 , wherein the radially tapered outer surface has a concave curve.3. The method of claim 1 , wherein disposing the at least one electrical coil includes arranging the one or more coil wraps to establish a variable watt density along the flow path.4. The method of claim 1 , further comprising: positioning at least one bulkhead along the flow passage to limit travel of particles ingested into the pitot tube.5. The method of claim 4 , further comprising: arranging at least one of the one or more coil wraps along the flow path between the inlet opening and the at least one bulkhead.6. The method of claim 4 , further comprising: arranging at least one of the one or more coil wraps along the flow path downstream of the at least one bulkhead.7. The method of claim 6 , wherein arranging the at least one of the one or more coil wraps includes positioning a plurality of coils to establish a variable watt density along the flow path.8. The method of claim 4 , further comprising: forming at least one drain opening in the substantially cylindrical body portion fluidically connecting the flow path and the outer surface.9. The method of claim 8 , wherein forming the at ...

ADDITIVELY MANUFACTURED HEATERS FOR AIR DATA PROBES HAVING A HEATER LAYER AND A DIELECTRIC LAYER ON THE AIR DATA PROBE BODY

An air data probe includes an air data probe body and an additively manufactured heater on the air data probe body, the heater including a first heater layer and a first dielectric layer on the first heater layer. The first dielectric layer makes up an exterior surface of the heater. 1. An air data probe comprising:an air data probe body; and a first heater layer on the air data probe body; and', 'a first dielectric layer on the first heater layer;', 'wherein the air data probe body is non-metallic., 'an additively manufactured heater on the air data probe body, the heater comprising2. (canceled)3. The air data probe of claim 1 , wherein the first dielectric layer is made of xylene resin claim 1 , alumina claim 1 , PEKK claim 1 , or aluminum nitride.4. The air data probe of claim 1 , wherein the heater layer is made of one or more materials selected from the group consisting of: silver claim 1 , copper claim 1 , PTC claim 1 , ruthenium claim 1 , silver-palladium claim 1 , platinum claim 1 , and tungsten.5. The air data probe of claim 1 , wherein the heater layer is made of a first material and a second material.6. The air data probe of claim 1 , wherein the heater further comprises:a second heater layer on the first dielectric layer such that the first dielectric layer is between the first heater layer and the second heater layer; anda second dielectric layer on the second heater layer.7. The air data probe of claim 6 , wherein the second dielectric layer makes up an exterior surface of the heater.8. An air data probe comprising:an air data probe body; and a first dielectric layer on the air data probe body;', 'a first heater layer on the first dielectric layer; and', 'a second dielectric layer on the first heater layer such that the first heater layer is between the first dielectric layer and the second dielectric layer;, 'an additively manufactured heater on the air data probe body, the heater comprisingwherein the air data probe body is metallic.9. The air data ...

Systems and methods for additive manufacturing for air data probes

Systems and methods for additive manufacturing for air data probes are provided. In at least one embodiment a probe comprises a support structure comprising one or more ports for receiving one or more fluids, the support structure comprising an endoskeleton mandrel having an opening for receiving a fluid; and a heating cable encircling an external surface of the endoskeleton mandrel. The probe also comprises an additive coating fused to the external surface of the endoskeleton mandrel and an external surface of the heating cable; and an internal assembly inside the support structure for carrying pressures from the one or more ports to one or more instruments that respond to the one or more fluids to provide a measurement.

PITOT TUBE VELOCIMETER SYSTEM

An apparatus and method for sensing position according to flow velocity includes at least two pitot tubes each defining a central axis is along mutually orthogonal axes. Each of at least two pressure sensors is positioned in fluid communication with a corresponding one of the at least two pitot tubes. A controller receives outputs from the at least two pressure sensors and analyzes to determine at least one of an angular and translational velocity according to the outputs. A distance traveled is then determined according to the at least one of an angular and translational velocity. Corresponding methods of use and calibration are also disclosed. 1. An apparatus for determining position according to flow velocity of a fluid , the apparatus comprising:at least two pitot tubes each defining a central axis, including at least one pitot tube oriented with the central axis thereof parallel to a first direction, at least one pitot tube oriented having the central axis thereof having an extent along a second direction orthogonal to the first direction; andat least two pressure sensors each positioned in fluid communication with one of the at least two pitot tubes2. The method of claim 1 , further comprising: receive outputs from the at least two pressure sensors,', 'determine a velocity according to the outputs thereof, and', 'determine a distance traveled based on the velocity., 'a controller operably coupled to the at least two pressure sensors, the controller being programmed to'}3. The apparatus of claim 1 , wherein the at least two pitot tubes are each positioned within a shaped surface and have corresponding distal ends in fluid communication with space exterior to the shaped surface.4. The apparatus of claim 3 , wherein the shaped surface defines at least one vent.5. The apparatus of claim 4 , wherein the at least two pressure sensors are differential pressure sensors each positioned to measure a difference between a pressure within the shaped surface and a pressure ...

Metering Device

According to the invention a device for precise metering of a fluid volumetric flow of low flow rates down to zero volumetric flow of a liquid component in a mixer feed line for mixing plastics is provided, the device having a fluid supply tank that is in fluid line communication with the mixer feed line via a pump and through a volumetric flow meter, is characterized in that a fluid return line, which leads back into the tank through a second volumetric flow meter and which branches off from one of the fluid lines between the tank and the mixer feed line downstream of the first volumetric flow meter through a distributor apparatus that has one input and two outputs, namely one into the return line and one into the mixer feed line, and that distributes an input volumetric flow into the two outputs, and specifically in an adjustable fluid rate ratio. 2321226. The device according to claim 1 , further comprising a signal processing apparatus that calculates a difference signal () from signals of the two volumetric flow meters ( claim 1 , ).318321226. The device according to or claim 1 , further comprising a control apparatus claim 1 , which controls or regulates the flow-rate ratio at the distributor apparatus () claim 1 , depending on a difference signal () from signals of the two volumetric flow meters ( claim 1 , ).418. The device according to or claim 1 , wherein the distributor apparatus () has a distributor ball valve and/or a slide valve and/or a pilot valve.5184042444242. The device according to or claim 1 , wherein the distributor apparatus () has a line branching () claim 1 , which leads to two metering ball valves () each having an adjustable output flow rate claim 1 , and a coupling apparatus () claim 1 , at which the flow rate ratio can be adjusted claim 1 , in that the coupling apparatus reduces the output flow-rate at one of the two metering ball valves () claim 1 , by the same amount by which it increases the output flow rate at the other of the two ...

PRINTED MULTIFUNCTIONAL SKIN FOR AERODYNAMIC STRUCTURES, AND ASSOCIATED SYSTEMS AND METHODS

Systems and methods for printed multifunctional skin are disclosed herein. In one embodiment, a method of manufacturing a smart device includes providing a structure, placing a sensor over an outer surface of the structure, and placing conductive traces over the outer surface of the structure. The conductive traces electrically connect the sensor to electronics. 125-. (canceled)26. A method of instrumenting an aerodynamic structure , comprising:forming a printed multifunctional skin (pSKIN) by printing at least a sensor, an actuator and a conductive trace over a foil by additive manufacturing;providing the aerodynamic structure having a first surface exposed to an outside environment; andadhering the pSKIN to the first surface of the aerodynamic structure.27. The method of claim 26 , further comprising:applying a protective cover over the pSKIN.28. The method of claim 27 , wherein the protective cover comprises:an adhesive having a first side facing the pSKIN and a second side facing away from the pSKIN; anda protective foil in contact with the second side of the adhesive.29. The method of claim 26 , wherein the first surface of the aerodynamic structure has a hole claim 26 , the method further comprising:sealing the hole with the pSKIN.30. The method of claim 26 , wherein the pSKIN is conformable to the first surface.31. The method of claim 26 , wherein the aerodynamic structure is an element of a pump claim 26 , a wind turbine claim 26 , an air fan claim 26 , a submarine claim 26 , a ship claim 26 , an engine claim 26 , a prosthetics claim 26 , or an aircraft.32. The method of claim 26 , wherein the aerodynamic structure is an unmanned vehicle.33. The method of claim 26 , wherein the sensor is an electric field sensors claim 26 , an antenna claim 26 , or a magnetic field sensor.34. A method of instrumenting an aerodynamic structure claim 26 , comprising:printing the aerodynamic structure by additive manufacturing;forming a first opening in the aerodynamic ...

CUSTOMIZABLE AVERAGING PITOT TUBE PROBE AND PROCESS VARIABLE TRANSMITTER

A customizable length averaging pitot tube (APT) probe for insertion into a confined conduit, such as a process pipe, is disclosed. The APT probe includes a probe portion, configured to be inserted into the confined conduit, which includes longitudinally extending upstream, downstream and middle surfaces to form first and second fluid carrying plenums within the APT probe portion. A plurality of longitudinally arranged openings are disposed along the length of the upstream surface with each opening in fluid communication with the first fluid carrying plenum. A plurality of longitudinally arranged openings are disposed along the length of the downstream surface with each opening in fluid communication with the second fluid carrying plenum. A cap is affixed to an end of the APT probe portion to isolate the first and second fluid carrying plenums at the end of the APT probe portion. An elongated body is coupled to the APT probe portion and provides fluid passageways fluidically coupled to the first and second plenums for coupling process pressures from the first and second plenums to a pressure sensor. 1. A method of customizing an averaging pitot tube (APT) probe for insertion into a particular confined conduit , the method comprising:providing an APT probe portion having a plurality of cutting regions which define adjustable lengths of the APT probe portion, the APT probe portion comprising a longitudinally extending upstream surface and a longitudinally extending downstream surface which form first and second fluid carrying plenums within the APT probe portion, the APT probe portion further comprising a plurality of longitudinally arranged openings in the upstream surface disposed along a length of the upstream surface with each opening in fluid communication with the first fluid carrying plenum, and a plurality of longitudinally arranged openings in the downstream surface disposed along a length of the downstream surface with each opening in fluid communication ...

INFRASTRUCTURE MONITORING DEVICES, SYSTEMS, AND METHODS

An infrastructure monitoring assembly includes a fire hydrant; a pipe connected in fluid communication with the fire hydrant, a fluid at least partially filling the pipe; a sensor positioned in the fluid, the sensor configured to measure a parameter of the fluid; and a processor connected in communication with the sensor, the processor configured to receive a signal from the sensor. 1. An infrastructure monitoring assembly comprising:a fire hydrant;a pipe connected in fluid communication with the fire hydrant, a fluid at least partially filling the pipe;a sensor positioned contacting the fluid, the sensor configured to measure a parameter of the fluid; anda processor connected in communication with the sensor, the processor configured to receive a signal from the sensor.2. The infrastructure monitoring assembly of claim 1 , wherein:the processor is positioned within a monitor housing;the monitor housing is coupled to the fire hydrant; andthe sensor is positioned external to the monitor housing.3. The infrastructure monitoring assembly of claim 1 , wherein the processor is connected in electrical communication with the sensor.4. The infrastructure monitoring assembly of claim 1 , wherein the processor is connected in wireless communication with the sensor.5. The infrastructure monitoring assembly of claim 1 , wherein the sensor is positioned within the pipe.6. The infrastructure monitoring assembly of claim 5 , wherein the pipe is a stand pipe.7. The infrastructure monitoring assembly of claim 1 , wherein the sensor is positioned within a base of the fire hydrant.8. The infrastructure monitoring assembly of claim 1 , wherein the fluid is water.9. The infrastructure monitoring assembly of claim 1 , wherein the sensor is a pressure sensor claim 1 , and wherein the sensor monitors a pressure of the fluid.10. The infrastructure monitoring assembly of claim 1 , further comprising an antenna connected in electrical communication with the processor claim 1 , the antenna ...

Inductive heating of air data probes

An air data probe includes a faceplate, a body connected to the faceplate, and a heating system comprising a coil, the coil being connected to the faceplate. The coil generates an electromagnetic field that couples with the body to heat the body.

Sensor Block, Pipe, and Production Method

The embodiments of the present invention relates to a sensor block for measuring fluid flow or pressure in a tube. The sensor block comprises a sensor and a housing. The housing has a resilient clamp part which is shaped such that it can be plugged onto a tube along the radial direction and is part of the tube in the plugged state. The invention also relates to a tube, which is produced by means of MID technology. The tube comprises conductor paths and a sensor, which is firmly connected to the tube. The tube further comprises two elongated grooves for releasable attachment of a sensor block. The embodiments of the present invention further relates to a production method, in which both a sensor block and a tube are manufactured with an identical mask set, injection molding tool or control program component. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. A sensor block for measuring fluid flow or pressure in a tube , the sensor block comprising:a sensor; anda housing with a resilient clamp part for the sensor block to be removably mounted on the tube;wherein the resilient clamp part is shaped such that the resilient clamp part can be plugged onto the tube along the radial direction and the resilient clamp part radially covers part of a wall of the tube.17. The sensor block of claim 16 , wherein the resilient clamp part has a longitudinal projection claim 16 , which extends parallel to a longitudinal axis of the tube when the sensor block is mounted on the tube.18. The sensor block of claim 16 , wherein the sensor is a differential pressure sensor and the sensor block has two openings facing the tube; each opening is pneumatically connected to a pneumatic connection of the differential pressure sensor.19. The sensor block of claim 16 , wherein the sensor is a differential pressure sensor;wherein the housing ...

Pitot Tube Stabilizing Arrangements

A pitot tube assembly for a centrifugal pump includes an extension arm having a tubular body with opposing ends, at least one pickup tube secured to one of the opposing ends of the extension arm, a terminal portion positioned at the other end of the extension arm and a tapered fitting provided toward the end of the extension arm opposite to the end of the extension arm to which the pickup tube is secured, where the tapered fitting provides a frustum surface for registration with a frustoconically-shaped bore of a portion of the pump to provide axial, radial and torsional stability to the pitot tube assembly during pump operation. 1. A pitot tube assembly for a centrifugal pump , comprising:an extension arm having a tubular body with opposing ends and a central axis extending between the opposing ends;at least one pickup tube secured to one of said opposing ends of said extension arm;a terminal portion positioned at the end of the extension arm opposite the end of the extension arm to which the at least one pickup tube is secured; anda tapered fitting provided toward the end of the extension arm opposite to the end of the extension arm to which the at least one pickup tube is secured, the tapered fitting being positioned between the opposing ends of the extension arm.2. The pitot tube assembly of claim 1 , wherein the tapered fitting has an outer surface defining a frustum claim 1 , the base plane of the frustum being oriented toward the end of the extension arm to which the at least one pickup tube is secured and the vertex plane of which is oriented toward the terminal portion of the extension arm.3. The pitot tube assembly of claim 2 , wherein the outer surface of the tapered fitting defines an angle of from about two degrees to about twenty degrees as measured between a plane extending along the surface of the frustum and a plane extending from the circumference of the base of the frustum parallel to the axis of the frustum and perpendicular to the plane of the ...

Process measurement probe bottoming indicator

Systems and methods are disclosed for indicating bottoming contact between an inner wall of a fluid carrying conduit and a distal tip process measurement probe. A process device, such as a fluid flow meter, has a process measurement probe configured for insertion into the fluid carrying conduit. An insertion mechanism is coupled to the process measurement probe and configured to apply force to insert the process measurement probe into the fluid carrying conduit. A bottoming indicator is configured to provide an indication of proper bottoming of the distal tip of the process measurement probe against the inner wall of the fluid carrying conduit as a function of an insertion related force or pressure.

MONITORING AND EXTENDING HEATER LIFE THROUGH POWER SUPPLY POLARITY SWITCHING

A method and system for monitoring a heating arrangement includes applying a first polarity voltage to a heater of the heating arrangement, detecting a first polarity heating leakage current, applying a second polarity voltage to the heating arrangement, detecting a second polarity heating leakage current, and determining health of the heating arrangement via the first polarity heating leakage current and the second polarity heating leakage current. 1. A method of monitoring a heating arrangement , the method comprising:applying a first polarity voltage to a heater of the heating arrangement;detecting a first polarity heating leakage current;applying a second polarity voltage to the heating arrangement;detecting a second polarity heating leakage current; anddetermining health of the heating arrangement via the first polarity heating leakage current and the second polarity heating leakage current.2. The method of claim 1 , further comprising:generating, via a polarity control circuit, a heater voltage polarity signal based on the first polarity heating leakage current and the second polarity heating leakage current; andapplying to the heater, via a polarity selection circuit and based on the heater voltage polarity signal, either the first polarity heater voltage or the second polarity heater voltage, thereby increasing useful life of the heating arrangement.3. The method of claim 2 , further comprising:measuring, via a leakage measurement circuit, the first polarity heating leakage current or the second polarity heating leakage current;storing, via a processor, the first polarity heating leakage current or the second polarity heating leakage current;retrieving, via the processor, a last measured value of the first polarity heating leakage current;retrieving, via the processor, a last measured value of the second polarity heating leakage current; andcomparing, via the processor, the last measured value of the first polarity heating leakage current with the last ...

FLOW MEASUREMENT PROBE

A flow measurement probe includes an elongate probe having an averaging pitot tube with a plurality of upstream and downstream openings arranged along a length of the elongate probe, and a thermal flow measurement sensor coupled to the elongate probe. A method of measuring fluid flow rate in a process includes calculating a flow rate of the fluid using differential pressure in upstream and downstream openings of an averaging pitot tube in an elongate probe when the differential pressure is at least a defined measurement threshold, and calculating the flow rate of the fluid with a thermal mass flow sensor coupled to the flow measurement probe when the differential pressure is less than the defined measurement threshold. 1. A flow measurement probe , comprising:an elongate probe comprising an averaging pitot tube element having a plurality of upstream and downstream openings arranged along a length of the elongate probe; anda thermal flow measurement sensor coupled to the elongate probe.2. The flow measurement probe of claim 1 , wherein the thermal flow measurement sensor is isolated from the upstream and downstream openings.3. The flow measurement probe of claim 1 , wherein the thermal flow measurement sensor comprises two thermal mass flow sensors in a single chamber.4. The flow measurement probe of claim 3 , wherein the upstream and downstream openings have directional tube drilling from upstream and downstream sides of a flow of fluid past the averaging pitot tube.5. The flow measurement probe of claim 1 , wherein the thermal flow measurement sensor comprises an array of thermal mass flow sensors disposed in the elongate tube.6. The flow measurement probe of claim 1 , wherein the averaging pitot tube element comprises distinct sections connected via tubing for pressure communication.7. The flow measurement probe of claim 1 , wherein the thermal flow measurement sensor is disposed substantially at a center of the elongate probe along a height of the elongate probe. ...

ADJUSTABLE POSITION PITOT PROBE MOUNT

The present invention includes an adjustable Pitot tube and method for using the same for operating or flight testing an aircraft comprising: a Pitot probe; a streamline tube connected to the Pitot probe; a mount on the aircraft connected to the streamline tube, wherein the streamline tube can at least one of rotate about an axis of the mount, or the streamline tube can move the Pitot probe closer to, or away from, a skin of the aircraft. 1. An adjustable Pitot tube for an aircraft comprising:a Pitot probe;a streamline tube connected to the Pitot probe;a mount on the aircraft connected to the streamline tube, wherein the streamline tube can: rotate about an axis of the mount, or the streamline tube can move the Pitot probe closer to, or away from, a skin of the aircraft.2. The Pitot tube of claim 1 , wherein the Pitot probe is a simple Pitot tube claim 1 , a static source claim 1 , or a Pitot-static tube.3. The Pitot tube of claim 1 , wherein the mount comprises a plurality of openings that permit rotation of the mount along a longitudinal axis of the streamline tube.4. The Pitot tube of claim 1 , wherein the mount comprises a generally spherical mount that permits movement of the streamline tube in at least two-dimensions.5. The Pitot tube of claim 1 , wherein the streamline tube is connected to an actuator that is capable of linearly translating the streamline tube along a longitudinal axis of the streamline tube.6. The Pitot tube of claim 1 , wherein the mount comprises a generally spherical mount that is connected to one or more actuators claim 1 , wherein each of the one or more actuators provides rotational of the spherical mount in at least one dimension.7. The Pitot tube of claim 1 , wherein the Pitot tube further comprises a heater or a coating that prevents ice formation.8. The Pitot tube of claim 1 , wherein the position of the Pitot tube in at least two dimensions is controlled by a computer that is connected to one or more actuators that rotate the ...

INFRASTRUCTURE MONITORING DEVICES, SYSTEMS, AND METHODS

An infrastructure monitoring assembly includes a nozzle cap, the nozzle cap comprising a metallic material; an antenna cover, the antenna cover attached to the nozzle cap, the antenna cover comprising a plastic material, the antenna cover defining an antenna cavity; and an antenna extending into the antenna cavity. An infrastructure monitoring assembly includes a fire hydrant, the fire hydrant defining a nozzle; a nozzle cap, the nozzle cap comprising a metallic material, the nozzle cap attached to the nozzle and sealing the nozzle; an antenna cover attached to the nozzle cap, the antenna cover comprising a plastic material, the antenna cover defining an antenna cavity; and an antenna disposed within the antenna cavity. 1. An infrastructure monitoring assembly comprising:a nozzle cap, the nozzle cap comprising a metallic material;an antenna cover attached to the nozzle cap and comprising a non-metallic material; andan antenna covered by the antenna cover.2. The infrastructure monitoring assembly of claim 1 , wherein:the nozzle cap defines a threaded bore;the threaded bore defines an axis; andthe antenna cover defines an axis that is coaxial to the axis of the thread bore.3. The infrastructure monitoring assembly of claim 1 , further comprising an enclosure cover configured to seal an enclosure disposed within the nozzle cap.4. The infrastructure monitoring assembly of claim 3 , further comprising a transmitter disposed within the enclosure.5. The infrastructure monitoring assembly of claim 4 , wherein the nozzle cap defines a hole claim 4 , and wherein the antenna is connected to the transmitter through the hole.6. The infrastructure monitoring assembly of claim 1 , wherein at least a portion of the antenna is disposed external to the nozzle cap.7. The infrastructure monitoring assembly of claim 1 , wherein:the nozzle cap defines a first end and a second end;the first end is disposed opposite from the second end; andat least a portion of the antenna cover is ...

FLOW SENSOR DEVICES AND SYSTEMS

A flow rate assembly can include a fluid flow interface portion having a front facing wall and a back facing wall. The flow interface portion can include an inlet passage within the fluid flow interface portion, an outlet passage within the fluid flow interface portion, at least one inlet aperture extending through the front facing wall of the fluid flow interface portion into the inlet passage, and at least one outlet aperture extending through the back facing wall of the fluid flow interface portion into the outlet passage. In some cases, the fluid flow interface portion includes a plug forming at least a portion of the inlet passage. 130.-. (canceled)31. A method of manufacturing a fluid flow sensor , the method comprising:providing a sensor tube;providing a sensor body;connecting the sensor tube to the sensor body such that an inlet passage of the sensor tube is fluidly connected to an inlet passage of the sensor body;inserting a float into the inlet passage of the sensor body via an aperture; andsealing the aperture to enclose the float within the inlet passage of the sensor body.32. The method of claim 31 , further comprising inserting a plug into a recess of the sensor tube.33. The method of claim 32 , further comprising forming at least a portion of the inlet passage of the sensor tube with the plug.34. The method of claim 32 , wherein the plug has a wedge-shaped profile.35. The method of claim 32 , wherein the plug is constructed as a solid part that is absent an internal channel.36. The method of claim 32 , wherein the plug comprises an internal channel that forms a portion of the inlet passage of the sensor body.37. The method of claim 32 , wherein the plug is sized such that a back side of the plug is flush with a back side of the sensor tube.38. The method of claim 32 , wherein the plug is separate from the outlet passage of the sensor tube.39. The method of claim 31 , wherein the sensor tube is formed by an injection molding.40. The method of claim 31 ...

PRINTED MULTIFUNCTIONAL SKIN FOR AERODYNAMIC STRUCTURES, AND ASSOCIATED SYSTEMS AND METHODS

Systems and methods for printed multifunctional skin are disclosed herein. In one embodiment, a method of manufacturing a smart device includes providing a structure, placing a sensor over an outer surface of the structure, and placing conductive traces over the outer surface of the structure. The conductive traces electrically connect the sensor to electronics. 1. A method of manufacturing a smart device , comprising:providing a structure;placing a sensor over an outer surface of the structure; andplacing conductive traces over the outer surface of the structure, wherein the conductive traces electrically connect the sensor to electronics.2. The method of claim 1 , further comprising:placing an actuator over the outer surface of the structure; andelectrically connecting the actuator to the electronics with the conductive traces.3. The method of claim 1 , wherein the structure is an aircraft structure.4. The method of claim 3 , wherein the aircraft structure is a first aircraft structure claim 3 , the method further comprising:attaching a second aircraft structure to the first aircraft structure, wherein the electronics is housed between the first and second aircraft structures.5. The method of claim 1 , wherein the structure is an element of a pump claim 1 , a wind turbine claim 1 , an air fan claim 1 , a submarine claim 1 , a ship claim 1 , an engine claim 1 , a prosthetics claim 1 , or a pipeline.6. The method of claim 1 , further comprising:printing the sensor by an electronics printer.7. The method of claim 2 , further comprising:printing the sensor and the actuator over a foil by an electronics printer using additive manufacturing; andadhering the foil to the outer surface of the structure.8. The method of claim 2 , wherein the sensor and the actuator are printed over the outer surface of the structure.9. The method of claim 2 , wherein the sensor and the actuator are less than 100 μm thick.10. A method of controlling an aircraft claim 2 , comprising:receiving ...

Average Pitot Tube Type Flow Meter

Average pitot-tube type flow meter according to the present invention has a total pressure tube and a static pressure tube. The total pressure tube and the static pressure tube are spaced from each other. Across the total pressure tube and the static pressure tube, a rectifying device and a connection case are installed as they are integrated into one body. The rectifying device is positioned in advance of total pressure holes and the total pressure hole and a static pressure hole are positioned inside the connection case.

Flow Sensor Rake Assembly

A flow sensor rake assembly for taking flow field measurements in flow machine, such as a compressor or turbine of gas turbine engine. Axial flow machine has rotor arranged to rotate about an axis to interact with fluid flow through the rotor in use, and static annular wall surrounding axis. Annular wall is mounted axially upstream or downstream of rotor to be washed by fluid flow in use. Flow sensor rake has elongate stem having first and second ends and plurality of probes depending therefrom at spaced locations along stem. Elongate stem is mounted to annular wall at first end and depending away from annular wall to the second end. Elongate stem is obliquely angled relative to annular wall when viewed in axial direction and second end of elongate stem is offset in circumferential direction relative to first end. Stem is slanted relative to radial direction with respect to axis. 1. A flow sensor rake assembly for taking flow field measurements in a flow machine , the flow machine comprising a rotor arranged to rotate about an axis so as to interact with a fluid flow through the rotor in use , and a static annular wall surrounding the axis , the annular wall being mounted axially upstream or downstream of the rotor so as to be washed by the fluid flow in use , wherein the flow sensor rake assembly comprises: an elongate stem having first and second ends and a plurality of probes depending therefrom at spaced locations along the stem;the elongate stem being mounted to the annular wall at a first end and depending away from the annular wall to the second end; andthe elongate stem being obliquely angled relative to the annular wall when viewed in the axial direction and the second end of the elongate stem is offset in a circumferential direction relative to the first end.2. A flow sensor rake assembly according to claim 1 , the elongate stem being obliquely angled relative to the annular wall and/or its surface normal vector at the first end.3. A flow sensor rake ...

DIFFERENTIAL PRESSURE SENSOR, AND FILTRATION DEVICE USED THEREWITH

A spool, including a substantially cylindrical flange portion and a substantially cylindrical front end portion which is thinner than the flange portion and whose center axis is substantially coincident with the center axis of the flange portion, is provided in a manner capable of slidingly moving in a cavity formed in a casing. The flange portion is inserted in a first cavity which has a center axis substantially coincident with the center axis of the casing and which has an inner diameter that is substantially the same as the diameter of the flange portion in length. The front end portion is inserted in a second cavity which is formed with its center axis being substantially coincident with the center axis of the casing, and which has an inner diameter greater than the diameter of the front end portion and less than the inner diameter of the first cavity in length. The rotation limiting portion, which has a rod-like shape thinner than the front end portion and which is provided along the front end portion in a manner contacting the side surface of the front end portion, is inserted in a groove portion formed on the side face of the second cavity. When the flange portion slidingly moves along the first cavity, the rotation limiting portion slidingly moves along the groove portion. 1. A differential pressure sensor comprising:a spool including a flange portion having a substantially cylindrical shape, and a front end portion having a substantially cylindrical shape, a center axis of the front end section being substantially coincident with a center axis of the flange portion, and the front end portion being thinner than the flange portion;a rotation limiting portion having a rod shape thinner than the front end portion, the limiting portion being positioned along the front end portion in a manner contacting a side surface of the front end portion;a casing having a substantially cylindrical shape and including a cavity formed therein, the spool and the rotation ...

Pitot tube designs for compressible and incompressible fluid flow with viscosity and turbulence

This invention presents a Pitot tube design and methodology for determining the flow characteristics of fluids in subsonic and supersonic flow, including the effects of viscosity and turbulence. A new methodology, the Two-Fluid Theory, is developed which treats a real fluid as being composed of two ideal fluids: an inviscid fluid and a Poiseuille fluid. The resulting expression for flow velocity is applicable to a real fluid of any viscosity and to pipes of any L/D ratios, including entrance effects. 1. this invention provides for two Pitot tube designs: one for incompressible , subsonic fluid flow; the other for compressible , supersonic fluid flow; that the designs are comprised of hollow tubes of length 10 cm and internal diameter 0.5 cm , opened at one end to the flow field; connected to pressure measuring devices at the opposite ends of the devices to measure total pressures; surrounded by annuli of 0.25 cm differential radii , sealed at both ends and connected to pressure measuring device to measure static pressures; small bore holes are positioned around the circumferences of the annuli and 1 cm from the flow entrances in accordance with a new theory , the Two-Fluid Theory , developed for this work , to ensure that the viscous component of the flow is fully established; that the device used for supersonic flow is insulated to fulfill adiabatic conditions , its annulus abbreviated to minimize heat loss; and temperature measuring devices can be added to ensure that adiabatic conditions are met , which are not required for the device used for incompressible fluid flow since isothermal conditions are satisfactory , rendering Pitot tubes for such applications much simpler to fabricate , operate and maintain.21. the devices of claim () , made of stainless steel , nickel alloy , titanium or other metal or material suitable for the flow field conditions , are supported by rigid frames to the surfaces of aircraft , walls of pipes , or other structures within a flow ...

Oxidation furnace

An oxidation furnace for the oxidative treatment of fibers having a housing which is gas-tight, apart from passage areas for the fibers, and a process chamber located in the interior of the housing. A hot working atmosphere can be generated by an atmosphere-generating device, can be blown into the process chamber and flows through the process chamber in processing conditions in a main direction of flow. Deflecting rollers guide the fibers through the process chamber in a serpentine manner in such a way that the fibers lie next to one another as a fiber carpet ( 22 a ), wherein the fiber carpet spans a plane between opposite deflecting rollers. A flow measuring system is provided, by means of which a flow profile of the working atmosphere in processing conditions can be generated, and which comprises at least one sensor system for determining the speed of flow, the sensor system being arranged in a sensor region between two adjacent fiber carpets.

SYSTEMS, METHODS, AND DEVICES FOR FLUID DATA SENSING

A fluid sensing device includes an outer body, an inner body coupled to the outer body by one or more inner body support struts and extending at least partially out from the outer body, and an aft body disposed at least partially within the outer body at a location aft of the inner body, the aft body being coupled to the outer body by one or more aft body support struts. The inner body includes a hollow interior for housing one or more inner body sensors, and the aft body houses one or more aft body sensors. The fluid sensing device can measure one or more parameters of fluid flow at high angularity, such as total temperature and total pressure, locally and simultaneously, allowing additional fluid parameters, such as local entropy, to be calculated. 1. A fluid sensing device , comprising:an outer body having a fore side, an aft side, and an interior space, the outer body including a fluid inlet disposed at the fore side;an inner body extending at least partially out of the fluid inlet of the outer body along a longitudinal axis;an aft body disposed at least partially within the outer body at a location aft of the inner body; andone or more vents disposed aft of the fluid inlet to allow passage of fluid through the fluid sensing device,wherein the inner body is configured to induce the Coanda effect in at least a portion of a fluid contacting the inner body at an angle transverse to a longitudinal axis of the inner body.2. The fluid sensing device of claim 1 , wherein the aft body includes an opening oriented toward the fore side of the outer body claim 1 , and wherein the aft body houses one or more aft body sensors.3. The fluid sensing device of claim 1 , wherein the inner body includes a hollow interior housing one or more inner body sensors.4. The fluid sensing device of claim 3 , wherein the one or more inner body sensors include one or more temperature sensor claim 3 , rate gyro claim 3 , GPS unit claim 3 , accelerometer claim 3 , radar device claim 3 , ...

Apparatus for measurement of ducted air

Apparatus and methods for measurement of airflow in a duct are described. The apparatus combines a Pitot tube, sensing apparatus, control apparatus, a display, control switches and carry apparatus arranged into a unitary structure.

METHOD FOR INTERNAL COMBUSTION ENGINE EXHAUST FLOW MEASUREMENT CALIBRATION AND OPERATION

A calibration method for a flow measuring device used with a vehicle exhaust analysis system includes the flow measuring device being connected with the vehicle exhaust system wherein exhaust gases are directed through the flow measuring device. A portable flow calibration device is connected in a manner that exhaust gases of the vehicle exhaust system are directed through the portable flow calibration device. The vehicle is operated so that exhaust gas flows through the flow measuring device and the flow calibration device. The flow measuring device is calibrated with the portable flow calibration device. The flow measuring device includes a Pitot tube assembly in a flow tube wherein gas flowing through the flow tube passes the Pitot tube assembly. The Pitot tube assembly includes a sensing tube and at least one pressure sensing port connected with the sensing tube. The sensing tube includes a plurality of sensing openings that are positioned at different portions of gas flowing through the flow tube. 1. A calibration method for a flow measuring device used with a vehicle exhaust analysis system , said method comprising:said flow measuring device being connected with the vehicle exhaust system wherein exhaust gases are directed through said flow measuring device;connecting a portable flow calibration device wherein exhaust gases of the vehicle exhaust system are directed through the portable flow calibration device;operating the vehicle wherein exhaust gas flows through said flow measuring device and said flow calibration device;calibrating the flow measuring device with the portable flow calibration device.2. A flow measuring device comprising:a Pitot tube assembly in a flow tube wherein gas flowing through said flow tube passes said pitot tube assembly; andsaid Pitot tube assembly comprising a sensing tube and at least one pressure sensing port connected with said sensing tube, said sensing tube comprising a plurality of sensing openings that are positioned at ...

Hybrid material aircraft sensors and method of manufacturing

An air data probe includes a probe body including a probe wall. The probe body is formed from a first material by direct energy metal deposition. An insert is positioned in the probe wall. The insert is formed from a second material different from the first material. The insert is encapsulated in the probe wall via the direct energy metal deposition. A method of forming an air data probe includes forming one or more thermally conductive inserts, and encapsulating the one or more inserts into a wall of an air data probe via direct energy metal deposition. The air data probe is formed from a first material and the one or more inserts are formed from a second material different from the first material.

Probe tip for air data probe

A probe assembly includes a heat source; and a probe tip configured to enhance conduction of heat provided by the heat source into a front end tip of the probe. The probe tip includes: a first region having high thermal conductivity in at least a z-direction, wherein the z-direction is parallel to an axis along which the probe tip is extended; and at least one additional region having thermal characteristics different from the first region.

AIR DATA PROBE WITH IMPROVED PERFORMANCE AT ANGLE OF ATTACK OPERATION

An air data probe has a pitot tube with a tap at a forward end that defines an inner flow path. The inner flow path decreases in the cross-sectional area until reaching a throat. The inner flow path has cross-sections that are generally cylindrical and also has sections of removed material. Other embodiment have unique shapes. 1. An air data probe comprising:a pitot tube having a tap with a forward end, and defining an inner flow path, the inner flow path decreasing in cross-sectional area until reaching a throat; andsaid inner flow path having cross-sections which are generally cylindrical, and also having sections of removed material.2. The air data probe as set forth in claim 1 , wherein said sections of removed material include at least one bleed hole extending from an outer periphery of said pitot tube to communicate air into said inner flow path.3. The air data probe as set forth in claim 2 , wherein an inlet of said at least one bleed hole is upstream of said throat.4. The air data probe as set forth in claim 3 , wherein there are a plurality of said at least one bleed hole.5. The air data probe as set forth in claim 1 , wherein said removed material includes at least one slot claim 1 , with said generally cylindrical sections circumferentially spaced between said slots.6. The air data probe as set forth in claim 5 , wherein said at least one slot has a relatively circumferentially thin portion adjacent the forward end of said pitot tube and relatively circumferentially enlarged portions downstream of said relatively thinner portion.7. The air data probe as set forth in claim 6 , wherein there are a plurality of said at least one slots.8. The air data probe as set forth in claim 6 , wherein said at least one slot ends at said throat.9. The air data probe as set forth in claim 1 , wherein said removed portions end at said throat.10. The air data probe as set forth in claim 1 , wherein said pitot tube is provided with a relatively long nose portion of ...

Ceramic probe head for an air data probe

A probe head for an air data probe includes a ceramic body and a heater embedded within the ceramic body.

IN-VEHICLE EXHAUST GAS ANALYSIS SYSTEM, INSPECTION SYSTEM FOR IN-VEHICLE EXHAUST GAS ANALYSIS SYSTEM, INSPECTION METHOD FOR IN-VEHICLE EXHAUST GAS ANALYSIS SYSTEM, AND INSPECTION PROGRAM

An in-vehicle exhaust gas analysis system, which is provided with a flowmeter, and an exhaust gas analyzer to analyze a concentration of a measurement target component contained in exhaust gas, includes a standard gas supply mechanism to supply a standard gas containing a predetermined component to the flowmeter and the exhaust gas analyzer. The system is configured to include a detected mass calculation section to calculate a detected mass of a predetermined component by using a flow rate obtained by the flowmeter and a concentration of the predetermined component obtained by the exhaust gas analyzer, a supply mass acquisition section to acquire a supply mass of the predetermined component supplied from the standard gas supply mechanism to the flowmeter and the exhaust gas analyzer, and a mass comparison section to compare a detected mass calculated by the mass calculation section and a supply mass acquired by the supply mass acquisition section. 1. An inspection system for inspecting an in-vehicle exhaust gas analysis system , the in-vehicle exhaust gas analysis system comprising a flowmeter to measure a flow rate of exhaust gas discharged from a vehicle , and an exhaust gas analyzer to analyze a concentration of a measurement target component contained in the exhaust gas , and the in-vehicle exhaust gas analysis system being configured to be supplied with a standard gas containing a predetermined component , the inspection system comprising:a detected mass calculation section to calculate a detected mass of the predetermined component by using a flow rate obtained by the flowmeter and a concentration of the predetermined component obtained by the exhaust gas analyzer;a supply mass acquisition section to acquire a supply mass of the predetermined component supplied to the flowmeter and the exhaust gas analyzer; anda mass comparison section to compare the detected mass calculated by the detected mass calculation section and the supply mass acquired by the supply ...

Air Data System

An air data system including a housing, a bore, a dynamic port, a static port, a gas permeable membrane, and a device configured to determine a pressure differential. The bore may be located within the housing and may extend from an inlet for receiving air flow to an outlet. The dynamic port may be located in the bore and be configured and positioned to receive air passing through the bore. The static port may be configured and positioned to receive unmoving or ambient air. The device may determine the pressure differential between dynamic air received at the dynamic port and static air received at the static port. And the membrane may span the dynamic port, the static port, or both and is configured to direct moisture away from the port which it spans. 1. An air data system , comprising:a housing;a bore located within the housing and extending from an inlet for receiving air flow to an outlet;a dynamic port located in the bore and configured and positioned to receive air passing through the bore;a static port configured and positioned to receive static air;a device configured to determine a pressure differential between dynamic air received at the dynamic port and static air received at the static port; anda gas permeable membrane spanning at least one of the dynamic port or the static port and configured to direct moisture away from the at least one port it spans.2. The air data system of in which the gas permeable membrane is Gore-Tex polytetrafluoroethylene material.3. The air data system of further comprising a throat region in the bore between the inlet and the outlet claim 1 , the dynamic port being located in the throat region.4. The air data system of in which the throat region has a hydrophobic surface.5. The air data system of in which the hydrophobic surface includes a coating of one of Aculon™ Superhydrophobic claim 4 , Rust-Oleum™ NeverWet™ claim 4 , Lotus Leaf™ HydroFoe™ claim 4 , Ultra Ever-Dry™ claim 4 , or Insurftec™ Liquipel™.6. The air data ...

FLOWMETER PRIMARY ELEMENT WITH SENSORS

A process variable transmitter is configured as a flowmeter for measuring flow of a process fluid through a conduit. The transmitter includes a pitot tube extending into the conduit which creates a differential pressure in the process fluid due to flow of the process fluid. An upstream process variable sensor is mounted on the pitot tube and coupled to the flow of process fluid to sense an upstream process variable of the process fluid. A downstream process variable sensor is mounted on the pitot tube downstream of the upstream process variable sensor and coupled to the flow of process fluid to sense a downstream process variable of the process fluid. Measurement circuitry determines the flow of the process fluid based upon the upstream process variable and the downstream process variable. 1. A flowmeter for measuring flow of a process fluid through a conduit , comprising:a pitot tube extending into the conduit which creates a differential pressure in the process fluid due to flow of the process fluid;an upstream process variable sensor mounted on the pitot tube and exposed to a pressure generated by the flow of process fluid configured to sense an upstream process variable of the process fluid;a downstream process variable sensor mounted downstream of the upstream process variable sensor mounted on the pitot tube and exposed to a pressure generated by the flow of process fluid configured to sense a downstream process variable of the process fluid; andmeasurement circuitry configured to determine the flow of the process fluid based upon the upstream process variable and the downstream process variable.2. The flowmeter of wherein the upstream and downstream process variable sensors comprise pressure sensors.3. The flowmeter of including a differential pressure sensor configured to sense a differential pressure created by the pitot tube.4. The flowmeter of wherein the measurement circuitry provides an output based upon a difference between the measured differential ...

PITOT TUBE TRAVERSE ASSEMBLY

A pressure measurement system for measuring pressure in a conduit has a bluff body extending into the conduit. The bluff body has an upstream opening and a downstream opening. An upstream pitot tube is slidably engaged within the bluff body and has an open end positioned in the upstream opening. A downstream pitot tube is slidably engaged within the bluff body and has an open end positioned in the downstream opening. A differential pressure sensor is fluidly coupled to the upstream pitot tube and the downstream pitot tube to measure a pressure difference between the upstream pitot tube and the downstream pitot tube. 1. A pressure measurement system for measuring pressure in a conduit , comprising:a bluff body extending into the conduit and having an upstream opening and a downstream opening;an upstream pitot tube slidably engaged within the bluff body and having an open end positioned in the upstream opening;a downstream pitot tube slidably engaged within the bluff body and having an open end positioned in the downstream opening;a differential pressure sensor fluidly coupled to the upstream pitot tube and the downstream pitot tube to measure a pressure difference between the upstream pitot tube and the downstream pitot tube.2. The pressure measurement system of wherein the differential pressure sensor measures a first pressure difference when the upstream pitot tube and the downstream pitot tube are in a first position within the bluff body and wherein the differential pressure sensor measures a second pressure difference when the upstream pitot tube and the downstream pitot tube are in a second position.3. The pressure measurement system of wherein the upstream opening and the downstream opening are both slots.4. The pressure measurement system of wherein at least one of the upstream pitot tube and the downstream pitot tube further comprises exterior markings that indicate the position of at least one of the upstream pitot tube and the downstream pitot tube within ...

VARIABLE LINE SIZE AVERAGING PITOT TUBE

Systems, apparatus and methods are disclosed for coupling an averaging picot tube (APT) primary element to a process pipe. A mounting assembly mounts the APT primary element to the process pipe such that a length of the APT primary element extending into the process pipe is adjustable to accommodate different sized process pipe diameters. The mounting assembly includes a weld coupling coupled to the process pipe over an opening in the process pipe and having the APT primary element extending therethrough into the process pipe. An extension pipe nipple is connected to the weld coupling and has the APT primary element extending therethrough such that a transition between a neck section and a sensor section of the APT primary element is positioned inside the extension pipe nipple. A union component, a ferrule, and a cap keep the APT primary element in the mounted position and form a process seal. 1. A process variable monitoring system for measuring a process variable indicative of a flow rate of a process fluid in a range of different sized process pipes , the system comprising:a process variable transmitter;a pressure sensor in the process variable transmitter;an averaging pitot tube (APT) primary element having a distal region including one or more slots, the APT primary element being extendable into the process pipe to couple process pressures of the process fluid to the pressure sensor such that the pressure sensor provides as an output pressure measurement indicative of the flow rate of process fluid in the process pipe, wherein the distal region including the one or more slots is sized such that for larger diameter process pipes the one or more slots span a smaller percentage of the pipe diameter than for smaller diameter pipes; anda mounting assembly configured to mount the APT primary element to the process pipe and provide a process seal such that a length of the APT primary element extending into the process pipe is adjustable for different sized process ...

SYSTEM AND METHOD FOR PITOT TUBE BLOCKAGE DETECTION

A method of detecting blockage of a pitot tube includes measuring a pitot tube temperature via one or more temperature sensors located inside a pitot tube, measuring an outside ambient air temperature, comparing the measured pitot tube temperature to a minimum pitot tube temperature threshold for the measured outside ambient air temperature, and determining the pitot tube has a blockage condition when the measured pitot tube temperature is below the minimum pitot tube temperature threshold. 1. A method of detecting blockage of a pitot tube , comprising:measuring a pitot tube temperature via one or more temperature sensors disposed inside a pitot tube;measuring an outside ambient air temperature;comparing the measured pitot tube temperature to a minimum pitot tube temperature threshold for the measured outside ambient air temperature; anddetermining the pitot tube has a blockage condition when the measured pitot tube temperature is below the minimum pitot tube temperature threshold.2. The method of claim 1 , further comprising:determining whether a pitot tube heater is operational; andselecting the minimum pitot tube temperature threshold based on the measured outside ambient air temperature and an operational status of the pitot tube heater.3. The method of claim 1 , further comprising alerting a flight crew regarding the blockage condition.4. The method of claim 3 , wherein the alert is a visual and/or aural alert.5. The method of claim 1 , wherein the minimum pitot tube temperature threshold is obtained from a temperature calibration database.6. The method of claim 1 , wherein measuring a pitot tube temperature comprises measuring three of more pitot tube temperatures via three or more temperature sensors located at three or more longitudinal locations of the pitot tube.7. The method of claim 6 , wherein the three or more temperature sensors are located at three or more circumferential locations of the pitot tube.8. A pitot tube system claim 6 , comprising:a pitot ...

CORROSION RESISTANT SLEEVE FOR AN AIR DATA PROBE

A corrosion resistant sleeve for an air data probe with the sleeve being cylindrical in shape with a first end and a second end, at least one circumferentially extending groove on an outside of the sleeve configured to accommodate coils of a heater, and a bore at a center of the sleeve and extending between the first end and the second end configured to provide a pneumatic pathway that allows atmospheric conditions to reach measurement equipment of the air data probe. 1. A corrosion resistant sleeve for an air data probe comprising:the sleeve being cylindrical in shape with a first end and a second end;at least one circumferentially extending groove on an outside of the sleeve configured to accommodate heater coils; anda bore at a center of the sleeve and extending between the first end and the second end configured to provide a pneumatic pathway that allows atmospheric conditions to reach measurement equipment of the air data probe.2. The corrosion resistant sleeve of claim 1 , further comprising:a tip integral with the sleeve, the tip being adjacent the first end of the sleeve with the bore extending through the tip.3. The corrosion resistant sleeve of claim 2 , wherein the sleeve and tip are one continuous component.4. The corrosion resistant sleeve of claim 2 , wherein the tip is cylindrical in shape with a larger diameter than an outer diameter of the sleeve.5. The corrosion resistant sleeve of claim of claim 4 , wherein the bore within the tip has an increasing cross-sectional area as the bore extends towards a forward end of the tip.6. The corrosion resistant sleeve of claim 1 , wherein the sleeve is constructed from nickel.7. The corrosion resistant sleeve of claim 1 , wherein the at least one groove encircles the outside of the sleeve in a spiral configuration.8. An air data probe comprising:a sleeve having a first end and a second end, the sleeve including a circumferentially extending groove on an outside surface and a bore extending along a center of the ...

Probe tip for air data probe

A probe assembly includes a heat source; and a probe tip configured to enhance conduction of heat provided by the heat source into a front end tip of the probe. The probe tip includes: a first region having high thermal conductivity in at least a z-direction, wherein the z-direction is parallel to an axis along which the probe tip is extended; and at least one additional region having thermal characteristics different from the first region.

WATER RESISTANT AIRCRAFT PITOT DEVICE

A pitot tube system having a pitot tube containing a porous hydrophobic fabric that blocks water and contaminants from reaching a pressure sensor. The distance in the pitot tube between the fabric and a front orifice of the tube is less than 2.4 times the height of the orifice, and preferably less than or equal to 0.38 times the height. The section of the tube through which the fabric extends defines an opening characterized by a minimum dimension greater than 0.15 inches, and preferably being at least 0.21 inches. The tube is a removable structure that attaches to a mount that forms a passage for communicating the pressure in the tube. That passage contains a second porous hydrophobic fabric that also blocks water and contaminants from reaching a pressure sensor. 1. A pitot device for use in an airflow , comprising:a pitot housing forming a cavity having a housing external orifice characterized by a housing external-orifice height;an air-permeable fabric extending across a section of the cavity and defining an internal chamber; anda pressure sensor configured to sense information regarding the pressure within the internal chamber;wherein the distance within the cavity between the air-permeable fabric and the housing external orifice is less than 2.4 times the housing external-orifice height.2. The pitot device of claim 1 , and further comprising:a static port; andan airspeed calculation system configured to provide an airspeed indication based on the gather information when the external orifice faces into the airflow and the static port is normal to the airflow;wherein the pressure sensor is part of a pressure measurement system configured to gather information indicative of the difference between the pressure within the internal chamber and the pressure at the static port.3. An aircraft control system claim 2 , comprising an autopilot and the pitot device of claim 2 , wherein the autopilot is configured to provide flight control information based on the airspeed ...

Pneumatic Filter

A tuned sensor system is disclosed. The tuned sensor system may receive an unsteady pressure from an external environment via a pressure inlet port. The pressure may have a first component that is substantially static and a second component that varies at a relatively high frequency. The pressure inlet port may conduct the unsteady pressure to a tuned path. The tuned path may filter the unsteady pressure, blocking the second component and communicating the first component, such as for use by a pressure sensor. The tuned sensor system may be compact and may include one or more turn in the tuned path so that the distance between the pressure inlet port and the sensor is less than the length of the tuned path. The tuned path may be entirely within the supporting structure of the tuned sensor system, easing installation, removal, and maintenance of the compact and modular system. 1. A modular tuned sensor system comprising:a main body having a tuned path in fluidic communication with a pressure inlet port;an enclosing member having a substantially planar structure defining a portion of the tuned path of the main body and substantially sealing the tuned path from leaking; andthe pressure inlet port having an aperture disposed in the enclosing member; anda sensor terminus having an aperture defined through the main body and in fluidic communication with the tuned path.2. The modular tuned sensor system according to claim 1 , wherein the tuned path comprises a channel disposed in the main body and receiving an unsteady pressure from the pressure inlet port claim 1 , andwherein the pressure inlet port is in fluidic communication with an external environment.3. The modular tuned sensor system according to claim 2 ,wherein the unsteady pressure comprises a first component with a substantially static pressure and a second component with a high frequency variable pressure, andwherein the tuned path blocks the second component and transmits the first component from the pressure ...

DIFFERENTIAL PRESSURE TYPE FLOWMETER

A flow rate measurement error is reduced by a differential pressure type flowmeter that includes: a pipe; a laminar flow element disposed within the pipe; a first absolute pressure sensor measuring an absolute pressure P of a fluid upstream of the laminar flow element; a second absolute pressure sensor measuring an absolute pressure P of the fluid downstream; a temperature sensor measuring an ambient temperature T of the absolute pressure sensors; a pressure calculation section correcting an output signal from the first absolute pressure sensor based on the temperature T to be converted into the absolute pressure P, and correcting an output signal from the second absolute pressure sensor based on the temperature T to be converted into the absolute pressure P; and a flow rate calculation section calculating a flow rate of the fluid based on the absolute pressures P and P calculated by the pressure calculation section. 1. A differential pressure type flowmeter comprising:a pipe configured to circulate a fluid to be measured;a differential pressure generation mechanism that is installed within the pipe and that is configured to generate a differential pressure between the fluid on an upstream side and the fluid on a downstream side;a first absolute pressure sensor configured to measure a first absolute pressure of the fluid upstream of the differential pressure generation mechanism;a second absolute pressure sensor configured to measure a second absolute pressure of the fluid downstream of the differential pressure generation mechanism;a temperature sensor configured to measure an ambient temperature of the first and second absolute pressure sensors;a pressure calculation section configured to correct an output signal from the first absolute pressure sensor on the basis of the temperature measured by the temperature sensor to be converted into the first absolute pressure, and configured to correct an output signal from the second absolute pressure sensor on the basis ...

DIFFERENTIAL PRESSURE TYPE FLOWMETER

Flow rate measurement errors are reduced by a differential flow type flowmeter that includes: a pipe; a laminar flow element disposed within the pipe; a differential pressure sensor that measures a differential pressure ΔP between an absolute pressure P of the fluid upstream of the laminar flow element and an absolute pressure P of the fluid downstream thereof; an absolute pressure sensor that measures the absolute pressure P and a flow rate calculation section that calculates a flow rate of the fluid on the basis of the differential pressure ΔP measured by the differential pressure sensor and the absolute pressure P measured by the absolute pressure sensor. 1. A differential pressure type flowmeter comprising:a pipe configured to circulate a fluid to be measured;a differential pressure generation mechanism that is installed within the pipe and that is configured to generate a differential pressure between the fluid on an upstream side and the fluid on a downstream side;a differential pressure sensor configured to measure a differential pressure between a first absolute pressure of the fluid upstream of the differential pressure generation mechanism and a second absolute pressure of the fluid downstream of the differential pressure generation mechanism;an absolute pressure sensor configured to measure the second absolute pressure; anda flow rate calculation section configured to calculate a flow rate of the fluid on the basis of the differential pressure measured by the differential pressure sensor and the second absolute pressure measured by the absolute pressure sensor.2. A differential pressure type flowmeter comprising:a pipe configured to circulate a fluid to be measured;a laminar flow element that is installed within the pipe and that is configured to generate a differential pressure between the fluid on an upstream side and the fluid on a downstream side;a differential pressure sensor configured to measure a differential pressure between a first absolute ...

EXHAUST GAS FLOW RATE MEASURING UNIT AND EXHAUST GAS ANALYZING APPARATUS

The present invention is an exhaust gas flow rate measuring unit that eliminates the disturbance of the flow velocity distribution of exhaust gas flowing through an attachment pipe to accurately measure an exhaust gas flow rate, and is mounted in a vehicle to measure the flow rate of exhaust gas emitted from an exhaust pipe of the vehicle. In addition, the exhaust gas flow rate measuring unit includes the attachment pipe that is connected to the exhaust pipe and forms a flow path through which the exhaust gas flows, a flowmeter that is provided in the flow path and measures the flow rate of the exhaust gas flowing through the flow path, and a straightening mechanism that is provided on the upstream side of the flowmeter in the flow path. 1. An exhaust gas flow rate measuring unit that is mounted in a vehicle and measures a flow rate of exhaust gas emitted from an exhaust pipe of the vehicle , the exhaust gas flow rate measuring unit comprising:an attachment pipe that is connected to the exhaust pipe and forms a flow path through which the exhaust gas flows;a flowmeter that is provided in the flow path and measures the flow rate of the exhaust gas flowing through the flow path; anda straightening mechanism that is provided on an upstream side of the flowmeter in the flow path.2. The exhaust gas flow rate measuring unit according to claim 1 , whereinthe attachment pipe includes a straight pipe part, andthe flowmeter and the straightening mechanism are provided in the straight pipe part.3. The exhaust gas flow rate measuring unit according to claim 2 , whereinthe attachment pipe includes a curved pipe part or a junction part on an upstream side of the straight pipe part.4. The exhaust gas flow rate measuring unit according to claim 1 , used for an on-road running test of the vehicle.5. The exhaust gas flow rate measuring unit according to claim 1 , whereinthe flowmeter is a Pitot tube flowmeter.6. The exhaust gas flow rate measuring unit according to claim 1 , ...

FLOW MEASURING APPARATUS AND INHALATION APPARATUS COMPRISING THE SAME

The present document describes a flow measuring apparatus for measuring the air flow through a section of an inhalation apparatus, and for measuring the drug delivery by inhalation using an inhalation apparatus. The flow measuring apparatus comprises a set of Pitot tubes configured for traversing entirely the lumen of the section of an inhalation apparatus. The set of Pitot tubes comprises a first and second Pitot tube which are respectively fluidly connected to a differential pressure sensor, for measuring a difference between a dynamic pressure and a static pressure within the flow measuring apparatus. 1. A flow measuring apparatus for measuring a flow through a section of an inhalation apparatus , comprising:at least one set of Pitot tubes comprising a first Pitot tube longitudinally aligned with and contacting a second Pitot tube,said set of Pitot tubes being configured for traversing entirely a lumen of said section of an inhalation apparatus;said first and second Pitot tube being respectively fluidly connected to a differential pressure sensor, for measuring a difference between a dynamic pressure and a static pressure within said flow measuring apparatus;said first Pitot tube comprising at least one opening facing a direction of said flow; andsaid second Pitot tube comprising at least one opening facing a direction opposed to said flow.2. The flow measuring apparatus of claim 1 , wherein said first and said second Pitot tubes are back to back.3. The flow measuring apparatus of claim 2 , wherein said at least one opening facing a direction of said flow and said at least one opening facing a direction opposed to said flow are substantially coplanar along the longitudinal axis of said first and said second Pitot tubes.4. The flow measuring apparatus of claim 1 , wherein said set of Pitot tubes is streamlined claim 1 , to reduce resistance of said set of Pitot tubes to said flow within said section of an inhalation apparatus.5. The flow measuring apparatus of ...

FOULING RESISTANT FLOW METERING SYSTEM

Appurtenances added to a pipe mitigate the effects of upstream valves, sluice gates or pipe elbows to condition the pipe flow for accurate flow rate detection by a reverse propeller meter. Further appurtenances allow the reverse propeller meter to be used in extreme debris situations such as weeds, vines and moss present in many canal systems. The system provides an electronic signal that indicates flow rate and accumulated flow volume, or the signal can be transmit to a central headquarters for remote gate control or canal automation. 128-. (canceled)29. A system for metering liquid flowing in a conduit comprising:a flow sensor disposed in the conduit;a debris deflection component positioned upstream of the sensor in the conduit and configured to prevent debris from fouling the sensor, anda plurality of flow conditioning components disposed in the conduit upstream of the debris deflection component,wherein the debris deflection component diverts debris around the sensor, without collecting debris in the system, the debris deflector component having a cross sectional area with respect to a flow direction that allows a velocity of a liquid flow in the conduit to be sensed by the sensor, andwherein the plurality of flow conditioning components comprise a first substantially open orifice and a second substantially open orifice, the second substantially open orifice being positioned downstream of the first orifice.30. The system of further comprising an anti-flow spin component.31. The system of claim 29 , wherein the flow sensor comprises a flow sensor selected from the group consisting of a reverse propeller meter claim 29 , pitot tubes claim 29 , and acoustic based probes claim 29 , and a magnetic sensor.32. The system of wherein the flow sensor is the reverse propeller meter.33. The system of claim 29 , wherein the flow conditioning component is configured to create a substantially uniform liquid flow profile to the sensor.34. The system of wherein the flow ...

BALLAST WATER TREATMENT MONITORING SYSTEM

A system for withdrawing samples of fluids comprises a pitot tube assembly, a flow sensor to measure a flow rate of the sample, and a pump connected to the pitot tube assembly to withdraw a sample, wherein the system is configured to match a sample flow velocity to the flow velocity sensed by a flow sensor on a pitot wand. The pitot tube assembly comprises a housing with a sample outlet and a return sample inlet, an extendable/retractable pitot wand within the housing, wherein the pitot wand includes a passage extending the length thereof to transfer a sample from a pitot tube end to a sealed compartment in the housing connected to the sample outlet; wherein the return sample inlet is connected to a passage in the housing leading to an outlet from the housing, and a flow sensor on an end of the pitot wand. 1. A system for withdrawing samples of water and other fluids , comprising: a housing with a sample outlet and a return sample inlet;', 'an extendable/retractable pitot wand within the housing, wherein the pitot wand includes a passage extending the length thereof to transfer a sample from a pitot tube end to a sealed compartment in the housing connected to the sample outlet; wherein', 'the return sample inlet is connected to a passage in the housing leading to an outlet from the housing;', 'a flow sensor on an end of the pitot wand;, 'a pitot tube assembly, comprisinga flow sensor configured to measure a flow rate of the sample; anda pump connected to the pitot tube assembly to withdraw a sample from the pitot wand, wherein the system is configured to match a sample flow velocity to the flow velocity sensed by the flow sensor on the pitot wand.2. The system of claim 1 , further comprising a pitot tube placed perpendicular to the pitot wand on the end thereof.3. The system of claim 1 , further comprising a processor to control a pump speed to control the sample flow rate.4. The system of claim 1 , further comprising a processor and one or more control valves to ...

HYBRID MATERIAL PITOT TUBE

A pitot tube includes a substantially cylindrical body portion having an interior defining a flow passage and a tip portion extending along a pitot tube axis from the body portion. The tip portion includes a disk, a tip cover and a high thermal conductive insert disposed between the disk and the tip cover and in thermal contact with both. 1. A pitot tube comprising:a substantially cylindrical body portion having an interior defining a flow passage; and a disk;', 'a tip cover; and', 'a high thermal conductive insert disposed between the disk and the tip cover and in thermal contact with both., 'a tip portion extending along a pitot tube axis from the body portion, the tip portion including2. The pitot tube of claim 1 , wherein the high thermal conductive insert is formed of graphite or carbon graphite.3. The pitot tube of claim 2 , wherein the disk and tip cover are formed of nickel.4. The pitot tube of claim 1 , wherein the disk and tip cover are friction welded to each other.5. The pitot tube of claim 4 , wherein the disk is friction welded to the body portion.6. The pitot tube of claim 1 , further comprising:one or more electrical coils comprising one or more coil wraps disposed at an interior of the body portion.7. A pitot tube comprising:a substantially cylindrical body portion having an interior defining a flow passage and having a tip extension extending therefrom; and a high thermal conductive insert surrounding the tip extension; and', 'a tip cover covering the high thermal conductive insert., 'a tip portion extending along a pitot tube axis from the body portion, the tip portion including8. The pitot tube of claim 7 , wherein the high thermal conductive insert is formed of graphite or carbon graphite.9. The pitot tube of claim 7 , wherein the body portion and the tip cover are formed of nickel.10. The pitot tube of claim 7 , further comprising:one or more electrical coils comprising one or more coil wraps disposed at an interior of the body portion. This ...

DETERMINING WELL FLUID FLOW VELOCITY BASED ON VORTEX FREQUENCY

One example of determining well fluid flow velocity based on vortex frequency is implemented using a well fluid flow velocity measurement system. The system includes a well fluid flow monitoring unit to determine a parameter of a well fluid flow in response to a vortex being produced in a well fluid, and provide the parameter. The system also includes a controller to receive the parameter determined by the flow monitoring unit, determine a frequency of the vortex from the received parameter, and determine a flow velocity of the well fluid based on the determined frequency. 1. A well fluid flow velocity measurement system , the system comprising: determine a parameter of a well fluid flow affected by a vortex being produced in a well fluid; and', 'provide the parameter; and, 'a well fluid flow monitoring unit to receive the parameter determined by the flow monitoring unit;', 'determine a frequency of the vortex from the received parameter; and', 'determine a flow velocity of the well fluid based on the determined frequency., 'a controller to2. The system of claim 1 , wherein the flow monitoring unit comprises:a housing;a structure in the housing positioned in a well fluid flow path to produce vortices; anda vortex sensor in the housing and in the well fluid flow path downstream relative to the structure.3. The system of claim 2 , wherein the vortex sensor comprises a pressure sensor which comprises a pitot tube or a strain gauge based pressure sensor.4. The system of claim 2 , wherein the controller is further provided to:identify a plurality of parameter values determined by the vortex sensor at a respective plurality of time instants separated by the specified time interval;receive the plurality of parameter values determined at the respective plurality of time instants from the flow monitoring unit; anddetermine the frequency of the vortex from the plurality of parameter values.5. The system of claim 4 , wherein claim 4 , to determine the frequency of the vortex ...

Differential pressure type flowmeter and flow controller provided with the same

There is provided a differential pressure type flowmeter that includes an orifice provided in a main flow channel, a first pressure sensor configured to detect pressure of fluid on an upstream side of the orifice, a second pressure sensor configured to detect pressure of fluid on a downstream side of the orifice, a first pressure introduction flow channel configured to guide the fluid on the upstream side of the orifice to the first pressure sensor, and a second pressure introduction flow channel configured to guide the fluid on the downstream side of the orifice to the second pressure sensor, wherein a flow channel length and a flow channel diameter of the first pressure introduction flow channel coincide with those of the second pressure introduction flow channel, respectively, and a ratio of the flow channel length to the flow channel diameter is not less than 20 times and not more than 30 times.

Dust measurement system for filter

A dust measurement system measuring the build up of dust on a filter includes a monitoring device, a pitot tube, and an environment control unit. The pitot tube head aligned with the filter. The environment control unit receives the measured speed of air flow and compares the measured speed with a preset value. When the measuring speed is greater than the preset value, the environment control unit outputs the first control signal to the monitoring device, to control the monitoring device to display that the filter does not need to be replaced. When the measuring speed is less than or equal to the preset value, the environment control unit outputs the second control signal to the monitoring device, to control the monitoring device to display that the filter needs to be replaced.

INTEGRATED SENSOR ASSEMBLY OF A RESPIRATORY THERAPY SYSTEM

A flow generator () for a respiratory therapy system configured to deliver a breathable gas flow to a patient comprises a housing () comprising an inlet () and an outlet () and a gas flow path between the inlet () and outlet (). An impeller is mounted within the housing () for rotation about an axis, the impeller configured to be rotationally driven by a motor to provide a gas flow along the gas flow path. Various embodiments are disclosed in which the flow generator () further comprises a sensor () mounted in the housing () in the gas flow path and configured to detect a property of the gas flow. The sensor () may be mounted in the outlet () so as to project into the gas flow path. Flow generator may comprise an axial inlet () and a tangential outlet (). In another embodiment the sensor () may be mounted in the inlet (). 1. A flow generator for a respiratory therapy system configured to deliver a breathable gas flow to a patient , the flow generator comprising:a housing comprising an inlet and an outlet and a gas flow path between the inlet and outlet;an impeller mounted within the housing for rotation about an axis, the impeller configured to be rotationally driven by a motor to provide a gas flow along the gas flow path;the flow generator further comprising a sensor mounted in the housing in the gas flow path and configured to detect a property of the gas flow.2. The flow generator of wherein the sensor is configured to detect differential pressure in the gas flow path.3. The flow generator of wherein the sensor is a flow sensor configured to generate a signal indicative of flow rate of the gas flow claim 2 , from the detected differential pressure.4. The flow generator of wherein the sensor is a pressure sensor configured to generate a signal indicative of the pressure of the gas flow claim 2 , from the detected differential pressure.5. The flow generator of wherein the sensor comprises first and second sensor openings claim 1 , the sensor being mounted in the ...

Real-Time Fluid Species Mass Flowmeter

A chemical species mass flow meter measurement system for use in fluid mixture streams includes a chemical species concentration detection analyzer physically located within a fluid volume flow rate sensing probe along with bulk temperature and pressure sensing devices for relating to standard conditions. The system uses concentration detection analyzers specifically suited to the intended application. Applications include the measurement of exhaust mass emissions from vehicles, the fuel economy of vehicles, as well as the measurement of the mass flow rate of chemical species of interest in general industrial processes. 1. A real-time chemical species mass flow rate measurement system comprising:Means for determining bulk flow rate of a flowing fluid;An analyzer for detecting concentration of at least one chemical species within said flowing fluid, said analyzer sampling location located within the physical boundaries of said means for determining bulk flow rate;Calculating means for calculating and reporting mass flow rates of at least one chemical species.2. A chemical species mass flow rate measurement system according to wherein said analyzer for detecting concentration of at least one chemical species within said flowing fluid employs at least one laser.3. A chemical species mass flow rate measurement system according to wherein said analyzer for detecting concentration of at least one chemical species within said flowing fluid is not open to fluid flow.4. A chemical species mass flow rate measurement system according to wherein said analyzer for detecting concentration of at least one chemical species within said flowing fluid further comprises a fluid sampling port at said sampling location.5. A chemical species mass flow rate measurement system according to wherein said means for determining bulk flow rate of a flowing fluid senses at least one fluid pressure.6. A chemical species mass flow rate measurement system according to wherein said means for ...

Air data probe assembly method

An air data probe includes a strut including a socket defining an interior surface of the strut and an interior groove extending radially into the interior surface. The air data probe also includes a probe head partially positioned within the socket, the probe head including an exterior surface and an exterior groove extending radially into the exterior surface, the exterior groove being axially alignable with the interior groove. The air data probe further includes a retaining ring partially positionable within the exterior groove and partially positionable within the interior groove when the exterior groove and the interior groove are axially aligned to axially retain the probe head to the strut while allowing the probe head to rotate relative to the strut.

METHOD OF FORMING AN ICE RESISTANT PITOT TUBE

A method of forming a pitot tube includes forming a substantially cylindrical body portion including an outer surface, a tip portion having an inlet opening and an interior defining a flow passage, radially tapering the outer surface from the body portion toward the inlet opening, and disposing at least one electrical coil including one or more coil wraps along the flow passage of the pitot tube. 1. A method of forming a pitot tube comprising:receiving a pitot tube having a substantially cylindrical body portion including an outer surface, a tip portion having an inlet opening, an interior defining a flow passage, a radially tapering outer surface that tapers from the body portion toward the inlet opening and at least one bulkhead positioned along the flow passage to limit travel of particles ingested into the pitot tube; andarranging one or more coil wraps along the flow path downstream of the at least one bulkhead.2. The method of claim 1 , wherein the radially tapered outer surface has a concave curve.3. The method of claim 1 , wherein arranging the at least one electrical coil includes arranging the one or more coil wraps to establish a variable watt density along the flow path.4. The method of claim 1 , further comprising: forming at least one drain opening in the substantially cylindrical body portion fluidically connecting the flow path and the outer surface.5. The method of claim 4 , wherein forming the at least one drain opening includes forming the drain opening upstream of the at least one bulkhead.6. The method of claim 5 , wherein forming the at least one drain opening upstream of the aft most bulkhead includes arranging the at least one drain opening directly adjacent the at least one bulkhead. This application is a continuation of U.S. application Ser. No. 14/922,659 filed Oct. 26, 2015, which is a continuation of U.S. application Ser. No. 14/065,878 filed Oct. 29, 2013 (now U.S. Pat. No. 9,207,253, Issued on Dec. 8, 2015), which claims priority to U. ...

Pitot tube

A pitot tube includes an outer tube extending from a first tube end to second tube end, the second tube end defining a tip portion of the pitot tube, the tip portion including an inlet opening. A tube sleeve inside of the outer tube at least partially defines a tube passage extending from the first tube end to the second tube end. The tube sleeve includes a sleeve outer surface having a sleeve body portion having a first outer diameter and a sleeve tip portion located at the tip portion of the pitot tube. The sleeve tip portion has a second outer diameter smaller than the first outer diameter. A heating element is located between the outer tube and the tube sleeve at at least the sleeve tip portion.

CONDUIT

Disclosed is a conduit () comprising a conduit wall defining a flow channel through which a fluid may flow and a plurality of further channels () through at least part of the conduit wall. Each further channel () comprises a first end () and a second end (). The first ends () of the further channels () are spaced apart along a length of the conduit () and comprise openings in fluid communication with the flow channel of the conduit (). The second ends () of the further channels () are located proximate to one another (e.g. substantially collocated) such that the distance between the second ends () of any two further channels () is smaller than the distance between the first ends () of those two further channels (). Pressure sensors () may be coupled to the second ends () of the further channels, which may be closed. 2. The conduit according to claim 1 , wherein at least part of at least one further channel runs longitudinally within the conduit wall along at least part of the length of the conduit wall.3. The conduit according to claim 2 , wherein claim 2 , for each of the plurality of further channels at least part of that further channel runs longitudinally within the conduit wall along at least part of the length of the conduit wall.4. The conduit according to claims 1 , wherein each part a further channel that runs longitudinally within the conduit wall along at least part of the length of the conduit wall is substantially parallel with the flow channel defined by the conduit wall.5. The conduit according to any of to claims 1 , wherein the opening of one or more of the further channels is arranged such that claims 1 , when a fluid flows through the flow channel of the conduit claims 1 , that opening is directed upstream.6. The conduit according to claim 1 , wherein the opening of one or more of the further channels is arranged such that claim 1 , when a fluid flows through the flow channel of the conduit claim 1 , that opening is a static port in communication ...

Method and Apparatus for Measuring Static Pressure

A method and apparatus for measuring static pressure. A tube is positioned within a hole in a structure. The hole has a hole diameter that is larger than a tube diameter of the tube such that a gap is formed between the tube and the hole. A first portion of deflected fluid that is deflected from a flow of fluid passing over the hole enters the gap and a second portion of the deflected fluid enters the tube. The static pressure of the fluid is measured at a location of the hole with the tube positioned within the hole. 1. A method for measuring static pressure , the method comprising:positioning a tube within a hole in a structure in which the hole has a hole diameter that is larger than a tube diameter of the tube such that a gap is formed between the tube and the hole and such that a first portion of deflected fluid that is deflected from a flow of fluid passing over the hole enters the gap and a second portion of the deflected fluid enters the tube; andmeasuring the static pressure of the fluid at a location of the hole with the tube positioned within the hole.2. The method of claim 1 , wherein positioning the tube within the hole in the structure comprises:positioning the tube within the hole such that an offset is formed between an end of the tube and an end of the hole.3. The method of claim 2 , wherein positioning the tube within the hole such that the offset is formed comprises:positioning the tube within the hole such that the end of the tube is located below a shear layer formed near a boundary between the fluid flowing past the hole and the deflected fluid.4. The method of further comprising:separating a higher total pressure portion of the deflected fluid within the gap from a portion of the deflected fluid within the tube, wherein a dynamic pressure of the portion of the deflected fluid within the tube is reduced to zero within selected tolerances.5. The method of further comprising:holding the tube in a fixed position relative to the hole using an ...

A FLOW METER

A flow meter () comprising a sampling tube () through which fluid may flow and a sensor arrangement (), wherein the sampling tube () comprises a first hollow section () having a first internal cross-sectional area (A) and a second hollow section () having a second internal cross-sectional area (A) being less than the first internal cross-sectional area (A); and the sensor arrangement (), is for measuring the difference between stagnation and static pressures (P, P, P, P) within the second hollow section (). 131-. (canceled)32. A flow meter , comprising:a sampling tube through which fluid may flow and a sensor arrangement, wherein the sampling tube comprises a first hollow section having a first internal cross-sectional area and a second hollow section having a second internal cross-sectional area being less than the first internal cross-sectional area; andthe sensor arrangement is for measuring the difference between stagnation and static pressures within the second hollow section.33. The flow meter according to claim 32 , wherein the sensor arrangement comprises one or more stagnation pressure measurement ports located within the second hollow section.34. The flow meter according to claim 33 , wherein the sensor arrangement comprises two stagnation pressure measurement ports located within the second hollow section and facing in opposite directions.35. The flow meter according to claim 32 , wherein the sensor arrangement further comprises one or more static pressure measurement ports located adjacent to the one or more stagnation pressure measurement ports.36. The flow meter according to claim 32 , wherein the sensor arrangement further comprises sensor circuitry located within the housing.37. The flow meter according to claim 33 , wherein each of the one or more stagnation pressure measurement ports is in communication with the sensor circuitry via one or more channels formed integrally in a wall of the housing.38. The flow meter according to claim 33 , wherein ...

PROCESS FOR MANUFACTURING A PITOT TUBE HAVING A GRAPHITE INSERT EMBEDDED THEREIN

Disclosed is a process of manufacturing a pitot tube assembly including: obtaining a metal cylindrical tube having a first axial portion that is a first material blank for an assembly inlet portion of the pitot tube assembly and a second axial portion that is a second material blank for a body portion of the pitot tube assembly; nesting the first axial portion of the tube within a cylindrical graphite insert; nesting the cylindrical graphite insert within a cylindrical sheath; constraining axial motion of the insert; performing laser scanning to the assembly inlet portion; and performing additive manufacturing to the pitot tube assembly inlet portion. 1. A process of manufacturing a pitot tube assembly comprising:obtaining a cylindrical tube having a first axial portion that is a first material blank for an assembly inlet portion of the pitot tube assembly and a second axial portion that is a second material blank for a body portion of the pitot tube assembly;nesting the first axial portion of the cylindrical tube within a cylindrical graphite insert;nesting the cylindrical graphite insert within a cylindrical sheath;constraining axial motion of the cylindrical graphite insert;performing laser scanning to the assembly inlet portion; andperforming additive manufacturing to the assembly inlet portion.2. The process of claim 1 , wherein the tube is nickel or a nickel alloy and the insert is pyrolytic or annealed pyrolytic graphite (APG).3. The process of claim 1 , comprising performing hot iso-static processing (HIPping) or heat treating of the assembly after performing laser metal deposition.4. The process of claim 1 , comprising securing the assembly with a rotary chuck when performing additive manufacturing or preforming additive manufacturing with a multi-axis machine.5. The process of claim 1 , wherein nesting the first axial portion of the tube within the insert includes providing a transition fit therebetween.6. The process of claim 5 , wherein nesting the ...

CUSTOMIZABLE DUCT MOUNT PITOT TUBE PRIMARY ELEMENT

A customizable duct mount averaging pitot tube (APT) assembly for use with a duct to measure a flow of fluid in the duct is provided. The APT assembly includes an APT primary element extending longitudinally between a first end and a second end. The APT primary element has first and second internal chambers extending longitudinally between the first and second ends. The APT primary element further includes an upstream face with an upstream opening which opens to the first internal chamber and extends from the first end to the second end, and a downstream face with a downstream opening which opens to the second internal chamber and extends from the first end to the second end. First and second duct mount flanges mount the respective first and second ends of the APT primary element to the duct when the APT primary element is inserted in the duct. 1. A customizable duct mount averaging pitot tube (APT) assembly for use with a duct to measure a flow of fluid in the duct , the APT assembly comprising:an APT primary element extending longitudinally between a first end and a second end, the APT primary element having first and second internal chambers extending longitudinally between the first and second ends, the APT primary element having an upstream face with an upstream opening which opens to the first internal chamber and extends from the first end to the second end, and a downstream face with a downstream opening which opens to the second internal chamber and extends from the first end to the second end; andfirst and second duct mount flanges configured to respectively mount the first and second ends of the APT primary element to the duct when the APT primary element is inserted in the duct.2. The duct mount APT assembly of claim 1 , wherein the APT primary element is formed from extruded material.3. The duct mount APT assembly of claim 2 , wherein the extruded material comprises plastic.4. The duct mount APT assembly of claim 1 , wherein the APT primary element is ...

METHODS OF THREE DIMENSIONAL (3D) AIRFLOW SENSING AND ANALYSIS

Embodiments of methods and apparatus for close formation flight are provided herein. In some embodiments, a method of sensing three dimensional (3D) airflow by an aircraft includes: collecting measurements characterizing airflow near the aircraft; analyzing the collected measurements; creating, by a processor, a computer model predicting one or more 3D airflow patterns parameter values based on the analyzing; obtaining one or more additional measurements characterizing airflow near an aircraft of the plurality of aircraft, and evaluating an error between an airflow parameter value predicted by the computer model and the one or more additional measurement.

Air Data Probe With Improved Performance at Angle of Attack Operation

An air data probe has a pitot tube with a tap at a forward end that defines an inner flow path. The inner flow path decreases in the cross-sectional area until reaching a throat. The inner flow path has cross-sections that are generally cylindrical and also has sections of removed material. Other embodiment have unique shapes. 1. An air data probe comprising:a pitot tube having a tap with a forward end, and defining an inner flow path, the inner flow path decreasing in cross-sectional area until reaching a throat; andsaid inner flow path having cross-sections which are generally cylindrical, and also having sections of removed material.2. The air data probe as set forth in claim 1 , wherein said sections of removed material include at least one bleed hole extending from an outer periphery of said pitot tube to communicate air into said inner flow path.3. The air data probe as set forth in claim 2 , wherein an inlet of said at least one bleed hole is upstream of said throat.4. The air data probe as set forth in claim 3 , wherein there are a plurality of said at least one bleed hole.5. The air data probe as set forth in claim 1 , wherein said removed material includes at least one slot claim 1 , with said generally cylindrical sections circumferentially spaced between said slots.6. The air data probe as set forth in claim 5 , wherein said at least one slot has a relatively circumferentially thin portion adjacent the forward end of said pitot tube and relatively circumferentially enlarged portions downstream of said relatively thinner portion.7. The air data probe as set forth in claim 6 , wherein there are a plurality of said at least one slots.8. The air data probe as set forth in claim 6 , wherein said at least one slot ends at said throat.9. The air data probe as set forth in claim 1 , wherein said removed portions end at said throat.10. The air data probe as set forth in claim 1 , wherein said pitot tube is provided with a relatively long nose portion of ...

Hybrid air data systems using lidar and legacy air data sensors

An air data system comprises an optical air data system comprising one or more LiDAR channels that each include at least one line-of-sight for air data interrogation, wherein the LiDAR channels are configured to output a set of air data signals. An optional non-optical air data system comprises one or more non-optical air data sensors selected from one or more pitot sensors, one or more static pressure sensors, one or more temperature sensors, one or more angle of attack vanes, one or more angle of sideslip vanes, one or more multi-function probes, or combinations thereof. The non-optical air data sensors are configured to output a set of air data signals. One or more processors are coupled to the LiDAR channels and the non-optical air data sensors when present. The processors are configured to use the air data signals to conduct signal analysis, data processing, data augmentation, voting, or combinations thereof.

METHODS OF THREE DIMENSIONAL (3D) AIRFLOW SENSING AND ANALYSIS

Embodiments of methods and apparatus for close formation flight are provided herein. In some embodiments, a method of sensing three dimensional (3D) airflow by an aircraft includes: collecting measurements characterizing airflow near the aircraft; analyzing the collected measurements; creating, by a processor, a computer model predicting one or more 3D airflow patterns parameter values based on the analyzing; obtaining one or more additional measurements characterizing airflow near an aircraft of the plurality of aircraft, and evaluating an error between an airflow parameter value predicted by the computer model and the one or more additional measurement. 1. A method of searching for an airflow pattern , comprising:defining a target search area relative to an aircraft;establishing a dithering flight pattern intersecting with the target area;collecting measurements characterizing airflow near the aircraft during the dithering flight pattern;analyzing the collected measurements; anddetermining a location of an airflow pattern based on the analyzing.2. The method of claim 1 , wherein the target search area is defined with respect to a second aircraft.3. The method of claim 1 , wherein the dithering flight pattern is maintained continuously by the aircraft until sufficient data is collected to create a model of the airflow pattern.4. The method of claim 1 , further comprising exchanging telemetry data with other aircraft.5. The method of claim 1 , wherein the airflow pattern is a vortex generated by a second aircraft.6. The method of wherein the determining comprises using a neural network for vortex pattern recognition.7. The method of claim 1 , wherein the determining a location of the airflow pattern comprises performing continuous vortex sensing using at least two different airflow sensors.8. The method of claim 1 , wherein the determining a location of the airflow pattern comprises performing continuous vortex sensing using a plurality of airflow sensors ...

Measuring device and measuring method for a flow

A measuring device, in particular for a flow inside a turbomachine, in particular in an aircraft engine. The measuring device includes at least one suction intake opening for fluid from an area of a mixed-out flow, wherein the at least one suction intake opening is arranged at a distance from a wall that delimits the flow, and fluid that is suctioned in through a fluid channel can be conducted to a sensor device.

SYSTEM FOR THE INSPECTION OF AIR DATA PROBES

A method of inspecting an air data probe for damage or misalignment on a mounting surface includes retrieving reference data for the air data probe from a database, capturing images of the air data probe via a camera and generating dimensions from the captured images of the air data probe via a feature extractor. An alignment calculator analyzes the generated dimensions from the captured images of the air data probe and the reference data for the air data probe from the database to identify misalignment of the air data probe, and analyzes the generated dimensions from the captured images of the air data probe and the reference data for the air data probe from the database to identify damage of the air data probe. A maintenance recommendation for the air data probe is generated and outputted, based on the identified misalignment or damage of the air data probe. 1. A method of inspecting an air data probe for damage , degradation , or misalignment on a mounting surface , the method comprising:retrieving reference data for the air data probe from a database;capturing images of the air data probe via a camera;generating dimensions from the captured images of the air data probe via a feature extractor;analyzing with an alignment calculator the generated dimensions from the captured images of the air data probe and the reference data for the air data probe from the database to identify misalignment of the air data probe;analyzing with an alignment calculator the generated dimensions from the captured images of the air data probe and the reference data for the air data probe from the database to identify damage of the air data probe;generating, based on the identified misalignment of the air data probe, or the identified damage of the air data probe a maintenance recommendation for the air data probe; andoutputting the maintenance recommendation.2. The method of claim 1 , wherein the air data probe comprises:a base connected to the mounting surface;a strut, wherein the ...

METHODS FOR SITUATIONAL AWARENESS DURING FORMATION FLIGHT

Embodiments of methods and apparatus for close formation flight are provided herein. In some embodiments, a method for establishing situational awareness during formation flight includes exchanging transponder signals between at least two aircraft, establishing two-way communication links between the at least two aircraft, exchanging telemetry data between the at least two aircraft, and assigning the roles of a leader and a follower to the aircraft. 1. A method for establishing situational awareness during formation flight , comprising:establishing two-way communication links between at least two aircraft for exchanging at least telemetry data between the at least two aircraft;determining relative target positions for the at least two aircraft based on at least one metric;providing first flight control inputs to at least one of the at least two aircraft to establish the relative target positions;tracking, by at least one of the at least two aircraft, the at least one metric; andproviding second flight control inputs to at least one of the at least two aircraft to adjust the relative target positions based on results of the tracking.2. The method of claim 1 , further including exchanging flight plans and commands via the two-way communication links.3. The method of claim 1 , further including one of selecting a pattern claim 1 , shape and size for a formation claim 1 , configuring flight control systems for a formation flight claim 1 , and configuring payload for formation flight on at least one aircraft.4. The method of claim 1 , further comprising establishing a communication network for exchange of data between the at least two aircraft.5. The method of claim 4 , wherein establishing a communication network includes selecting at least one network channel and a transmission protocol for exchanging at least one of flight plans or commands.6. The method of claim 5 , wherein the selecting comprises selecting a peer-to-peer protocol.7. The method of claim 4 , wherein ...

System and Method for Performing a Test on a Pitot Probe Heating Element

A system for testing a pitot probe heating element includes first and second probes, measuring signals selected from a first signal representing a differential electric current between supply and return wires of the heating element, a second signal representing a residual voltage with respect to ground in the heating element, and a third signal representing ambient electric fields with respect to ground in the heating element; a signal acquisition component that selectively and sequentially applies a test voltage to the heating element to generate the selected signals and receives the selected signals measured by the first and second probes; a signal processing component that receives the selected ones of the first, second, and third signals, processes them, and extracts measurements from the data to generate results indicative of a condition of the heating element; a device control component that generates a display; and a display component. 1. A system for performing a test on a pitot probe heating element , the system comprising:a first probe and a second probe, the first probe and the second probe each measuring different diagnostic electrical signals;a signal acquisition component that selectively and sequentially applies a test voltage to the heating element to generate the different diagnostic electrical signals, and receives the different diagnostic electrical signals measured by the first probe and the second probe;a signal processing component that receives the different diagnostic electrical signals from the signal acquisition component, processes the different diagnostic electrical signals, and extracts measurements from the data in the different diagnostic electrical signals to generate results indicative of a condition of the heating element;a device control component that receives the results from the signal processing component and generates a display signal indicative of the results; anda user interface component that communicates the results to a ...

HYBRID MATERIAL AIRCRAFT SENSORS AND METHOD OF MANUFACTURING

An air data probe includes a probe body including a probe wall. The probe body is formed from a first material by direct energy metal deposition. An insert is positioned in the probe wall. The insert is formed from a second material different from the first material. The insert is encapsulated in the probe wall via the direct energy metal deposition. A method of forming an air data probe includes forming one or more thermally conductive inserts, and encapsulating the one or more inserts into a wall of an air data probe via direct energy metal deposition. The air data probe is formed from a first material and the one or more inserts are formed from a second material different from the first material. 1. An air data probe , comprising:a probe body including a probe wall, the probe body formed from a first material by direct energy metal deposition; andan insert disposed in the probe wall, the insert formed from a second material different from the first material, the insert encapsulated in the probe wall via the direct energy metal deposition.2. The air data probe of claim 1 , wherein the second material has a higher thermal conductivity than the first material.3. The air data probe of claim 2 , wherein the second material is one of annealed pyrolytic graphite (APG) claim 2 , graphite or copper.4. The air data probe of claim 1 , wherein the first material is a nickel or copper alloy material.5. The air data probe of claim 1 , wherein the insert includes a coating portion of a chromium or nickel material.6. The air data probe of claim 1 , wherein the insert includes one or more through openings extending therethrough.7. The air data probe of claim 6 , wherein a coating portion of chromium or nickel material at least partially fills the one or more through holes.8. The air data probe of claim 1 , wherein the air data probe is one of a pitot tube or a total air temperature probe.9. A method of forming an air data probe claim 1 , comprising:forming one or more thermally ...

SYSTEMS, METHODS, AND DEVICES FOR FLUID DATA SENSING

A fluid sensing device includes an outer body having a fore side, an aft side, and an interior space, the outer body including a fluid inlet disposed at the fore side; an inner body extending at least partially out of the fluid inlet of the outer body along a longitudinal axis; one or more vents disposed aft of the fluid inlet to allow passage of fluid through the fluid sensing device; and at least one load sensor coupled to the inner body to measure a fluid drag force on the inner body, wherein the inner body is configured to induce the Coanda effect in at least a portion of a fluid contacting the inner body at an angle transverse to a longitudinal axis of the inner body. 1. A fluid sensing device , comprising:an outer body having a fore side, an aft side, and an interior space, the outer body including a fluid inlet disposed at the fore side;an inner body extending at least partially out of the fluid inlet of the outer body along a longitudinal axis;one or more vents disposed aft of the fluid inlet to allow passage of fluid through the fluid sensing device; andat least one load sensor coupled to the inner body to measure a fluid drag force on the inner body,wherein the inner body is configured to induce the Coanda effect in at least a portion of a fluid contacting the inner body at an angle transverse to a longitudinal axis of the inner body.2. The fluid sensing device of claim 1 , wherein the load sensor includes an axial load sensor.3. The fluid sensing device of claim 1 , wherein the inner body includes a hollow interior housing one or more inner body sensors.4. The fluid sensing device of claim 3 , wherein the one or more inner body sensors include one or more temperature sensor claim 3 , rate gyro claim 3 , GPS unit claim 3 , accelerometer claim 3 , radar device claim 3 , pressure sensor claim 3 , magnetometer claim 3 , timing clock claim 3 , or optical sensor.5. The fluid sensing device of claim 1 , wherein the load sensor includes a torsional load sensor.6. ...

CORROSION RESISTANT SLEEVE FOR AN AIR DATA PROBE

A corrosion resistant sleeve for an air data probe with the sleeve being cylindrical in shape with a first end and a second end, at least one circumferentially extending groove on an outside of the sleeve configured to accommodate coils of a heater, and a bore at a center of the sleeve and extending between the first end and the second end configured to provide a pneumatic pathway that allows atmospheric conditions to reach measurement equipment of the air data probe. 1. A corrosion resistant sleeve for an air data probe comprising:the sleeve being cylindrical in shape with a first end and a second end;at least one circumferentially extending groove on an outside of the sleeve configured to accommodate heater coils; anda bore at a center of the sleeve and extending between the first end and the second end configured to provide a pneumatic pathway that allows atmospheric conditions to reach measurement equipment of the air data probe.2. The corrosion resistant sleeve of claim 1 , further comprising:a tip integral with the sleeve, the tip being adjacent the first end of the sleeve with the bore extending through the tip.3. The corrosion resistant sleeve of claim 2 , wherein the sleeve and tip are one continuous component.4. The corrosion resistant sleeve of claim 2 , wherein the tip is cylindrical in shape with a larger diameter than an outer diameter of the sleeve.5. The corrosion resistant sleeve of claim of claim 4 , wherein the bore within the tip has an increasing cross-sectional area as the bore extends towards a forward end of the tip.6. The corrosion resistant sleeve of claim 1 , wherein the sleeve is constructed from nickel.7. The corrosion resistant sleeve of claim 1 , wherein the at least one groove encircles the outside of the sleeve in a spiral configuration.8. An air data probe comprising:a sleeve having a first end and a second end, the sleeve including a circumferentially extending groove on an outside surface and a bore extending along a center of the ...

Flowmeter primary element with sensors

A process variable transmitter is configured as a flowmeter for measuring flow of a process fluid through a conduit. The transmitter includes a pitot tube extending into the conduit which creates a differential pressure in the process fluid due to flow of the process fluid. An upstream process variable sensor is mounted on the pitot tube and coupled to the flow of process fluid to sense an upstream process variable of the process fluid. A downstream process variable sensor is mounted on the pitot tube downstream of the upstream process variable sensor and coupled to the flow of process fluid to sense a downstream process variable of the process fluid. Measurement circuitry determines the flow of the process fluid based upon the upstream process variable and the downstream process variable.

CORROSION-RESISTANT HEATED AIR DATA PROBE METHODS

A method of making an air data probe may comprise forming a probe body, forming an interior cavity into the probe body, applying a protective shell to the probe body by an additive manufacturing technique, inserting a heating element into the interior cavity, machining a final profile of the air data probe, and forming a sensing port comprising a port passage defined through the probe body and lined by a portion of the protective shell 1. A method of making an air data probe comprising:forming a probe body;forming an interior cavity into the probe body;applying a protective shell to the probe body by an additive manufacturing technique;inserting a heating element into the interior cavity;machining a final profile of the air data probe; andforming a sensing port comprising a port passage defined through the probe body and lined by a portion of the protective shell.2. The method according to claim 1 , wherein forming the sensing port further comprises:forming a sensing port recess comprising an indentation formed in the probe body; andapplying the portion of the protective shell disposed over the sensing port recess and forming a substantially continuous surface over the indentation,wherein the port passage comprises an aperture defined by the portion of the protective shell and in fluidic communication with an environment and the interior cavity.3. The method according to claim 2 , wherein the port passage is aligned coincident with a geometric center of the sensing port recess. This application is a divisional of U.S. patent application Ser. No. 15/045,907, filed on Feb. 17, 2016, and entitled “CORROSION-RESISTANT HEATED AIR DATA PROBE,” which claims the benefit of priority of U.S. Provisional Application No. 62/142,341, entitled “CORROSION-RESISTANT HEATED AIR DATA PROBE,” filed Apr. 2, 2015, the disclosures of which are hereby incorporated by reference herein in their entirety.The present disclosure relates to the field of data sensing. More particularly, the ...

PITOT-STATIC PROBE WITH PNEUMATIC ANGLE-OF-ATTACK SENSOR

An air data probe includes a housing and a probe head with a body, total pressure and alpha chambers, total pressure and alpha ports, and alpha drain ports. The total pressure chamber extends through a radial center of the body. The alpha chambers are disposed radially outward from the total pressure chamber. The total pressure port is disposed in a distal end of the body is collinear with a centerline axis of the body. The total pressure chamber is in fluid communication with the total pressure port and with the housing. The alpha ports are disposed downstream of the total pressure port and upstream of the housing. The alpha chambers are in fluid communication with the alpha ports. The alpha drain ports are disposed downstream from the alpha port and upstream from the housing. The alpha drain ports fluidly communicate with the alpha chamber. 1. An air data probe for use with an aircraft , the air data probe comprising:a housing; and a body connected to and extending from the housing, wherein the body comprises an outer wall region and a tubular shape, wherein body is connected to the housing at a downstream end of the body;', 'a total pressure port disposed in a distal end of the body opposite from the housing, wherein the distal end of the body opposite from the housing comprises an upstream end of the body, wherein the total pressure port is aligned collinear with a centerline axis of the body;', 'a total pressure chamber extending through a radial center of the body, wherein the total pressure chamber is in fluid communication with the total pressure port and with the housing;', 'a first alpha port disposed in the body at a location positioned downstream of the total pressure port and upstream of the housing;', 'a first alpha chamber extending through a portion of the body, wherein the first alpha chamber is in fluid communication with the first alpha port, wherein the first alpha chamber is disposed radially outward from the total pressure chamber;', 'a first ...

AIR DATA PROBE ASSEMBLY TO FACILITATE RAPID REPLACEMENT

An air data probe assembly is disclosed. The air data probe assembly includes an air data probe that includes a baseplate portion and a sensor portion. The baseplate portion includes one or more screw holes and one or more connectors on an underside of the baseplate portion. The air data probe assembly also includes a baseplate gasket that wraps around an underside and one or more edges of the baseplate portion, wherein the baseplate gasket comprises one or more holes corresponding to the one or more screw holes and the one or more connectors on the underside of the baseplate portion. When wrapped around the baseplate portion while the baseplate portion is fastened to a recess in an aircraft skin, the baseplate gasket creates a moisture-resistant seal between the air data probe and the recess in the aircraft skin. 1. An air data probe assembly , comprising ,an air data probe that comprises a baseplate portion and a sensor portion, wherein the baseplate portion comprises one or more screw holes and one or more connectors on an underside of the baseplate portion; anda baseplate gasket that wraps around an underside and one or more edges of the baseplate portion, wherein the baseplate gasket comprises one or more holes corresponding to the one or more screw holes and the one or more connectors on the underside of the baseplate portion,wherein when wrapped around the baseplate portion while the baseplate portion is fastened to a recess in an aircraft skin, the baseplate gasket creates a moisture-resistant seal between the air data probe and the recess in the aircraft skin.2. The air data probe assembly of claim 1 , further comprising one or more screw assemblies claim 1 , each comprising a screw that is partially wrapped by a screw gasket claim 1 , wherein each screw assembly threads through one of the screw holes in the baseplate portion claim 1 , through one of the holes in the baseplate gasket claim 1 , and into a hole in a recess of an aircraft skin.3. The air data ...

ENHANCEMENTS FOR DIFFERENTIAL-PRESSURE-DRIVEN FLUID FLOWS

A pitot tube includes a wall that extends longitudinally along an axis. The wall defines an inlet aperture at a longitudinal end of the wall, an outlet aperture opposite the inlet aperture, an interior cavity extending from the inlet aperture to an outlet aperture, a passage extending through and perpendicular to the wall having an outlet along an exterior surface of the wall, and an augmenting feature configured to reduce a static pressure at the outlet of the passage. In another embodiment, a wall defines a passage and an augmenting feature that modifies a flow direction of fluid flowing across an outlet of the passage such that a static pressure of the fluid at the outlet is reduced relative to the wall without the augmenting feature. 1. A pitot tube comprising: an inlet aperture at a longitudinal end of the wall;', 'an outlet aperture opposite the inlet aperture;', 'an interior cavity extending from the inlet aperture to an outlet aperture, wherein the inlet aperture places the interior cavity in communication with a space exterior to the wall;', 'a passage extending through and perpendicular to the wall having an outlet along an exterior surface of the wall; and', 'an augmenting feature configured to reduce a static pressure at the outlet of the passage., 'a wall extending longitudinally along an axis, wherein the wall defines2. The pitot tube of claim 1 , wherein the augmenting feature is a protrusion having a wedge-shaped longitudinal cross-section.3. The pitot tube of claim 2 , wherein a radial thickness of the protrusion increases from an upstream end of the protrusion closest to the inlet aperture to a longitudinal location between the upstream end and a central axis of the passage.4. The pitot tube of claim 3 , wherein a maximum radial thickness of the protrusion is coincident with the central axis of the passage.5. The pitot tube of claim 2 , wherein the protrusion has a radial thickness defined by a linear profile or a second order polynomial profile.6. ...

MULTIDIRECTIONAL AIRSPEED DETECTION SYSTEM

A pitot-static array system for a tail-sitting aircraft has a disk with a plurality of edge ports arrayed about an edge of the disk. Each of a plurality of pressure transducers is configured to measure air pressure at one of the edge ports. The edge ports are arrayed about an axis parallel to a pitch axis of the aircraft. 1. A pitot-static array system for a tail-sitting aircraft , the pitot-static array system comprising:a disk having a plurality of edge ports arrayed about an edge of the disk; anda plurality of pressure transducers, each transducer configured to measure air pressure at one of the edge ports;wherein the edge ports are arrayed about an axis parallel to a pitch axis of the aircraft; andwherein at least one of the edge ports is used as a ram pressure port;wherein at least one of the edge ports is used as a static pressure port.2. (canceled)3. (canceled)4. The system of claim 1 , further comprising:a processor configured to receive outputs from the transducers;wherein the processor determines an airspeed of the aircraft from the outputs of the transducers.5. The system of claim 1 , further comprising:a processor configured to receive outputs from the transducers;wherein the processor determines an angle of attack of the aircraft from the outputs of the transducers.6. The system of claim 1 , further comprising:a processor configured to receive outputs from the transducers;wherein the processor determines a sideslip of the aircraft from the outputs of the transducers.7. The system of claim 1 , wherein the edge ports are arrayed around one-half of the edge of the disk.8. The system of claim 1 , wherein the edge ports are arrayed around one-quarter of the edge of the disk.9. The system of claim 1 , wherein the transducers are located inside the disk.10. The system of claim 1 , wherein the transducers are located external to the disk.11. The system of claim 1 , further comprising:a signal conditioner;wherein the pressure transducers are assembled with the ...

FLOW MEASURING APPARATUS AND INHALATION APPARATUS COMPRISING THE SAME

The present document describes a flow measuring apparatus for measuring a flow through a section of an inhalation apparatus, comprising at least one set of Pitot tubes first a second Pitot tube and streamlinings extending longitudinally parallel to the Pitot tubes and the set of Pitot tubes is configured for traversing entirely a lumen which define the section of the inhalation apparatus and are respectively fluidly connected to a differential pressure sensor for measuring a difference between a stagnation pressure and a static pressure within the flow measuring apparatus. 1. An apparatus for measuring a nasal airflow in a subject in need thereof , comprising: a first Pitot tube and a second Pitot tube, which both extend longitudinally and are parallel, said first Pitot tube comprising at least two outward openings facing a direction of said flow, and said second Pitot tube comprising at least two outward openings facing a direction opposed to said flow, wherein said at least two openings facing a direction of said flow and said at least two openings facing a direction opposed to said flow are substantially coplanar along the longitudinal axis of said first and said second Pitot tubes;', 'a first streamlining comprising', 'first and second planar surfaces joined at a first common edge to form a wedge extending longitudinally parallel to said first Pitot tube, and', 'at least one wedge opening aligned with and in fluid communication with said at least two outward openings of said first Pitot tube;', 'said first common edge and said at least one wedge opening outwardly facing a direction of said flow;', 'at least two guiding conduits substantially perpendicular to the at least one set of Pitot tubes, each of the at least two guiding conduits surrounding a corresponding one or corresponding ones of the at least two outward openings facing a direction of said flow;', 'said flow measuring apparatus configured to be positioned under a nose of said subject toward which the ...

PITOT TUBE INSTRUMENT

An apparatus for obtaining pressure measurements in an airstream includes a Pitot tube. The Pitot tube includes at least one total pressure port configured to be positioned in the airstream facing upstream, at least one static pressure port configured to be positioned in the airstream facing downstream, at least one first directional port, and at least one second directional port. The at least one first directional port and the at least one second directional port are positioned on opposite sides of the at least one total pressure port and face obliquely with respect to the direction that the at least one total pressure port faces. 1. An apparatus for obtaining pressure measurements in an airstream , the apparatus comprising: at least one total pressure port configured to be positioned in the airstream facing upstream;', 'at least one static pressure port configured to be positioned in the airstream facing downstream;', 'at least one first directional port; and', 'at least one second directional port,, 'a Pitot tube comprisingwherein the at least one first directional port and the at least one second directional port are positioned on opposite sides of the at least one total pressure port and face obliquely with respect to the direction that the at least one total pressure port faces.2. The apparatus recited in claim 1 , wherein the Pitot tube extends along a longitudinal Pitot axis claim 1 , and wherein the at least one total pressure port claim 1 , the at least one static pressure port claim 1 , the at least one first directional port claim 1 , and the at least one second directional port each extend along a respective axis that extends radially from the Pitot axis.3. The apparatus recited in claim 2 , wherein the axis along which the at least one first directional port extends and the axis along which the at least one second directional port extends are at an angle relative to each other.4. The apparatus recited in claim 3 , wherein the angle is between 90 and ...

AVERAGING PITOT TUBE HAVING AN ADJUSTABLE RESONANT FREQUENCY

An averaging pitot tube probe assembly for use in sensing a parameter of a fluid flow in a process vessel includes an averaging pitot tube probe extending through the process vessel. The probe includes a first end extending through a first opening in the process vessel, and a second end extending through a second opening in the process vessel. A fixed mount secures the first end in a fixed position relative to the process vessel. A tensioning mount includes a tensioner that is attached to the second end of the probe and is configured to adjust a tension in the probe, and thereby adjust a resonant frequency of the probe. 1. An averaging pitot tube probe assembly for use in sensing a parameter of a fluid flow in a process vessel , the device comprising:an averaging pitot tube probe extending through the process vessel and including a first end extending through a first opening in the process vessel, and a second end extending through a second opening in the process vessel;a fixed mount securing the first end in a fixed position relative to the process vessel; anda tensioning mount including a tensioner attached to the second end of the probe and configured to adjust a tension in the probe and thereby alter a resonant frequency of the probe.2. The assembly of claim 1 , wherein the tensioner includes an adjustment mechanism comprising a first member having a threaded exterior surface and a second member having a threaded socket that receives the threaded exterior surface of the first member claim 1 , rotation of the first member relative to the second member adjusts the tension in the probe.3. The assembly of claim 2 , wherein the first member is attached to the second end of the probe claim 2 , and the second member extends distally from the first member and the second end of the probe.4. The assembly of claim 2 , wherein the second member is attached to the second end of the probe claim 2 , and the first member extends distally from the second member and the second ...

Air data probe with weld sealed insert

A probe head of an air data probe includes an insert, a portion of a heater, an outer shell, a tip weld, and a braze. The insert includes a first end, a second end opposite the first end, and a body portion extending between the first end and the second end. The body portion includes a groove. The portion of the heater is positioned within the groove. The outer shell surrounds the insert and the portion of the heater. The outer shell includes a tip portion defining a first end of the outer shell and a body portion extending from the tip portion defining a second end of the outer shell. The tip weld is between the outer shell and the first end of the insert, and the braze is between the insert and the second end of the outer shell adjacent a second end of the insert. The portion of the heater is hermetically sealed between the insert and the outer shell.

Pitot plug for fluid-meters.

Device for multi-point data acquisition/medium distribution, in partcicular probe for pressure measurements in air intake of turbo-machine

FIELD: machine building. SUBSTANCE: invention provides for twisted arrangement of the pipelines in zone of reception/distribution at many heights by single device. In particular, to measure rotation during flight the device is pressure probe, in it probe casing has the first part or section for pressure data acquisition, forming the cylinder with diameter at least 6 mm. The probe has internal pipelines (C1-C9) along parallel spirals, and channels (K1-K9) formed in casing out of the metal alloy between the pipelines (C1-C9) and input holes (01-03, 04-06, 07-09), located at three different heights (H1-H3) of the probe casing. EFFECT: data acquisition or assurance of data acquisition, or medium distribution as per multiple points, accurately and quick with good spatial resolution and minimum dimensions. 10 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 564 364 C2 (51) МПК G01M 15/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012147801/06, 24.05.2011 (24) Дата начала отсчета срока действия патента: 24.05.2011 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): БУАССЕЛО Дени (FR), АРИЙА Жан-Батист (FR), БИСКЭ Пьер (FR) 25.05.2010 FR 1054003 (43) Дата публикации заявки: 27.06.2014 Бюл. № 18 R U (73) Патентообладатель(и): ТУРБОМЕКА (FR) (45) Опубликовано: 27.09.2015 Бюл. № 27 C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 25.12.2012 (86) Заявка PCT: FR 2011/051171 (24.05.2011) 2 5 6 4 3 6 4 (87) Публикация заявки PCT: R U 2 5 6 4 3 6 4 (56) Список документов, цитированных в отчете о поиске: GB 2231667 A, 21.11.1990. WO 8501578 A1, 11.04.1985. DE 19640606 C1, 11.09.1997. DE 2036044 A1, 27.01.1972. WO 9109274 A1, 27.06.1972. WO 2006092375 A1, 08.09.2006. EP 2039978 A2, 25.03.2009. RU 2231662 C2, 27.06.2004. SU 1483300 A1, 30.05.1989. SU 994953 A, 07.02.1983. WO 2011/148094 (01.12.2011) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО " ...

Average pitot tube type flow meter

본 발명에 따른 평균피토관 타입의 유량측정장치(1000)는 상호간에 이격된 전압관(100)과 정압관(200)을 가지며 이들 전압관(100)과 정압관(200)을 가로질러 정류장치(810)와 연결케이스(120)가 일체화되어 설치된다. 정류장치(810)는 전압구멍(108)의 전방에 설치되며, 연결케이스(120)는 그 내부에 전압구멍(108)과 정압구멍(208)이 위치된다. The average pitot tube type flow rate measuring device 1000 according to the present invention has a voltage tube 100 and a positive pressure tube 200 spaced apart from each other, and the stop value (cross) across the voltage tube 100 and the positive pressure tube 200 ( 810 and the connection case 120 are integrally installed. The stop 810 is installed in front of the voltage hole 108, the connection case 120 is a voltage hole 108 and the positive pressure hole 208 is located therein.

Flow meter pitot tube with temperature sensor

본 발명은 몸체(4)로 이루어진 흐름 측정 시스템을 위한 온도 및 압력 감지 프로브 조립체(2)에 관련되고, 상기 몸체 일부분은 파이프(6)와 같은 한정된 도관 내에서 흐르는 유체로 삽입하기에 적합하다. 흐름에 대해 고저 유압에 각각 노출되는 분리된 플리넘(40,42)이 몸체 안에 배치된다. 밸브 및 유체 운반 채널과 함께, 이 블록은 전기 전도체(30)를 지지하기 위한 덕트를 장착하고 있고 몸체와 정렬되고 전도체 운반 덕트와 통하는 가로 보어(35)를 포함한다. 전기 감응 온도 센서(32)는 몸체 안에 배치되거나 몸체에서 형성된다. 온도 센서로부터 전도체는 매니포울드의 보어로부터 연결관을 통하여 매니포울드의 외부점까지 향하고 있다. The present invention relates to a temperature and pressure sensing probe assembly 2 for a flow measurement system consisting of a body 4, wherein the body portion is suitable for insertion into a fluid flowing in a defined conduit such as a pipe 6. Separate plenums 40 and 42 are respectively disposed within the body that are exposed to high and low hydraulic pressures for the flow. Together with the valve and fluid delivery channel, the block is equipped with a duct for supporting the electrical conductor 30 and includes a transverse bore 35 aligned with the body and in communication with the conductor delivery duct. The electrical sensitive temperature sensor 32 is disposed in or formed in the body. The conductor from the temperature sensor is directed from the manifold's bore through the connector to the outer point of the manifold.