DURCHFLUSSMESSER FÜR FLUIDE

Improvements in or relating to the measurement of broken granular or powdered materials

... 481,295. Actuation of switches. LEA RECORDER CO., Ltd., and HORNER, J. W. Sept. 14, 1936, No. 24959. [Class 38 (v)] [Also in Groups XXIX and XXXVIII] An apparatus such as that described in Specification 196,739, [Class 110 (ii)], for measuring broken, granular, or powdered material delivered through a shoot a, in which an endless chain e carrying pallets e<1> passes through the shoot so as to move with the flowing material and actuate a mechanical or electrical measuring or recording instrument, comprises in the form shown a quick make and break switch operated by means which are acted upon by the pallets as they pass over the pulley f, the switch controlling the circuit of an impulse mechanism actuating a recording instrument. A shaft n is given a step-by-step rotation by a ratchet wheel p<1> engaged by a pawl o<2> on a bellcrank lever o, o<1> rocked by the pallets e<1> as they pass it. The shaft carries two further ratchet wheels, the teeth on each being in staggered relation to those ...

FLOW METER FOR FLUIDS

TRAVELING WAVE FLOW METER

A flowmeter comprising means for conducting fluid, the rate of flow of which is to be measured, flexure means arranged to undulate in response to fluid flow, whereby a travelling wave is propagated along the flexure means, and means for detecting a parameter of the travelling wave which is a function of the rate of flow of the fluid. The parameter of the travelling wave may be the frequency or the velocity of propagation thereof, for example.

TRAVELING WAVE FLOW METER

Improvements in means for measuring quantities or flow of solid material in relatively small pieces

... 214,726. Vance, C. E. Jan. 26, 1923. Flow meters for granular materials.-Apparatus for measuring the quantity and/or the rate of flow of materials such as grain, coal in the form of nuts or slack, &c. comprises a shoot through which the material is caused to flow, a flexible member introduced into the shoot and drawn along by the material, and means for indicating, registering or recording the length of the member drawn through the shoot and/or its rate of travel. As shown in Fig. 2, the shoot 1 is provided with a guide or spout 2 through which passes a flexible member 20 formed of string, paper, wire &c., a supply of which is contained in the lower portion of a casing 8. The flexible member is arranged to pass between springs 18 and is wrapped round a drum 13 mounted on the spindle of a revolutions counter 16. Instead of the counter a mechanism may be substituted to indicate or record the rate of flow of the material. In a modified form the flexible member may be graduated and the quantity ...

FLUID FLOW METER

The fluid flow meter includes a flexible membrane clamped between upstream and downstream centering springs to enhance membrane behavior and extend the fluid flow measurement range by automatically adaptively moving the apparent clamping points in response to flow rate. Adaptation of the clamping span alters the relative effective excess membrane length within the clamping span to adapt membrane behavior to flow rate. The upstream centering spring includes a long leaf spring pair cantilevered into the clamping span from the clamping region. The long leaf spring pair is sandwiched within a shorter leaf spring pair active at higher flow rates and formed as part of a guide extending to the chamber surface. The membrane ends are narrowed upstream and downstream of the clamping span to reduce flutter while the upstream intake is split into even laminar flows. The fluid direction is substantially changed at the outlet to minimize membrane distortion.

УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ РАСХОДА ЖИДКОСТИ И ГАЗА С ПОМОЩЬЮ ПЛАВАЮЩЕЙ ГИРИ

Изобретение относится к области приборостроения и может использоваться при решении измерительных задач, в которых необходимо определить расход жидкости и газа с высокой точностью. Технический результат направлен на упрощение конструкции и на повышение точности. Устройство для измерения расхода жидкости и газа с помощью плавающей гири содержит цилиндрическое подвижное тело, помещенное с небольшим зазором в цилиндрическую измерительную камеру с возможностью свободного осевого перемещения между нижней и верхней опорами и имеющее внутренний канал для преобразования направления поступающего из сопла потока измеряемой среды на 90 градусов из осевого в радиально-веерное с соотношением площадей входного и выходного отверстий, обеспечивающим равенство статических давлений на входе и выходе. При этом ось подвижного тела располагается вертикально, поток поступает снизу вверх, положение подвижного тела зависит от соотношения веса подвижного тела и силы, приложенной к нему со стороны потока и зависящей ...

УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ РАСХОДА ЖИДКОСТИ И ГАЗА С ИСПОЛЬЗОВАНИЕМ ПЛАВАЮЩЕЙ ГИРИ

... 1. Устройство для измерения расхода жидкости и газа с помощью плавающей гири, содержащее цилиндрическое подвижное тело с торцевыми металлическими поверхностями, размещающееся с небольшим зазором в измерительной цилиндрической камере с возможностью свободного осевого перемещения и имеющее внутренний канал для преобразования направления поступающего потока измеряемой среды на 90 градусов от осевого на радиально-веерное с соотношением площадей входного и выходного отверстий, обеспечивающего равенство статических давлений в потоке, отличающееся тем, что ось цилиндрического подвижного тела располагается вертикально, в верхней крышке измерительной камеры установлены электроды, включенные в электрическую цепь, содержащую источник питания и прибор регистрации тока, электроды замыкаются через цилиндрическое подвижное тело при перемещении его вверх или размыкаются при перемещении его вниз, значение тока при этом изменяется, а величина расхода в момент изменения тока определяется весом цилиндрического ...

УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ РАСХОДА ЖИДКОСТИ И ГАЗА С ПОМОЩЬЮ ПЛАВАЮЩЕЙ ГИРИ

... 1. Устройство для измерения расхода жидкости и газа с помощью плавающей гири, содержащее цилиндрическое подвижное тело, помещенное с небольшим зазором в цилиндрическую измерительную камеру с возможностью свободного осевого перемещения между нижней и верхней опорами и имеющее внутренний канал для преобразования направления поступающего из сопла потока измеряемой среды на 90° из осевого в радиально-веерное с соотношением площадей входного и выходного отверстий, обеспечивающим равенство статических давлений на входе и выходе, отличающееся тем, что ось подвижного тела располагается вертикально, поток поступает снизу вверх, положение подвижного тела зависит от соотношения веса подвижного тела и силы, приложенной к нему со стороны потока и зависящей от расхода, причем значение расхода определяется точно при равновесном состоянии подвижного тела, когда оно находится между нижней и верхней опорами, и определяется посредством интервальных оценок, когда подвижное тело находится в контакте с нижней ...

FLOWMETER

Membrane for a Fluid Flow Meter

A fluid flow meter has a housing with a fluid inlet and a fluid outlet and defining therebetween a fluid flow path. The flow meter has a flexible membrane having a inlet end mounted at an inlet region of the fluid flow path and a outlet end mounted at an outlet region of the fluid flow path. The flexible membrane produces undulating motion in response to fluid flow in the fluid flow path. Fluid flow rate is measured by sensing the undulating motion of the membrane. Performance of the meter is enhanced by laminating a layer of material to the membrane.

In the sunny joining the hydraulic chambers and clock

MEMBRANE FOR A FLUID FLOW METER

A fluid flow meter has a housing with a fluid inlet and a fluid outlet and defining therebetween a fluid flow path. The flow meter has a flexible membrane having a inlet end mounted at an inlet region of the fluid flow path and a outlet end mounted at an outlet region of the fluid flow path. The flexible membrane produces undulating motion in response to fluid flow in the fluid flow path. Fluid flow rate is measured by sensing the undulating motion of the membrane. Performance of the meter is enhanced by laminating a layer of material to the membrane.

Volumenmessgeraet fuer Schuettgueter

Process of measurement of granular or pulverulent crushed matters

BALING PRESS AGRICULTURAL INCLUDING/UNDERSTANDING OF THE DETECTORS OF THE FLOW OF PRODUCT DERECOLTE

fluid flow meter

BAND TYPE FLOWMETER

PURPOSE: To prevent fatigue failure, by providing a band piece regulating member, which is opened in a V shape in a flow path in the vicinity of a band piece fixing part on the downstream side and comprises a band piece amplitude regulating surface having communicating holes from the fixed part to the walls of a casing. CONSTITUTION: A band piece 2 is enclosed in a casing 1 under the curved state like waves. Both ends of its fixing shafts 2a and 2b are attahced to inner wall 1c and 1d of the casing 1. Both end sides 2c and 2d of the band piece 2 in the longitudinal direction are contacted with the inner walls 1c and 1d of the casing 1. A band piece regulaing member 4 is constituted by assembling flat plates in a grid shape. The member 4 is provided along the entire flow path at the cross section of the axis of the casing 1 in the flow path in the vicinity of the fixing axis 2b on the downstream side. Ten and serveral W several tens of communicating holes 4a are provided in the band piece ...

FLOWMETER

Fluid Flow Meter

DURCHFLUSSMESSER FÜR FLUID.

TORSION-BALANCE TYPE FLOW MEASURING INSTRUMENT AND MEASUREMENT METHOD THEREFOR

A torsion-balance type flow measuring instrument, which comprises a force measuring device and a data processing device. The force measuring device comprises a torsional wire (1), a plane mirror (2), a laser light source (3), a radius gauge (8), a homogeneous sphere (6), a connection rod (5) and a base (16), wherein the torsional wire (1) is installed on the base (16) and rotates around the base (16); the plane mirror (2) is fixed in the middle of the torsional wire (1); the connection rod (5) is fixedly connected to the torsional wire (1); the homogeneous sphere (6) is connected to a lower part of the connection rod (5) to drive the torsional wire (1) and the plane mirror (2) to deflect; a plurality of photosensitive sensors are provided on the radius gauge (8); the plane mirror (2), the radius gauge (8) and the laser light source (3) are located in the same plane; and the photosensitive sensors are used for detecting a laser signal so as to convert the laser signal into an electrical ...

Flowmeters

TRAVELLING WAVE FLOWMETER

Geraet zur laufenden Volumenmessung von Schuettguetern

Improved membrane for a fluid flow meter

Water meter using band type water pressure sensor and water usage information service system using it

Delivery and metering device for granulated and powdered materials

A main screw feeder having a main screw housing set at an incline from the base of a bin. The main screw housing has two outlets, the advanced outlet and the recycle outlet. The advance outlet communicates with a metering screw housing in which twin screws of identical pitch are rotated in synchronous, intermeshed revolution. The delivery outlet for the metering screw housing communicates with the processing stages. The recycle outlet is positioned at an elevation higher than the advance outlet and discharges to the bin. A flow measuring device measures the return flow of granulated or powdered material expelled from the recycle outlet. The flow measuring device projects a prestressed cable into the recycle path of the return flow. A device for measuring any deflection of the cable and fluctuations in the tension thereon produce a signal which is a function of the return flow and which is used to control the speed of the main screw feeder.

Fluid flow meter

FLOWMETER

PURPOSE: To make it possible to measure a small amount of a flow rate by detecting the number of vibrations of a flexible, belt-shaped band piece, which is provided in a bent form in a flow path in a cabinet, and whose both ends are fixed to rods at the upstream and the downstream. CONSTITUTION: A hollow cabinet 1 has a flow path, whose cross section is rectangular. In the cabinet 1, a belt-shaped band piece 2 comprising a thin flexible material such as synthetic resin film is bent and enclosed. Both ends of the band piece 2 are fixed to fixing rods 2a and 2b at the upstream and the downstream. The axial length of the band piece 2 is made longer than the length between the rods 2a and 2b. A vibration number detector 3 is attached to the side wall of the cabinet 1. When the band piece 2 is steadily vibrated and a state 2' is changed to a state 2''' through a state 2", the amount of fluid at a part surrounded by DECB is sent to the downstream side. Therefore, the flow rate can be obtained ...

Fluid flow meter

Improved membrane for a fluid flow meter

A FLUID FLOW METER

FLUID FLOW METER

Membrane for a fluid flow meter

A fluid flow meter has a housing with a fluid inlet and a fluid outlet and defining therebetween a fluid flow path. The flow meter has a flexible membrane having a inlet end mounted at an inlet region of the fluid flow path and a outlet end mounted at an outlet region of the fluid flow path. The flexible membrane produces undulating motion in response to fluid flow in the fluid flow path. Fluid flow rate is measured by sensing the undulating motion of the membrane. Performance of the meter is enhanced by laminating a layer of material to the membrane.

APPARATUS AND METHOD FOR MEASURING DISPLACEMENT OF A DISPLACEMENT SENSOR BY USING RADIOSCOPY AND CHANGING THE DISPLACEMENT INTO A FLOW RATE

PURPOSE: A flow rate measuring apparatus and method using radioscopy are provided to block leakage of a fluid using welding and prevent generation of cross or error in electric signals caused by impurities on electrodes. CONSTITUTION: A flow rate measuring apparatus(1) includes a displacement sensor(3) having displacement according to flux of a target fluid flowing through a pipe(2), a radioscopy(4) for irradiating radioactive rays to the displacement sensor, a radiation sensor(5) for sensing the radioactive rays which have passed through the displacement sensor to detect displacement, a signal input/output and conversion unit for converting the detected displacement into a flow rate, and a monitor(7) for displaying the flow rate. © KIPO 2009 ...

METAL PIPE FLOW METER FOR THE MEASUREMENT OF MICRO FLUX, CAPABLE OF MEASURING MICRO FLUX BY ENLARGED CONTACT AREA OF FLUID

PURPOSE: A metal pipe flow meter for the measurement of micro flux is provided to measure fixed flow rate even in case of unstable pressure since a float functions as a damper. CONSTITUTION: A metal pipe flow meter for the measurement of micro flux comprises a main body(1), a flow pipe(2), a metal tapered pipe(3), a float(4), a stopper pipe(5), a flow rate indicating needle(6), and a scale plate(7). The flow pipe penetrates from one side of the main body to the other side thereof. The metal tapered pipe is inserted into the inlet of the flow pipe and is fixed on the projection of the flow pipe. The float comprises a fluid groove(4a) formed on the central part located within the inlet of the flow pipe. The stopper pipe is installed inside the outlet of the flow pipe. The flow rate indicating needle is projected to open one side of the main body from the other side of the main body at a fixed interval to the flow pipe. COPYRIGHT KIPO 2011 ...

Automatic Amostrador of humid and total precipitation

FLOW RATE MEASURING APPARATUS MAKING FLOW PASSING THROUGH BYPASS AND SENSOR CONDUIT TO BE LAMINATED

PURPOSE: A mass flow rate measuring apparatus is provided to maintain the laminar flow of flow passing through a bypass and a sensor conduit by applying the bypass using a concentric ring shape channel with a plurality of layers as an oil passage. CONSTITUTION: A mass flow rate measuring apparatus includes a flow rate sensor. The flow rate sensor measures the flow rate inside of a pipe. Both sides of a flow rate sensor conduit uses an exit and an entrance of each bypass(400) together. The bypass forms a concentric ring shape channel(410) with a plurality of layers in a lengthwise direction of a pipe and uses the concentric ring shape channel with a plurality of layers as an oil passage. The flow passing through the bypass is in a proportion to the flow passing through the sensor conduit. © KIPO 2007 ...

Fluid flow meter

The fluid flow meter includes a flexible membrane formed of a flexible material and containing an apparatus for providing the membrane with resilience for undulation. The membrane is mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals at least two different locations along the flow path. The membrane flexes so as to permit passage of discrete quanta of fluid, each having a known volume. The flow meter generates electrical signals corresponding to flexure of the membrane, and the electrical signals are monitored for determining a fluid flow rate.

FLUID FLOW METER

DURCHFLUSSMESSER FÜR FLUID.

A FLUID FLOW METER

A fluid flow meter comprising a housing having a pair of fluid port and defining therebetween a fluid flow path (14); a flexible membrane (35) defining a pair of opposing faces and being mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals at at least two different locations along the flow path, the membrane (35) being operative to flex so as to permit passage therepast of discrete quanta of fluid, each having a known volume, apparatus for generating electrical signals corresponding to flexure of the membrane (35); and monitoring apparatus for receiving the electrical signals and thereby determining a fluid flow rate along the flow path.

Fluid flow meter

The fluid flow meter includes a flexible membrane clamped between upstream and downstream centering springs to enhance membrane behavior and extend the fluid flow measurement range by automatically adaptively moving the apparent clamping points in response to flow rate. Adaptation of the clamping span alters the relative effective excess membrane length within the clamping span to adapt membrane behavior to flow rate. The upstream centering spring includes a long leaf spring pair cantilevered into the clamping span from the clamping region. The long leaf spring pair is sandwiched within a shorter leaf spring pair active at higher flow rates and formed as part of a guide extending to the chamber surface. The membrane ends are narrowed upstream and downstream of the clamping span to reduce flutter while the upstream intake is split into even laminar flows. The fluid direction is substantially changed at the outlet to minimize membrane distortion.

Traveling wave flow meter

A traveling wave flow meter having a generally wave shaped member which is fabricated from a flexible material and which is disposed within a channel for conducting fluid. The flexible member undulates in response to a flow of fluid through the channel, and the frequency of the undulating flexible member is a function of the volumetric flow rate of the fluid.

DURCHFLUSSMESSER FÜR FLUIDE

VORRICHTUNG ZUR UEBERWACHUNG VON SPRITZDUESEN

DEVICE AND METHOD FOR MANUFACTURING THE FLOW RATE OF A COMPLEX PARTLY-FILLED-PIPE CAPABLE OF MEASURING FLOW RATE IN A DRAIN PIPE

PURPOSE: Device and method for manufacturing the flow rate of a complex partly-filled-pipe are provided to enable easy installation of an electronic flow-meter and one water level sensor to simultaneously measure flow rate in a PB flume way and in an electronic way. CONSTITUTION: A device for manufacturing the flow rate of a complex partly-filled-pipe comprises a PB flume(10), a pair of water level sensors(20), a flow-speed sensor(22), and a control unit(30). The PB flume consists of an inlet unit, a straw unit(14), and an outlet unit, starting from where fluid flows. The water level sensors are installed on the bottom of the inlet unit. The flow-speed sensor is installed on the crest unit of the straw unit. The control unit receives a detecting signal from the water level sensor and the flow-speed sensor and measures flow rate. Signals related to water levels are input from the water level sensors. COPYRIGHT KIPO 2012 ...

FLUID FLOW METER

The fluid flow meter (10) includes a flexible membrane (35) formed of a flexible material and containing an apparatus for providing the membrane (35) with resilience for undulation. The membrane (35) is mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals (67) at the least two different locations along the flow path. The membrane (35) flexes so as to permit passage of discrete quanta (62a) of fluid, each having a known volume. The flow meter (10) generates electrical signals corresponding to flexure of the membrane (35), and the electrical signals are monitored for determining a fluid flow rate.

Method for measuring non-full flow using multiple sensors

Wave velocity detecting schemes for traveling wave flow meter

In a flow meter of the traveling wave type having a flexible undulating membrane, velocity detecting means is utilized to determine the velocity of propagation of the traveling wave associated with the undulating flexible membrane between at least two known locations on the flexible membrane. The velocity of propagation is proportional to the volumetric flow rate of fluid through the flow meter.

Membrane for a fluid flow meter

A fluid flow meter has a housing with a fluid inlet and a fluid outlet and defining therebetween a fluid flow path. The flow meter has a flexible membrane having a inlet end mounted at an inlet region of the fluid flow path and a outlet end mounted at an outlet region of the fluid flow path. The flexible membrane produces undulating motion in response to fluid flow in the fluid flow path. Fluid flow rate is measured by sensing the undulating motion of the membrane. Performance of the meter is enhanced by laminating a layer of material to the membrane.

Fluid flow meter

A fluid flow meter comprising a housing having a pair of fluid ports and defining therebetween a fluid flow path; a flexible membrane defining a pair of opposing faces and being mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals at at least two different locations along the flow path, the membrane being operative to flex so as to permit passage therepast of discrete quanta of fluid, each having a known volume; apparatus for generating electrical signals corresponding to flexure of the membrane; and monitoring apparatus for receiving the electrical signals and thereby determining a fluid flow rate along the flow path.

Fluid flow measuring device

There is disclosed a fluid meter incorporating a bi-stable resilient member positioned in a housing. Fluid flow into and out of the housing causes the bi-stable member to oscillate in a single oscillatory mode. Since each oscillation of the member is proportional to fluid flow into and out of the housing, a mechanism is provided to count the number of oscillations to provide an indication of fluid flow.

MEASUREMENT AND FLOW REGULATION METER

The device applies to the chemical and food industry and to instrument engineering. It ensures increased precision, flow rate control the with smooth range settings and the possibility to work as a programme regulator and dispenser-distributor of the fluid flow. The device consists of a box (1) with an inlet end-piece (2) and four outlet end-pieces (3,4,5 and 6) to which are connected controllable valves (7,8,9 and 10). In the box (1) are loose- mounted two flexible bands (12 and 13), connected to an indicator body (16), with the possibility to roll the bands along the box axis (1). A partition wall (15) of the box (1), partly covered by one of the flexible bands (13) is penetrable for the fluid flow so that two changeable throttles are formed in its upper and lower parts.

Channel flow measuring device and method thereof

The invention discloses a channel flow meter and a measuring method thereof. The channel flow meter comprises a shell body, a leveling instrument, a protractor, a thin thread, a punching ball and a graph of 'angle-flow velocity' relations. The measuring method comprises the steps of disposing the flow meter on a beam; submerging the punching ball in water; adjusting the leveling instrument to lead the 180 DEG line of the protractor to parallel the horizontal plane; reading the angle between the thin thread and the vertical direction when the punching ball, under the hydraulic force of the channel water flow, reaches a new balance point and keeps invariable; and reverse-checking the graph of 'angle-flow velocity' relations to obtain the velocity of the channel water flow, so as to obtain the channel flow by calculation. The channel flow meter and the measuring method have the advantages of simple structure, convenient operation, precise measurement, small head loss during the measurement ...

FLUID FLOWMETER

PURPOSE: To make a traveling wave flowmeter having a thin flexible film applicable to a compressive fluid, such as the gas. CONSTITUTION: A fluid flowmeter 10 has an enclosure 12 forming a flow chamber 14 and first and second ends 16 and 20 having fluid ports 18 and 22. The ports 18 and 22 respectively work as an inlet and an outlet and the internal arrangement of the flowmeter 10 is determined so that a fluid flow can be directed suitably in any selected direction. The enclosure 12 contains receiving chambers 26 and 27 which receive the fluid flow from the inlet 18 before the fluid flow passes through the chamber 14. The chambers 26 and 27 allow the deposition of waste and moisture. In addition, another quantity of fluid is passed through a thin film 35 and a capacitive flow is determined by the number of such quantities passed through the film 35. The non-flowing edge section 33 of the film 35 approaches a side wall 29 so as to inhibit the leakage of any kind of fluid flowing through ...

MEASURING APPARATUS FOR MOVING AMOUNT OF SNOW COVER ON SLOPE

PURPOSE: To detect the amount of movement electrically and to enable automatic measurement of the amount of movement without relying on a hand, by making a potential meter operate in accordance with the amount of movement of a pressurereceiving plate stretched across a guide member. CONSTITUTION: A base is installed so that the angle of inclination of a guide member 5 is in accord with the angle of inclination of a slanting surface. When the depth of snow cover on the slanting surface reaches a prescribed set value and a contact 23 of a relay of each stopper device 9 is closed, a motor 11 is driven and a stopper pawl 4 is disengaged from a support block 8. As the result, the movement of the pressure-receiving plate 7 is made to depend only on the movement of the snow cover. When the time of melting of the snow comes and the snow cover moves, the plate 7 moves together and makes a potential meter 19 operate through the intermediary of a wire rope 16. The amount of operation of the meter ...

Disposição no conjunto de divisão e vedaçao entre as câmaras hidráulica e de relojoaria

DEVICE FOR MEASURING FLOW RATE

PURPOSE: To simplify a structure by specifically attaching the upper end vicinity of a detecting body to a scaled transparent body integrally provided with a main body which can be freely mounted on and removed from a pipe. CONSTITUTION: An engaging member 8 is screwed into a threaded hole of a main body 7 of a flow rate measuring device 6 which is freely removably provided on a pipe 4, the lower end of a rod-like body 10 which deflects according to a fluid flow rate in the main body 7 is fixed to the member 8, and the vicinity of the upper end of the rod-like body 10 is housed in a scaled transparent body 12 integrally provided with the main body 7. Thus conventional impellers are unnecessary. COPYRIGHT: (C)1991,JPO&Japio ...

METHOD AND DEVICE FOR MEASURING FLOW RATE

PURPOSE: To measure the flow rate of the fluid in a pipe of a greater bore precisely with a simple device by detecting the quantity of deformation of the optical fiber that is provided in the pipe in a flexible state, which is caused by the fluid, from a change of the physical quantity of light. CONSTITUTION: When no gas flows in the pipe 10, that is, when the flow rate is zero, the optical fiber 14 is linear in the pipe as shown by the solid line C since both ends of the fiber are energized outwards by the compression spring in the plugs 12. On the other hand, when a gas of the flow rate V flows in the pipe 10, a force N is applied to the optical fiber 14, the fiber is bent in the pipe as shown by the broken line D. In this case, since the number of time of the reflections of light ray increases in the fiber 14, the transmission drops, the intensity of propagated light which is received by the light receiver 18 is reduced. Accordingly the flow rate of gas that flows in the pipe 10 can ...

Traveling wave flow meter

A traveling wave flow meter having a generally wave shaped member which is fabricated from a flexible material and which is disposed within a channel for conducting fluid. The flexible member undulates in response to a flow of fluid through the channel, and the frequency of the undulating flexible member is a function of the volumetric flow rate of the fluid.

FLUID FLOWMETER

PURPOSE: To improve the property of a fluid flowmeter using a flexible film and highly precisely measure the flow velocity, for example, of a fluid running at low velocity, and also of a fluid running at high velocity by improving the property of the flexible film. CONSTITUTION: This flowmeter comprises a housing 10 having a fluid inlet 14 and a fluid outlet 18 and a fluid flow path between them, a flexible film 28 whose end parts are fixed in the inlet side region and the outlet side region of the fluid flow path and which is so installed as to be pulsed along the work part and formed by layering a flexible material at least partly, and a device to measure the fluid flow rate responding to the pulses of the flexible film 28. COPYRIGHT: (C)1995,JPO ...

Fluid density variation compensation for fluid flow volume measurement

A fluid density compensator for flow volume measurements utilizes a plurality of look-up calibration tables, each for a different density gas. The measurement device provides an output signal having a frequency corresponding to the flow rate therethrough. Each of the tables is indexed by frequency and includes, for each frequency, an expected differential pressure reading across the measurement device and a volume factor. The tables are constructed during the manufacture of the meter measuring device, and are stored in a non-volatile memory of a computer associated with the measuring device. Also associated with the measuring device is a differential pressure sensor across the measuring device. During operation, the output frequency of the measuring device is utilized to index into all of the tables and compare the differential pressure stored in the tables with the actual measured differential pressure. The table having the closest comparison is selected and the volume factor stored in that table is utilized to update the calculated flow volume.

Amostrador automático de precipitação úmida e total

FLOW-METER

Fluid flow measuring device

There is disclosed a fluid meter incorporating a bi-stable resilient member positioned in a housing. Fluid flow into and out of the housing causes the bi-stable member to oscillate in a single oscillatory mode. Since each oscillation of the member is proportional to fluid flow into and out of the housing, a mechanism is provided to count the number of oscillations to provide an indication of fluid flow.

Flowmeters

A flowmeter comprising means (12) for conducting fluid the rate of flow of which is to be measured, flexure means (15) arranged to undulate in response to fluid flow, whereby a travelling wave is propagated along the flexure means, and means (23, 24) for detecting a parameter of the travelling wave which is a function of the rate of flow of the fluid. The parameter of the travelling wave may be the frequency or the velocity of propagation thereof, for example.

Aparelho para medição de vazão por ramal de derivação em paralelo

Fluid flow meter

The fluid flow meter includes a flexible membrane formed of a flexible material and containing an apparatus for providing the membrane with resilience for undulation. The membrane is mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals at least two different locations along the flow path. The membrane flexes so as to permit passage of discrete quanta of fluid, each having a known volume. The flow meter generates electrical signals corresponding to flexure of the membrane, and the electrical signals are monitored for determining a fluid flow rate.

Arrangement in the splitting and fence between the hydraulic chambers and clock

Fluid flow meter

The fluid flow meter includes a flexible membrane clamped between upstream and downstream centering springs to enhance membrane behavior and extend the fluid flow measurement range by automatically adaptively moving the apparent clamping points in response to flow rate. Adaptation of the clamping span alters the relative effective excess membrane length within the clamping span to adapt membrane behavior to flow rate. The upstream centering spring includes a long leaf spring pair cantilevered into the clamping span from the clamping region. The long leaf spring pair is sandwiched within a shorter leaf spring pair active at higher flow rates and formed as part of a guide extending to the chamber surface. The membrane ends are narrowed upstream and downstream of the clamping span to reduce flutter while the upstream intake is split into even laminar flows. The fluid direction is substantially changed at the outlet to minimize membrane distortion. ...

One-way measurable pipeline

The invention discloses a one-way measurable pipeline which structurally comprises a connecting pipe, a moving plate, an adjusting ring and a metering mechanism, the adjusting ring is fixedly embedded in the side face of the moving plate, the moving plate is installed on the side face of the metering mechanism, and the metering mechanism is fixedly embedded in the connecting pipe. Then the throughput is obtained through the flow area and the flow velocity, the rotating speed of the rotating mechanism and the scales on the scale belt are displayed as correct numerical values, then the transfer gear is rotated, the scale belt rotates on the outer side of the rotating shaft, and the throughput displayed on the scales on the scale belt is obtained through the rotating throughput of the liquid to the rotating mechanism; and the connecting disc is manually extruded, meanwhile, the movable block is meshed with the rotating shaft, then the connecting disc is rotated to enable the movable block ...

Apparatus for measuring flow rate for extension leg in parallel

Fluid flow meter

A fluid flow meter comprising a housing having a pair of fluid ports and defining therebetween a fluid flow path; a flexible membrane defining a pair of opposing faces and being mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals at at least two different locations along the flow path, the membrane being operative to flex so as to permit passage therepast of discrete quanta of fluid, each having a known volume; apparatus for generating electrical signals corresponding to flexure of the membrane; and monitoring apparatus for receiving the electrical signals and thereby determining a fluid flow rate along the flow path.

ANEMOMETER

PURPOSE: To obtain a flow rate measuring device which can be operated easily and which permits a reproducible measurement, by providing the device with conductive, elastic members which are expanded and contracted in accordance with a wind speed, and measuring the electric resistance of the elastic members. CONSTITUTION: Four metal wires 4 which are expanded and contracted in accordance with a wind velocity are arranged at regular intervals in a wind tunnel 1 such that the wind tunnel 1 is thereby cross-selectionally divided into five equal parts. Four non-expansible metal wires 8, the diameter of which is somewhat greater than that of the metal wires 4, are arranged in opposition to the metal wires 4. An electric current is applied from a power source 12 to the metal wires 4, 8 to detect voltages, which vary in accordance with electric resistances. The metal wires 4 vary in the electric resistance with the degree of expansion and contraction thereof due to variation in the wind speed and ...

Fluid flow meter

A fluid flow meter comprising a housing having a pair of fluid ports and defining therebetween a fluid flow path; a flexible membrane defining a pair of opposing faces and being mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals at at least two different locations along the flow path, the membrane being operative to flex so as to permit passage therepast of discrete quanta of fluid, each having a known volume; apparatus for generating electrical signals corresponding to flexure of the membrane; and monitoring apparatus for receiving the electrical signals and thereby determining a fluid flow rate along the flow path.

Measurement of broken granular or powdered materials

FLUID FLOW METER

The fluid flow meter (10) includes a flexible membrane (35) formed of a flexible material and containing an apparatus for providing the membrane (35) with resilience for undulation. The membrane (35) is mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals (67) at the least two different locations along the flow path. The membrane (35) flexes so as to permit passage of discrete quanta (62a) of fluid, each having a known volume. The flow meter (10) generates electrical signals corresponding to flexure of the membrane (35), and the electrical signals are monitored for determining a fluid flow rate.

Fluid flow meter

A fluid flow meter comprising a housing having a pair of fluid ports and defining therebetween a fluid flow path; a flexible membrane defining a pair of opposing faces and being mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals at at least two different locations along the flow path, the membrane being operative to flex so as to permit passage therepast of discrete quanta of fluid, each having a known volume; apparatus for generating electrical signals corresponding to flexure of the membrane; and monitoring apparatus for receiving the electrical signals and thereby determining a fluid flow rate along the flow path.

BAND TYPE FLOW METER

PURPOSE: To limit the vibration area of the downstream end part of a band piece and to prevent its fatigue destruction by providing swelling parts in the internal wall of a housing on both sides of the downstream-side fixation part of the band piece. CONSTITUTION: When fluid from an intake 1a is admitted to flow, the wavelength λ2" on the downstream side becomes shorter than the wavelength λ1" as shown by a curve 2" and the part near the fixed shaft 2b of the band piece 2 is swept away to the downstream side; and its waveform tends to swell to the downstream side and it is further flowed to the downstream side beyond the fixed shaft 2b as shown by the curve 2", and inflection is caused at wide angles to cause fatigue, so that destruction occurs finally. For this purpose, the swelling parts 4a and 4b are fixed to the internal wall of the housing 1. The height is 20W30% of the distance between parallel internal walls 1e and 1f and the upstream-side slanting surfaces are set at such positions ...

Wave velocity detecting schemes for traveling wave flow meter

In a flow meter of the traveling wave type having a flexible undulating membrane, velocity detecting means is utilized to determine the velocity of propagation of the traveling wave associated with the undulating flexible membrane between at least two known locations on the flexible membrane. The velocity of propagation is proportional to the volumetric flow rate of fluid through the flow meter.

River flow measurer

Electromagnetic flowmeter and zero point measurement method thereof

An electromagnetic flowmeter for giving a magnetic field to a measurement fluid, detecting an electric signal occurring in the measurement fluid according to the magnetic field, and computing a flow quantity value based on the electric signal includes a zero point measurement section for measuring a zero point of the measurement fluid; a storage section for storing the measured zero point measurement value; a determination section for determining whether or not the difference between the preceding zero point measurement value stored in the storage section and the present zero point measurement value is beyond a predetermined value range; and at least either a transmission section for transmitting the determination result or a display section for displaying the determination result when the determination section determines that the difference is beyond the predetermined value range.

METHOD OF MEASURING LOCAL FLOW RATE OF COOLING WATER IN WATERRCOOLED ENGINE

一种江河测流装置

The river flow measurer consists of upper steel cable, insulator, lower steel cable, lead fish, flow rate and water depth sensor, data output wire, pincerlike electromagnetic inducer, data interface cable and data processing display connected together. It has the advantages of convenient operation, no care for aquatic weed twisting, no care for mud and sand, high sensitivity, high reliability, capacity of deep water data transmission and capacity of depth accumulating method for flow measurement.

FLUID FLOW METER WITH NORMALIZED OUTPUT

A fluid flow meter is described, that includes intermeshing gears that may rotate synchronously. The fluid flow meter may produce a pulsed output that can be normalized to suitable values according to a method of normalizing input pulses generated in response to the rotation of gears. A volume counter can be incremented by an amount equal to a volume per input pulse each time an input pulse is generated. When the volume counter exceeds a first reference volume, a normalized output pulse can be generated until the volume counter exceeds a second reference volume. 1. A fluid flow meter , comprising;a flow chamber;a first gear intermeshing with a second gear, the first gear and the second gear being positioned within the flow chamber, the intermeshing of the first gear and the second gear permitting synchronous rotation of the first gear and the second gear in response to flow of a fluid through the flow chamber;a flow sensor configured to generate a detection signal in response to the passage of fluid through the flow chamber and/or synchronous rotation of the first gear and the second gear; and receive detection signal from the flow sensor,', 'cause the input pulse generator to generate input pulses when detection signal is received from the flow sensor,', 'increment a volume counter by an amount equal to a volume per input pulse each time an input pulse is generated,', 'transition the normalized output pulse generator from a state where the normalized output pulse generator does not generate output pulses to a state where the normalized output pulse generator starts generating a normalized output pulse when the volume counter exceeds a first reference volume, and', 'transition the normalized output pulse generator from a state where the normalized output pulse generator generates a normalized output pulse back to a state where the normalized output pulse generator stops generating the normalized output pulse., 'a controller having an input pulse generator and a ...

Gas sensor and motor vehicle with a gas sensor

In a gas sensor comprising a housing, a membrane and a sensor element, wherein the housing comprises a measuring chamber and an air supply opening, the sensor element is disposed in the measuring chamber and the membrane separates the measuring chamber from the air supply opening, a particularly good air exchange should be achieved. This is accomplished by providing a flow guiding device in the air supply opening of the housing. The flow guiding device here projects into the housing.

FLOW COMPUTING APPARATUS

A flow computing apparatus includes: a first computation controller; a second computation controller; and an access controller, wherein the first computation controller: computes a flow rate of a fluid from sensor data indicating a state of the fluid; and generates transaction information indicating the flow rate of the fluid, the second computation controller computes a management index related to supply of the fluid based on at least a part of the sensor data or index values computed during the computation of the flow rate of the fluid by the first computation controller, and the access controller restricts at least a change in a function of the first computation controller. 1. A flow computing apparatus comprising:a first computation controller that computes a flow rate of a fluid from sensor data indicating a state of the fluid and that generates transaction information indicating the flow rate of the fluid;a second computation controller that computes a management index related to supply of the fluid based on at least a part of the sensor data or index values computed during a computation of the flow rate of the fluid by the first computation controller; andan access controller that restricts at least a change in a function of the first computation controller.2. The flow computing apparatus according to claim 1 , wherein restricts a change in setting information on the computation of the flow rate of the fluid based on an operation of an authenticated user; and', 'restricts a change in a program that causes the first computation controller to execute a process., 'the access controller3. The flow computing apparatus according to claim 2 , further comprising:a door that covers a surface of a housing; andan operating device inside the housing, whereina closure that restricts opening of the door is mountable on the door, andthe access controller permits the change in the program upon detecting an operation on the operating device.4. The flow computing apparatus ...

NON-INVASIVE FLUID FLOW DETECTION USING DIGITAL ACCELEROMETERS

A system for estimating fluid flow in a system including a pump and a fluid vessel operatively coupled to the pump via a conduit is described herein. The system comprises an accelerometer affixed to an exterior surface of the conduit, wherein the accelerometer is configured to generate signals representing physical movement of the conduit, and wherein the signals are suitable for estimating fluid flow in the conduit. 1. A system for estimating fluid flow in a system including a pump and a fluid vessel operatively coupled to the pump via a conduit , comprising:an accelerometer affixed to an exterior surface of the conduit, wherein the accelerometer is configured to generate signals indicative of vibrations imparted to the conduit solely by the pump; andan inferential engine comprising code executed by at least one processor and capable of relationally inferring fluid characteristics of the fluid flow in the conduit from the generated signals indicative of vibrations of the conduit.2. The system of claim 1 , wherein the processing device is configured to one of filter and normalize the accelerometer signals.3. The system of claim 1 , wherein the processing device is configured to determine if a portion of the signals meets at least one predetermined threshold.4. The system of claim 3 , wherein the processing device is configured to count pulses in the portion of the signals meeting the at least one predetermined threshold. This application is a continuation application of Continuation Application No. 15,793,745, entitled NON-INVASIVE FLUID FLOW DETECTION USING DIGITAL ACCELEROMETERS, filed Oct. 25, 2017, which is a continuation application of application Ser. No. 14/951,068, entitled “NON-INVASIVE FLUID FLOW DETECTION USING DIGITAL ACCELEROMETERS”, filed on Nov. 24, 2015, which claims priority to U.S. Provisional Application No. 62/083,765, entitled “NON-INVASIVE FLUID FLOW DETECTION USING DIGITAL ACCELEROMETERS”, filed Nov. 24, 2014, the contents of which is ...

Product Dispensing System

A system for controlling selection and distribution of a product in a product dispensing system. The system includes a user interface for prompting a selection and selecting the product, a machine control processor in communication with the user interface, a power distribution module connected to the machine control processor, and a power supply unit for supplying power to the system through the power distribution module. 1a user interface for prompting a selection and selecting the product;a machine control processor in communication with the user interface;a power distribution module connected to the machine control processor; anda power supply unit for supplying power to the system through the power distribution module.. A system for controlling selection and distribution of a product in a product dispensing system comprising: The present application is a Continuation of U.S. patent application Ser. No. 13/803,434, filed Mar. 14, 2013, now U.S. Pat. No. 10,562,757, issued Feb. 18, 2020 and entitled Product Dispensing System (Attorney Docket No. K34), which is a Continuation-In-Part of U.S. patent application Ser. No. 13/662,102, filed Oct. 26, 2012, now Publication No. US-2013-0292407-A1 and entitled Product Dispensing System (Attorney Docket No. J70), which claims priority to U.S. Provisional Patent Application Ser. No. 61/552,938 filed Oct. 28, 2011 and entitled Product Dispensing System (Attorney Docket No. 182); U.S. Provisional Patent Application Ser. No. 61/560,007 filed Nov. 15, 2011 and entitled Product Dispensing System (Attorney Docket No. J13); and U.S. Provisional Patent Application Ser. No. 61/636,298 filed Apr. 20, 2012 and entitled Product Dispensing System (Attorney Docket No. J39), each of which is hereby incorporated herein by reference in its entirety.U.S. patent application Ser. No. 13/662,102, filed Oct. 26, 2012 and entitled Product Dispensing System (Attorney Docket No. J70), which is also a Continuation-In-Part of U.S. patent application ...

Syringe meter

A syringe meter is provided, including a supply tank, a container with variable capacity, a transmission set, an air supply tube, a liquid outlet tube, and a plurality of valve elements; wherein the container being a bellows tube having two ends sealed; the supply tank having a cyclic tube and a pump connected to bellows tube so that a liquid able to circulate in supply tank and bellows tube; the transmission set being for compressing or pull bellows tube; the air supply tube and the liquid outlet tube being connected to the container; and the plurality of valve elements being disposed at the positions where tubes connected to bellows tube. As such, the capacity of the bellows tube is adjusted for outputting a preset volume, or the transmission set is activated to compress or pull the bellows tube after filling with a liquid to control the output volume.

SYSTEM FOR MEASURING TEMPORALLY RESOLVED THROUGH-FLOW PROCESSES OF FLUIDS

A system for measuring temporally resolved through-flow processes of a fluid. The system includes an inlet, a main line comprising a line section, an outlet fluidically connected with the inlet via the main line, a displacement device arranged in the main line, a circuitous line which branches off the main line between the inlet and the displacement device and to enter the main line between the displacement device and the outlet, a pressure difference transducer arranged in the circuitous line, an evaluation and control unit which controls the displacement device, and a bypass line comprising a pump and a sensor. The bypass line branches off from the main line or from the circuitous line and ends at a same side of the displacement device and the pressure difference transducer to bypass the line section or the circuitous line from which the bypass line branches off. 1. A system for measuring temporally resolved through-flow processes of a fluid , the system comprising:an inlet;an outlet;a bypass line comprising a pump and a sensor connected in series, the sensor being configured to measure a physical property or a chemical property of the fluid; anda through-flow meter arranged between the inlet and the outlet, the through-flow meter comprising a line section,wherein, the line section of the through-flow meter is configured to be passed by the fluid via the bypass line in which the pump and the sensor are connected in series.2. A system for measuring temporally resolved through-flow processes of a fluid , the system comprising:an inlet;a main line comprising a line section;an outlet fluidically connected with the inlet via the main line;a displacement device configured to be driven in and arranged in the main line;a circuitous line which branches off the main line between the inlet and the displacement device and to enter the main line between the displacement device and the outlet;a pressure difference transducer arranged in the circuitous line;an evaluation and ...

Method and System for Shape-Memory Alloy Wire Control

A method for controlling a device using a shape-memory alloy wire is disclosed. The method includes determining an ontime for the shape-memory alloy wire based on a target volume to be pumped by a pump plunger, determining the temperature of the shape-memory alloy wire and adjusting the ontime based on the temperature of the shape-memory alloy wire. 1. A shape-memory alloy wire actuation system comprising:at least one shape-memory alloy wire;a controller for controlling an ontime of the at least one shape-memory alloy wire; anda temperature sensor for determining the temperature of the shape-memory alloy wire, wherein the controller determines the ontime based on the temperature of the shape-memory alloy wire.2. The system of claim 1 , further comprising a valve member connected to the at least one shape-memory alloy wire wherein the shape-memory alloy wire claim 1 , when actuated claim 1 , actuates the valve member.3. The system of claim 2 , further comprising wherein the controller determines the ontime based on the temperature of the shape-memory alloy wire before actuation of the valve member.4. The system of claim 3 , further comprising:a reservoir upstream from the valve member, wherein the valve member controls the flow of fluid from a reservoir to an exit.5. The system of claim 1 , wherein the temperature sensor is a thermistor.6. The system of claim 1 , wherein the temperature sensor is located adjacent to the shape-memory alloy wire.7. The system of claim 4 , further comprising:a volume measurement assembly upstream from the valve member, the volume measurement assembly comprising a volume sensor chamber wherein the fluid from the reservoir enters the volume sensor chamber and wherein the volume measurement assembly determines to volume of fluid in the volume sensor chamber.8. A shape-memory alloy wire pumping system comprising:a pump plunger;at least one shape-memory alloy wire connected to the pump plunger wherein the shape-memory alloy wire, when ...

METERING MACHINE

Metering machine () including a frame () on which are mounted a feed hopper () and a metering sleeve () mounted between an outlet () of the feed hopper () and a discharge pipe (), characterized in that the metering sleeve () includes a radial window () and is rotatable about a longitudinal axis (X) by rotation drive means () adapted to position the metering sleeve () selectively in a first position in which the radial window () faces the outlet () of the feed hopper () and a second position in which the radial window () faces a feed end of the discharge pipe (). 1. A metering machine including a frame on which are mounted a feed hopper and a metering sleeve mounted between an outlet of the feed hopper and a discharge pipe , the metering sleeve receives slidably along a longitudinal axis a suction and discharge piston , the metering machine including means for driving the suction and discharge piston and being characterized in that the metering sleeve includes a radial window and is rotatable about the longitudinal axis by rotation drive means to position the metering sleeve selectively in a first position in which the radial window faces the outlet of the feed hopper and a second position in which the radial window faces a feed end of the discharge pipe.2. The machine according to claim 1 , wherein the suction and discharge piston is mounted on the frame to slide between a working first position in which the suction and discharge piston is in the metering sleeve and a cleaning position in which the suction and discharge piston is disengaged from the metering sleeve.3. The machine according to claim 2 , wherein the metering sleeve includes an abutment disposed so that the suction and discharge piston comes into contact therewith when it goes to the cleaning position.4. The machine according to claim 1 , wherein the metering sleeve is slidably mounted on the frame to move between a working axial position in which the radial window can be pivoted between its first and ...

FLOW METERS, FLOW METER CARTRIDGES, AND RELATED METHODS

A flow meter for measuring a flow rate of a fluid may include a cartridge containing certain components such as a flow sensor. The cartridge is removable from the flow meter such that it may be replaced with a new cartridge, allowing calibration of the flow meter while enabling the flow meter to continue to be operated with another cartridge in the place of the removed cartridge. The flow meter may be configured to direct fluid flow away from selected components of the flow meter. 1. A cartridge for a flow meter , the cartridge comprising:a cartridge housing enclosing a cartridge interior, and configured for removable installation in a mainframe of a flow meter;a fluid inlet configured for conducting fluid from outside the cartridge housing to the cartridge interior;a chamber disposed in the cartridge interior;a chamber inlet communicating with the chamber;a flow sensor disposed in the cartridge interior and configured for measuring fluid flow rate into the chamber; anda fluid outlet,wherein the cartridge defines a flow path through the fluid inlet, through the chamber inlet, to the chamber, and toward the fluid outlet.2. The cartridge of claim 1 , wherein the flow sensor comprises a component selected from the group consisting of:a valve disposed in the cartridge interior and in the flow path between the fluid inlet and the fluid outlet, wherein the valve is switchable between an open state allowing fluid flow through the valve, and a closed state blocking fluid flow through the valve;a chamber wall, wherein the chamber wall and the flow sensor cooperatively enclose the chamber;a displacement transducer; anda combination of two or more of the foregoing.3. The cartridge of claim 1 , comprising a memory claim 1 , or a memory containing flow measurement calibration data claim 1 , disposed in the cartridge interior.4. The cartridge of claim 1 , comprising a first electrical connector configured for removable coupling with a second electrical connector of the mainframe. ...

Diaphragm operated delivery pumps

Cassette for intravenous controller

A cassette provides for a controlled introduction of fluid from a source to a patient. It includes a block and a chamber in the block. Separating means such as a diaphragm are movable in the chamber to define first and second compartments each having a variable volume in accordance with such movement. A transducer is movable with the separating means. The transducer may include a coil disposed on the block and a magnetic rod magnetically coupled to the coil and movable with the separating means to vary the inductance of the coil. Input and output lines are provided in the block. One of the lines in a first pair communicates with the input line and the first compartment and the other line in the first pair communicates with the second compartment and the output line. One of the lines in a second pair communicates with the input line and the second compartment and the other line in the second pair communicates with the first compartment and the output line. Control means provide alternately for a blocking of the second pair of lines and an opening of the first pair of lines and at other times for a blocking of the first pair of lines and an opening of the second pair of lines.

Method and device for flow measurement of oscillating displacement pumps

The method for measurement and monitoring uses as a basis the operating principle of the pump itself, thereby utilising, in particular by means of a microcomputer, the mathematically distinct interrelationship between displacer kinematics and compression or expansion time of the displacer. For this purpose, the compression time or expansion time is measured, in particular by sensors, as the time difference between the rear dead centre position and the front dead centre position of the piston and the coupling pressure peak at the beginning of the delivery operation or induction operation. …<IMAGE>…

Method and device for flow measurement of oscillating displacement pumps

Variable-pulse dynamic fluid flow controller

Product dispensing system

A system for controlling selection and distribution of a product in a product dispensing system. The system includes a user interface for prompting a selection and selecting the product, a machine control processor in communication with the user interface, a power distribution module connected to the machine control processor, and a power supply unit for supplying power to the system through the power distribution module.

Electronically controlled flow meter and flow control system

A novel, low-friction, low-inertia flexible diaphragm containing a magnet formed as an integral part of the diaphragm is mounted in a chamber (preferably cylindrical). The chamber comprises part of the flow meter in a flow control system. One or more sensing devices are mounted on the walls of the chamber to sense the instantaneous position of the diaphragm. A novel electronic control circuit processes the data from the one or more sensing devices to provide measures of the flow rate during the displacement of the diaphragm along the cylinder. Signals are generated by the electronic control circuitry for switching a pair of three-way valves (one valve comprising the input valve and the other valve comprising the output valve) such that during one-half of a cycle the intput valve transfers fluid into the cylinder on one side of the diaphragm and, during the other half of the cycle, transfers fluid into the cylinder on the other side of the diaphragm. The output valve is switched synchronously with the input valve to transmit fluid from the other side or one side of the diaphragm to the output valve. The electronic control system includes means for amplifying the output signals from the one or more sensing devices ("sensors") to provide one or more signals representing the position of the diaphragm as a function of time, means for converting the output signals from these amplifiers to digital form, and computation means for operating on the digitized output signals from the sensing devices to provide control signals for controlling a second input valve thereby to control the flow rate of the fluid being metered to within a desired range.

Liquid meter of controlled volume with improved plunger means

CASSETTE FOR CONTROLS FOR INTRAVENOUS LIQUID TRACING

Volumetric flow measurement method e.g. for medical infusion control

The method involves feeding the fluid to be measured in alternation to a pair of chambers (7,11). The chambers are separated from a measuring cylinder (50) filled with a measuring fluid via an elastic separation medium (6,10). Measuring fluid displacement due to the movement of the separation medium is detected. The fluid to be measured is fed to the alternate chambers under control of a switching valve (17), with detection of the measuring fluid displacement via an inductive sensor (4).

Patent RU2017133266A3

7 ВУ“” 2017133266” АЗ Дата публикации: 22.01.2021 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017133266/28(058689) 25.09.2017 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 10 2016 118 559.0 29.09.2016 РЕ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СПОСОБ ОПРЕДЕЛЕНИЯ ПОТОКА МАССЫ СЫПУЧЕГО МАТЕРИАЛА И УСТРОЙСТВО УПРАВЛЕНИЯ И РЕГУЛИРОВАНИЯ ДЛЯ ОСУЩЕСТВЛЕНИЯ СПОСОБА Заявитель: КЛААС Зельбстфаренде Эрнтемашинен ГмбХ, ОЕ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) СОТЕ 1/20 (2006.01) СОТЕ 1/30 (2006.01) СОТЕ 3/24 (2006.01) АТО 41/127 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) СО1Е 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): ВУРАТЕМТЗ, ОУУРТ, Е-Глбгагу, ЕАРАТТЪУ, ЕВЗСО, Езрасепе боозе, Соое Ржмепб, /- Р1а(Раё, КТРКЪ®, Гех15Мех15, РАТЕМТУСОРЕ, Ра еагсв, Оцез{е]- ...

Flow detect system

본 고안은 유량검출장치에 관한 것으로, 더욱 구체적으로는 액체 또는 기체등의 유체가 배관을 통해 밸브의 관로로 유입될때의 압력과 유출될때의 유체압력차이 및 관로의 유체공급시간을 감지하고 이를 연산처리하여 유량을 정확하게 측정할수 있고 그 구조를 간단하게 구성하여서 된 것이다. The present invention relates to a flow rate detection device, and more specifically, it detects and calculates the pressure when the fluid, such as liquid or gas, flows into the pipe line of the valve through the pipe, and the fluid pressure difference when the pipe flows out and calculates the fluid supply time of the pipe line. The flow rate can be accurately measured by processing, and the structure is simple. 즉, 밸브몸체(10)의 입ㆍ출력단관로(11)에 각각 설치한 압력센서(12)(12')와, 상기 압력센서(12)(12')사이의 관로(11)를 개폐하는 다이어프램(13)과, 다이어프램(13)은 공기압으로 작동되는 피스톤(16)과 결합하고, 피스톤(16)의 연결로드(16a)에 검출소자(18)를 부착하여 감지센서(19)로 감지하는 구성으로 됨을 특징으로 하는 유량검출장치이다. That is, opening and closing the pipeline 11 between the pressure sensors 12 and 12 'installed in the input / output end pipe passage 11 of the valve body 10 and the pressure sensors 12 and 12', respectively. The diaphragm 13 and the diaphragm 13 are coupled to the piston 16 which is operated by pneumatic pressure, and the detection element 18 is attached to the connecting rod 16a of the piston 16 to sense the detection sensor 19. It is a flow rate detection device characterized in that the configuration.

Volumetric measuring device

Improvements to liquid dosing dispensers

Accumulative flow meter for liquid circuits - comprises enclosure divided by wall which is deformed by pressure differences across it

Accumulative flow meter determines the volume of liquid which has flowed during of given interval of time in a liquid circuit, the flowmeter being connected in series with the circuit. A pressure difference is set up between the flowmeter inlet (14) and outlet (16) pipes. The flowmeter comprises an enclosure that can be filled with liquid, and a wall (28) that divides the enclosure into two separate subenclosures. This wall is deformed under the effect of a pressure difference between the two sub-enclosures and actuates a mobile liquid supply valve (56) outside the enclosure.

Volumetric meter for liquids or gases

Patent FR2454086B3

Patent FR2301809B1

Magnetic type water supply meter

내용 없음. No content.

Water meter

Diaphragm water meter

Device for the quantitative measurement of fluid flows

Device for measuring the instantaneous amount of flow of a liquid or gas

Volumetric flowmeter esp. for liquid with abrasive constituents

A movable bellows (14) is fitted in ther inner chamber (13) of a fixed housing (10). One end is connected to one wall (11) of the housing and the free end is connected liquid tight to a base (15). Two pipe lines (18,21) are respectively connected to the two chambers (13,16) so formed, as well as respectively to two outlets (22,23) for the liquid. They are connected across two, three way valves (25) to give two positions so that in each switching position respectively the supply of one chamber is connected to the input line and the discharge of the other chamber is connected to the outlet line. The bellows is fitted at the top wall of the housing suspended so that it can move in a vertical direction. Both chambers are designed with conically tapered bases.

Patent FR2448711B3

Diaphragm enhancements

Diaphragm water meter

Flowmeter for vehicle fuel line - has pressure regulator with pulse counter attached for flow indication

A flowmeter pressure regulator for gaseous or liquid fluids is used to measure fuel flow in motor vehicle. A pulse counter connected to a piston shaft enables flow measurement to be indicated. Fuel flowing in a channel (101) flows via an electrically operated inlet valve (150) to a reference chamber (110) and then to an electrically operated outlet valve (160). Valves are normally open when no power is applied to the terminals (100, 102). Movement of the piston (116) in the reference chamber causes switching (132) of the supply to inlet and outlet valves to allow flow in known quantities measured by a counter on the piston shaft.

Liquid meter

Annular piston-diaphragm liquid meter

Cassette for intravenous controller

CASSETTE FOR INTRAVENOUS CONTROLLER Abstract of the Disclosure . A cassette provides for a controlled introduction of fluid from a source to a patient. It includes a block and a chamber in the block. Separating means such as a diaphragm are movable in the chamber to define first and second compartments each having a variable volume in accordance with such movement. A transducer is movable with the separating means. The transducer may include a coil disposed on the block and a magnetic rod magnetically coupled to the coil and movable with the separating means to vary the inductance of the coil. Input and output lines are provided in the block. One of the lines in a first pair communicates with the input line and the first compartment and the other line in the first pair communicates with the second compartment and the output line. One of the lines in a second pair communicates with the input line and the second compartment and the other line in the second pair communicates with the first compartment and the output line. Control means provide alternately for a blocking of the second pair of lines and an opening of the first pair of lines and at other times for a blocking of the first pair of lines and an opening of the second pair of lines. * * * *

Limiting device for measuring pressurized water flows

Patent DE3636599C2

Improvements to volumetric fluid meters

Apparatus for automatically monitoring the flow of an irregularly flowing-out liquid

The invention relates to an apparatus for automatically measuring the flow of an irregularly flowing-out liquid, e.g. the urine flowing out of a catheter, the liquid amount measured being recordable electronically. At the same time, the discharge hose is guided through a hose pump which is controlled such that the liquid level at a marking in front of the entry to the hose pump is kept constant and the liquid amount which has passed through is measured by counting of the revolutions of the pump. The hose and the liquid sensor may form an exchangeable, disposable unit.

Improvements made to fluid meters

Advanced water meter

Liquid metering device

Patent FR2400694B1

Method for controlling flow of process materials

An apparatus and method for controlling the flow of a process material from a higher pressure environment to a lower pressure environment is provided. Each of a first and second chamber is divided into a product region and a control region by a flexible boundary. Inlet and outlet flow control devices provide fluid communication between each product region and a material input line and a material output line, respectively. A chamber control device is arranged to provide fluid communication between the control region of each chamber, which is filled with a non-compressible fluid. As product fills the product region of one chamber, fluid is displaced from the corresponding control region and into the control region of the other chamber. As the control region of the other chamber expands, product is forced out of the corresponding product region and into the material output line. The product region of each chamber is alternately filled and emptied to produce a continuous transport of material.

VOLUMETRIC FLOW METER, PARTICULARLY FOR LIQUIDS CONTAINING ABRASIVE MATERIALS

Metering device

Apparatus and method for controlling flow of process materials

An apparatus and method for controlling the flow of a process material from a higher pressure environment to a lower pressure environment is provided. Each of a first and second chamber is divided into a product region and a control region by a flexible boundary. Inlet and outlet flow control devices provide fluid communication between each product region and a material input line and a material output line, respectively. A chamber control device is arranged to provide fluid communication between the control region of each chamber, which is filled with a non-compressible fluid. As product fills the product region of one chamber, fluid is displaced from the corresponding control region and into the control region of the other chamber. As the control region of the other chamber expands, product is forced out of the corresponding product region and into the material output line. The product region of each chamber is alternately filled and emptied to produce a continuous transport of material.

Fluid meter

Method and device for measuring the consumption of a flammable liquid

Diaphragm volumetric meter

Cassette for intraveuous controller

Liquid fuel measuring and delivery device

An apparatus and a method for determining a measurement error of a displacement volumetric meter, a meter monitoring device, and a meter measurement error determining device

Various embodiments provide an apparatus for determining a measurement error of a displacement volumetric meter, the meter having bellows which in use expand and contract to transmit a fluid, the apparatus comprising: a transducer operable to detect movement of the bellows and to generate a signal which varies in accordance with the movement of the bellows; and a computing device in communication with the transducer so as to receive the signal therefrom, the computing device being operable to determine a flow rate of fluid through the meter based on the signal, and to determine a measurement error of the meter based on the determined flow rate. A corresponding method, meter monitoring device and meter measurement error determining device are also disclosed.

Fluid detector with two-part housing

The present invention relates to a device (1) for sensing a fluid, such as in a ventilation duct, comprising a sensing element (6), a first housing portion (27) adapted to be arranged outside said object and accommodating the sensing element (6), a supply opening (13) and an outlet opening (37), which openings provide communication between the said first housing portion (27) and the object containing the fluid that is to be sensed. The device (1) further comprises a second housing portion (28), adapted to be arranged outside said object and accommodating electrical connection components, wherein said first and second housing portions (27, 28) are arranged and configured such that they may be connected to each other in geometrically different configurations by use of mechanical fastening means (22) and electrical interconnection means (19, 26).

Method and an apparatus for measuring the flow in oscillating displacement pumps

In a method and apparatus for measuring and monitoring the flow in oscillating displacement pumps, the basis for measurement used is the working principle of the pump itself and, accordingly, the mathematically unambiguous relation between the displacer kinematics and the compression or expansion time of the displacer is utilized, in particular via a microcomputer. For this purpose the compression time and expansion time are measured as the time difference between the back and the front dead point position of the plunger, respectively, and the coupling pressure peak at the beginning of the feeding process and the suction process, respectively, which is effected in particular by sensors.

Method and system for shape-memory alloy wire control

The present application defines a method and corresponding device for controlling an infusion pump using a shape -memory allow wire actuator. The method includes determining an ontime for the shape -memory allow wire based on a target volume to be pumped by a pump plunger and the temperature of the shape -memory alloy wire before the actuation. Thereby adjusting the ontime of the actuator based on the temperature of the shape -memory alloy wire.

METHOD AND DEVICE FOR FLOW MEASUREMENT IN OSCILLATING DISPLACEMENT PUMPS.

The method for measurement and monitoring uses as a basis the operating principle of the pump itself, thereby utilising, in particular by means of a microcomputer, the mathematically distinct interrelationship between displacer kinematics and compression or expansion time of the displacer. For this purpose, the compression time or expansion time is measured, in particular by sensors, as the time difference between the rear dead centre position and the front dead centre position of the piston and the coupling pressure peak at the beginning of the delivery operation or induction operation. <IMAGE>

Fluid operable apparatus

Fluid operable apparatus has diaphragms 12, 14 reciprocable by fluid in respective chambers 16, 18. Respective sets of valves 144A, B, E, F; 144C, D. G. H are operable in response to movements of the second and first diaphragms 14, 12, respectively, to effect changeovers of fluid flow paths to and from the chambers 16, 18, respectively. First and second detents 110, 116 which have respective curvilinear mutually engageable surfaces, are reciprocable by respective diaphragms 12, 14 along paths which intersect one another. The motions of the detents 110, 116 relative to each other are orbits each about the other whereby changeover of the flow paths of either chamber 16, 18 is prevented unless the diaphragm 12, 14 reaches the end of its stroke preceding that changeover. Stops are provided to determine the maximum strokes of the diaphragms 12, 14.

Electronically controlled flow meter and flow control system

Un nouveau diaphragme flexible de faible inertie, de faible frottement (4) contenant un aimant (5) solidaire du diaphragme est monte dans une chambre (12a, 12b) (de preference cylindrique). La chambre comprend une partie du debitmetre dans le systeme de commande de debit. Un ou plusieurs dispositifs de detection (6a, 6b) sont montes sur les parois de la chambre pour detecter la position instantanee du diaphragme. Un nouveau circuit de commande electronique traite les donnees provenant de l'un ou de plusieurs dispositifs de detection pour donner des mesures du debit pendant le deplacement du diaphragme le long du cylindre. Des signaux sont generes par le circuit de commande electronique pour effectuer la commutation d'une paire de vannes a trois voies (une vanne comprenant la vanne d'entree (1) et l'autre vanne comprenant la vanne de sortie (2)) de telle sorte que pendant une moitie d'un cycle la vanne d'entree transfere du fluide dans le cylindre d'un cote du diaphragme et, pendant l'autre moitie du cycle, elle transfere du fluide dans le cylindre dans l'autre cote du diaphragme. La vanne de sortie est commutee de maniere synchrone avec la vanne d'entree pour transmettre du fluide provenant de l'un ou l'autre cote du diaphragme vers la vanne de sortie. Le systeme de commande electronique comprend des moyens pour amplifier les signaux de sortie provenant de l'un ou des differents dispositifs de detection ("capteur") pour produire un ou plusieurs signaux representant la position du diaphragme comme une fonction du temps, des moyens de conversion des signaux de sortie provenant de ces amplificateurs sous forme digitale, et des moyens de calcul pour effectuer des operations sur les signaux de sortie digitaux provenant des dispositifs de detection pour produire des signaux de commande qui commandent une seconde vanne d'entree de maniere a commander le debit du fluide sous controle et le maintenir dans une ...

Improvements to fluid meters

DEVICE TO MEASURE WELL DETERMINED QUANTITIES OF LIQUIDS OR GAS

Improved metering mechanism for liquids

744,552. Dispensing measured quantities of liquids. PINCOTT, J. S., and HEAP, A. R. Aug. 31, 1953, No. 23965/53. Class 106(5) Metering mechanism for liquids consists of a chamber having two metering compartments 10a, 10b, Fig. 1, with an inlet 20a and an outlet 22a connected to each compartment, two spaced flexible diaphragms 12, 12a so arranged that liquid forced into one compartment expels liquid from the other, and valve means 37 arranged to admit liquid under pressure to each of the compartments alternatively and at the same time to release liquid from the other of the compartments. With the valve in the position shown, liquid flows from the inlet 20a to a pipe 15b communicating through ports 13 with the chamber 10b and from the chamber 10a, a pipe 15a and ports 43, 44 to the outlet 22a. When the valve is displaced to the right, the inlet 20a is connected to the pipe 15a via the space between sealing rings 40, 41 and the pipe 15b is connected to the outlet 22a via the space between sealing rings 41, 42. The space between the diaphragm 12a, 12 communicating through a port 32 with a cylinder 30 having a plunger 34 in adjustable screw-threaded engagement with the cylinder. Adjustment of the plunger varies the quantity of liquid between the two diaphragms and hence the capacity of the measuring chambers. The spherical radius of the diaphragms may be less than-that of the measuring chambers so that the diaphragm first contacts the chamber .around its edges to ensure complete discharge of the liquid. Small radial ribs or grooves may also be formed on or in the wall of the diaphragm or the chamber to facilitate discharge.

Patent JPS6015630U

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Pumping and metering apparatus

Patent JPS573892B2

Control device for a displacement pump or displacement measuring chamber

Acoustic displacement flow meter

DEVICE AND METHOD FOR MEASURING THE FLOW OF A LIQUID

Dispositif et procédé de mesure du débit d'un liquide circulant dans un conduit d'écoulement, d'amont en aval, dans lesquels : un organe d'obturation (4) est apte à fermer/ouvrir ledit conduit d'écoulement (3), une membrane déformable (5) obstrue une ouverture (6) aménagée au travers de la paroi dudit conduit d'écoulement et située en amont dudit organe d'obturation, et un dispositif électronique (100) comprend un moyen de détection (101) détectant des déformations de ladite membrane déformable (5), apte à délivrer des signaux de déformation, un moyen (112) commandant ledit organe d'obturation (4), un moyen (112) réalisant des relevés des valeurs d'au moins deux signaux de déformation, séparés par un intervalle de temps prédéterminé, établi lorsque l'électrovanne (4) est fermée, et un moyen de calcul calculant un volume de liquide en fonction des signaux relevés de déformation et pour calculer un débit en fonction dudit volume calculé et de l'intervalle de temps prédéterminé. Device and method for measuring the flow rate of a liquid flowing in a flow conduit, from upstream to downstream, in which: a shutter member (4) is able to close / open said flow conduit (3) , a deformable membrane (5) obstructs an opening (6) arranged through the wall of said flow conduit and located upstream of said obturation member, and an electronic device (100) comprises a detection means (101) detecting deformations of said deformable membrane (5), capable of delivering deformation signals, means (112) controlling said shutter member (4), means (112) taking readings of the values of at least two signals of deformation, separated by a predetermined time interval, established when the solenoid valve (4) is closed, and a calculation means calculating a volume of liquid according to the detected deformation signals and for calculating a flow rate according to said calculated volume and the interval e of predetermined time.

Control device for a positive displacement pump or displacement chamber

An apparatus and a method for determining a measurement error of a displacement volumetric meter, a meter monitoring device, and a meter measurement error determining device

Various embodiments provide an apparatus for determining a measurement error of a displacement volumetric meter, the meter having bellows which in use expand and contract to transmit a fluid, the apparatus comprising: a transducer operable to detect movement of the bellows and to generate a signal which varies in accordance with the movement of the bellows; and a computing device in communication with the transducer so as to receive the signal therefrom, the computing device being operable to determine a flow rate of fluid through the meter based on the signal, and to determine a measurement error of the meter based on the determined flow rate. A corresponding method, meter monitoring device and meter measurement error determining device are also disclosed.

Method for determining flow of bulk material mass and device for controlling and regulating to implement method

FIELD: measuring equipment. SUBSTANCE: proposed invention relates to a method for determining a flow of bulk material mass, in particular grain cultures, directed using infinitely reversible transporting device (30) containing planar transporting elements (58) from below-located area (40) of capturing bulk material to above-located area (42) of unloading bulk material, in which bulk material unloaded from transporting device (30) is deviated in the direction of measuring device (70) by means of guiding surface (66) located in area (42) of unloading bulk material, wherein the mass flow is determined by measuring resultant force (F_G) acting on sensitive surface (68) of measuring device (70). The method provides for compensation of friction force transmitted by bulk material to sensitive surface (68) and impacting on the measurement of resultant force (F_G) by the location of measuring device (70), in which resultant friction force (F_R) acts in the direction perpendicular to the direction of measurement of measuring device (70), as well as determination of slope of measuring device (70) and adjustment of a measured value of resultant force (F_G) taking into account the determined slope. EFFECT: increase in the accuracy of measurement. 11 cl, 4 dwg

Flow meter with acoustic shift

Limiting device for measuring pressurized water flows

Dosing device

Metering device

Device for measuring liquids or gases

Sensor for sensing fluid flow, touch and/or vibration

The sensor 100 comprises a plurality of elongate shaft members 101 movably attached to a distortable surface 102 such that movement of one or more of the plurality of elongate shaft members (which may be substantially rigid or semi rigid) distorts the surface 102a; and means 103 configured to measure distortion of the distortable surface for determining movement of one or more of the plurality of elongate shaft members. In one embodiment the distortion measurement means 103 may be a camera.

Flussometro a controllo elettronico e sistema regolatore di flusso comprendente tale flussometro

Method and system for shape-memory alloy wire control

A method for controlling a device using a shape-memory alloy wire is disclosed. The method includes determining an ontime for the shape-memory alloy wire based on a target volume to be pumped by a pump plunger, determining the temperature of the shape-memory alloy wire and adjusting the ontime based on the temperature of the shape-memory alloy wire.

Manomètre, manomètre différentiel ou débitmètre à membrane

[UNK]

Messgeraet fuer Brennstoff

Metodo e dispositivo per rilevare e misurare microflussi di fluidi

Portable diagnostic analysis of gas meter and electronic corrector

Methods, relate to updating characteristic information for a gas meter operating to measure gas in a gas line. A parameter indicative of performance alegradation of the gas meter is measured using one or more sensors of a portable diagnostic device. A flow rate of gas through the gas meter is determined during measurement using temperature and pressure measured by sensors of the gas meter. Service of the gas meter is not significantly interrupted or stopped during measurement of flow rate determination. A gas meter characteristic is determined based on the measured parameter and determined flow rate. The gas meter characteristic defines a relationship between motion of a flow- responsive element and an error in the volume measured by the gas meter. An electronic coupler connected to the gas meter is updated to use the determined gas meter characteristic.

Fluid control system

A flow meter is disclosed. The flow meter can include a housing that has a cavity. The flow meter can also include a deformable tube that is disposed in the cavity. The deformable tube can comprise a portion of a flow path of a fluid substance. The flow meter can further include a cam that is rotatably coupled to the housing. A portion of the cam is configured to press against a portion of the collapsible tube so as to deform the portion of the collapsible tube. The cam can be configured to rotate in response to a flow of the fluid substance in the flow path.

[UNK]

Pig or sphere detection and signaling device

The present invention refers to a PIG or sphere passage detection and signaling device on a conduit, in order to signal automatically the passage of said PIG or the sphere at a specific point of a conduit. The PIG or sphere passage detection device comprises: a housing (11); a cylindrical body (12) mounted concentrically on said housing and which delimits, by means of a wall (15), an upper cavity (14) and a lower cavity (13); wherein a rod (17) is mounted concentrically to slide into said lower cavity (13) which comprises, on one side, a piston (18) and, on the other side, a driving means (19); and wherein a second rod (21) is mounted concentrically to slide into said upper cavity (14) which comprises, on one side, a rod (31) which extends to a signaling device (30) and, on the other side, a second driving means (22).

Wassermesser

Device for regulating the passage of the gas

Device (1) to regulate the passage of gas, of the type suitable for being completely inserted and housed inside the casing (2) of a single gas meter (3) capable of managing a maximum gas flow rate equal to or greater than 16 m 3 /h, in order to intercept, at least in part, the gas flow at the gas inlet (5) in said meter and/or at the gas outlet (4) in/from said meter, said device comprising: - a connecting element (11) which is provided with an opening configured to be fluidically connectable, preferably sealed, with said gas inlet (5) and/or with said gas outlet (4) in/from said meter (3), and which is also provided with at least two passages (14) fluidically connected, in parallel with each other, to said opening, - at least two valves (12) fluidically arranged in parallel with each other, each of said at least two valves (12) being mounted in correspondence with one of said at least two passages (14) and being provided with an electric actuator (17) configured to cause the opening/closing of the corresponding valve, - an electronic apparatus (20) which is electronically connected with the actuator (17) of each valve (12) to control the movement of said actuator, and therefore the opening/closing of the corresponding valve, said electronic apparatus (20) comprising an electronic control unit (21) which is configured to command and time the opening/closing of said at least two valves (12) and characterized in that: - said connecting element (11) is configured to support said at least two valves (12) in a suspended condition inside the meter (3), and - each of said at least two valves (12) is an interception valve having a passage section of about 250-400 mm 2 .

Flüssigkeitsmesser mit elastischer Scheidewand

Pig or sphere detection and signaling device

The present invention refers to a PIG or sphere passage detection and signaling device on a conduit, in order to signal automatically the passage of said PIG or the sphere at a specific point of a conduit. The PIG or sphere passage detection device comprises: a housing (11); a cylindrical body (12) mounted concentrically on said housing and which delimits, by means of a wall (15), an upper cavity (14) and a lower cavity (13); wherein a rod (17) is mounted concentrically to slide into said lower cavity (13) which comprises, on one side, a piston (18) and, on the other side, a driving means (19); and wherein a second rod (21) is mounted concentrically to slide into said upper cavity (14) which comprises, on one side, a rod (31) which extends to a signaling device (30) and, on the other side, a second driving means (22).