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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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04-07-2017 дата публикации

Сканирующий акустический микроскоп

Номер: RU0000172340U1
Автор: Игорь Владиленович Минин, Олег Владиленович Минин
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный университет геосистем и технологий" (СГУГиТ)

Полезная модель относится метрологии, в частности к микроскопам.Сканирующий акустический микроскоп, содержит передающий акустический элемент, включающий звукопровод, сферическую акустическую линзу, приемный акустический элемент, жидкостную ячейку, установленную между передающим и приемными элементами, а также системы сканирования исследуемого объекта и восстановления его изображения на видеоконтрольном устройстве. В области фокусировки акустической линзы установлена мезоразмерная частица с характерным размером не более поперечного размера области фокусировки и не менее λ/2, где λ - длина волны используемого излучения в среде, со скоростью звука в материале частицы относительно скорости звука в окружающей среде, лежащего в диапазоне от 0.5 до 0.83. Технический результат - повышение разрешающей способности. 1 ил. Ц 1 172340 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) сое за а 5% (13) о а (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ СО1М№ 2906 (2006.01) (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2017112806, 13.04.2017 (24) Дата начала отсчета срока действия патента: 13.04.2017 Дата регистрации: 04.07.2017 Приоритет(ы): (22) Дата подачи заявки: 13.04.2017 (45) Опубликовано: 04.07.2017 Бюл. № 19 Адрес для переписки: 630108, г. Новосибирск, ул. Плахотного, 10, Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный университет геосистем и технологий" (СГУГиТ) (72) Автор(ы): Минин Игорь Владиленович (КО), Минин Олег Владиленович (КО) (73) Патентообладатель(и): Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный университет геосистем и технологий" (СГУГиТ) (КП) (56) Список документов, цитированных в отчете о поиске: $0 832449 АТ, 23.05.1981. Оегек С. ТБотаз, Кепе Г.. Сее, апд К. Меуеп Типеу. А БаПооп 1епз: АсочзИс зсацетиа гот а репега Ме зрБеге // Атегсап ЛТопгпа| оЁ РВуз1сз 77, 197 (2009). Ц 4028933 АТ, 14.06.1977. 9$ 4646573 АЛ, 03.03. ...

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Номер записи: 1
26-01-2012 дата публикации

Applications for real-time mass ratio, mass flow and particle size measurement of particle laden flows

Номер: US20120017699A1
Автор: Alex Van Der Spek, Daniel L. Gysling, Douglas H. Loose
Принадлежит: Cidra Corporated Services LLC

Techniques are provided for monitoring particle laden flows in a pipe, that include receiving signalling containing information about a parameter related to a particle laden flow in a pipe, the parameter including either (a) a sound level propagating through the particle laden flow in the pipe, or (b) a static pressure due to an acceleration of the particle laden flow in the pipe; and determining a measurement of a particle size and either a mass flow rate, or a particle-to-air mass ratio, or both the mass flow rate and the particle-to-air mass ratio, associated with the particle laden flow, based at least partly on a change in the parameter.

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Номер записи: 2
26-01-2012 дата публикации

Sound-Velocity Dewatering System

Номер: US20120017998A1
Автор: Fawaz A. Al-Sahan, Omar Z. Al-Zayed
Принадлежит: Saudi Arabian Oil Co

A method and apparatus for an improved dewatering tank system that allows for safely controlling a water stream exiting the dewatering tank system. The apparatus can include a sound velocity detector, a control system, and a control element. The sound velocity detector can include a transducer, a detector, and a transmitter. The control system can include a computer and a program product. The apparatus can optionally include a dewatering tank, a drain line, and a controllable valve. The apparatus allows for transmitting sound energy through the water stream flowing in the drain lined that is connected to the dewatering tank, calculating the velocity of the sound energy as the sound energy travels through the water stream, monitoring the velocity of the sound energy for a period of time, and controlling the position of the controllable valve depending on the calculated velocity of the sound energy.

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Номер записи: 3
02-02-2012 дата публикации

Alignment tool for use with a wind turbine inspection system and methods of assembling same

Номер: US20120024068A1
Автор: Andre Jonathan Filiatrault, George Rowan Silliman, James Leo Gauthier, Richard John Bever
Принадлежит: Individual

An alignment tool for use in inspecting a ring gear of a gearbox. The ring gear includes an outer surface and a plurality of gear teeth extending radially inwardly from the outer surface. The alignment tool includes a support member that extends between a leading edge and a trailing edge. The support member is removably mountable to the ring gear outer surface such that the leading edge is oriented substantially parallel to a forward surface of the ring gear. A guide member extends outwardly from the support member. The guide member includes a guide edge that is oriented with respect to a centerline of a gear tooth.

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Номер записи: 4
01-03-2012 дата публикации

Low profile encircling ultrasonic probe for the inspection of in-situ piping in immersion mode

Номер: US20120053856A1
Автор: Daniel T. MacLauchlan, Donald W. Morrison, Jr., Todd E. Mitton, William C. Rutherford
Принадлежит: Individual

An ultrasonic probe encircles the perimeter of a target component to be ultrasonically tested and has a base and a pair of jaws pivotally mounted to the base at opposite ends of an arcuate inner surface of the base to encircle a target component with arcuate inner surfaces of the jaws as well. The inner surfaces form a coupling fluid chamber with an outer surface of the target component. Front and rear sets of seals connected to and extending along front and rear portions of the arcuate inner surfaces seal the chamber so that it can retain a coupling fluid such as water. An arcuate set of ultrasonic transducers is connected along at least one but preferably all of the arcuate inner surfaces for transmitting ultrasonic signals to the coupling fluid chamber and into the target component.

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Номер записи: 5
15-03-2012 дата публикации

Test probe as well as family of test probes for the non-destructive testing of a workpiece by means of ultrasonic sound and testing device

Номер: US20120060612A1
Автор: Gerhard Splitt, Wolf-Dietrich Kleinert
Принадлежит: GE Sensing and Inspection Technologies GmbH

The invention relates to a test probe 10 for the non-destructive testing of a workpiece by means of ultrasonic sound. The test probe has an ultrasonic transducer 20 for the generation of an ultrasonic field, which is coupled acoustically to a delay line body 12, which is provided to be attached for a coupling of the ultrasonic field into the workpiece on a surface of the workpiece. Furthermore, the invention relates to a family of test probes as well as to a testing device for the non-destructive testing of a workpiece by means of ultrasonic sound, with a test probe 10, whose ultrasonic transducer 20 has a majority of independently controllable individual oscillators. Furthermore, a control unit 50 is provided, which is equipped to control the individual oscillators of the ultrasonic transducer 20 with phase accuracy in such a way, that a sound field rotationally symmetrical to the central beam is generated. The test probe or the family of test probes and the testing device are suitable in particular for the angular intromission of sound or for a utilization on curved workpiece surface areas.

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Номер записи: 6
15-03-2012 дата публикации

Use of gas void fraction measurement is the closed loop control of a fermentation process

Номер: US20120064507A1
Автор: John Biesak
Принадлежит: Cidra Corporated Services LLC

A technique related to a fermentation process; where a signal processor receives a signal containing information about an amount of entrained air in a mixture forming part of a fermentation process in a tank; and determines a level of foam in the tank based at least partly on the amount of entrained air in the mixture. The signal processor may also provide a control signal for controlling an amount of defoamer (or antiforming agent) added to the mixture in the tank so as to control the production of foam within the tank by controlling the amount of defoamer added to the mixture in the tank.

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Номер записи: 7
15-03-2012 дата публикации

Method for measuring the viscoelastic properties of biological tissue employing an ultrasonic transducer

Номер: US20120065504A1
Автор: Laurent Sandrin, Veronique Miette
Принадлежит: ECHOSENS SA

The present invention relates to a Method of measuring the viscoelastic properties of biological tissues employing an ultrasonic transducer equipped with elements converting the ultrasonic waves reflected by these biological tissues into electrical signals, different elements being grouped to form sub-apertures such that the acquisition of electrical signals from the elements of the same sub-aperture is carried out simultaneously, each of these sub-apertures being intercepted by an ultrasonic wave propagation axis at an acoustic center (Ca). In conformance with the invention, such a method is characterized in that one and the same element belongs to at least two different sub-apertures and in that an acoustic center is surrounded by at least three other unaligned acoustic centers.

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Номер записи: 8
19-04-2012 дата публикации

Self-exciting, self-sensing piezoelectric cantilever sensor for detection of airborne analytes directly in air

Номер: US20120094270A1
Автор: David L. de Lesdernier, David R. Maraldo, Gossett Augustus Campbell, Peter A. Nagy, Rajakkannu Mutharasan
Принадлежит: DREXEL UNIVERSITY

A method for detection of airborne biological agent using a piezoelectric cantilever sensor that includes a piezoelectric layer and a non-piezoelectric layer. A recognition entity is placed on one or both of the two layers. The antibody that recognizes and binds to the airborne species may be chemically immobilized on the cantilever sensor surface. In one embodiment, the cantilever sensor is attached to a base at only one end. In another embodiment, the sensor includes first and second bases and at least one of the piezoelectric layer and the non-piezoelectric layer is affixed to each of the first and second bases to form a piezoelectric cantilever beam sensor. In this embodiment, resonance is measured via stress on the piezoelectric layer and it has been demonstrated that such sensors are robust and exhibit excellent sensing characteristics in gaseous media with sufficient sensitivity to detect airborne species at relatively low concentrations.

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Номер записи: 9
03-05-2012 дата публикации

Multifunction sensor system and method for supervising room conditions

Номер: US20120109536A1
Автор: Biju K. Sreedharan Nair, Peter Dirksen, Willem F. Pasveer
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

The invention refers to a multifunction sensor system and a corresponding method for supervising room conditions, comprising a temperature sensor, a humidity sensor, an ultrasonic transducer for emitting ultrasonic waves and being positioned in a fixed distance to a reflecting fixed reflective surface. For calculating the CO 2 concentration in the supervised room, the time of flight of ultrasonic waves between the transducer and the fixed reflective surface is measured, and the CO 2 concentration is calculated from the output values of the temperature sensor, the humidity sensor and the measured time of flight.

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Номер записи: 10
17-05-2012 дата публикации

Method for determining and/or monitoring at least one physical, process variable of a medium

Номер: US20120119758A1
Автор: Martin Urban
Принадлежит: Endress and Hauser SE and Co KG

A method for determining and/or monitoring at least one physical, process variable of a medium with an oscillatable unit, wherein the oscillatable unit is excited by means of a frequency search sweep within a predetermined frequency band in the working range of the oscillatable unit in the form of transmitted signals successively to oscillate with discrete exciter frequencies wherein the corresponding oscillations of the oscillatable unit are received in the form of received signals, wherein, via the frequency search sweep, the exciter frequency is ascertained, in the case of which the oscillatable unit oscillates with an oscillation frequency, which has a predetermined phase shift between the transmitted signal and the received signal. The transmitting/receiving unit excites the oscillatable unit to oscillate with the ascertained oscillation frequency. The selected points in time depend on the predetermined phase shift between transmitted signal and received signal and that the voltage values sampled at the discrete exciter frequencies of the received signal are evaluated with reference to their amplitude.

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Номер записи: 11
07-06-2012 дата публикации

Apparatus And Method For Non-Intrusive Assessment Of Gas In Packages

Номер: US20120140229A1
Автор: Anders Johnsson, Annika Olsson, Märta LEWANDER, Sune Svanberg
Принадлежит: GasPorOx AB

A method and apparatus are disclosed for assessment of a sealed package. Light is emitted from a narrow-band laser source towards said package from outside of said package. An absorption signal of said light scattered in said package is measured, wherein said absorption is caused by said at least one gas when said light is scattered and travels in said sealed package. Measuring is made outside of said package, whereby said assessment is non-intrusive with regard to said package. It is determined if a deviation exists from a predetermined, expected gas composition and/or concentration of said at least one gas within said sealed package based on said measured absorption signal. Thus sealing of said package for said gas is detected.

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Номер записи: 12
14-06-2012 дата публикации

Acoustic wave element and acoustic wave element sensor

Номер: US20120146457A1
Автор: Hidekazu Nakanishi, Hiroyuki Nakamura, Rei GOTO
Принадлежит: Panasonic Corp

An acoustic wave element includes a piezoelectric body, an input IDT electrode, an output IDT electrode, a propagation path provided between the input IDT electrode and the output IDT electrode, a first dielectric layer provided on the piezoelectric body so as to cover the input IDT electrode and the output IDT electrode, and a reactive portion provided on the propagation path and reacting to a substance to be detected or a binding substance that binds with the substance to be detected. The main acoustic wave becomes, in the input IDT electrode and the output IDT electrode, a boundary acoustic wave that propagates between the piezoelectric body and the first dielectric layer, and becomes, in the propagation path, a surface acoustic wave that propagates on an upper surface of the propagation path. With this structure, deterioration of the element characteristic is suppressed.

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Номер записи: 13
21-06-2012 дата публикации

Nondestructive Test For Flexible Composites

Номер: US20120151989A1
Автор: John Graeme Knox, Tulin K. Markes
Принадлежит: Gates Corp

A method for testing internal differences in reinforced flexible composites including placing a flexible composite on a rigid support structure, tapping the composite with a tapper of predetermined mass, determining a value representative of the impact duration of the tap and/or computing a value representative of the local stiffness of the composite. The composite may be a power transmission belt or portion thereof with tensile cord reinforcement. The method is useful for comparing the degree of penetration of elastomer into the tensile cord, for example in a cast polyurethane toothed belt.

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Номер записи: 14
21-06-2012 дата публикации

Ultrasound probe and ultrasound examination device using the same

Номер: US20120157837A1
Автор: Hiroyuki Furuya, Shinichi Kadowaki, Takayuki Nagata
Принадлежит: Panasonic Corp

An ultrasound probe which is capable of structurally improving resolution is provided. This ultrasound probe includes: an ultrasound probe which transmits ultrasound waves to a subject; and an optical probe which detects, with use of light, the ultrasound waves reflected off internal tissue of the subject, and openings of the ultrasound probe are larger than openings of the optical probe. With this, reflected waves (ultrasound waves) from the subject can be detected by the large openings, so that high resolution can be obtained relative to a width of the transmitted ultrasound waves.

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Номер записи: 15
28-06-2012 дата публикации

Carbon dioxide sensor

Номер: US20120164029A1
Автор: Bogdan Serban, Cornel Cobianu, Mihai N. Mihalia, Octavian Buiu, Viorel Georgel Dumitru
Принадлежит: Honeywell Romania SRL

Chemical sensors such as carbon dioxide sensors and methods for making such sensors are disclosed. An example carbon dioxide sensor may include a substrate, with a sensing beam supported by the substrate. The sensing beam may be configured to resonant. A sensing layer may be disposed on the sensing beam, wherein the sensing layer may include an amino group and is configured to sense carbon dioxide. In some instances, a reference beam may also be supported by the substrate, and may be configured to resonant. A reference layer may be disposed on the reference beam, wherein the reference layer may includes an amino group that has been poisoned so that it will be substantially non-sensitive to carbon dioxide.

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Номер записи: 16
05-07-2012 дата публикации

Early Kick Detection in an Oil and Gas Well

Номер: US20120170406A1
Автор: Daniel Duncan Blue, Rocco DiFoggio
Принадлежит: Baker Hughes Inc

An apparatus, method and compute-readable medium for detecting a gas influx event in a borehole fluid during a drilling operation is disclosed. A measurement of an acoustic velocity of the borehole fluid is obtained at an acoustic sensor disposed in a borehole. A measurement of temperature of the borehole fluid is obtained at a temperature sensor disposed in the borehole. A process compares the measurement of the acoustic velocity of the borehole fluid to the measurement of the temperature of the borehole fluid to detect the gas influx event.

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Номер записи: 17
19-07-2012 дата публикации

Visualization of Tests on Swing Type Check Valve Using Phased Array Sequence Scanning

Номер: US20120180570A1
Автор: Hector Diaz, Jesse R. Delgado
Принадлежит: IHI Southwest Technologies Inc

Computers with proper programs generate signals in phased array sequence. In pulsers with delays, signals are fed through a multiplexor into multiple water wedges attached to a valve being tested. For a sequential operation of the valves from the open to the closed position, ultrasonic signals are transmitted through fluid contained in the valve and reflected back through piezo-electric crystals to the multiplexor. By summation and merger of the signals, an image can be developed of the operation of the valve to determine if the valve is operating properly. By using multiple water wedges and pass visualization software, the operator can see exactly how the valve is functioning, which information can be stored for inspections or maintenance.

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Номер записи: 18
09-08-2012 дата публикации

Analytical method and sensor

Номер: US20120198920A1
Автор: Björn Ingemarsson, Camilla Käck, Julien Saint-Guirons, Kerstin Lundell
Принадлежит: ATTANA AB

There is disclosed an analytical method and a sensor suitable for carrying out the method. More specifically, there is disclosed a method for preparing a mass sensitive chemical sensor capable of detecting binding analyte species to a surface comprising cells.

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Номер записи: 19
09-08-2012 дата публикации

Minimally invasive cytometry system with qcl inspection of single cells for cancer detection

Номер: US20120202277A1
Автор: John Heanue, Matthias Wagner
Принадлежит: 1087 SYSTEMS Inc

This disclosure concerns a minimally invasive cytometry system including a handling system that presents single cells to at least one QCL laser source. The QCL laser source is configured to deliver light to a cell within the cells in order to induce vibrational bond absorption in one or more analytes within the cell. The cytometry system also includes a detection facility that detects the mid-infrared wavelength light transmitted by the cell and identifies the cell as either cancerous or non-cancerous.

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Номер записи: 20
23-08-2012 дата публикации

Two-dimensional virtual array probe for three-dimensional ultrasonic imaging

Номер: US20120210795A1
Автор: Won-Suk OHM, Young-Soo Choi
Принадлежит: ROBOGEN

Provided is a 2-dimensional virtual array probe for 3-dimensional ultrasonic imaging. The probe includes: an ultrasonic transducer; a metallic probe body including an ultrasonic wave emission surface in which a plurality of wave-guides are arranged in 2-dimensional array and a ⅛ sphere-shaped recess for irregularly reflecting ultrasonic wave emitted from the ultrasonic transducer in an inside thereof; a piezoelectric sheet arranged on the ultrasonic wave emission surface to make contact with an object to be inspected and configured to pass the ultrasonic waves emitted from the probe toward the object to be inspected and output a signal by detecting the ultrasonic waves reflected from the object to be detected; and a control unit configured to control the ultrasonic transducer so that the plurality of wave-guides sequentially generate ultrasonic wave.

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Номер записи: 21
23-08-2012 дата публикации

Device, Methods, and Control for Sonic Guidance of Molecules and Other Material Utilizing Time-Reversal Acoustics

Номер: US20120215157A1
Автор: James G. Berryman, Raghu Raghavan
Принадлежит: UNIVERSITY OF CALIFORNIA

The present invention provides for a method of controlling mass movement of fluid material within a field of interest comprising using time reversal acoustic focusing. The time reversal acoustic focusing can be is used for simultaneous spatial and temporal focusing of acoustic energy to control the duration of localization and/or direction of movement of material within tissue or liquid within tissue. Both delivery of material and persistence with respect to target locations can be enhanced by focusing of sonic waveforms or transmissions towards targeted areas in a field of interest, such as within a patient.

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Номер записи: 22
06-09-2012 дата публикации

apparatus and a method for estimating the air humidity within an oven cavity

Номер: US20120225179A1
Автор: Roberto Giordano, Sergey Argudayev, Vladimir Gerasimov
Принадлежит: Electrolux Home Products Corp NV

The present invention relates to an apparatus for estimating the air humidity within an oven cavity ( 14 ) by using ultrasound waves with at least two different frequencies (f 1 , f 2 ). Said apparatus comprises at least one ultrasound transmitter ( 10 ) for generating the ultrasound waves, at least one ultrasound receiver ( 12 ) for receiving the ultrasound waves and at least one phase detecting device for detecting the phase (φ 1 , φ 2 ) of the ultrasound wave at the ultrasound receiver ( 12 ) relative to the same ultrasound wave with the same frequency (f 1 , f 2 ) at the ultrasound transmitter ( 10 ). Said apparatus comprises further at least one evaluation unit for calculating the velocity (V) of the ultrasound waves on the basis of the phases (φ 1 , φ 2 ) and frequencies (f 1 , f 2 ) of the ultrasound waves with the two different frequencies (f 1 , f 2 ), at least one temperature sensor ( 32 ) for detecting the temperature (T) in the oven cavity ( 14 ) and at least one estimation unit for estimating the humidity in the oven cavity ( 14 ) on the basis of the temperature (T) and the velocity (V) of the ultrasound waves. Further, the present invention relates to a corresponding method for estimating the air humidity within an oven cavity ( 14 ).

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Номер записи: 23
13-09-2012 дата публикации

Multi-probe rail scanning/encoder system and certified method of use thereof

Номер: US20120227502A1
Автор: John A. PIELLI, Kenneth GAGLIONE
Принадлежит: National Railroad Passenger Corp

A rail scanning system and certified method of use thereof are described. The rail scanning system comprises a control unit, a probe carriage, and an encoder. The probe carriage comprises two or more phased array probes. The control unit is communicatively coupled with the encoder and phased array probes of the probe carriage.

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Номер записи: 24
27-09-2012 дата публикации

Subject information acquisition apparatus and subject information acquisition method

Номер: US20120243369A1
Автор: Kazuhiko Fukutani, Takao Nakajima, Yoshiaki Sudo, Yoshitaka Baba
Принадлежит: Canon Inc

A subject information acquisition apparatus includes: an acoustic wave detector which detects an acoustic wave which is generated from a subject by irradiating light and outputs a detection signal; an amplifier which amplifies the detection signal which is output from the acoustic wave detector; a gain control unit which changes a gain of the amplifier as time elapses, according to a gain control table, in order to correct a drop in intensity of the acoustic wave caused by attenuation of fluence inside the subject; and a signal processing unit which obtains information inside the subject based on the signal amplified by the amplifier. Measurement under a plurality of measurement conditions, where at least fluence distribution inside the subject or a position of the acoustic wave detector differs, is possible, and the gain control unit changes the gain control table according to the measurement conditions.

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Номер записи: 25
04-10-2012 дата публикации

Blood coagulation time determination method and apparatus

Номер: US20120252043A1
Автор: Frank K. Gehring
Принадлежит: Andreas Hettich GmbH and Co KG

The invention relates to a method for determining the coagulation time of a sample fluid containing blood components by means of a resonator whose vibration parameters are measured and then used as a basis for determining the sample fluid viscosity change, which resonator has an at least partially adhesive surface contacting said sample fluid. The invention is characterized by preincubation of said surface with a preincubation fluid containing blood components, which preincubation fluid has a known way of interacting with the coagulation system, thus resulting in anchoring sites to be formed on the adhesive areas of said surface.

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Номер записи: 26
11-10-2012 дата публикации

Apparatus and methods for testing of acoustic devices and systems

Номер: US20120256646A1
Автор: G. Wayne Moore, James Gessert, James Ginther, John Timms
Принадлежит: Unisyn Medical Technologies Inc

Methods and devices are disclosed for testing an acoustic probe having transducing elements for converting between acoustic and electrical signals. An electrical signal is generated at a frequency with a testing device capable of generating electrical signals over a range of frequencies. The electrical signal is transmitted to at least some of the transducing elements to measure a complex impedance and thereby evaluate a performance of the transducing elements.

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Номер записи: 27
11-10-2012 дата публикации

Acoustic wave (aw) sensing devices using live cells

Номер: US20120258444A1
Автор: Abiche H. Dewilde, Gang Wang, Hongwei Sun, Jianping Zhang, Joel M. Therrien, Kenneth A. Marx, Lian Dai, Malavika Vashist, Sai Liu, Susan J. Braunhut
Принадлежит: University of Massachusetts UMass

In one embodiment according to the invention, there is provided a method of sensing a response of a living cell or virus to a change in conditions. The method comprises applying an essentially constant external electromotive force that causes oscillation of an acoustic wave device at essentially constant amplitude and frequency under steady state conditions. The acoustic wave device has attached at least one living cell or virus. A combined oscillating system including the acoustic wave device and the living cell or virus exhibits a fundamental frequency and at least one harmonic frequency of the combined oscillating system. The living cell or virus is exposed to a change in an environmental condition while oscillating the combined oscillating system under the essentially constant external electromotive force, whereby a response of the living cell or virus to the change in environmental condition will be indicated by a change in at least one of frequency and amplitude of the oscillation of at least one harmonic frequency of the combined oscillating system.

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Номер записи: 28
25-10-2012 дата публикации

Hybrid Separation and Detection Device for Chemical Detection and Analysis

Номер: US20120270330A1
Автор: Erica Forzani, Francis Tsow, Nongjian Tao, Rodrigo A Iglesias
Принадлежит: Arizona Board of Regents of ASU

The present invention provides a device that makes it possible to perform real-time detection and analysis of BTEX components in real samples using an inexpensive and miniaturized hybrid specific binding-separation device. The device may be used in occupational health and safety applications as well as for toxicological population studies to determine the presence of organic volatile components in an air sample.

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Номер записи: 29
01-11-2012 дата публикации

Section-illumination photoacoustic microscopy with ultrasonic array detection

Номер: US20120275262A1
Автор: Konstantin Maslov, Liang Song, Lihong Wang
Принадлежит: Washington University in St Louis WUSTL

Imaging systems, probes for imaging systems, and methods for noninvasive imaging are disclosed. In one example, a probe for use with an imaging system includes a slit configured to spatially filter a light beam from a light source. The probe includes a focusing device configured to cylindrically focus the spatially filtered light beam into an object, and an ultrasound transducer array configured to detect a photoacoustic signal emitted by the object in response to the cylindrically focused light beam.

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Номер записи: 30
15-11-2012 дата публикации

Unpowered wireless sensor systems and methods

Номер: US20120286935A1
Автор: Haiying Huang
Принадлежит: University of Texas System

Devices, methods, and systems for wireless transmission of data from unpowered sensor nodes are presented. An unpowered sensor node includes a sensor, a first antenna for receiving an interrogation signal from a remote source, an up-converting frequency mixer, and a second antenna for transmitting a modulated output signal. A remote sensor interrogation unit generates and transmits the interrogation signal; then receives and demodulates the modulated output signal from the sensor nodes. Any type of sensor that generates an oscillatory signal can operate without a local power source. For a sensor that generates a non-oscillatory signal, the sensor node includes a low-power signal conditioning unit to convert the signal to an oscillatory signal. The sensor node may include an energy harvester such as a photocell to power the signal conditioning unit. A low-cost network of unpowered sensor nodes may be interrogated by a single interrogation unit using a multiplexing scheme.

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Номер записи: 31
06-12-2012 дата публикации

Estimation of presence of void in through silicon via (tsv) based on ultrasound scanning

Номер: US20120304773A1
Автор: Akihiro Horibe, Fumiaki Yamada
Принадлежит: International Business Machines Corp

A method and apparatus to detect a defect in a three-dimensional integrated structure by ultrasound scanning and to non-destructively detect the presence of a void that can occur in a process in a through silicon via (TSV) arranged in a board, such as a silicon wafer. To avoid measurement by ultrasound scanning over a board surface from being impeded by an object, such as a (solder) bump, scattering ultrasound, one or more TSVs belonging to a test element group (TEG) are selected from among a plurality of TSVs such that physical obstruction in the vicinity of the TEG.

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Номер записи: 32
20-12-2012 дата публикации

Systems and methods for providing temperature compensation in structural health monitoring

Номер: US20120323517A1
Автор: Lawrence E. Pado
Принадлежит: Boeing Co

A method for compensating for environment induced variations in structural health monitoring data is described. The method includes imparting a vibration onto a structure first location, the structure at a first temperature, receiving a comparison signal resulting from the vibration at a second location, accessing data representing a reference signal previously received at the second location, based on vibration at the first location, the reference signal received when the structure was at a second temperature, dividing the signals across multiple time windows, performing a cross correlation between the signals in each window to maximally correlate the signals within each window, performing a weighted regression on time to estimate time shift, the weights based on reference signal energy in each window, to determine a relationship between time and time shift, and using the relationship between time and time shift of the comparison signal to reduce the effects of environment on the comparison signal.

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Номер записи: 33
27-12-2012 дата публикации

Automated Ultrasonic Elasticity Image Formation with Quality Measure

Номер: US20120330155A1
Автор: Amy Marie Sommer, Jingfeng Jiang, Timothy Jon Hall
Принадлежит: Individual

Image data and E-mode images used in ultrasonic elasticity imaging may be automatically evaluated for quality to provide a single value used as operator feedback or for automatic selection of images for averaging or animation.

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Номер записи: 34
27-12-2012 дата публикации

Thermal acoustic imaging methods, systems, and apparatus for detecting defects in an object

Номер: US20120330569A1
Автор: Frederick William Vensel, Robert Hogan, Surendra Singh
Принадлежит: Honeywell International Inc

In accordance with the disclosed embodiments, Thermal Acoustic Imaging (TAI) methods, systems and apparatus are provided for detecting defects in an object being inspected.

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Номер записи: 35
27-12-2012 дата публикации

Structural damage index mapping system and method

Номер: US20120330570A1
Автор: Jindrich Finda, Karel Adámek, Radek Hedl
Принадлежит: Honeywell International Inc

A system and method for detecting and evaluating structural defects are provided. Baseline data representative of sensed ultrasonic waves that were transmitting into a structure with no defects are stored. Ultrasonic waves are transmitted into the structure from a plurality of actuators that are coupled to the structure. The ultrasonic waves that are transmitted into the structure from the plurality of actuators are sensed, with a plurality of sensors that are coupled to the structure and spaced apart from the actuators, to thereby generate and supply sensor data. Signal difference coefficients are calculated from the baseline data and the sensor data. The calculated signal difference coefficients are spatially mapped to detect one or more structural defects in the structure.

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Номер записи: 36
03-01-2013 дата публикации

Inspection System And Methods For Integral Seals

Номер: US20130000407A1
Автор: Colm Flannery, DONG Fei, Douglas Rebinsky
Принадлежит: Caterpillar Inc

An inspection system for integral seals includes an ultrasonic transducer configured to ultrasonically scan an integral seal having a rubber sealing member attached to a seal carrier, and a transducer positioning mechanism defining a plurality of translational degrees of freedom and a rotational degree of freedom. An electronic control unit is coupled with the ultrasonic transducer, and may be configured to store data indicative of a defect in the integral seal responsive to a reflection pattern defined by ultrasound reflected by the rubber sealing member and the seal carrier. Related methodology is also disclosed.

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Номер записи: 37
03-01-2013 дата публикации

Method for estimating an underwater acoustic sound velocity in a network of acoustic nodes, corresponding computer program product, storage means and device

Номер: US20130003498A1
Автор: Christophe L'her, Dominique Barbot
Принадлежит: Sercel SAS

A method for estimating an underwater acoustic sound velocity in a network of acoustic nodes arranged along towed acoustic linear antennas and in which a plurality of acoustic signals are transmitted between the nodes. The method includes: obtaining two predetermined distances each separating a couple of nodes placed along a same first acoustic linear antenna ( 31 ); for each couple of first and second nodes, obtaining a first propagation duration of an acoustic signal transmitted between said first node and a third node placed along a second acoustic linear antenna and a second propagation duration of an acoustic signal transmitted between said second node and said third node; and estimating said underwater acoustic sound velocity, as a function of said two predetermined distances and said first and second propagation durations obtained for each couple of nodes.

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Номер записи: 38
24-01-2013 дата публикации

Multi-part mounting device for an ultrasonic transducer

Номер: US20130019702A1
Автор: Jochen Zilz, Judith Duerscheid, Marek Parusel, Willi Warkowski, York Oberdoerfer
Принадлежит: GE Sensing and Inspection Technologies GmbH

A multi-part mounting device for an ultrasonic transducer, the mounting device comprising a first part configured to mount the mounting device on a housing of an ultrasonic test probe, and a second part configured to retain the ultrasonic transducer, wherein the second part is at least in touching contact with the ultrasonic transducer, wherein the second part comprises a first plastic and is connected by positive fit to the first part, and wherein the first part has a greater hardness than the second part.

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Номер записи: 39
31-01-2013 дата публикации

Bi-stable oscillator

Номер: US20130029350A1
Автор: Alexander Sleptsov, Matthew Cooper, Richard John Hammond
Принадлежит: Alere Switzerland GmbH

In accordance with the present invention there is provided a bi-stable oscillator circuit for detecting a load imparted to a surface. The bi-stable oscillator comprises an electrical amplifier, at least one resonator comprising an electrical transducer having a resonant frequency, a surface of the resonator forming the surface on which the load is to be detected and an impedance network having a resonant frequency. The resonator is arranged to be exposed to an environment under test, and the resonator and the impedance network are connected in parallel with the electrical amplifier such that when a load imparted to the surface exceeds a pre-determined threshold value the oscillator circuit oscillates at the resonant frequency of the impedance network and when a load imparted to the surface is less than the threshold value the oscillator circuit oscillates at the resonant frequency of the resonator, switching of the circuit oscillation frequency being indicative of the load crossing the predetermined threshold value.

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Номер записи: 40
07-02-2013 дата публикации

Method for Detecting Gas and a Gas Detector Therefor

Номер: US20130031956A1
Автор: Vasile Mecea
Принадлежит: G&M NORDEN AB

It is presented a method for detecting a gas (G). Acoustic waves (W t ) are generated and transmitted via a wave generating and sensing means ( 2 ) towards a reflecting wall ( 3 ) and thereafter reflected acoustic waves (W t ) are detected by the wave generating and sensing means ( 2 ) wherein a presence of the gas (G) is detected by determining a change in an output signal of the wave generating and sensing means ( 2 ). A gas detector ( 1 ) is also presented.

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Номер записи: 41
21-02-2013 дата публикации

Cavity enhanced laser based isotopic gas analyzer

Номер: US20130044314A1
Автор: Alexander Kachanov, Serguei Koulikov
Принадлежит: Li Cor Inc

Systems and methods for measuring the isotope ratio of one or more trace gases and/or components of gas mixtures such as different gas species present in a gas mixture. The system includes a resonant optical cavity having two or more mirrors and containing a gas, the cavity having a free spectral range that equals the difference between frequencies of two measured absorption lines of different gas species in the gas, or of two different isotopes, divided onto an integer number. The system includes a continuous-wave tunable laser optically coupled with the resonant optical cavity and a detector system for measuring an absorption of laser light by the gas in the cavity. The detector system includes a photo-detector to measure an intensity of the intra-cavity light, or both a photo-acoustic sensor to measure photo-acoustic waves generated in the cavity and a photo-detector to measure an intensity of the intra-cavity light.

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Номер записи: 42
21-03-2013 дата публикации

Pseudorandom binary sequence apparatus and method for in-line inspection tool

Номер: US20130068028A1
Автор: Philip M. Hoyt
Принадлежит: Pure Technologies Ltd

An in-line inspection tool is disclosed for inspecting the wall of a pipeline while traveling therethrough. The in-line inspection tool may include a transmitter, a signal generator, one or more receivers, and a decoder. The signal generator may generate a pseudorandom signal, generate an inspection signal, and drive the transmitter with a convolution of the pseudorandom signal and the inspection signal. The transmitter may transmit the convoluted signal to the wall of the pipeline. One or more receivers may receive from the wall of the pipeline a received signal comprising at least one of the convoluted signal and a reflection of the convoluted signal. The decoder may identify the inspection signal within the received signal by cross correlating the received signal and the pseudorandom signal.

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Номер записи: 43
04-04-2013 дата публикации

Method and apparatus for ultrasonic testing

Номер: US20130081468A1
Автор: Roman Koch, Stephan Falter
Принадлежит: General Electric Co

A method for ultrasonic testing of an object, the method comprising ultrasonic scanning of a plurality of scan regions of the object; converting ultrasonic echoes of the ultrasonic scanning into a plurality of electrical signals; gating the electrical signals to provide gated signals; and wherein different gating times are used for the electrical signals.

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Номер записи: 44
04-04-2013 дата публикации

Array for sensing and inducing strain in an adhesively bonded joint including magnetostrictive material

Номер: US20130081475A1
Автор: Gary E. Georgeson, Robert J. Miller
Принадлежит: Boeing Co

Sensing strain in an adhesively bonded joint includes inducing a strain wave in the joint, and sensing a change in local magnetic characteristics in the joint.

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Номер записи: 45
02-05-2013 дата публикации

Ultrasonic Particle Measuring System

Номер: US20130104657A1
Автор: Beat Kissling, Thomas Frohlich, Wolfgang Drahm, Yaoying Lin
Принадлежит: Endress and Hauser Flowtec AG

An ultrasonic particle measuring system having an ultrasonic transducer with at least one ultrasonic transducer element and at least one coupling element, wherein, during operation, acoustic signals are transmittable and receivable by the ultrasonic transducer element via the coupling element, wherein the coupling element is embodied as an acoustic lens, and the ultrasonic, particle measuring system has an evaluation unit suitable for amplitude analysis of reflection signals of acoustic signals reflected from particles to the ultrasonic transducer, and wherein, with the evaluation unit, amplitudes of reflection signals in a predetermined time interval are countable, which are greater than a predetermined threshold value.

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Номер записи: 46
09-05-2013 дата публикации

Method and device for non-destructive material testing by means of ultrasound

Номер: US20130111999A1
Автор: Gerd Dobmann, Gerhard Hubschen, Jochen Kurz
Принадлежит: Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV

A method is described for non-destructive material testing on a workpiece comprising an electrically conductive material using EMUS transducers, each of which has a magnet unit for locally introducing a magnetic field into the workpiece, and also has a radio frequency (RF) coil arrangement, which interacts with the magnetic field. The invention is distinguished in that at least two transcuers are spaced apart along a surface of the workpiece. At least a first EMUS transducer generates and also measures ultrasound waves within the workpiece and the second EMUS transducer functions as a reception transducer for at least detecting ultrasound waves.

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Номер записи: 47
16-05-2013 дата публикации

Ultrasonic Non-Destructive Testing

Номер: US20130118260A1
Автор: Frederick Bert Cegla, Peter Cawley
Принадлежит: IMPERIAL INNOVATIONS LTD

An apparatus and method for ultrasonic non-destructive testing provides an elongate strip of ultrasound transmissive material coupled at a proximal end to an object under test. The elongate strip has a transverse cross-section with a width and thickness giving an aspect ratio greater than unity and matched to the ultrasonic transducer such that excitation induces a substantially non-dispersive ultrasonic signal to propagate along the elongate strip to the proximal end and to enter the object under test. These non-dispersive pulses are particularly suited for time-of-flight measurements, thickness measurements, crack measurements and the like. The elongate strip helps to separate the transducer from a potentially hostile environment associated with the object under test. The elongate strip also has a large area of contact with the object under test allowing efficient transmission of energy into the object under test.

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Номер записи: 48
16-05-2013 дата публикации

Nuclear Reactor Vibration Monitoring Apparatus and Method of Monitoring Nuclear Reactor Vibration

Номер: US20130121451A1
Автор: Atsushi Baba, Masahiro HIRATSUKA, Masahiro Koike, Minoru Ootaka, Taro IKEZUMI
Принадлежит: Hitachi GE Nuclear Energy Ltd

Vibration of a jet pump installed in a reactor pressure vessel of a boiling water reactor is monitored. Ultrasonic waves are transmitted from an ultrasonic sensor installed on an outer surface of the reactor pressure vessel toward a throat and a diffuser of the jet pump. When the ultrasonic waves reach respective outer surfaces of the throat and diffuser, reflected waves are generated at the respective outer surfaces. The ultrasonic sensor receives those reflected waves. The ultrasonic signal process section obtains a distance in the horizontal direction between the throat and the diffuser based on a time difference of the reflected waves reflected from respective reflection surfaces of the throat and diffuser and a sound speed in reactor water in the neighborhood of the throat and diffuser. A relative vibration is obtained based on the change with time of the distance.

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Номер записи: 49
27-06-2013 дата публикации

Acoustic Emission Toughness Testing For PDC, PCBN, Or Other Hard Or Superhard Material Inserts

Номер: US20130166214A1
Автор: Federico Bellin
Принадлежит: Varel International Industries LP

An acoustic emissions testing device includes a test cutter including a first surface, an acoustic sensor, an indenter coupled to the first surface, and a load. The load is exerted on the indenter, which transfers the load to the first surface. The acoustic sensor is communicably coupled to the test cutter and detects one or more acoustic events occurring therein. An acoustic emissions testing system includes a data recorder coupled to the testing device. The data recorder records the data from testing device. Based upon the data received, the toughness of the test cutter is objectively determined and can be ranked comparatively to the toughness of other test cutters. The load is ramped up to a peak load, held for a period of time, and then ramped down. Cutters from the same cutter type as the test cutters have similar toughness.

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Номер записи: 50
04-07-2013 дата публикации

Apparatus and method for non-destructive testing using ultrasonic phased array

Номер: US20130167646A1
Автор: Allen Porter, Caleb Frederick
Принадлежит: Individual

The present invention is related generally to the field of non-destructive materials testing using ultrasonic devices, more particularly, ultrasonic devices in a phased array and includes a wedge for conducting pitch-catch ultrasonic phase array testing of materials wherein the wedge includes a liquid column and is manufactured with specific angles so as to control the angle at which the ultrasonic waves pass into the wedge and then are refracted when passing from the liquid in the liquid column into the material being analyzed, thus providing a wider range of analysis via sweeping the beams from the wedge than was possible with known wedges.

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Номер записи: 51
04-07-2013 дата публикации

Concurrent Multiple Characteristic Ultrasonic Inspection

Номер: US20130167647A1
Автор: Johannah Itescu, Mark Samuel Bailey, Matthew Foister
Принадлежит: General Electric Co

A method for acoustically measuring an external surface of a component and a wall thickness or component thickness at that location is provided. The method also provides for measuring the external surface by physical contact while concurrently acoustically measuring a wall thickness at that location.

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Номер записи: 52
01-08-2013 дата публикации

Ultrasonic probe and inspection apparatus equipped with the ultrasonic probe

Номер: US20130197345A1
Автор: Katsumi Nakagawa, Kazuhiko Fukutani, Kenichi Nagae, Yasufumi Asao
Принадлежит: Canon Inc

An ultrasonic probe includes a light irradiating portion configured to radiate light for generating ultrasonic waves from a light absorber, an ultrasonic transducing portion configured to transduce the ultrasonic waves to an electric signal, and a light guide member configured to introduce light from a light source to the light irradiating portion. A light irradiating region of the light irradiating portion is included within an ultrasonic receiving region of the ultrasonic transducing portion.

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Номер записи: 53
15-08-2013 дата публикации

Photoacoustic measuring device and method

Номер: US20130205903A1
Автор: Kenji Oyama
Принадлежит: Canon Inc

The present invention provides a photoacoustic measuring device and a method by which the presence of an object can be easily identifyied in a relatively short time in photoacoustic measurement while holding an object by a holding plate. The photoacoustic measuring device has a irradiating unit with which the object is irradiated with light, a holding unit holding the object by the holding plate, a detecting unit detecting the photoacoustic wave generated by irradiating light and an analyzing unit analyzing photoacoustic signal of the photoacoustic wave. The analyzing unit analyzes a photoacoustic signal to acquire information concerning change of a signal intensity of a component of the photoacoustic signal of produced in an interface between the detecting unit and the holding plate and an interface between the holding plate and the object, to identify the presence of the object.

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Номер записи: 54
15-08-2013 дата публикации

Detecting broadside and directional acoustic signals with a fiber optical distributed acoustic sensing (das) assembly

Номер: US20130211726A1
Автор: Jeffery Joseph Mestayer, Peter Berkeley Wills
Принадлежит: Individual

A Distributed Acoustic Sensing (DAS) fiber optical assembly comprises adjacent lengths of optical fiber A, B with different directional acoustic sensitivities, for example by providing the first length of optical fiber A with a first coating 35, such as acrylate, and the second length of optical fiber B with a second coating 36 , such as copper, wherein the first and second coatings 35 and 36 may be selected such that the Poisson's ratio of the first length of coated fiber A is different from the Poisson's ratio of the second length of coated fiber B. The different Poisson's ratios and/or other properties of the adjacent lengths of optical fiber A and B improve their directional acoustic sensitivity and their ability to detect broadside (radial) acoustic waves.

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Номер записи: 55
05-09-2013 дата публикации

Oblique flaw detection using ultrasonic transducers

Номер: US20130228014A1
Автор: John Venczel
Принадлежит: Magnetic Analysis Corp

Ultrasonic transducers and methods for detecting oblique flaws in cylindrically-shaped objects using pulse-echo testing are provided. By mounting one or more transducers on a rotary tester for testing manufactured objects such as tubes and bars, offsetting each transducer horizontally from its position if it were to emit a beam that is perpendicular to the object's outer surface, and actuating the transducer so as to emit an angled beam, oblique surface flaws and internal flaws may be reliably detected without reducing inspection speed, significantly adding to transducer cross-talk, or requiring significant additional hardware or processing.

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Номер записи: 56
12-09-2013 дата публикации

Inspection device for inspecting foreign matter

Номер: US20130233437A1
Автор: Alfred Drenguis, Claas Fritsche, Jürgen Herrmann, Marius Michael Hermann
Принадлежит: KHS GmbH

A container handling installation in which retaining and transport elements transport containers in a transport direction and in which filling stations fill containers with product includes an inspection device for checking the container for unwanted foreign matter. The inspection device is integral with the retaining and transport element and includes a piezo sensor. Also included is an evaluation unit connected to the inspection device. The inspection device is configured to connect to the container such that the container and the inspection device move together in a respective direction of movement and in the transport direction.

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Номер записи: 57
26-09-2013 дата публикации

Inspection device for inspecting foreign matter

Номер: US20130248321A1
Автор: Jürgen Herrmann, Wolfgang Schorn
Принадлежит: KHS GmbH

An apparatus for transporting containers includes transport elements for transporting the containers in a transport direction, each of the transport elements including a clamping element, which is either a centering or holding element, for clamping a particular container, and an inspection device to inspect a container-to-be-inspected for unwanted foreign matter. The inspection device has a piezo sensor and is integral to the transport, centering, or holding element. The apparatus also includes an analysis unit connected to the inspection device, and an excitation element for controlling movement of a container. The inspection device is connectable to the container such that the container can be moved in an appropriate direction of movement and in the transport direction using the inspection device.

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Номер записи: 58
17-10-2013 дата публикации

Resonance inspection-based surface defect system/method

Номер: US20130269435A1
Автор: Leanne Jauriqui
Принадлежит: Vibrant Corporation

A system and method for evaluating a part-under-test ( 120 ) is disclosed. The part-under-test ( 120 ) is excited using at least one drive frequency. A first surface acoustical wave (SAW) mode ( 206 ) is identified in the frequency response ( 200 ). A separate reference peak ( 204 ) for the identified SAW mode ( 206 ) is also identified in the frequency response ( 200 ). At least one degeneracy assessment zone ( 208 ) is evaluated for existence of a surface defect trigger condition. If a surface defect trigger condition exists, the part-under-test ( 120 ) may be rejected. Otherwise, the part-under-test ( 120 ) may be accepted.

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Номер записи: 59
17-10-2013 дата публикации

Flaw Detection Method and Apparatus for Fuel Cell Components

Номер: US20130269436A1
Автор: Stephen Couse, Tulin Akin
Принадлежит: Bloom Energy Corp

Various embodiments provide systems and methods for detecting defects in components of a fuel cell. Embodiment methods and systems include directing acoustic energy into the component, detecting acoustic energy from the component, analyzing a characteristic of the detected acoustic energy, and based on the analyzing, determining the presence or absence of a defect in the component.

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Номер записи: 60
17-10-2013 дата публикации

Sensing device and method of attaching the same

Номер: US20130269437A1
Автор: Fred Timothy Matthews, Matthew Harvey Krohn, Nathan John Smith, Paul Aloysius Meyer
Принадлежит: General Electric Co

A sensing device and a method of attaching the sensing device to a target object is disclosed. The substrate of the sensing device has one or more bonding material vias that allows the bonding material used to attach the substrate to the target object to flow from one side of the substrate to the other side of the substrate. The bonding material forms rivets to secure the substrate to the target object and to secure the layers of the substrate to each other.

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Номер записи: 61
17-10-2013 дата публикации

Ultrasonic method and system for determining tissue pathology

Номер: US20130269441A1
Автор: Leigh A. Neumayer, Timothy E. Doyle
Принадлежит: University of Utah Research Foundation UURF, Utah State University USU

A method for determining a pathology of a tissue sample. The method includes steps of coupling the tissue sample between two oppositely-facing ultrasonic transducers; acquiring a pulse-echo ultrasonic measurement and a through-transmission ultrasonic measurement of the tissue sample using the ultrasonic transducers; analyzing at least one of the pulse-echo ultrasonic measurement and the through-transducer transmission ultrasonic measurement using time domain analysis; analyzing at least one of the through-transmission ultrasonic measurements and the pulse-echo ultrasonic measurements using frequency domain analysis; and determining the pathology of the tissue sample based on at least one of the time domain analysis and the frequency domain analysis.

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Номер записи: 62
07-11-2013 дата публикации

Internal stringer inspection system for integrated structures

Номер: US20130291641A1
Автор: Allison Jean Wright
Принадлежит: Spirit AeroSystems Inc

An inspection apparatus and method for inspecting an interior surface of a hollow composite part. The inspection apparatus may have a first plug, a second plug, and a trolley positioned between the first and second plugs. The first and second plugs may form a leak-proof seal against the interior surface of the hollow composite part. The trolley may support at least one inspection probe for testing the interior surface of the composite part. A method of inspecting the composite part may include the steps of inserting the inspection apparatus into the hollow composite part, pushing or pulling the inspection apparatus with an elongated actuation element to a desired area to be inspected within the composite part, then filling a space between first and second plugs with a liquid. Finally, the method may include a step of inspecting the interior surface of the hollow composite part with the inspection probe.

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Номер записи: 63
07-11-2013 дата публикации

Apparatus for detecting a toner density of a liquid developer

Номер: US20130294790A1
Автор: Hideo Izawa, Kotaro Harada, Sumito Mera
Принадлежит: Miyakoshi Printing Machinery Co Ltd

A deaerator and a density detector are provided in a liquid developer circulating path through which the liquid developer in a main tank is circulated, wherein the deaerator includes a bundle of hollow fibers each forming a hollow fiber membrane whose inside is depressurized and over whose outer peripheral surface the liquid developer is forced to flow under pressure, thereby sufficiently removing dissolved air in the liquid developer, and a toner density of the liquid developer is detected when the liquid developer of which dissolved air is sufficiently removed is passed through the density detector utilizing ultrasonic waves, making it possible to detect the toner density with a high degree of precision.

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Номер записи: 64
14-11-2013 дата публикации

Apparatus for Noninvasive Measurement of Properties of a Fluid Flowing in a Tubing Having a Small Inner Diameter Passage

Номер: US20130304403A1
Автор: Naim Dam
Принадлежит: Hema Q Inc

Apparatus for non-invasive measuring of the sound velocity of a fluid flowing in a tubing having a small internal diameter for the fluid passage as compared to the tubing wall thickness and having points of two different and known transverse length with a sensor mounted at each point and a delay line adjacent to the tubing at each point. Each sensor is connected to a circuit that provides ultrasonic energy signals that are transmitted through the tubing walls, the flowing fluid and the delay line to be reflected back to the sensor from which the round trip transit time of the signals is measured and the sound velocity calculated from the two measured round trip transit times and the differential between the known transverse lengths.

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Номер записи: 65
21-11-2013 дата публикации

Non-destructive inspection systems and methods that incorporate interchangeable probes

Номер: US20130305849A1
Автор: Dennis P. Sarr, James C. Kennedy
Принадлежит: Boeing Co

A non-destructive inspection (NDI) device is described that includes a robotic arm, a storage device proximate the robotic arm, and a plurality of NDI probe assemblies disposed within the storage device. Each NDI probe assembly includes at least one transducer operable for NDI of a part and a tool operable as a mechanical interface between the robotic arm and the corresponding NDI probe assembly. Each NDI probe assembly is configured for a specific NDI task, for NDI of a part, and the robotic arm is operable for selectively engaging the tools and movement of the probe assemblies for the NDI of at least a portion of a part.

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Номер записи: 66
21-11-2013 дата публикации

Ultrasonic non-destructive evaluation methods for friction-welded blisks

Номер: US20130308419A1
Автор: Frederick William Vensel, Robert John Hogan, Surendra Singh, Vincent Chung
Принадлежит: Honeywell International Inc

The disclosed embodiments generally relate to non-destructive evaluation methods. More particularly, the disclosed embodiments relate to ultrasonic non-destructive evaluation methods for the evaluation of friction welded bladed discs (“blisks”). In an embodiment, a method for non-destructive evaluation of a bladed disc structure includes identifying a region of interest on the bladed disc structure; positioning an ultrasonic transducer and receiver in the region of interest; scanning the region of interest using the ultrasonic transducer and receiver to produce a scan image; and comparing the scan image against a reference image to determine the presence of an anomaly in the region of interest.

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Номер записи: 67
28-11-2013 дата публикации

Optical waveguide having a varying index gradient

Номер: US20130315547A1
Автор: Bertrand Parvitte, Mickael Brun, Sergio Nicoletti, Virginie Zeninari
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA

A photoacoustic detection device including a nanophotonic circuit including a first chip on which is formed at least one optical waveguide and in which is formed a set of cavities defining a Helmholtz resonator; at least one optical source capable of emitting an optical signal in a given wavelength range, capable of being modulated at an acoustic modulation frequency, this source being attached to the first chip; a second chip forming a cap for said cavities and including acoustic sensors; and electronic circuits for processing the output of the acoustic sensors formed in the first or the second chip. Further, an optical waveguide comprising, on a silicon substrate, a silicon germanium core with a variable germanium concentration along a direction perpendicular to the substrate, said core being covered with a cladding silicon layer.

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Номер записи: 68
05-12-2013 дата публикации

Materials-testing multisensor and method for testing of materials with a materials-testing multisensor

Номер: US20130319109A1
Автор: Frank Rinn
Принадлежит: Individual

A material testing multisensor comprising at least one receiving sensor ( 1 ) with at least two pins ( 2 ), which are electrically conductive, preferably in the front region, can be driven with a defined force into a test piece to be investigated and, depending on their depth of penetration, allow the average density there to be concluded and, depending on the electrical conductivity between the pins ( 2 ), allow the ion content between them to be concluded, and also comprising at least one transmitter ( 3 ) or transmitter sensor, with which the test piece is tapped at at least one location, preferably at a number of locations, in the case of round cross sections for example seven evenly distributed locations, in order to measure and evaluate the sound transit time and other properties of the generated shockwaves at the receiving sensor ( 1 ). Also provided is a method for material testing with such a material testing multisensor.

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Номер записи: 69
05-12-2013 дата публикации

Method to determine the mass concentration of particles in a dispersion including particles and fluid

Номер: US20130322903A1
Автор: Christian Kopp
Принадлежит: Individual

In a method to determine particle mass concentration in a dispersion having particles and fluid, the dispersion in a measurement cell is exposed to an alternating field of variable frequency to set the particles into oscillation to generate sound pressure waves. Amplitudes of the sound pressure waves are measured depending on the frequency so that a maximum amplitude of the sound pressure waves is established and a frequency associated with the amplitude is determined as a resonance frequency of the sound pressure wave. The mass concentration of the particles in the dispersion is established from the resonance frequency.

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Номер записи: 70
12-12-2013 дата публикации

Campbell diagram displays and methods and systems for implementing same

Номер: US20130328901A1
Автор: Charles T. HATCH, John Wesley Grant
Принадлежит: Individual

Methods and systems for creating Campbell diagram displays for illustrating vibration characteristics of a moving apparatus, such as a rotary machine, are provided. Data, representing vibration amplitudes and frequencies are recorded against rotational speeds of an apparatus. The data is used to create waveforms representing the forward and/or reverse vibration frequencies of the apparatus. The waveforms in turn are used to create spectral line envelopes to provide enhanced two dimensional images indicating the amplitudes of the vibrations of the apparatus at particular rotational speeds. The spectral line envelopes may be empty, filled with one or more colors, or other illustration features to impart solidity to the envelopes to enhance visibility.

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Номер записи: 71
12-12-2013 дата публикации

Cavity opto-mechanical sensor array

Номер: US20130330232A1
Автор: Marcel W. Pruessner, Todd H. Stievater, William S. Rabinovich
Принадлежит: US Department of Navy

A mass sensor system including multiple Fabry-Perot microcavities connected in parallel by multiple waveguides. Each of the mass sensors includes a microbridge having a fundamental resonance frequency, and a movable reflective mirror etched into the microbridge; a fixed reflective mirror etched in a substrate, the fixed reflective mirror being fixed to the substrate in a region spaced apart from the movable reflective mirror; and an optical waveguide etched in the substrate that connects the movable mirror and the fixed mirror forming the Fabry-Perot microcavity interferometer. The system includes a tunable continuous-wave laser operative to optically interrogate the Fabry-Perot microcavity of each of the plurality of mass sensors, and a receiver operative to receive sensor signals from each of the plurality of mass sensors, the sensor signals comprising reflective signals and transmitted signals. A continuous-wave laser may generate optical forces that modify the motion, dynamics, or mechanical Q-factor of the microbridge.

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Номер записи: 72
12-12-2013 дата публикации

Apparatus and method for determining the internal cleanliness of a tube

Номер: US20130332091A1
Автор: Noam Amir, Tal Pechter
Принадлежит: ACOUSTICEYE LTD

A system to measure the internal state of a bundle of tubes by injecting a signal into each tube of the bundle, receiving reflections from the tube due to anomalies within the tube, then analyzing the reflections to determine the type or characteristics about the anomalies. The analyzed information is stored in database to be used for statistical processing. Further, the device can be used in the performance of a cleaning process by conducting an initial assessment of the tubes in a bundle of tubes, comparing the stored data and estimating the number of cleaning cycles that will be required, and re-conducting the evaluation of the state of the tubes after every cleaning cycle or after every few cleaning cycles.

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Номер записи: 73
19-12-2013 дата публикации

Property measurement system for metal material

Номер: US20130335745A1
Автор: Mitsuhiko Sano
Принадлежит: Toshiba Mitsubishi Electric Industrial Systems Corp

A property measurement system for a metal material includes: a laser oscillator that emits a pulse laser beam; a lens array that has small lenses with a same shape, the small lenses being laid in a matrix on a plane perpendicular to an optical axis of the pulse laser beam, and arranged so that a part of a cross section of the pulse laser beam can be made incident onto each of small lenses; a condensing lens that overlaps and condenses emitted beams coming from the small lenses on a same region of a surface of a metal material as a measurement target; a laser interferometer that detects, as an electric signal, a pulse ultrasonic wave that is excited by the pulse laser beam condensed and propagates through an inside of the metal material; and a signal processing device that processes the electric signal.

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Номер записи: 74
19-12-2013 дата публикации

Method and apparatus for defect detection in composite structures

Номер: US20130338941A1
Автор: Heng Kiat Jonathan Hey, Lay Siong Goh, Lye Seng Wong, Ricky Riyadi Chan, Roman Britner, Wei Lin
Принадлежит: Agency for Science Technology and Research Singapore

Methods and apparatus for non-destructive testing of a composite structure utilizing sonic or ultrasonic waves. In response to a wideband chirp wave sonic excitation signal transmitted from a probe to the composite structure, a probe signal received is correlated with a library of predetermined probe signals and a graphical representation of defects detected is generated. The graphical representation provides detailed information on defect type, defect location and defect shape. Also contemplated is a probe for non-destructive testing of a composite structure comprising three or more transducers wherein each transducer is separately configurable as a transmitter or as a receiver; and a controller coupled to each of transducer for providing signals thereto and receiving signals therefrom, wherein the signals provided thereto include signals for configuring each transducer as either a transmitter or a receiver, and signals for providing an excitation signal from each transducer which is configured as a transmitter.

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Номер записи: 75
26-12-2013 дата публикации

Ultrasonic testing device with conical array

Номер: US20130340530A1
Автор: York Oberdoerfer
Принадлежит: General Electric Co

The present application provides an ultrasonic testing device. The ultrasonic testing device may include a conical backing and an ultrasonic transducer assembly positioned on the conical backing. The ultrasonic transducer assembly may include a printed circuit substrate with a number of separate transducer elements.

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Номер записи: 76
02-01-2014 дата публикации

Test head for testing a workpiece having an ultrasonic transducer configuration containing a plurality of ultrasonic transducers and process for producing such a test head

Номер: US20140000371A1
Автор: Guenter Engl, Henning Heuer, Michael Kroening, Thomas Herzog
Принадлежит: Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV, Intelligendt Systems and Services GmbH

A test head for testing a workpiece has an ultrasonic transducer configuration with a plurality of ultrasonic transducers. The test head further contains a carrier matched to a surface contour of the workpiece, a damping layer arranged on the carrier, and a flexible conductor foil configuration, which is arranged on the damping layer and has a number of electrically separated conductor tracks which corresponds to the number of transducer elements. The transducer elements are arranged on the conductor tracks alongside one another in at least one row, and in each case are electrically contact-connected to one of the conductor tracks.

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Номер записи: 77
02-01-2014 дата публикации

Installation for non-destructive testing, by immersion ultrasounds, of workpieces

Номер: US20140000372A1
Автор: Francois Jean-Pierre Mirville, Kamal Bessri, Louis Bettega, Pascal Bardouillet
Принадлежит: SNECMA SAS

To test transverse flanges terminating at a cylindrical wall of a workpiece, an installation includes a structure in a form of a U-shaped or C-shaped stirrup whose opposite branches carry respectively an ultrasound emitter transducer and receiver transducer, aligned with respect to one another, while leaving between them an internal space for relative passage of the flange to be tested, and whose base is mounted articulated at an extremity of a mobile control arm. The installation also includes an immersion canister including two parts assembled together by a closure mechanism, one of the parts exhibiting cutouts for engaging the transverse flange and for overlapping, with the other part, the flange up to the cylindrical wall of the workpiece.

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Номер записи: 78
09-01-2014 дата публикации

In-well full-bore multiphase flowmeter for horizontal wellbores

Номер: US20140012507A1
Автор: Omer Haldun Unalmis, III, Sumeet Trehan
Принадлежит: Weatherford Lamb Inc

Methods and apparatus for measuring individual phase fractions and phase flow rates in a multiphase flow based on velocity of the flow, speed of sound through the fluid mixture, and the density of the fluid mixture. Techniques presented herein are based on measuring frictional pressure drop across a flowmeter conduit, determining a surface roughness term for the conduit during initial flow tests or through other mechanical means, implementing a correction method to balance the momentum equation, and calculating the fluid mixture density using the measured pressure drop. The techniques may be applicable to measuring flow parameters in horizontally oriented conduits and, more generally, conduits of any orientation.

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Номер записи: 79
23-01-2014 дата публикации

Non-destructive evaluation methods for machine-riveted bearings

Номер: US20140020467A1
Автор: Anthony Restivo, Eric Bridges, Surendra Singh
Принадлежит: Honeywell International Inc

The disclosed embodiments generally relate to non-destructive evaluation methods. In an embodiment, a method for non-destructive evaluation of a machine-riveted bearing includes positioning a first plurality of sensors in the region of interest, the first plurality of acoustic sensors being provided in a phased array, positioning a second plurality of sensors in the region of interest, the second plurality of sensors being provided in a phased array, inducing a vibration in the region of interest using the first plurality of sensors and receiving a resonance frequency spectra using the second plurality of sensors, and comparing the received resonance frequency spectra against a reference spectra to determine the presence of an anomaly in the region of interest.

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Номер записи: 80
30-01-2014 дата публикации

System and method for photoacoustic gas analysis

Номер: US20140026639A1
Автор: Boon Kwee Lee, Xuefeng Wang
Принадлежит: General Electric Co

A system for analyzing gas concentrations in a gas mixture includes an array of semiconductor light sources which are configured to generate an electromagnetic radiation having a narrow bandwidth. A controller modulates the electromagnetic radiation at a modulating frequency to provide light pulses at an absorption wavelength of at least one target gas. The system also includes an acoustic resonant gas chamber to hold the gas mixture and configured to receive the light pulses and amplify acoustic signals emanating from the gas mixture. A processor determines a concentration of the target gas based on acoustic signals.

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Номер записи: 81
30-01-2014 дата публикации

Method And Device for Measuring Corrosion Metal Loss

Номер: US20140028328A1
Автор: Hegeon Kwun, Ronald H. Peterson
Принадлежит: Southwest Research Institute SwRI

A method and system for detecting corrosion metal loss. One may provide a guided wave probe that includes an electromechanical device and a corrosion probe. This may be followed by measuring a baseline guided wave attenuation value of the corrosion probe with no corrosion. One may then periodically measure the guided wave attenuation of the corrosion probe and detect an increase in guided wave attenuation values and identify metal corrosion associated with the increase in guided wave attenuation values. This may then be followed by estimating the corrosion metal loss of the metallic component.

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Номер записи: 82
06-02-2014 дата публикации

Apparatus For Determining The Texture Of Food Material

Номер: US20140033819A1
Автор: Bruno Pfister, Erich J. Windhab, Stefan Padar, Ulrich Loeser
Принадлежит: Kraft Foods R&D Inc USA

The present application relates to an apparatus for determining the texture of food material, wherein the apparatus comprises a device for generating a vibrational impact, such as a piezo actuator, a device for measuring vibrations, such as a vibrometer, a holding mechanism, comprising a container body for containing the food material therein or a string to attach the food material thereto, and an analyser for comparing measured vibrations with at least one reference value, determined prior to the measurement.

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Номер записи: 83
06-02-2014 дата публикации

Electrically Responsive Device

Номер: US20140037504A1
Автор: Brett P. Masters, Michael F. Miller, Shivalik Bakshi
Принадлежит: BioScale Inc

In some aspects, an electrically responsive device can include a composite structure having spatially modulated structural properties that includes a substrate material having a surface and defining a plane; an electrically responsive material layer formed over at least a portion of the surface of the substrate material; an electrode material over portions of the electrically responsive material; and a stiffening material disposed along the electrode material, where the stiffening material has a thickness that varies and has regions of increased thickness that correspond with the regions of the composite structure along which the electrode material is disposed. The spatially modulated structural properties can include the regions of the composite structure along which the electrode material is disposed having the increased material stiffness, exclusive of the electrode material, relative to regions of the composite structure that do not include the electrode material.

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Номер записи: 84
06-03-2014 дата публикации

Passive wireless sensors for chemical and biological agents and wireless systems including the passive wireless sensors

Номер: US20140062666A1
Автор: Mark Alan Patterson
Принадлежит: University of Dayton

Wireless sensors for detection of an analyte may include a sensor receiving antenna configured to receive interrogation pulses having an interrogation frequency, a DC converter, a relaxation oscillator circuit electrically, and a sensor transmitting antenna. The relaxation oscillator circuit may include a capacitance element that defines a response-pulse frequency of the wireless sensor. The capacitance element may include an interdigitated capacitor coated with a detection layer of a functional material having a dielectric constant that defines the dielectric constant of the interdigitated capacitor. This dielectric constant changes when the functional material is exposed to the analyte, thereby changing the response-pulse frequency of the relaxation oscillator circuit to an analyte-exposure frequency indicative of the exposure of the functional material to the analyte. Wireless systems for detecting an analyte may include a wireless sensor that communicates with an interrogation module.

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Номер записи: 85
06-03-2014 дата публикации

In-situ robotic inspection of components

Номер: US20140067185A1
Автор: Bryon Edward Knight, Harry Israel Ringermacher, Nilesh Tralshawala
Принадлежит: General Electric Co

Methods and systems for inspecting a component within an assembled turbomachine are disclosed. At least one miniature robotic device having a non-destructive testing structure attached thereto is configured to travel around a surface of the component. The non-destructive testing structure gathers data related to the surface, and sends the data to a computing device connected to the at least one miniature robotic device. In one embodiment, the non-destructive testing structure comprises an image capture device and an infrared (IR) heat source.

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Номер записи: 86
20-03-2014 дата публикации

Profiling tool for determining material thickness for inspection sites having complex topography

Номер: US20140076053A1
Автор: David Walter DUNFORD, Glenn Curtis LONGHURST, Helene Marie Hebert, Kenneth Robert CHAPLIN, Kristopher Kyle JONES, Michel Joseph Gilles GAUDET, Paul Gregory ADAMS, Robert Hayden LUMSDEN, Stuart Thomas CRAIG
Принадлежит: Atomic Energy of Canada Ltd AECL

A phased array ultrasonic probe may be mounted to a component to be inspected for wall thickness on an apparatus that includes a split ring adapted to be magnetically held in place on the component. In particular, the probe may be mounted to a carriage connected to the split ring in a manner that allows the carriage to rotate around the split ring while the probe is in operation. Between the probe and the component, a transducer shoe defining, by a flexible membrane, a cavity and an aperture. Conveniently, the construction of the flexible membrane allows wall thickness measurements to be acquired in portions of the component that have complex topography, such as welds. The apparatus is installed on an adaptor assembly for inspection of straight section of pipes. This adaptor assembly is not used in absence of straight section. By acquiring data from multiple output pulse transmitted at multiple incidence angles, processing software may conveniently produce an accurate wall thickness map of the area of interest on the component.

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Номер записи: 87
27-03-2014 дата публикации

Acoustic wave (aw) sensing devices using live cells

Номер: US20140087451A1
Автор: Abiche H. Dewilde, Gang Wang, Hongwei Sun, Jianping Zhang, Joel M. Therrien, Kenneth A. Marx, Lian Dai, Malavika Vashist, Sai Liu, Susan J. Braunhut
Принадлежит: University of Massachusetts UMass

In one embodiment according to the invention, there is provided a method of sensing a response of a living cell or virus to a change in conditions. The method comprises applying an essentially constant external electromotive force that causes oscillation of an acoustic wave device at essentially constant amplitude and frequency under steady state conditions. The acoustic wave device has attached at least one living cell or virus. A combined oscillating system including the acoustic wave device and the living cell or virus exhibits a fundamental frequency and at least one harmonic frequency of the combined oscillating system. The living cell or virus is exposed to a change in an environmental condition while oscillating the combined oscillating system under the essentially constant external electromotive force, whereby a response of the living cell or virus to the change in environmental condition will be indicated by a change in at least one of frequency and amplitude of the oscillation of at least one harmonic frequency of the combined oscillating system.

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Номер записи: 88
10-04-2014 дата публикации

Method And Device For Operating An SCR System

Номер: US20140096511A1
Автор: Denny SCHÄDLICH, Philippe Grass
Принадлежит: Continental Automotive GmbH

A method for operating a selective catalytic reduction (SCR) system having a urea solution supply and an ultrasound based urea concentration sensor, the measurement signal of the urea concentration sensor being representative of a propagation time of an ultrasonic pulse along a predefined path length in a fluid of the urea solution supply includes: heating at least the fluid in a detection region of the urea concentration sensor from a predefined first temperature to a predefined second temperature; during the heating, detecting the measurement signal at at least a third and fourth temperature, and in each case determining a raw concentration characteristic value as a function of the respective measurement signal, which raw concentration characteristic value is representative of the propagation time of the ultrasonic pulse; and determining a concentration characteristic value, representative of a concentration of urea in the fluid, as a function of the raw concentration characteristic values.

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Номер записи: 89
01-01-2015 дата публикации

ULTRASONIC FLAW DETECTION METHOD, ULTRASONIC FLAW DETECTION APPARATUS, AND PIPE MANUFACTURING METHOD

Номер: US20150000095A1
Автор: Iizuka Yukinori, Matsui Yutaka, Ozeki Takafumi
Принадлежит: JFE STEEL CORPORATION

An ultrasonic flaw detection method to detect flaws on an inner surface of a metallic pipe using ultrasonic waves includes a waveform hold step that acquires and holds waveform data of an echo signal when an ultrasonic probe that generates ultrasonic signals toward the inner surface and the metallic pipe are moved relative to each other, a signal analyzing step that calculates a path length up to receiving an echo signal from the inner surface and a change rate of the path length based on the waveform data held, and a flaw detecting step that detects flaws on the inner surface based on the path length and the change rate of the path length. 1. An ultrasonic flaw detection method to detect flaws on an inner surface of a metallic pipe using ultrasonic waves comprising:a waveform holding step that acquires and holds waveform data of an echo signal when an ultrasonic probe that generates ultrasonic signals toward the inner surface and the metallic pipe are moved relative to each other;a signal analyzing step that calculates a path length up to receiving an echo signal from the inner surface and a change rate of the path length based on the waveform data held; anda flaw detecting step that detects flaws on the inner surface based on the path length and the change rate of the path length.2. The method according to claim 1 , wherein the flaw detecting step determines that a flaw is present in a portion satisfying a condition in which the path length is equal to or smaller than a given path length threshold or the change rate of the path length is equal to or greater than a given path-length change rate threshold claim 1 , and that no flaw is present in a portion not satisfying the condition.3. The method according to claim 1 , whereinthe signal analyzing step further calculates a height of the echo signal from the inner surface based on the waveform data held, andthe flaw detecting step determines that a flaw is present in a portion satisfying a condition in which the path ...

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Номер записи: 90
01-01-2015 дата публикации

BIOSENSOR

Номер: US20150000397A1
Автор: Day Richard
Принадлежит:

The present application provides apparatus and methods for determining the density of a fluid sample. In particular, it provides a sensor device which can be loaded with a fluid sample such as blood, and which further comprises at least one oscillating beam member or resonator. Exposure of the blood sample to clotting agents allows a clotting reaction to commence. The device allows the density of the sample fluid to be monitored with reference to the oscillation of the vibrating beam member, thus allowing the monitoring of the clotting of the fluid sample. 1. A resonant sensor assembly for monitoring density and/or viscosity of a fluid comprising:a base substrate of fixed width and length;at least three parallel resonating beam members patterned in and integral to the base substrate, wherein the at least three beam members comprise a central beam member and at least two outer beam members, and wherein a width of the central beam member is twice the width of the at least two outer beam members such that a third mode of oscillation of the at least three beam members is optimally excitable;at least one vibration excitory element for use in providing a selective oscillation of at least one of the three beam members, wherein the at least one vibration excitory element is configured to cause at least one of the beam members to resonate in a transverse direction; andat least one sensor element for use in determining a frequency of oscillation of at least one of the at least three beam members, whereby density and/or viscosity of a fluid can be monitored by monitoring oscillations of at least one beam member.2. The resonant sensor assembly according to claim 1 , wherein the base substrate further comprising one or two side beams patterned in and integral to the base substrate parallel and spaced from the resonating beam members.3. The resonant beam assembly according to claim 1 , wherein the at least one vibratory excitory element and the at least one sensor element are ...

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Номер записи: 91
03-01-2019 дата публикации

ACOUSTIC WAVE DETECTION PROBE AND PHOTOACOUSTIC MEASUREMENT APPARATUS PROVIDED WITH THE SAME

Номер: US20190000323A1
Автор: IRISAWA Kaku
Принадлежит: FUJIFILM Corporation

In an acoustic wave detection probe provided with a light guide section that guides measuring light such that the measuring light is outputted toward a subject and an acoustic wave transducer that detects a photoacoustic wave generated in the subject by the projection of the measuring light, the light guide section includes a homogenizer that flat-tops an energy profile of the measuring light entered from the upstream side of the optical system, a light condensing member that condenses the measuring light transmitted through the homogenizer, and a bundle fiber which includes a plurality of optical fibers and is disposed such that the measuring light transmitted through the light condensing member enters from an entrance end of the bundle fiber. 2. A photoacoustic measuring apparatus as defined in claim 1 , wherein:the homogenizer is a light shaping diffuser in which small lenses are disposed randomly on one side of a substrate so that the measuring light is further diffused.3. A photoacoustic measuring apparatus as defined in claim 1 , wherein:the holding section is configured to hold the entrance end portion of the optical fibers so as to cover the input surface of the bundle fiber, and the holding section has a window at a portion at which the measuring light enters.4. A photoacoustic measuring apparatus as defined in claim 3 , wherein:the window is constituted by an ND filter.5. A photoacoustic measuring apparatus as defined in claim 1 , further comprising:an aperture member having an aperture that allows the measuring light, which is to enter the bundle fiber, to pass through and is provided at the entrance end of the bundle fiber, and gradually reduces the diameter of the aperture toward the entrance end to a size corresponding to the diameter of the bundle fiber.6. A photoacoustic measuring apparatus as defined in any one of claim 1 , wherein:the holding section includes therein a light guide member formed of a cap member and a ring shaped chip made of a ...

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Номер записи: 92
01-01-2015 дата публикации

METHOD FOR DETERMINING MECHANICAL DAMAGE TO A ROTOR BLADE OF A WIND TURBINE

Номер: US20150000404A1
Автор: Brenner Daniel, Schollbach Dirk
Принадлежит: ROBERT BOSCH GMBH

A method for detecting mechanical damage to a rotor blade of a wind turbine includes measuring vibrations of the rotor blade and generating a frequency-dependent vibration signal. A value of the signal energy over a predetermined frequency range of the vibration signal is determined at each of a number of measuring times and the respectively determined signal energy values are evaluated with respect to time in order to detect mechanical damage. 1. A method for identifying mechanical damage to a rotor blade of a wind turbine , comprising:sensing vibrations of the rotor blade;generating a frequency-dependent vibration signal;determining in each case a signal energy measure, over a predefined frequency range of the vibration signal, at a number of measurement instants; and evaluating the respectively determined signal energy measures with respect to time, so as to identify mechanical damage.2. The method as claimed in claim 1 , wherein the predefined frequency range has a width of at least 50 Hz claim 1 , 100 Hz claim 1 , 250 Hz claim 1 , or 500 Hz.3. The method as claimed in claim 1 , wherein the predefined frequency range includes frequencies above 50 Hz.4. The method as claimed in claim 1 , wherein the predefined frequency range includes frequencies below 1000 Hz.5. The method as claimed in claim 1 , wherein a frequency range of approximately 150 to approximately 350 Hz claim 1 , 500 Hz claim 1 , or 1000 Hz is used as a predefined frequency range.6. The method as claimed in claim 1 , wherein the signal energy measure is determined on the basis of a mean signal energy in the frequency range.7. The method as claimed in claim 1 , wherein the evaluation in respect of time comprises comparing the signal energy measure of a rotor blade with a corresponding signal energy measure of another rotor blade of the same wind turbine claim 1 , and wherein mechanical damage is identified if a difference between the time characteristics of the two signal energy measures exceeds a ...

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Номер записи: 93
01-01-2015 дата публикации

Method And Device For Detecting And Analyzing Deposits

Номер: US20150000406A1
Автор: Bierganns Patric, Flocken Christian, Schultz Michael, Seida Frank
Принадлежит:

The present invention relates to a method and device for detecting and analyzing deposits in liquid-bearing systems. More particularly, the device relates to being able to detect and analyze deposits in a liquid-bearing systems such as industrial plants that use and store fluids. The method relates to being able to determine a distribution of the run time of a detected ultrasonic reflection signal and analyzing the distribution to determine if deposits are deposited onto a reflecting area. 1. A method for detecting and analyzing deposits on a reflecting area , in particular inside a liquid-bearing system , comprising the steps of:emitting an ultrasonic emission signal towards the reflecting area by an ultrasonic transducer in a first step;detecting an ultrasonic reflection signal obtained by reflection of the ultrasonic emission signal in the area of the reflecting area by detection means in a second step;determining a distribution of the run time of the detected ultrasonic reflection signal in response to a specified variable in a third step;analyzing the distribution in a fourth step in order to determine if deposits are deposited at least partially onto the reflecting area.2. The method according to claim 1 , wherein the distribution is analyzed in the fourth step whether the distribution comprises a stationary point claim 1 , an inflection point claim 1 , a break point claim 1 , a pole and/or a discontinuity.31. Method according to claim 1 , wherein the position claim 1 , the gradient and/or the curvature of the distribution and/or the position of the stationary point claim 1 , the inflection point claim 1 , the break point claim 1 , the pole and/or a discontinuity is analyzed in the fourth step.4. A method for detecting and analyzing deposits on a reflecting area claim 3 , in particular according to claim 3 , comprising the steps of:emitting an ultrasonic emission signal towards the reflecting area by an ultrasonic transducer in a first step;detecting an ...

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Номер записи: 94
01-01-2015 дата публикации

Device And Method For Detecting Deposits

Номер: US20150000407A1
Автор: Bierganns Patric, Flocken Christian, Schultz Michael, Seida Frank
Принадлежит:

The present invention relates to a method and device for detecting and analyzing deposits in liquid-bearing systems. More particularly, the device relates to being able to detect and analyze deposits in a liquid-bearing systems such as industrial plants that use and store fluids. The method relates to being able to determine a distribution of the run time of a detected ultrasonic reflection signal and analyzing the distribution to determine if deposits are deposited onto a reflecting area. 1. A device for detecting deposits in a reflecting area inside a liquid-bearing system comprising an ultrasonic transducer for emitting an ultrasonic emission signal towards the reflecting area and a detection means for detecting an ultrasonic reflection signal obtained by reflection of the ultrasonic emission signal in the area of the reflecting area , wherein the device further comprises heating means for increasing the temperature of the reflecting area.2. The device according to claim 1 , wherein the heating means is directly coupled to the reflecting area claim 1 , wherein preferably the heating means is rigidly coupled to the reflecting area by heat conducting means made of a thermally conductive material.3. The device according to claim 2 , wherein the device comprises a reflecting wall claim 2 , wherein the reflecting area is provided at least partially by the reflecting wall claim 2 , preferably the reflecting wall comprises a wall portion of the liquid-bearing system and/or at least serves as a wall portion of the liquid-bearing system.4. The device according to claim 3 , wherein the heat conducting means comprises a holder having a recess claim 3 , in which the heating means is accommodated claim 3 , and wherein the heat conducting means comprises the reflecting wall claim 3 , wherein an inner side of the reflecting wall faces the ultrasonic transducer.5. The device according to claim 4 , wherein the device comprises a reflecting unit comprising the heating means claim ...

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Номер записи: 95
01-01-2015 дата публикации

ULTRASONIC NDT SENSOR ARRANGEMENT AND METHOD FOR INSPECTING SURFACES OF VARIABLE GEOMETRY OF METAL BODIES

Номер: US20150000408A1
Автор: CLARKE David Thomas, TURNER John Lilburne
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The invention relates to an ultrasonic NDT sensor arrangement for inspecting surfaces of variable geometry of metal bodies. The sensor arrangement includes a housing with a hollow inner space and an opening, through which part of an incoming sound beam exits the housing to enter a metal body to be tested. An ultrasonic sensor is coupled to the housing such that it emits said incoming sound beam directly into said hollow inner space in a direction towards the opening. The said inner space of the housing is filled with a first coupling fluid which is water. The opening of the housing is closed with a closing member, which is made of a silicone material and which has a similar density and velocity of sound compared to the first coupling fluid. 1. An ultrasonic NDT sensor arrangement for inspecting surfaces of variable geometry of metal bodies , comprising:a housing with a hollow inner space and an opening, through which part of an incoming sound beam exits the housing to enter a metal body to be tested;an ultrasonic sensor coupled to said housing such that it emits said incoming sound beam directly into said hollow inner space in a direction towards said opening, whereby said inner space of said housing is filled with a first coupling fluid,wherein that first coupling fluid is water and said opening of said housing is closed with a closing member, which is made of a silicone material and which has a similar density and velocity of sound compared to said first coupling fluid.2. The sensor arrangement according to claim 1 , wherein said closing member is a membrane.3. The sensor arrangement according to claims 1 , further comprising a pump is connected to the inner space of said housing to supply said sensor arrangement with said first coupling fluid.4. The sensor arrangement according to claim 1 , wherein said ultrasonic sensor is oriented with respect to said opening or closing member such that said part of the incoming sound beam claim 1 , which exits the housing ...

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Номер записи: 96
01-01-2015 дата публикации

OBJECT INFORMATION ACQUIRING APPARATUS AND LASER APPARATUS

Номер: US20150000411A1
Автор: Nagao Daisuke, Watanabe Tadaki
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Used is an object information acquiring apparatus including an irradiation unit for irradiating an object with a laser beam, a wavelength switching unit for selecting a wavelength of the laser beam, a restriction unit for restricting an output value of the laser beam, a probe for receiving acoustic waves that are generated from the object irradiated with the laser beam, and a configuration unit for generating characteristic information relating to the object in use of the acoustic waves, wherein the restriction unit restricts the output value according to the wavelength selected by the wavelength switching unit. 1. An object information acquiring apparatus , comprising:irradiation means configured to irradiate an object with a laser beam;wavelength switching means configured to select a wavelength of the laser beam;restriction means configured to restrict an output value of the laser beam;a probe configured to receive acoustic waves that are generated from the object irradiated with the laser beam;construction means configured to generate characteristic information relating to the object in use of the acoustic waves; anda variable voltage power source in which a voltage is controlled by the restriction means,wherein the restriction means restricts the output value according to the wavelength selected by the wavelength switching means, andwherein the irradiation means irradiates a laser beam as a result of laser medium excitation by a flash lamp that has received a high current pulse, which was created according to the voltage value of the variable voltage power source in a pulse-forming network, and also a result of Q-switching of a laser medium by a Q-switch.2. The object information acquiring apparatus according to claim 1 , wherein claim 1 , for each wavelength of the laser beam claim 1 , the laser medium has a different gain claim 1 , which represents an output value of the laser beam relative to the voltage value of the variable voltage power source.3. The ...

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Номер записи: 97
01-01-2015 дата публикации

OBJECT INFORMATION ACQUIRING APPARATUS AND LASER APPARATUS

Номер: US20150000412A1
Автор: Nagao Daisuke, Watanabe Tadaki
Принадлежит:

An object information acquiring apparatus is used, which includes: an irradiation unit for irradiating an object with a laser beam; a restriction unit for restricting an output of the laser beam from the irradiation unit; a control unit for controlling an irradiation of the laser beam and an activation of the restriction unit; a probe for receiving acoustic waves that are generated from the object irradiated with the laser beam; and a construction unit for generating characteristic information relating to the object in use of the acoustic waves, wherein the control unit performs irradiation control of not irradiating the laser beam when the restriction unit is being activated. 1. An object information acquiring apparatus , comprising:irradiation means configured to irradiate an object with a laser beam;restriction means configured to restrict an output of the laser beam from the irradiation means;control means configured to control an irradiation of the laser beam and an activation of the restriction means;a probe configured to receive acoustic waves that are generated from the object irradiated with the laser beam; andconstruction means configured to generate characteristic information relating to the object in use of the acoustic waves,wherein the control means performs irradiation control of not irradiating the laser beam when the restriction means is being activated.2. The object information acquiring apparatus according to claim 1 ,wherein the restriction means is a shutter disposed on a light path of the laser beam, andwherein the control means performs the irradiation control during an open/close operation of the shutter.3. The object information acquiring apparatus according to claim 1 ,wherein the irradiation means irradiates a laser beam of a wavelength selected from among a plurality of wavelengths, andwherein the control means performs the irradiation control, upon changing the wavelength of the laser beam.4. The object information acquiring apparatus ...

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Номер записи: 98
01-01-2015 дата публикации

OBJECT CHARACTERISTICS MEASUREMENT APPARATUS

Номер: US20150000414A1
Автор: Yatsuda Hiromi, Yoshimura Naoyuki
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An object characteristics measurement apparatus of the invention includes a surface acoustic wave device. The surface acoustic wave device includes: an interdigitated electrode that is formed on a first surface on a piezoelectric substrate, excites an elastic wave, and receives reflection based on the elastic wave; a reflector that has a third surface and a fourth surface between the interdigitated electrode and a second surface orthogonal to the first surface in a propagation direction of the elastic wave; a reaction field that is formed between the interdigitated electrode and the reflector, in which the measured object is to be loaded; and a propagator that is formed between the reflector and the second surface. 1. An object characteristics measurement apparatus , comprising a surface acoustic wave device ,the surface acoustic wave device comprising:an interdigitated electrode that is formed on a first surface on a piezoelectric substrate, excites an elastic wave, and receives reflection based on the elastic wave;a reflector that has a third surface and a fourth surface between the interdigitated electrode and a second surface orthogonal to the first surface of the piezoelectric substrate in a propagation direction of the elastic wave, the third surface being formed at a position different from that of the first surface in a normal direction of the first surface, the fourth surface connecting an end of the first surface, which is formed perpendicular to the normal direction of the first surface, to the third surface;a reaction field that is formed between the interdigitated electrode and the reflector, in which the measured object is to be loaded; anda propagator that is formed between the reflector and the second surface, whereina surface acoustic wave is separated and extracted from a bulk wave, and characteristics of the measured object are determined based on the extracted surface acoustic wave, the surface acoustic wave propagating along the reaction field ...

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Номер записи: 99
01-01-2015 дата публикации

Detecting Train Separation

Номер: US20150000415A1
Автор: Kelley John
Принадлежит: OPTASENSE HOLDINGS LIMITED

This application describes method and apparatus for detecting train separation, where one or more railway cars/carriages () accidentally decouple from the rest of the train. The method involves performing distributed acoustic sensing on at least one optical fibre () to provide a plurality of longitudinal acoustic sensor portions along the railway (). The acoustic response is analysed to detect a signature indicative of a train separation. This may involve detecting acoustic events () associated with different parts of the train and detecting when the separation between the two events exceeds a threshold amount. The method may identify the front of the train and the rear of the train and detect when the distance between the front and rear changes by more than a threshold amount and/or sounds associated with wheelsets passing track features () may be used to determine the intervals (T, T) between wheelsets of adjacent cars and determine when the interval exceeds a threshold amount. The threshold may be based on the interval (T) between wheelsets of the same car passing the track feature. 1. A method detecting separation of a train comprising:performing distributed acoustic sensing on at least one optical fibre deployed along the length of a railway so as to provide a plurality of longitudinal acoustic sensor portions along the railway;analysing the acoustic response from said acoustic sensor portions to detect a signature indicative of a train having separated.2. A method as claimed in wherein said detecting said signature comprises detecting a first acoustic event associated with a first part of a train and a second acoustic event associated with a second different part of the train and detecting that the separation between the first acoustic event and second acoustic event is beyond a threshold.3. A method as claimed in comprising analysing the acoustic response from the acoustic sensor portions to locate an acoustic signal indicative of the front of the train and ...

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Номер записи: 100