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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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09-10-2020 дата публикации

Ступенчатый настроечный образец для ультразвукового контроля плоских деталей

Номер: RU0000200184U1
Автор: Олег Евгеньевич Барышников, Сергей Владимирович Шурупов
Принадлежит: Федеральное государственное унитарное предприятие "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФГУП "ЦАГИ")

Использование: для ультразвукового контроля плоских деталей. Сущность полезной модели заключается в том, что ступенчатый настроечный образец для ультразвукового контроля плоских деталей содержит основание и площадки ввода ультразвука, расположенные по высоте образца в виде ступеней, под которыми в основании выполнены вертикальные глухие плоскодонные цилиндрические отверстия, при этом он содержит 7 площадок, расположенных таким образом, чтобы в каждом из диапазонов толщин образца: (0…0,2)А; (0…0,35)А; (0…0,65)А; (0…0,8)А; (0…0,96)А находилось не менее 3-х площадок, расположенных по высоте по экспоненциальной кривой, где А-высота образца. Технический результат: обеспечение возможности разработки нестандартного ступенчатого настроечного образца для настройки чувствительности прямых пьезоэлектрических преобразователей для ультразвукового контроля плоских деталей толщиной до 300 мм с эталонными отражателями в виде вертикальных глухих плоскодонных цилиндрических отверстий минимального возможного размера. 2 з. п. ф-лы, 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 200 184 U1 (51) МПК G01N 29/30 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01N 29/30 (2020.08) (21)(22) Заявка: 2020119427, 11.06.2020 (24) Дата начала отсчета срока действия патента: 09.10.2020 Приоритет(ы): (22) Дата подачи заявки: 11.06.2020 (45) Опубликовано: 09.10.2020 Бюл. № 28 (56) Список документов, цитированных в отчете о поиске: Настроечный образец ступенчатого типа ОСО 32.008-09 N 1. SU 1465757 A1, 15.03.1989. RU 196339 U1, 26.02.2020. SU 1619879 A1, 30.09.1991. CN 202133644 U, 01.02.2012. 2 0 0 1 8 4 R U (54) Ступенчатый настроечный образец для ультразвукового контроля плоских деталей (57) Реферат: Использование: для ультразвукового площадок, расположенных по высоте по контроля плоских деталей. Сущность полезной экспоненциальной кривой, где А-высота образца. модели заключается в том, что ступенчатый Технический результат: обеспечение ...

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Номер записи: 1
19-05-2021 дата публикации

Цилиндрический настроечный образец для ультразвукового контроля цилиндрических деталей малого диаметра

Номер: RU0000204315U1
Автор: Олег Евгеньевич Барышников, Сергей Владимирович Шурупов
Принадлежит: Федеральное государственное унитарное предприятие "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФГУП "ЦАГИ")

Полезная модель относится к устройствам неразрушающего контроля структуры и дефектов металлических изделий и может быть использована при изготовлении образцов для настройки чувствительности ультразвуковых дефектоскопов при ультразвуковом контроле (УЗК) цилиндрических деталей (прутки, отливки, поковки) диаметром не более 40 мм.Настроечный образец выполнен с эталонными цилиндрическими отражателями диаметром 0,8…1,2 мм: для настройки чувствительности профилированных пьезоэлектрических преобразователей в продольном направлении (вдоль окружности цилиндра) - в виде 3-торцевых глухих горизонтальных цилиндрических отверстий длиной (0,5…0,7)D, расположенных в вертикальной плоскости симметрии образца параллельно образующей цилиндра с шагом по высоте образца D/3; для настройки чувствительности в поперечном направлении (вдоль образующей цилиндра) - в виде 3-хордовых сквозных горизонтальных цилиндрических отверстий, расположенных перпендикулярно продольной оси симметрии цилиндрической поверхности образца с шагом D/3 по высоте образца и шагом 0,2D по длине образца. Диаметр горизонтальных цилиндрических отверстий, используемых для настройки чувствительности, равный 0,8…1,2 мм, соответствует минимальному возможному акустическому сигналу от горизонтальных цилиндрических отверстий для распознавания его над уровнем собственных шумов для диапазона толщин проверяемого металла 0…40 мм, а эффективная площадь его отражающей поверхности равна 2,2 мм2. 1 з.п. ф-лы; 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 204 315 U1 (51) МПК G01N 29/11 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01N 29/11 (2021.01) (21)(22) Заявка: 2020135344, 28.10.2020 (24) Дата начала отсчета срока действия патента: 19.05.2021 Приоритет(ы): (22) Дата подачи заявки: 28.10.2020 (45) Опубликовано: 19.05.2021 Бюл. № 14 (56) Список документов, цитированных в отчете о поиске: RU 196339 U1, 26.02.2020. RU 91176 U1, 27.01.2010. WO 2019127457 A1, 04.07.2019. ...

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Номер записи: 2
10-05-2012 дата публикации

Method for generating transverse elastic waves, and method and apparatus for acquiring images using transverse elastic waves

Номер: US20120116225A1
Автор: Taeyong KIM
Принадлежит: Alpinion Medical Systems Co Ltd

The present invention relates to a method for generating transverse elastic waves, a method and apparatus for acquiring images using the transverse elastic waves. The present disclosure provides a technique for generating transverse elastic waves by focusing the ultrasonic waves respectively on a number of focal points which are virtually present in a viscoelastic medium and also become wave sources of the transverse elastic waves, and controlling the generated transverse elastic waves to have peak positions with their overlapping points residing and translating in two line segments extending in parallel or at an acute angle to facilitate increasing elastic deformations of the viscoelastic medium to an appropriate level, and thus acquiring images with improved accuracy in the viscoelastic medium.

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Номер записи: 3
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: 4
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: 5
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: 6
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: 7
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: 8
14-03-2013 дата публикации

ULTRASOUND TRANSDUCER FOR SELECTIVELY GENERATING ULTRASOUND WAVES AND HEAT

Номер: US20130066240A1
Автор: Kolesnychenko Aleksey, Van Heesch Christianus Martinus
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS N.V.

In order to provide heating means for an ultrasonic application setup, adapted for heating a sample () gently and fast and saving costs and space, an ultrasound transducer () capable of being driven at multiple frequencies including a main frequency for efficient production of ultrasound waves and at least one alternative frequency, at which almost no ultrasound is generated, a system for sample analysis comprising such an ultrasound transducer () and a method for controlling such an ultrasound transducer () are proposed, wherein the ultrasound transducer () is driven either at the main frequency for generating ultrasonic waves or at the alternative frequency for generating heat in the ultrasound transducer (), if the sample () is to be heated. 1. A method of operating an ultrasound transducer or for sample analysis , comprising:{'b': 10', '10, 'controlling the ultrasound transducer () that is capable of being operated at at least two frequencies including a main frequency and at least one alternative frequency, wherein the ultrasound transducer () is operated'}{'b': '20', 'at the main frequency for generating ultrasound waves, if ultrasound waves are to be coupled into the sample (); and'}{'b': 10', '20, 'at one of the alternative frequencies for generating heat in the ultrasound transducer (), if the sample () is to be heated.'}210. The method of claim 1 , wherein the main frequency and the alternative frequency are resonance frequencies of the ultrasound transducer ().31010. The method of claim 1 , wherein when driving the ultrasound transducer () at at least one of the alternative frequencies claim 1 , less ultrasound intensity is generated than when driving the ultrasound transducer () at the main frequency.41020. The method according to claim 1 , wherein the ultrasound intensity generated when driving the ultrasound transducer () at at least one of the alternative frequencies is not sufficient for generating cavitations in the sample ().520. The method ...

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Номер записи: 9
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: 10
11-04-2013 дата публикации

METHOD FOR MEASUREMENT OF VIBRATION PROPERTY OF STRUCTURE, AND VIBRATION PROPERTY MEASUREMENT DEVICE

Номер: US20130090868A1
Автор: Hosoya Naoki, Kajiwara Itsuro
Принадлежит: SHIBAURA INSTITUTE OF TECHNOLOGY

A method for measuring a vibration property of a structure by applying an impulse input to the structure, which comprises: step (A) of pulse-irradiating the surface of the structure or a part adjacent to the surface with a laser beam to apply an impulse input to the structure and measuring a response output from the structure to which the impulse input has been applied; step (B) of determining the relationship between the laser intensity of the laser beam and the impulse input induced by the laser beam by a rigid pendulum method and determining an impulse input F corresponding to the laser intensity of the laser beam, with which the structure has been pulse-irradiated, based on the relationship; and step (C) of measuring the vibrational amplitude value of frequency response of the structure from the response output measured in step (A) and the impulse input F measured in step (B). 1. A method for measuring vibration properties of a structure by applying an impulse input to the structure , comprising:step (A) of pulse-irradiating the surface of the structure or the vicinity of the surface with a laser beam to apply an impulse input to the structure and measuring a response output from the structure to which the impulse input has been applied;step (B) of determining the relationship between the laser intensity of the laser beam and the impulse input induced by the laser beam by a rigid pendulum method and determining an impulse input F corresponding to the laser intensity of the laser beam, with which the structure has been pulse-irradiated, on the basis of the relationship; andstep (C) of dividing a complex Fourier spectrum of frequency and vibration amplitude obtained from the response output measured in step (A), by the impulse input F determined in step (B), thereby calculating a complex Fourier spectrum normalized by the magnitude of a force.3. The measurement method according to claim 1 , whereinthe impulse input is an impulse excitation force that is applied to ...

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Номер записи: 11
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: 12
04-07-2013 дата публикации

METHOD AND CIRCUIT FOR DETERMINING RESONANT FREQUENCIES OF A RESONANT DEVICE

Номер: US20130167643A1
Автор: Boscolo Michele Berto, Diruzza Andrea, Nizza Nicolo, Pascale Paolo
Принадлежит: STMICROELECTRONICS S.R.L.

A method determines a resonance frequency of a resonant device. The method includes stimulating the resonant device with a periodic input signal having a frequency in a frequency interval; determining a frequency value for said periodic input signal in said frequency interval for which a phase-difference between said periodic input signal and a corresponding periodic output signal of the resonant device is minimum; generating a flag indicating that a resonance frequency has been determined; and generating signals representing said resonance frequency as a value of the frequency of said periodic input signal. 1. A method of determining a resonance frequency of a shock sensor , comprising:stimulating the shock sensor with a periodic input signal having a frequency in a frequency interval;determining a frequency value for said periodic input signal in said frequency interval for which a phase-difference between said periodic input signal and a corresponding periodic output signal of the shock sensor is minimum;generating a flag indicating that a resonance frequency has been determined and generating signals representing said resonance frequency as a value of the frequency of said periodic input signal.2. The method of claim 1 , wherein determining the frequency value includes:comparing said phase-difference with a threshold;when said respective threshold is not crossed, choosing a different frequency value for said periodic input signal in said frequency interval before stimulating the shock sensor using the different frequency value.3. The method of claim 2 , wherein said threshold corresponds to an absolute value of said phase-difference of about 45° or greater.4. The method of claim 1 , wherein said periodic input signal is a square-wave input signal.5. The method of claim 4 , wherein determining the frequency value includes:comparing said phase-difference with a threshold;when said threshold is not crossed, choosing a different frequency value for said periodic ...

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Номер записи: 13
18-07-2013 дата публикации

CALIBRATION BLOCK AND METHOD

Номер: US20130180312A1
Автор: JONES Terence
Принадлежит: AIRBUS OPERATIONS LIMITED

A calibration block and method for sensitivity calibration. The calibration block has a curved calibration surface having a central axis and a surface for coupling to a transducer element of an angular scanning phased array ultrasonic testing scanner. The block is configured such that the surface positions the transducer such that its scanning axis is coaxial with the central axis of the curved calibration surface. 1. A calibration block for calibrating the signal sensitivity of an angular scanning phased array ultrasonic testing scanner arranged to generate a primary wave front at a plurality of contiguous beam angles across a scanning envelope , the calibration block being formed of an acoustically transmissive material and comprising: first major surface having a peripheral edge; a second major surface; a calibration surface disposed between general planes of the first and second major surfaces and configured to extend in a generally circular arc so as to be generally equidistant from a central axis , the peripheral edge of the first surface being spaced further from the central axis than the calibration surface; and an input surface for acoustically coupling to an ultrasound transducer of the ultrasonic testing scanner and being arranged to position the transducer such that the path length of the primary wave front from the transducer to the calibration surface is generally equal for each beam angle across the scanning envelope.2. A calibration block according to claim 1 , wherein the input surface is generally parallel with respect to the central axis of the calibration surface.3. A calibration block according to claim 1 , wherein the input surface is parallel with respect to a tangential plane to the calibration surface.4. A calibration block according to claim 1 , wherein the size of the calibration surface is selected to be representative of a defect the scanner is arranged to detect.5. A calibration block according to claim 1 , wherein the height of the ...

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Номер записи: 14
25-07-2013 дата публикации

METHOD AND SYSTEM OF DETERMINISTIC FATIGUE LIFE PREDICTION FOR ROTOR MATERIALS

Номер: US20130191039A1
Автор: Guan Xuefei, Lee Chin-Sheng, Lewis Ashley L., Radke Steve H., Zhang Jingdan, Zhen Hui, Zhou Shaohua Kevin
Принадлежит:

A method of fatigue life prediction including: calculating a critical crack size of an object of interest; identifying a first flaw in ultrasound data of the object of interest; determining that the first flaw interacts with a second flaw, the first flaw is to be merged with the second flaw, or the first flaw is isolated; calculating an initial crack size based on the determination; and calculating an increase in the initial crack size due to fatigue and creep to determine a number of load cycles until the initial crack size reaches the critical crack size. 1. A method of fatigue life prediction , comprising:calculating a critical crack size of an object of interest;identifying a first flaw in ultrasound data of the object of interest;determining that the first flaw interacts with a second flaw, the first flaw is to be merged with the second flaw, or the first flaw is isolated;calculating an initial crack size based on the determination; andcalculating an increase in the initial crack size due to fatigue and creep to determine a number of load cycles until the initial crack size reaches the critical crack size.2. The method of claim 1 , wherein the object of interest includes part of a turbine generator.3. The method of claim 2 , wherein the part includes a rotor.4. The method of claim 1 , wherein the first flaw interacts with the second flaw when a predetermined criteria for interaction is met.5. The method of claim 1 , wherein the first flaw is to be merged with the second flaw when a predetermined criteria for merging is met.6. The method of claim 1 , wherein the step of calculating the increase in the initial crack size due to fatigue and creep is repeated until the initial crack size meets or exceeds the critical crack size.7. The method of claim 1 , wherein a load cycle includes a minimum stress applied to the object claim 1 , a maximum stress applied to the object claim 1 , a temperature exposure of the object and a holding time.8. A system of fatigue life ...

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Номер записи: 15
03-10-2013 дата публикации

DIFFERENTIAL ULTRASONIC WAVEGUIDE CURE MONITORING PROBE

Номер: US20130260469A1
Автор: DJORDJEVIC Borislav B., Rouch Lawrence L.
Принадлежит: Materials And Sensors Technologies, Inc.

The present invention is seen to provide a new methodology, testing system designs and concept to enable in situ real time monitoring of the cure process. Apparatus, system, and method for the non-destructive, in situ monitoring of the time dependent curing of advanced materials using one or more differential ultrasonic waveguide cure monitoring probes. A differential ultrasonic waveguide cure monitoring probe in direct contact with the material to be cured and providing in situ monitoring of the cure process to enable assessment of the degree of cure or cure level in a non-cure related signal variances (e.g., temperature) independent calibrated response manner. A differential ultrasonic waveguide cure monitoring probe including a transducer coupled to a waveguide and incorporating correction and calibration methodology to accurately and reproducibly monitor the cure process and enable assessment of cure level via ultrasonic reflection measurements. The amplitude of the corrected interface response signal reflected from the probe-resin interface indicating changes in the modulus of the material during the cure. 1. A differential ultrasonic waveguide cure monitoring probe for in situ ultrasonic monitoring of a material undergoing a cure process , the probe comprising:an ultrasonic transducer;a waveguide having a proximal end in contact with the ultrasonic transducer and a distal end for contacting the material undergoing the cure process, the waveguide comprising:a first portion extending from the proximal end;a reference of the waveguide;a second portion extending from the reference to a tip at the distal end of the waveguide;an ultrasonic signal generated by the ultrasonic transducer and transmitted into the waveguide;an interface signal generated by a portion of the ultrasonic signal reflecting back from the interface of the probe and the material undergoing a cure, the interface signal reflecting back to the ultrasonic transducer, the interface signal being used ...

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Номер записи: 16
24-10-2013 дата публикации

Tracking system for a pipeline

Номер: US20130279296A1
Автор: Bao-Wen Yang, Eric Yang, Marion Recane, Stephanie H. Yang
Принадлежит: Acoustic Systems Inc

A tracking system for use with a pipeline includes a scraper having signal generation capability for generating acoustic signals, a plurality of acoustic pressure sensors positioned at intervals along the path traveled by the scraper, and a plurality of local processors positioned at intervals along the path traveled by the scraper. Each of the local processors is in communication with a respective acoustic pressure sensor. A central processor is in communication with the local processors and determines the location of the scraper using time-stamped acoustic signals received by the pressure sensors and a speed of sound in a fluid within the pipeline.

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Номер записи: 17
31-10-2013 дата публикации

REAL-TIME PAVEMENT PROFILE SENSING SYSTEM USING AIR-COUPLED SURFACE WAVE

Номер: US20130289896A1
Автор: Cao Yinghong, Wang Ming
Принадлежит: NORTHEASTERN UNIVERSITY

A non-contact testing system and method using acoustic sensors and a mobile sensing system using this system and method is disclosed. The leaky surface wave is recorded with directional microphones. A fast inversion analysis algorithm is introduced to estimate the shear velocity profile and elastic modulus for the subsurface layers of pavement structures, using the dispersion curves obtained from the acoustic signals. An electrical hammer is used to produce impact impulses automatically. A mobile sensing system is integrated on a mobile cart to perform the mobile subsurface sensing for pavement structures. 1. A method for characterizing at least one layer of pavement to a predetermined penetrating depth , comprising:providing a data processor for receiving audio input signals;disposing an array of microphones proximate an upper surface of the pavement, the array being in communication with the data processor for communicating audio input signals thereto;applying a substantially vertical point load impact to the pavement;detecting with a plurality of microphones in the array a leaky surface wave generated by the impact;defining, by the data processor, a dispersion curve from the leaky surface wave, the dispersion curve mapping phase velocity versus wavelength or frequency; and starting at the lowest wavelength or highest frequency corresponding to the pavement surface, and repeating for each consecutive higher wavelength or lower frequency corresponding to a substantially horizontal layer along the predetermined penetrating depth, dividing the respective phase velocity value by a predetermined estimate of the amplitude of particle vertical displacement for the substantially horizontal layer, while assuming all deeper layers are uniform half-space, to derive estimates of shear velocity at corresponding penetrating depths, and', 'iteratively adjusting the estimates of shear velocity by repeating, starting at the lowest wavelength or highest frequency and for each ...

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Номер записи: 18
31-10-2013 дата публикации

Gap Measurement Tool and Method of Use

Номер: US20130289900A1
Автор: John Carroll Griffith, Joseph Robert Wyatt, III
Принадлежит: Areva NP Inc

A process of collecting and manipulating data to measure the gap between structural components of a piece of equipment or a system is disclosed and claimed. The technique uses ultrasonic zero degree longitudinal waveforms to measure the gap. The technique subtracts the average of two adjacent waveforms from the waveform being processed to remove data from reflections from the components to reveal the reflections generated by the gap.

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Номер записи: 19
31-10-2013 дата публикации

Control System and Method Using an Ultrasonic Area Array

Номер: US20130289935A1
Автор: II Jack Conway, Kitchens, Schneider John K.
Принадлежит:

A computer control system and method is disclosed. Such a system may include a processor and an ultrasonic area-array sensor configured to receive a ridged surface, such as one or more digits of a hand. The processor may be configured to: 1. A computer control system , comprising:an ultrasonic area-array sensor configured to receive a ridged surface; (a) acquire a first information set from the sensor, the first information set representing at least a portion of the ridged surface,', '(b) acquire a second information set from the sensor, the second information set representing at least a portion of the ridged surface,', '(c) compare the first information set with the second information set to identify a common feature of the ridged surface that is present in both the first information set and the second information set,', '(d) determine a first position of the common feature using the first information set,', '(e) determine a second position of the common feature using the second information set, and', '(f) calculate a control measurement by comparing the first position and the second position., 'a processor configured to2. The system of claim 1 , wherein the control measurement is used to control a cursor displayed on a monitor.3. The system of claim 1 , wherein the control measurement is a distance between the first position and the second position.4. The system of claim 1 , wherein the control measurement is a direction from the first position to the second position.5. The system of claim 1 , wherein the control measurement is a velocity claim 1 , the velocity being the distance between the first position and the second position divided by the time between acquiring the first information set and the second information set.6. The system of claim 1 , wherein the control measurement is a change in rotational orientation of the common feature between the first position and the second position.7. The system of claim 6 , wherein the change in rotational orientation is ...

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Номер записи: 20
14-11-2013 дата публикации

Method for Detecting Damage to a Hollow Shaft

Номер: US20130298684A1
Автор: Stephan Oskar
Принадлежит: BASF SE

A method for detecting damage to a hollow shaft having no radially encircling notches, openings, or channels by: 111. A method for detecting damage to a hollow shaft () , wherein the hollow shaft () has no radially encircling notches , opening , or channels , comprising:{'b': 19', '21', '1, '(a) positioning a sensor () for transmitting and receiving a signal at an end face () of the hollow shaft (),'}(b) transmitting a signal and receiving an echo of the signal,(c) determining a signal propagation time from the time of transmitting the signal until receiving the echo,(d) comparing the signal propagation time to a predetermined intended value and emitting a warning in the case of a deviation.21925272327211. The method according to claim 1 , wherein the sensor () is positioned in a region between the a radial distance of the an inner face () of the a casing () with respect to the axis and the a radial distance of the an outer face () of the casing () with respect to the axis on the end face () of the shaft ().319. The method according to claim 1 , wherein the sensor () is an ultrasound sensor.419. The method according to claim 3 , wherein the ultrasound sensor () has an operating frequency in the range between 0.1 and 1 MHz.51. The method according to claim 1 , wherein the hollow shaft () has a length in the range between 2 and 10 m.619211. The method according to claim 1 , wherein the sensor () is placed onto the end face () of the hollow shaft () using a coupling agent.71. The method according to claim 1 , wherein the hollow shaft () is made of a metallic material.821119. The method according to claim 1 , wherein the end face () of the hollow shaft () onto which the sensor () is placed is made of solid matter or welded.92127. The method according to claim 1 , wherein the end face () is integrally connected to a casing ().10211. The method according to claim 1 , wherein the end face () has an angle with respect to the shaft () claim 1 , which angle lies in the range ...

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Номер записи: 21
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: 22
12-12-2013 дата публикации

SYSTEMS AND METHODS FOR DAMAGE DETECTION IN PLATE-LIKE STRUCTURES USING GUIDED WAVE PHASED ARRAYS

Номер: US20130327148A1
Автор: Owens Steven E., Rose Joseph L., YAN FEI
Принадлежит: FBS, INC.

A method for ultrasonic guided wave defect detection in a plate-like structure is disclosed. The method includes driving a plurality of transducers to cause guided waves to be transmitted in the plate in a predetermined direction or focused at a predetermined focal point, receiving at least one reflected guided wave signal, and processing the at least one reflected guided wave signal to identify a location of at least one possible defect in the plate-like structure. Defect detection data including the location of the at least one possible defect in the plate-like structure is stored in a machine readable storage medium. 1. An ultrasonic guided wave system for defect detection in a plate-like structure , comprising:at least two guided wave transducers configured to be disposed on a plate; and a machine readable storage medium, and', cause a pulse generator to pulse the at least two guided wave transducers in accordance with at least one of time delays or amplitude controls such that guided wave energy is steered in a predetermined direction in the plate or is focused at a predetermined focal point,', 'process at least one reflected guided wave signal to identify a location of at least one possible defect in the plate, and', 'have defect detection data of the plate including the location of the at least one possible defect in the plate stored in the machine readable storage medium., 'a processor in signal communication with the machine readable storage medium, the processor configured to'}], 'a controller electrically coupled to the at least two guided wave transducers, the controller including'}2. The system of claim 1 , wherein the at least two transducers are disposed in a housing to form a portable multi-element probe.3. The system of claim 1 , wherein the at least two transducers are coupled to the plate-like structure.4. The system of claim 1 , wherein at least one of the at least two transducers is a shear polarized dpiezoelectric transducer.5. The system of ...

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Номер записи: 23
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: 24
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: 25
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: 26
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: 27
30-01-2014 дата публикации

DEVICE FOR CALIBRATING AND TESTING ECHOTOMOGRAPHIC EQUIPMENT

Номер: US20140026634A1
Автор: Bini Fabiano, Marinozzi Franco
Принадлежит: UNIVERSITA DEGLI STUDI DE ROMA LA SAPIENZA

A device for calibrating and testing echotomographic equipment comprises an electric motor, a pair screw—female screw, wherein the screw is connected to an outlet shaft of the motor and the female screw is mobile with respect to a supporting plane, so as to transform a rotary motion of the motor shaft into a linear motion, a piston connected to the female screw and linearly mobile, coherently to the female screw, a membrane stressed by the piston, means apt to allow propagating ultrasound waves towards/from said membrane. 1100. A device () for calibrating and testing echotomographic equipment comprising:{'b': '1', 'an electric motor ();'}{'b': 3', '4', '3', '11', '1', '4', '10', '11', '1, 'a pair screw ()—female screw (), said screw () being connected to an outlet shaft () of the motor () and said female screw () being mobile with respect to a supporting plane (), so as to transform a rotary motion of the shaft () of the motor () into a linear motion;'}{'b': 5', '4', '4, 'a piston () connected to said female screw () and linearly mobile, coherently to said female screw ();'}{'b': 62', '5, 'a membrane () stressed by said piston ();'}{'b': 6', '62, 'means apt a device adapted to allow propagating ultrasound waves () towards/from said membrane (), and'}{'b': 4', '5, 'a device adapted to detect a linear position of said female screw () and piston ().'}21003112. The device () according to claim 1 , wherein said screw () is connected to said shaft () by means of an elastic joint ().310081. The device () according to claim 1 , further comprising a device adapted to detect an angular speed () of said motor ().410066162. The device () according to claim 1 , wherein said device adapted to allow propagating the waves () comprises a hollow container () claim 1 , a wall thereof is formed by said membrane ().510062. The device () according to claim 4 , wherein said container is filled up with liquid claim 4 , said membrane () being in contact with the liquid.61007714. The device ...

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Номер записи: 28
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: 29
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: 30
06-02-2014 дата публикации

Method And System For Implementing Ultrasonic Sensor signal strength calibrations

Номер: US20140039750A1
Автор: Kane Michael David, Luo Wangdong, Samuel Stephen Varghese, Shaffer Aric David, Stempnik Vern, Yopp Wilford Trent
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Temperature compensation for ultrasonic sensors can have a significant error that is highly undesirable because temperature of ultrasonic sensors and the temperature of the medium through which they sense objects affect signal strength calibrations (e.g., echo thresholds) applied when detecting an object. In order to increase the detection capabilities and reported distance of an object, ultrasonic sensors need to adjust their detection criteria and distance calculations as the temperature of air surrounding a vehicle (i.e., outside air temperature) changes and also as the temperature of the sensor changes. Embodiments of the inventive subject matter provide for a simple, effective and consistent approach for determining a temperature upon which such detection criteria and distance calculation adjustments can be based. 1. A method for processing a signal provided from an ultrasonic sensor of a vehicle to a signal processing unit of the vehicle , comprising:at least one data processing device accessing, from memory coupled to the at least one data processing device, instructions causing the at least one data processing device to determine a first instance of a signal strength calibration, wherein the first instance of the signal strength calibration is based on a first instance of outside air temperature information and a first instance of powertrain operating information and wherein the signal strength calibration enables information outputted from the ultrasonic sensor to provide at least a baseline level of object detecting performance;the at least one data processing device accessing, from the memory, instructions causing the at least one data processing device to determine a vehicle operating condition requiring alteration of the signal strength calibration for maintaining at least the baseline level of object detecting performance from the information outputted from the ultrasonic sensor; andthe at least one data processing, device accessing, from the memory, ...

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Номер записи: 31
20-02-2014 дата публикации

WEAK BOND DETECTION

Номер: US20140047922A1
Автор: Adams Douglas E., Sharp Nathan D., Sterkenburg Ronald
Принадлежит: PURDUE RESEARCH FOUNDATION

Apparatuses and methods are disclosed for determining whether a structure of bonded layers includes locations where the layers are weakly bonded. Embodiments include evaluating the frequency response of the structure in response to vibrational inputs. Alternate embodiments include evaluating the non-linear response of the structure using a modal analysis. Further embodiments include obtaining the vibrational information with an accelerometer contacting the structure, while additional embodiments include exciting the structure with an impact force, which may be applied at multiple locations on the structure's surface. Still further embodiments include performing a MAC, COMAC, and/or FRF analysis. Still other embodiments include varying the amplitude of the input vibration. Additional embodiments locate the areas of weakened bonding. Still other embodiments include methods and apparatuses for simulating a laminated structure with defective bonding, such as kiss bonding. 1. A method , comprising the acts of:vibrating a structure of bonded layers;evaluating a modal response of the structure to said vibrating; anddetermining the existence of weak bonding between layers of the structure by said evaluating.2. The method of claim 1 , wherein said vibrating includes impacting the structure.3. The method of claim 1 , wherein said vibrating includes impacting the structure with a modal hammer.4. The method of claim 1 , wherein said vibrating includes vibrating the structure at multiple locations.5. The method of claim 4 , wherein the vibration amplitude at each of the multiple locations is within ten percent (10%) of a target vibration amplitude.6. The method of claim 4 , wherein the multiple locations form a repeating spatial pattern.7. The method of claim 4 , wherein the multiple locations do not form a repeating spatial pattern.8. The method of claim 1 , wherein said vibrating includes vibrating the structure with at least two different amplitudes.9. The method of claim 8 , ...

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Номер записи: 32
06-03-2014 дата публикации

DEVICES, SYSTEMS, AND METHODS FOR NON-DESTRUCTIVE TESTING OF MATERIALS AND STRUCTURES

Номер: US20140060193A1
Автор: Dai Xiaowei, Haberman Michael R., Zhu Jinying
Принадлежит: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Provided are devices, systems, and methods for the testing of materials and structures. For example, the devices, systems, and methods are optionally used for the non-destructive testing of a material or structure. Furthermore, the devices, systems, and methods may optionally use a high-amplitude, air-coupled acoustic source for non-destructive testing of materials and structures. 1. An acoustic source for non-destructive testing of a material , comprising:a. a sound generator; andb. a focusing apparatus that focuses sound generated by the sound generator through air and onto a surface of the material to create wave motion within the material.2. The source of claim 1 , wherein the sound generator produces sound with energy in frequencies sufficient for excitation of wave motion in the material.3. The source of claim 1 , wherein the sound generator produces sound having a peak sound pressure level sufficient to penetrate into the material.4. The source of claim 3 , wherein the peak sound pressure level is between about 120 dB re 20 microPa and 185 dB re 20 microPa.5. The source of claim 1 , wherein the sound generator produces an electrical spark which generates the sound.6. The source of claim 5 , wherein the sound generator comprises two electrodes spaced from one another by a predetermined gap distance.7. The source of claim 6 , wherein a spark is generated between the two electrodes to produce the sound.8. The source of claim 6 , wherein the gap distance is between about 0.1 mm and 10 mm.9. The source of claim 6 , wherein the discharge voltage is between about 1 and 30 kV.10. The source of claim 1 , wherein the focusing apparatus reflects sound produced by the sound generator.11. The source of claim 10 , wherein the focusing apparatus comprises an ellipsoidal sound reflector.12. The source of claim 11 , wherein sound generator produces an electrical spark at one focus of the ellipsoidal sound reflector to generate the sound.13. The source of claim 11 , wherein ...

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Номер записи: 33
13-03-2014 дата публикации

DETECTION AND MEASUREMENT OF DEFECT SIZE AND SHAPE USING ULTRASONIC FOURIER-TRANSFORMED WAVEFORMS

Номер: US20140074410A1
Автор: Gilbert Jason A., Glavicic Michael G.
Принадлежит: Rolls-Royce Corporation

A system may include a data analysis device that is configured to receive from an ultrasonic waveform detector ultrasonic waveform data representative of an ultrasonic waveform that propagated through a sample and resonated within a defect within the sample. The data analysis device may be further configured to select a portion of the ultrasonic waveform data, apply a Fast Fourier Transform to the portion of the ultrasonic waveform data to transform the portion from a time domain to a frequency domain, identify a characteristic frequency of the portion in the frequency domain, and determine a characteristic of the defect based on the characteristic frequency of the portion. In some examples, the characteristic of the defect may be at least one of an approximate size or an approximate shape of the defect. 1. A system comprising: receive from an ultrasonic waveform detector ultrasonic waveform data representative of an ultrasonic waveform that propagated through a sample and resonated within a defect within the sample;', 'select a portion of the ultrasonic waveform data;', 'apply a Fast Fourier Transform to the portion of the ultrasonic waveform data to transform the portion from a time domain to a frequency domain;', 'identify a characteristic frequency of the portion in the frequency domain; and', 'determine a characteristic of the defect by at least one of (1) comparing the characteristic frequency to a calibration curve or (2) calculating an approximate size of the defect using at least one equation that relates the characteristic frequency to the approximate size of the defect., 'a data analysis device configured to26-. (canceled)7. The system of claim 1 , wherein the data analysis device is configured to determine the characteristic of the defect by comparing the characteristic frequency to the calibration curve claim 1 , and wherein the calibration curve comprises a plot of characteristic frequencies of defects of a known shape and known sizes versus an inverse ...

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Номер записи: 34
20-03-2014 дата публикации

Method and device for measuring a mean value of visco-elasticity of a region of interest

Номер: US20140081138A1
Автор: Claude Cohen-Bacrie, David Savery, Jean-Luc Gennisson, Jeremy Bercoff, Mathias Fink, Mickael Tanter
Принадлежит: SuperSonic Imagine SA

The invention relates to a method for measuring a mean visco-elasticity value for a soft material. Said method using a single probe carrying at least one transducer comprises the steps of: a) inducing, in a constraint zone, at least one burst of mechanical vibrations in order to generate internal shear waves in the tissue propagating from said constraint zone into the tissue, b1) measuring, with said transducer, the transient tissue displacements in at least one first measurement zone in the tissue, said first measurement zone being located away from said constraint zone, c) estimating a mean visco-elasticity of the region of the tissue situated between the constraint zone and the first measurement zone from said measured transient tissue displacements of the tissue in the first measurement zone.

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Номер записи: 35
27-03-2014 дата публикации

DEVICE AND METHOD FOR DETERMINING PROPERTIES OF A MEDIUM

Номер: US20140083194A1
Автор: FAUSTMANN Hendrik, Muench Michael
Принадлежит: SENSACTION AG

The invention relates to a device for determining properties of a medium, having a carrier () which can be brought into contact with the medium (); at least one transmitter (), arranged on the carrier (), for exciting acoustic waves (A) in the carrier (); at least one receiver (), arranged on the carrier (), for receiving acoustic waves (A, A′) which originate from waves (A) excited in the carrier () by means of the transmitter (); a first material region () arranged on the carrier (); and a second material region () arranged on the carrier (), wherein the name of the second material region () is such that it absorbs sound waves at the frequency of the acoustic waves (A) excited in the carrier () more strongly than the first material region (). The invention also relates to a method for producing such a device. 1. A device for determining properties of a medium , comprising{'b': 2', '3, 'a carrier () which can be brought in contact with the medium ();'}{'b': 4', '2', '2, 'at least one transmitter () arranged on the carrier () for exciting acoustic waves (A) in the carrier ();'}{'b': 5', '2', '2', '4, 'at least one receiver () arranged on the carrier () for receiving acoustic waves (A, A′) which originate from waves (A) excited in the carrier () by means of the transmitter ();'}{'b': 61', '4, 'a first material region () arranged on the carrier (); and'}{'b': 62', '4', '62', '2', '61, 'a second material region () arranged on the carrier (), wherein the second material region () is of such a kind that it absorbs sound waves with the frequency of the acoustic waves (A) excited in the carrier () more strongly than the first material region ().'}261262. The device according to claim 1 , characterized in that the first material region () is of such a kind that it reflects sound waves with the frequency of the waves (A) excited in the carrier () more strongly than the second material region ().361262. The device according to or claim 1 , characterized in that the first ...

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Номер записи: 36
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: 37
10-04-2014 дата публикации

Ultrasonic Tools for Detection of Gasoline/Ethanol Phase Separation

Номер: US20140096591A1
Автор: Caldwell Joe, Dockery Howard, Durham Sidney, Kumar Dinesh
Принадлежит:

A method to detect a phase separation of gasoline and ethanol may include the steps of generating a sound signal in a tank, determining a speed of the sound signal, determining an interface level in the tank, determining the speed of the sound signal below the interface level and determining the phase separation based upon the speed of the sound signal. 1) A method to detect a phase separation of gasoline and ethanol , comprising the steps of:generating a sound signal in a tank;determining a speed of the sound signal;determining an interface level in the tank;determining the speed of the sound signal below the interface level;determining the phase separation based upon the speed of the sound signal.2) A method to detect a phase separation of gasoline and ethanol as in claim 1 , wherein the step of determining the interface level includes the step of determining only if one interface is detected.3) A method to detect a phase separation of gasoline and ethanol as in claim 1 , wherein the step of determining the interface level includes the step of determining only if two interface levels are detected.4) A method to detect a phase separation of gasoline and ethanol as in claim 1 , wherein the method includes the step of determining if water is present. The present invention relates to a device and method of detecting the separation of gas and ethanol.Today's gasoline is mixed with ethanol (alcohol) to create a fuel that burns cleaner than 100 percent gasoline. Water ingress into a fuel tank, above-ground or underground, causes the ethanol and water to combine and drop to the bottom of the tank. The combination of water and ethanol in gasoline is known as phase separation. Fuel is pumped from the lower part of the tank and if sufficient phase separation is present, it will be dispensed into a vehicle.Phase separation has been shown to damage fuel dispensing equipment and motor vehicle fuel systems, including hoses and gaskets. The corrosive phase separation mixture ...

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Номер записи: 38
03-01-2019 дата публикации

Systems and methods for detecting embedded target elements using signal interference

Номер: US20190000419A1
Автор: Keng-Ku Liu, Mingquan Yuan, Shantanu Chakrabartty, Srikanth Signamaneni, Yarub Alazzawi
Принадлежит: Washington University in St Louis WUSTL

A sensor system includes a sensor module that is embedded in a target environment and a signal system. The sensor module includes an active sensor of a first type that detects a target element in the target environment and a reference sensor of the first type that prevents detection of target elements by the reference sensor. The active sensor and the reference sensor receive an ultrasonic signal and respectively generate a first response signal and a second response signal. The first response signal is at least partially as a function of the detected target element. The signal system includes an ultrasonic transducer that generates the ultrasonic signal and receives the first and second response signals, and a controller communicatively coupled to the ultrasonic transducer. The controller identifies the detected target element based at least partially on the first and second response signals.

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Номер записи: 39
06-01-2022 дата публикации

ULTRASONIC DETECTION AND TENSILE CALIBRATION TEST METHOD FOR BONDING STRENGTH GRADE

Номер: US20220003719A1
Автор: HE LEI, Wang Qiutao, Xiao Dingguo, Xu Chunguang
Принадлежит:

An ultrasonic detection and tensile calibration test method for bonding strength grade comprising bonding an upper substrate block to bonding groove(s) to form a theoretical bonding area, and applying a downward actual tensile force to a lower substrate block; obtaining an actual bonding area of the theoretical bonding area; calculating a first actual bonding strength by using the actual tensile force and the actual bonding area, and comparing the first actual bonding strength with a second actual bonding strength calculated to verify the correctness of the theoretical bonding area as a calibrated bonding strength; forming a bond strength table in which the theoretical bonding areas, the actual bonding areas and the first actual bonding strengths are in one-to-one correspondence; and using the actual bonding area to find the actual bonding strength corresponding to the actual bonding area from the bonding area bonding strength table. 1. An ultrasonic detection and tensile calibration test method for bonding strength grade , comprising:a step 1 of arranging an upper substrate block and a lower substrate block on a tensile testing machine respectively, wherein the upper substrate block is fixedly arranged, and an upper surface of the lower substrate block is provided with nine bonding grooves of the same area;{'sub': 'lv', 'a step 2 of bonding the upper substrate block to the bonding groove(s) to form a theoretical bonding area s, and a downward actual tensile force is applied to the lower substrate block;'}{'sub': 'sj', 'a step 3 of scanning an actual bonding area sof the theoretical bonding area by using an ultrasonic scanning method;'}{'sub': sj1', 'sj', 'sj1', 'sj2, 'a step 4 of calculating a first actual bonding strength σby using the actual tensile force in the step 2 and the actual bonding area sin the step 3, and the first actual bonding strength σis compared with a second actual bonding strength σcalculated by an equation to verify the correctness of a method ...

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Номер записи: 40
04-01-2018 дата публикации

AUTOMATIC TRANSDUCER OPERATING PARAMETER SELECTION

Номер: US20180003680A1
Автор: Bondurant Phillip D., KANNAJOSYULA Haraprasad
Принадлежит: QI2 Elements, LLC

Operating parameters are selected for inspecting a structure. Selecting the operating parameters includes exciting broadband ultrasonic guided waves in a multilayered structure, acquiring data corresponding to the sensed broadband ultrasonic guided waves in the multilayered structure, selecting one or more narrow frequency bands based on the acquired data, and inspecting the multilayered structure using ultrasonic guided waves in the one or more narrow frequency bands. In some examples, the data is acquired by an inspection tool capable of sensing the broadband ultrasonic guided waves in the multilayered structure. 1. A method of selecting operating parameters for inspecting a structure , the method comprising:exciting broadband ultrasonic guided waves in a multilayered structure;acquiring, by an inspection tool capable of sensing the broadband ultrasonic guided waves in the multilayered structure, data corresponding to the sensed broadband ultrasonic guided waves in the multilayered structure;selecting one or more narrow frequency bands based on the acquired data; andinspecting the multilayered structure using ultrasonic guided waves in the one or more narrow frequency bands.2. The method of claim 1 , wherein the multilayered structure comprises a coated metallic pipe having one or more of a varying wall thickness claim 1 , a varying coating thickness claim 1 , or a varying quality.3. The method of claim 1 , wherein the inspection tool is an electromagnetic acoustic transducer based inline inspection tool.4. The method of claim 1 , wherein the one or more narrow frequency bands comprise a long pulse width with a plurality of cycles.5. The method of claim 1 , wherein the ultrasonic guided waves in the one or more narrow frequency bands have a higher intensity than the broadband ultrasonic guided waves.6. A system of selecting operating parameters for inspecting a structure claim 1 , the system comprising:an ultrasonic transmitter configured to excite broadband ...

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Номер записи: 41
07-01-2021 дата публикации

DUDOU-SHAPED TEST BLOCK

Номер: US20210003537A1
Автор: Chen Changhua, Chen Qingyong, DONG Zheng, HA Yao, Liu Xiaolei, XU Zhengmao, ZHANG Hong, Zhang Li
Принадлежит: NANJING DEVELOP ADVANCED MANUFACTURING CO., LTD.

A dudou-shaped test block includes a testing structure, a first beam-path structure, and a second beam-path structure. A first arc-shaped groove and a second arc-shaped groove are provided on one side of the testing structure. The other side of the testing structure is a flat surface. The first beam-path structure and the second beam-path structure are both flat plates. A thickness of the first beam-path structure is less than a thickness of the second beam-path structure. The first beam-path structure and the second beam-path structure are both in contact with the flat surface and arranged parallel to the flat surface. The first arc-shaped groove is arranged corresponding to the first beam-path structure, and the second arc-shaped groove is arranged corresponding to the second beam-path structure. 1. A dudou-shaped test block , comprising a testing structure , a first beam-path structure , and a second beam-path structure , wherein a first arc-shaped groove and a second arc-shaped groove are provided on a first side of the testing structure , a second side of the testing structure is a first flat surface , the first beam-path structure and the second beam-path structure are a first flat plate and a second flat plate , a thickness of the first beam-path structure is less than a thickness of the second beam-path structure , the first beam-path structure and the second beam-path structure are both in contact with the flat surface and arranged parallel to the flat surface , the first arc-shaped groove is arranged corresponding to the first beam-path structure , and the second arc-shaped groove is arranged corresponding to the second beam-path structure.2. The dudou-shaped test block according to claim 1 , wherein the first arc-shaped groove and the second arc-shaped groove are both ¼ arc-shaped grooves.3. The dudou-shaped test block according to claim 2 , wherein a first side where the first arc-shaped groove is closest to the second arc-shaped groove is away from the ...

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Номер записи: 42
07-01-2021 дата публикации

Inspecting Method Employing Ultrasound Waves

Номер: US20210003538A1
Автор: Obata Akihiko, Ootsubo Makoto, Suzuki Shuhei, Toyozumi Takashi, Yokomizo Hodaka
Принадлежит: TEIJIN LIMITED

The present invention provides a method for inspecting a material to be inspected using ultrasound waves, the method including the following step to step , in which step is performed in a condition where: the surface temperature of a material under inspection—atmospheric temperature >2° C., and inspection using ultrasound waves in step satisfies: a refractive attenuation rate ≤1.5%. Step : blowing a fluid from a blowing port onto the material to be inspected. Step : inspecting the material to be inspected using the ultrasound waves after step or at the same time as the step 1201301. An inspection method for a material to be inspected using ultrasound waves , comprising following processes and :{'b': '201', 'process : blowing a fluid through a blowing port onto the material to be inspected; and'}{'b': 301', '201', '201, 'process : inspecting the material to be inspected using the ultrasound waves after the process or at a same time as the process ,'}wherein{'b': '201', 'the process is performed in a condition wherea surface temperature of a material to be inspected—an ambient temperature >2° C., and{'b': '301', 'inspection using ultrasound waves in the process satisfiesa refractive attenuation rate in echo intensity measurement ≤1.5%,2. The inspection method according to claim 1 ,{'b': 301', '201, 'wherein the inspection using ultrasound waves in the process comprises propagating the ultrasound waves on a surface of the material to be inspected where the fluid flows in the process .'}3. The inspection method according to claim 1 ,{'b': '301', 'wherein the inspection using ultrasound waves in the process includesarranging at least one pair of ultrasonic probes facing each other with the material to be inspected in between without contacting the material to be inspected;transmitting the ultrasound waves from one of the ultrasonic probes; andreceiving the transmitted ultrasound waves with the other ultrasonic probe.4. The inspection method according to claim 1 ,{'b': ' ...

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Номер записи: 43
08-01-2015 дата публикации

Apparatus and method for photoacoustic imaging

Номер: US20150007659A1
Автор: Ryuichi Nanaumi
Принадлежит: Canon Inc

A photoacoustic imaging apparatus includes a signal processor. The signal processor includes an adding unit configured to add received signals obtained by acoustic wave detecting devices to obtain a summed signal, a normalizing unit configured to normalize the summed signal for each acoustic wave detecting device with reference to an amplitude value in the received signal in the acoustic wave detecting device at the time when a maximum amplitude value in the summed signal is obtained to obtain a normalized signal, a reducing unit configured to subtract the normalized signal from the received signal for each acoustic wave detecting device to obtain a reduced signal in which the amplitude value in the received signal at the time when the maximum amplitude value in the summed signal is obtained is reduced, and an imaging unit configured to generate image data using the reduced signals.

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Номер записи: 44
27-01-2022 дата публикации

Acoustic pipe condition assessment using coherent averaging

Номер: US20220026395A1
Автор: Bruce Robertson, Sebastien Perrier, Valentin Mircea Burtea
Принадлежит: Mueller International LLC

Methods, systems, and computer-readable storage media for accurate time delay estimation using coherent averaging. A plurality of out-of-bracket acoustical impulses are generated in a pipe segment of a fluid distribution system. Signal data representing the acoustical impulses sensed at two locations along the pipe segment are recorded. Precise timings for the generation of the acoustical impulses are obtained, and the acoustical impulses in the signal data recorded from the first location are averaged based on the precise timings to produce a near-sensor average impulse. Similarly, the acoustical impulses in the signal data recorded from the second location are averaged based on the same precise timings to produce a far-sensor average impulse. A time delay between arrival of the plurality of out-of-bracket acoustical impulses at the first and second locations is estimated from the timing of the near-sensor average impulse and the far-sensor average impulse.

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Номер записи: 45
11-01-2018 дата публикации

METHOD FOR INSPECTING HIGH DENSITY POLYETHYLENE PIPE

Номер: US20180011064A1
Автор: Furr Parrish Alan
Принадлежит:

A system and method directed to inspecting a high density polyethylene pipe. The system includes a pipe inspection tool that is positioned about a fused polyethylene pipe joint. The inspection tool may include search units, a pipe carriage, a pulser and a phased array testing instrument programmed to adjust an amplitude response signal from the search units based on a vertically established time corrected gain curve. The inspection tool is rotated around the high density polyethylene pipe joint while propagating acoustical waves at various patterns and angles through the polyethylene pipe joint. Prior to the joint inspection, the inspection tool is calibrated using a calibration tool which includes a block having an array of equal sized bores positioned along different axis' through the block's depth. The block is constructed of the same material type and grade as the pipes that were fused together to form the polyethylene pipe joint. 1. A method for inspecting polyethylene pipe , the method comprising:identifying a first high density polyethylene pipe to be inspected;determining a material parameter of the first high density polyethylene pipe to be inspected;selecting a high density polyethylene calibration block having the same material parameter as the high density polyethylene pipe to be inspected;utilizing an acoustic signal propagated into the block to identify at least one void formed in the block at a known location within the block;calibrating a phased array test instrument based on the acoustic signal and the known orientation; andutilizing the calibrated phased array test unit to inspect the identified high density polyethylene pipe.2. The method of claim 1 , wherein calibrating a phased array test unit further comprises establishing a time corrected gain curve calibrating an amplitude response signal to each void in an array of voids at different depths within the block based on known locations of the voids.3. The method of claim 2 , wherein calibrating ...

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Номер записи: 46
15-01-2015 дата публикации

ULTRASONIC SENSOR CONTROL SYSTEM FOR OCCUPANCY SENSING

Номер: US20150013464A1
Автор: Joyce Jason
Принадлежит: The Watt Stopper, Inc.

An active ultrasonic room occupancy sensor with the output amplitude of the transmitter controlled by the amplitude of power applied to the transmitter to control the zone of coverage for a sensor. An adjustable voltage regulator under control of a microcontroller applies controlled amplitude voltage to the transmitter to adjust the output amplitude of the transmitter. The adjustable amplitude transmitter allows an occupancy sensor to have its total output energy adjusted to conform to the area to be covered. Lowering the total ultrasonic energy in the monitored space lowers the sensitivity of the receiver to inappropriate activations. Lowering the input power to the transmitter also lowers the total internal system noise and provides an improved signal to noise ratio in the receiver. Alternatively, the power applied to the receiver may also be controlled by an adjustable voltage regulator under control of the microcontroller to improve receiver efficiency. 1. A method of controlling an active ultrasonic occupancy sensor to control an area of sensor coverage , the method comprising the steps:providing an ultrasonic transmitter with a power supply applying power to an adjustable voltage regulator which applies adjustable amplitude power to the ultrasonic transmitter;providing an ultrasonic receiver;providing a microcontroller; andthe microcontroller controlling the amplitude of the output voltage of the adjustable regulator to control the ultrasonic transmitter and the ultrasonic receiver.2. The method of wherein the step of providing an ultrasonic transmitter with a power supply claim 1 , provides an ultrasonic transmitter with a 24 VDC power supply and the microcontroller controls the adjustable voltage regulator to provide adjustable power with a voltage in the range of 5-9 VDC.3. The method of further comprising:providing a fixed voltage regulator which receives power from the power supply and applies power to the adjustable voltage regulator.4. The method of ...

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Номер записи: 47
09-01-2020 дата публикации

APPARATUS FOR DETECTING DEFECT AND METHOD FOR DETECTING DEFECT USING THE SAME

Номер: US20200011836A1
Автор: CHA Seung Eun, SHIN Dong Hwan, SHIN Ye Ji
Принадлежит:

The present disclosure relates to an apparatus for detecting a defect and a method for detecting a defect using the same, and more particularly, to an apparatus for detecting a defect and a method for detecting a defect using the same for detecting a defect inside an inspection object without destructing the inspection object. 1. An apparatus for detecting a defect comprising:a first probe unit configured to transmit a signal into an inspection object and receive a signal generated inside the inspection object;a second probe unit separately installed from the first probe unit and configured to receive the signal generated inside the inspection object; anda position determining unit configured to detect a defect position inside the inspection object using the signal received by the first probe unit and the signal received by the second probe unit.2. The apparatus of claim 1 , wherein the first probe unit and the second probe unit are movably installed along a surface of the inspection object.3. The apparatus of claim 1 , wherein the signal generated inside the inspection object comprises a diffraction signal that the signal transmitted from the first probe unit is diffracted by a defect.4. The apparatus of claim 1 , wherein the position determining unit determines the defect position inside the inspection object using an interval L between the first probe unit and the second probe unit claim 1 , a distance Sfrom the first probe unit to the defect claim 1 , and a distance Sbetween the second probe unit to the defect.5. The apparatus of claim 4 , wherein the distance Sfrom the first probe unit to the defect is calculated using a difference between transmission time of the signal transmitted from the first probe unit and a reception time of the signal received by the first probe unit claim 4 , and a travel speed of the signal inside the inspection object.6. The apparatus of claim 5 , wherein the distance Sfrom the second probe unit to the defect is calculated using a ...

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Номер записи: 48
09-01-2020 дата публикации

METHOD OF INSPECTING STRUCTURE AND INSPECTION SYSTEM

Номер: US20200011839A1
Автор: Jang Jinho, Liu Peipei, Sohn Hoon
Принадлежит: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

In a method of inspecting a structure, a first ultrasonic signal generated from a target structure by a first laser beam is received. The first ultrasonic signal is generated by providing the first laser beam generated from a first excitation unit to the target structure. A second ultrasonic signal generated from the target structure by a second laser beam different from the first laser beam is received. The second ultrasonic signal is generated by providing the second laser beam generated from a second excitation unit to the target structure. A third ultrasonic signal generated from the target structure by the first and second laser beams is received. The third ultrasonic signal is generated by simultaneously providing the first and second laser beams to the target structure. It is determined whether the target structure is damaged based on first, second and third ultrasonic frequency spectra that are obtained by converting the first, second and third ultrasonic signals, respectively. 1. A method of inspecting a structure , the method comprising:receiving a first ultrasonic signal generated from a target structure by a first laser beam, the first ultrasonic signal being generated by providing the first laser beam generated from a first excitation unit to the target structure;receiving a second ultrasonic signal generated from the target structure by a second laser beam, the second ultrasonic signal being generated by providing the second laser beam generated from a second excitation unit to the target structure, the second excitation unit and the second laser beam being different from the first excitation unit and the first laser beam, respectively;receiving a third ultrasonic signal generated from the target structure by the first laser beam and the second laser beam, the third ultrasonic signal being generated by simultaneously providing the first laser beam and the second laser beam to the target structure; anddetermining whether the target structure is damaged ...

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Номер записи: 49
03-02-2022 дата публикации

INFUSION SYSTEM AND METHOD OF USE WHICH PREVENTS OVER-SATURATION OF AN ANALOG-TO-DIGITAL CONVERTER

Номер: US20220031943A1
Автор: Belkin Anatoly S., Dumas, III John Hicks, Kotnik Paul T., Ruchti Timothy L., Sur Kunal
Принадлежит:

To detect air in a fluid delivery line of an infusion system, infusion fluid is pumped through a fluid delivery line adjacent to at least one sensor. A signal is transmitted and received using the at least one sensor into and from the fluid delivery line. The at least one sensor is operated, using at least one processor, at a modified frequency which is different than a resonant frequency of the at least one sensor to reduce an amplitude of an output of the signal transmitted from the at least one sensor to a level which is lower than a saturation level of the analog-to-digital converter to avoid over-saturating the analog-to-digital converter. The signal received by the at least one sensor is converted from analog to digital using an analog-to-digital converter. The at least one processor determines whether air is in the fluid delivery line based on the converted digital signal. 120.-. (canceled)21. An infusion system configured to detect air in an infusion line , said infusion system comprising one or more hardware processors configured to:control an operating frequency of a first sensor, said first sensor configured to transmit a first signal in a fluid delivery line;receive a digital signal from an analog to digital converter, said analog to digital converter configured to convert a detected signal responsive to the transmitted first signal from analog to digital;determine that the detected first signal is saturated;change the operating frequency of the sensor based on the determination of saturation; anddetect an air indication in the infusion line based on the changed operating frequency.22. The infusion system of claim 21 , wherein the changed operating frequency is different than a resonant frequency of the sensor.23. The infusion system of claim 22 , wherein the resonant frequency of the sensor is predetermined.24. The infusion system of claim 21 , wherein the sensor is responsive to signals above a minimum level.25. The infusion system of claim 24 , ...

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Номер записи: 50
19-01-2017 дата публикации

Method and device for detecting elasticity of viscous elastic medium

Номер: US20170014098A1
Автор: Houli Duan, Jin Sun, Jinhua Shao
Принадлежит: Wuxi Hisky Medical Technologies Co Ltd

A method and a device for nondestructively detecting an elasticity of a viscoelastic medium are provided. The method includes: detecting a pressure applied to the viscoelastic medium by an ultrasonic transducer probe; in response to the pressure satisfying a predetermined condition, triggering detecting the elasticity of the viscoelastic medium; driving the ultrasonic transducer probe with a low-frequency vibration by a vibrator so as to produce an elastic wave in the viscoelastic medium; producing an ultrasonic wave by the ultrasonic transducer probe, and transmitting the ultrasonic wave to the viscoelastic medium; collecting an ultrasonic echo; calculating an elastic parameter of the viscoelastic medium according to the collected ultrasonic echo.

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Номер записи: 51
19-01-2017 дата публикации

Method and device for detecting elasticity of viscous elastic medium

Номер: US20170014103A1
Автор: Houli Duan, Jin Sun, Jinhua Shao
Принадлежит: Wuxi Hisky Medical Technologies Co Ltd

A method and a device for nondestructively detecting an elasticity of a viscoelastic medium are provided. The method includes: driving an ultrasonic transducer probe with a low-frequency vibration by a vibrator so as to produce an elastic wave in the viscoelastic medium; producing an ultrasonic wave by the ultrasonic transducer probe, and transmitting the ultrasonic wave to the viscoelastic medium; collecting an ultrasonic echo when the elastic wave is propagated in the viscoelastic medium and the ultrasonic transducer probe stops or almost stops vibrating; calculating an elastic parameter of the viscoelastic medium according to the collected ultrasonic echo.

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Номер записи: 52
19-01-2017 дата публикации

METHOD AND DEVICE FOR DETECTING ELASTICITY OF VISCOUS ELASTIC MEDIUM

Номер: US20170014107A1
Автор: DUAN HOULI, SHAO JINHUA, SUN Jin
Принадлежит:

A method and a device for nondestructively detecting an elasticity of a viscoelastic medium are provided. The method includes: acquiring with an ultrasonic imaging probe an ultrasonic image of the viscoelastic medium; determining an area to detect the elasticity of the viscoelastic medium according to the ultrasonic image; driving the ultrasonic transducer probe with a low-frequency vibration by a vibrator so as to produce an elastic wave in the viscoelastic medium; producing an ultrasonic wave by the ultrasonic transducer probe, and transmitting the ultrasonic wave to the viscoelastic medium; collecting an ultrasonic echo; calculating an elastic parameter of the viscoelastic medium according to the collected ultrasonic echo. 1. A method for detecting an elasticity of a viscoelastic medium , comprising:acquiring with an ultrasonic imaging probe an ultrasonic image of the viscoelastic medium;determining an area to detect the elasticity of the viscoelastic medium according to the ultrasonic image;driving the ultrasonic transducer probe with a low-frequency vibration by a vibrator so as to produce an elastic wave in the viscoelastic medium;producing an ultrasonic wave by the ultrasonic transducer probe, and transmitting the ultrasonic wave to the viscoelastic medium;collecting an ultrasonic echo;calculating an elastic parameter of the viscoelastic medium according to the collected ultrasonic echo.2. The method according to claim 1 , whereinthe ultrasonic image is a M-mode ultrasonograph, a two-dimensional ultrasonic image or three-dimensional ultrasonic image.3. The method according to claim 1 , wherein the ultrasonic echo is collected when the elastic wave is propagated in the viscoelastic medium and the ultrasonic transducer probe stops or almost stops vibrating.4. The method according to claim 3 , wherein{'sub': 'select', 'claim-text': {'br': None, 'i': N', 'T+ΔT', 'F, 'sub': select', 'high, '≧ceiling(()×),'}, 'a serial number Nof a collected ultrasonic echo ...

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Номер записи: 53
19-01-2017 дата публикации

Ultrasound probe

Номер: US20170014866A1
Автор: Jian-Hung Liu
Принадлежит: Qisda Corp

An ultrasound probe including a matching element, a backing layer, a piezoelectric element and a driver is provided. The piezoelectric element is disposed between the matching element and the backing layer. The driver generates a coding wave inputted to the piezoelectric element, such that the piezoelectric element outputs a focusing sonic wave field along a short axis.

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Номер записи: 54
15-01-2015 дата публикации

Analyte sensor and analyte sensing method

Номер: US20150017735A1
Автор: Hiroshi Katta
Принадлежит: Kyocera Corp

A biosensor includes a detection element having an analyte detecting portion which is monotonically increased in mass in response to detection of an analyte; a reference element having a reference measuring portion which exhibits no reactivity to the analyte; a mixer which mixes a detection signal responsive to mass variations in the analyte detecting portion from the detection element and a reference signal from the reference element; a measurement which calculates two candidate phase-change values of a positive value and a negative value, from a signal mixed by the mixer in accordance with a heterodyne system, and determines a phase-change value from the two candidate phase change value by judging whether the phase is positive or negative based on temporal changes in signal strength; and a detection amount calculation portion which calculates a detection amount of the analyte based on the phase change value determined by the measurement portion.

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Номер записи: 55
03-02-2022 дата публикации

TESTING DEVICE

Номер: US20220034851A1
Автор: IKEDA Takayuki, Shishido Hideaki
Принадлежит: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

A cost of a testing device is reduced. A structure of a testing device is simplified. A testing device capable of testing with higher accuracy is provided. A testing device () has a structure including a sending unit (), a receiving unit (), a control unit (), and a display (). The control unit includes a memory portion () and an arithmetic portion (). The sending unit has a function of generating a pulse signal for a probe () to generate an ultrasonic wave (). The receiving unit has a function of generating a first signal including a first analog data (D) on the basis of the input single input from the probe. The memory portion has a function of storing the first analog data. The arithmetic portion has a function of generating an image signal (S0) output to the display on the basis of the first analog data stored in the memory portion. The display has a function of displaying an image based on the image signal. 1. A testing device comprising a sending unit , a receiving unit , a control unit , and a display ,wherein the control unit comprises a memory portion and an arithmetic portion,wherein the sending unit has a function of outputting a pulse signal for a probe to generate an ultrasonic wave,wherein the receiving unit has a function of generating a first signal including a first analog data on the basis of an input signal input from the probe and outputting it to the control unit,wherein the memory portion has a function of storing the first analog data,wherein the arithmetic portion has a function of generating an image signal output to the display on the basis of the first analog data stored in the memory portion, andwherein the display has a function of displaying an image based on the image signal.2. The testing device according to claim 1 ,wherein the receiving unit comprises an amplifier portion, andwherein the amplifier portion has a function of amplifying a potential of the input signal and generating a potential of the first analog data.3. The testing ...

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Номер записи: 56
16-01-2020 дата публикации

SYSTEMS AND METHODS OF OPERATION OF CAPACITIVE RADIO FREQUENCY MICRO-ELECTROMECHANICAL SWITCHES

Номер: US20200015784A1
Автор: LOEBL Hans-Peter, Shulepov Sergei
Принадлежит:

Disclosed are systems and methods of operation for capacitive radio frequency micro-electromechanical switches, such as CMUT cells for use in an ultrasound system. An RFMEMS may include substrate, a first electrode connected to the substrate, a membrane and a second electrode connected to the membrane. In some examples, there is a dielectric stack between the first electrode and the second electrode and flexible membrane. The dielectric stack design minimizes drift in the membrane collapse voltage. In other examples, one of the electrodes is in the form of a ring, and a third electrode is provided to occupy the space in the center of the ring. Alternatively, the first and second electrodes are both in the form of a ring and there is a support between the electrodes inside the rings. 1. A capacitive radio frequency micro-electromechanical switch , RFMEMS , comprising:a substrate;a first electrode connected to the substrate;a flexible membrane, wherein the flexible membrane is at least partially spatially separated from the first electrode;a second electrode connected to the flexible membrane; and a first dielectric layer, wherein the first dielectric layer has a first density of electrically active defects; and', 'a second dielectric layer, wherein the second dielectric layer has a second density of electrically active defects, lower than the first., 'a dielectric stack disposed between the first electrode and the second electrode and flexible membrane, comprising2. (canceled)3. The capacitive RFMEMS as claimed in claim 1 , wherein the first and second dielectric layers comprise silicon dioxide claim 1 , SiO2.4. The capacitive RFMEMS as claimed in claim 3 , wherein the first dielectric layer is constructed using atomic layer deposition claim 3 , ALD.5. The capacitive RFMEMS as claimed in claim 3 , wherein the second dielectric layer is constructed using chemical vapor deposition claim 3 , CVD.6. The capacitive RFMEMS as claimed in claim 4 , wherein the second ...

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Номер записи: 57
19-01-2017 дата публикации

DEVICE AND METHOD FOR DETERMINING THE CONCENTRATION OF A VAPOR BY MEANS OF AN OSCILLATING BODY SENSOR

Номер: US20170016859A1
Автор: AL AHMAD Nael, Beccard Birgit Irmgard, CREMER Claudia, EICHLER Andy, Long Michael, TRIMBORN Karl-Heinz
Принадлежит:

A device and a method determines the concentration of a vapor in a volume, in particular for determining or controlling the mass flow of the vapor being conveyed through the volume by a carrier gas. The device comprises a sensor, which supplies a sensor signal that is dependent on the concentration or partial pressure of the vapor. The sensor has an oscillatory body that can be brought to oscillation, the oscillation frequency of which is influenced by a mass accumulation formed on a surface of the oscillating body by the condensed vapor. The oscillating body has a temperature control unit, by means of which the oscillating body can be brought to a temperature below the condensation temperature of the vapor. An evaluation unit determines the concentration or the partial pressure of the vapor from the temporal change of the oscillator frequency. 1228121171817171920. A device for determining or controlling a mass flow of a vapor being conveyed through a volume () by a carrier gas , wherein the volume () can be heated by means of a heating unit () to a temperature above a condensation temperature of the vapor , the device comprising a sensor () , situated in the volume () , which supplies a sensor signal that is dependent on a concentration or a partial pressure of the vapor , the device characterized in that the sensor () has an oscillatory body () that can be brought to oscillation , an oscillation frequency of which is influenced by a mass accumulation formed on a surface () of the oscillating body () by a condensation of the vapor , wherein the oscillating body () has a temperature control unit ( , ) , by means of which the oscillating body can be brought to a temperature below the condensation temperature of the vapor , wherein an evaluation unit determines the concentration or the partial pressure of the vapor from a temporal change of the oscillation frequency.2228121171817171920. A method for determining or controlling a mass flow of a vapor being conveyed ...

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Номер записи: 58
19-01-2017 дата публикации

ULTRASONIC-PULSE-ECHO FLAW INSPECTION AT A HIGH TESTING SPEED ON THIN-WALLED PIPES IN PARTICULAR

Номер: US20170016860A1
Автор: DICK Wolfgang, Prause Reinhard
Принадлежит:

Embodiments relate to a method for ultrasonic testing according to the pulse-echo method as well as an arrangement for performing such a method. By means of an ultrasonic transducer, an ultrasonic pulse is obliquely incident into a sound incidence surface of a test object. Next, an echo signal is received from the test object. This takes place either by means of the ultrasonic transducer, which has emitted the ultrasonic pulse or with another ultrasonic transducer. The time amplitude characteristic of the echo signal is evaluated in a predefined defect expectation interval of time. The evaluation step includes, in at least one section of the amplitude characteristic, an amplification of the amplitude and/or a reduction in the threshold value. For example, the amplitude of the received echo signal is then compared with the predefined threshold value. 1. A method for ultrasonic testing , comprising:using an ultrasonic transducer to cause oblique sound incidence of an ultrasonic pulse via an input surface into a test object;receiving the echo signal from the test object with the ultrasonic transducer or another ultrasonic transducer; and 'wherein the step of evaluation includes amplification of the amplitude with a gain factor and/or a reduction in a threshold value in at least one section of the amplitude characteristic of the echo signal in the defect expectation interval of time.', 'evaluating the amplitude characteristic of the echo signal over time in a predefined defect expectation interval of time,'}2. The method according to claim 1 , wherein the gain factor varies within the at least one section.3. The method according to claim 1 , wherein the amplification of the amplitude or the reduction in the threshold value in the at least one section is designed so that a drop in amplitude claim 1 , which is brought about by damping claim 1 , is due to the damping and/or a power loss and is compensated partially or preferably entirely.4. The method according to claim 1 ...

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Номер записи: 59
19-01-2017 дата публикации

SYSTEM AND METHOD FOR PROVIDING SIMULATED ULTRASOUND POROSITY WAVEFORMS

Номер: US20170016861A1
Автор: Bossi Richard H., Georgeson Gary E., Tat Hong H.
Принадлежит:

A system and method is disclosed for generating ultrasound results having a simulated level of porosity for a composite. Data for a set of composite coupons having different levels of porosity is obtained. An attenuation distribution function is fit to a back wall signal generated from the data for each coupon and a library of echo patterns based on such data is created. An interpolated attenuation distribution function is calculated based on an interpolation of two stored attenuation distribution functions having the closest porosity values to the selected level. A main attenuation distribution function value is assigned to one portion of a selected region in a zero porosity coupon and attenuation distribution functions values within a predetermined percentage of the main attenuation distribution function are assigned to other portions of the region. Waveforms associated with the portions are modified based on such values and selected echo patterns from the library. 1. A method for generating simulated ultrasound test results having a selected level of porosity for a particular material under test , comprising the steps of:selecting a region of ultrasound test results for a coupon among a set of coupons of a selected material, the selected region within a region of porosity below a predetermined minimum threshold, the selected region for adding a predetermined amount of simulated porosity, the region of the ultrasound test results comprising a plurality of ultrasound waveforms;calculating a main attenuation distribution function based on an interpolation of two of a set of stored attenuation distribution functions for the set of coupons, one of the two stored attenuation distribution functions for a coupon in the set of coupons having a porosity less than the predetermined amount of simulated porosity and the other of the two stored attenuation distribution functions for a coupon in the set of coupons having a porosity greater than predetermined amount of simulated ...

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Номер записи: 60
19-01-2017 дата публикации

Automated Calibration of Non-Destructive Testing Equipment

Номер: US20170016862A1
Автор: Georgeson Gary E., Holmes Tyler M., Kollgaard Jeffrey R.
Принадлежит: The Boeing Company

A method for auto-calibrating a non-destructive testing instrument. In accordance with some embodiments, the method comprises: (a) determining a first set of coordinates in a test object coordinate system of the test object, the first coordinates representing a target position on a surface of the test object; (b) storing a calibration file in a memory of the non-destructive testing instrument, the calibration file containing calibration data which is a function of structural data representing a three-dimensional structure of the test object in an area containing the target position; (c) calibrating the non-destructive testing instrument using the calibration data in the calibration file; and (d) interrogating the target position using the calibrated non-destructive testing instrument. 1. A method for auto-calibrating a non-destructive testing instrument , comprising:(a) determining a first set of coordinates in a test object coordinate system of the test object, the first coordinates representing a target position on a surface of the test object;(b) storing a calibration file in a memory of the non-destructive testing instrument, the calibration file containing calibration data which is a function of structural data representing a three-dimensional structure of the test object in an area containing the target position; and(c) calibrating the non-destructive testing instrument using the calibration data in the calibration file.2. The method as recited in claim 1 , further comprising interrogating the target position using the calibrated non-destructive testing instrument.3. The method as recited in claim 1 , further comprising:obtaining structural data representing a three-dimensional structure of the test object in an area containing the target position; andgenerating the calibration file based on the target position and the structural data.4. The method as recited in claim 1 , further comprising:obtaining structural data representing a three-dimensional structure ...

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Номер записи: 61
18-01-2018 дата публикации

AN APPARATUS AND METHOD FOR INSPECTING A PIPELINE

Номер: US20180017533A1
Автор: Doust Paul, Fleury Wayne, Norli Petter
Принадлежит: HALFWAVE AS

It is described an apparatus for inspecting a pipeline, said apparatus including a cylindrical body () adapted to be transported inside said pipeline, an array of acoustical transducers (T) installed in the surface of the cylindrical body (), the acoustical transducers being organized in columns and rows in a belt around the cylindrical body, a controller adapted to initiate a transmission of an acoustical signal from a first transducer (T) and a reception of said acoustical signal from other transducers in said array surrounding the first transducer, the controller further being adapted to determine the direction to a flaw in the wall of said pipeline from the received acoustical signals. 11515. An apparatus for inspecting a pipeline , said apparatus including: a cylindrical body () adapted to be transported inside said pipeline , an array of acoustical transducers (T) installed in the surface of the cylindrical body () , the acoustical transducers being organized in columns and rows in a belt around the cylindrical body , characterized in that the apparatus includes a controller adapted to initiate a transmission of an acoustical signal from a first transducer and a reception of said acoustical signal from other transducers in said array surrounding the first transducer , said other transducers in said array detecting signals travelling in all direction from said first transducer , the controller further being adapted to determine the distance and direction to a flaw in the wall of said pipeline by comparing the signals received by said other transducers.2. An apparatus according to claim 1 , wherein the controller is adapted to initiate transmission of a signal exiting a thickness mode of the pipeline wall.3. A method for testing the wall of a pipeline claim 1 , said method including the steps of: transmitting an acoustical signal from a first transmitting transducer facing the wall and positioned in a distance from the wall claim 1 , the signal exciting a ...

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Номер записи: 62
17-01-2019 дата публикации

ULTRASONIC ELASTOMER CHARACTERIZATION

Номер: US20190017967A1
Автор: Gottlieb Emanuel, Hamid Salem
Принадлежит:

A non-destructive method uses ultrasound measurements to determine some mechanical properties of an elastomeric material. The measurements can be made during manufacture of the elastomer for quality control purposes. The measurements can also be made on the elastomeric material in situ as part of a device to assess degradation of the elastomer over time. 1. A system for characterizing elastomer material comprising:one or more ultrasonic transducers configured to transmit ultrasonic energy into an elastomer material and receive the ultrasonic energy having passed through the elastomer material; andan electronic control system configured to determine a transit time of the ultrasonic energy passing through the elastomer material and to calculate one or more mechanical properties of the elastomer material based at least in part on the determined transit time.2. A system according to wherein the elastomer material forms component of a device used in the oil and gas industry.3. A system according to wherein the one or more mechanical properties of the elastomer material are selected from a group consisting of: longitudinal modulus claim 1 , bulk modulus claim 1 , Poisson's ratio claim 1 , and Young's modulus.4. A system according to wherein the electronic control system is further configured to calculate longitudinal velocity of sound through the elastomer material and the one or more mechanical properties of the elastomer material based at least in part on the calculated longitudinal velocity.5. A system according to wherein the elastomer material is being manufactured into an elastomer component and the one or more mechanical properties are used for quality control of the manufactured elastomer component.6. A system according to wherein the device is selected from a group consisting of: a blow out preventer and a valve.7. A system according to wherein one or more ultrasonic transducers are configured to be deployed within or near the device such that the one or ...

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Номер записи: 63
17-01-2019 дата публикации

ACOUSTIC INSPECTION APPARATUS, AUDIO SIGNAL ACQUISITION APPARATUS, ACOUSTIC INSPECTION SYSTEM, AND ACOUSTIC INSPECTION METHOD

Номер: US20190017973A1
Автор: Enamito Akihiko, Nishimura Osamu
Принадлежит: KABUSHIKI KAISHA TOSHIBA

An acoustic inspection apparatus includes an acoustic-intensity calculating unit, a noise calculating unit, a noise removing unit and an inspecting unit. The acoustic-intensity calculating unit calculates an acoustic intensity, in which an acoustic intensity caused by hammering on an inspection target at a hammering position is canceled out, based on audio signals acquired by microphones in a symmetrical arrangement of at least one pair of microphone positions with respect to the hammering position or in a symmetrical arrangement of two hammering positions with respect to a pair of microphone positions. The noise calculating unit calculates a noise component from the calculated acoustic intensity. The noise removing unit removes the noise component from a physical quantity based on at least one of audio signals acquired at the at least one pair of microphone positions. The inspecting unit performs inspection on the hammering position based on the physical quantity. 1. An acoustic inspection apparatus comprising:an acoustic-intensity calculating unit that calculates an acoustic intensity, in which an acoustic intensity caused by hammering on an inspection target at a hammering position is canceled out, based on audio signals acquired by microphones in an arrangement in which at least one pair of microphone positions are symmetrical with each other with respect to the hammering position or in an arrangement in which two hammering positions are symmetrical with each other with respect to a pair of microphone positions;a noise calculating unit that calculates a noise component from the acoustic intensity calculated by the acoustic-intensity calculating unit;a noise removing unit that removes the noise component from a physical quantity based on at least one of audio signals acquired at the at least one pair of microphone positions; andan inspecting unit that performs inspection on the hammering position based on a physical quantity from which the noise component has ...

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Номер записи: 64
22-01-2015 дата публикации

VIBRATION GENERATION APPARATUS

Номер: US20150020596A1
Автор: TERAZAWA Tomohito, WATANABE Takamoto, Yamauchi Shigenori
Принадлежит: Denso Corporation

A gyro sensor includes a vibrator and a drive circuit. A PWM drive signal is applied to a pair of electrodes of the vibrator. The drive circuit outputs a high level signal and a low level signal to the electrodes as the PWM drive signal. The high level signal and the low level signal have potentials higher and lower than that of the reference signal, respectively. The drive circuit outputs the high level signal to one of the pair of electrodes and the low level signal to the other of the pair of electrodes. 1. A vibration generation apparatus for driving a test body to vibrate in response to a PWM drive signal , the vibration generation apparatus comprising:a pair of electrodes for inputting the PWM drive signal to the test body; anda drive part outputting, as the PWM drive signal, a high level signal and a low level signal to the pair of electrodes, the high level signal and the low level signal having potentials higher and lower than a potential of a reference signal, respectively,wherein the drive part outputs the high level signal and the low level signal to one and the other of the pair of electrodes, respectively.2. The vibration generation apparatus according to claim 1 , further comprising:a phase difference detection part for detecting a phase difference between a waveform phase of the PWM drive signal and a vibration phase of the test body,wherein the drive part outputs a phase-adjusted drive signal so that the phase difference becomes a predetermined phase difference.3. The vibration generation apparatus according to claim 2 , wherein:the drive part outputs a phase-adjusted drive signal so that the phase difference becomes a phase difference, which causes a self-excited resonance of the test body.4. The vibration generation apparatus according to claim 2 , wherein:the drive part outputs a phase-adjusted drive signal so that the vibration phase has a phase delay of about 90° relative to the waveform phase.5. The vibration generation apparatus according to ...

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Номер записи: 65
16-01-2020 дата публикации

PHOTOACOUSTIC GAS SENSOR PACKAGE

Номер: US20200018731A1
Автор: Mueller Thomas, Schaller Rainer Markus, Theuss Horst
Принадлежит:

A photoacoustic sensor device may include a housing and first and second ceramic cavity packages disposed in the housing. The first ceramic cavity package may include a first sidewall having a first set of electrical contact elements, a first cavity structure, and a light source electrically coupled to the first set of electrical contact elements. The second ceramic cavity package may include a second sidewall having a second set of electrical contact elements, a second cavity structure, and a photoacoustic detector electrically coupled to the second set of electrical contact elements. The first and second ceramic cavity packages may be arranged such that the light source and the photoacoustic detector face one another, and oriented such that the first and second sets of electrical contact elements align with electrical contact points of a PCB when the photoacoustic sensor device is positioned over the PCB for coupling to the PCB. 1. A photoacoustic sensor device , comprising:a housing; a first sidewall having a first set of electrical contact elements,', 'a first cavity structure, and', 'a light source mounted to the first cavity structure, and electrically coupled to the first set of electrical contact elements; and, 'the first ceramic cavity package including, 'a first ceramic cavity package disposed in the housing,'} [ a second sidewall having a second set of electrical contact elements,', 'a second cavity structure, and', 'a photoacoustic detector mounted to the second cavity structure, and, 'the second ceramic cavity package including, 'electrically coupled to the second set of electrical contact elements,', 'the first ceramic cavity package and the second ceramic cavity package being arranged such that the light source and the photoacoustic detector face one another, and being oriented such that the first set of electrical contact elements and the second set of electrical contact elements align with corresponding electrical contact points of a printed circuit ...

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Номер записи: 66
22-01-2015 дата публикации

ULTRASONIC TRANSDUCER, BIOLOGICAL SENSOR, AND METHOD FOR MANUFACTURING AN ULTRASONIC TRANSDUCER

Номер: US20150024537A1
Автор: NAKAMURA Tomoaki, Suzuki Hironori
Принадлежит:

A method for manufacturing an ultrasonic transducer includes: forming a piezoelectric element by laminating a lower electrode, a piezoelectric body, and an upper electrode on a first face of a support film; affixing a reinforcing substrate that covers the piezoelectric element to the first face of the support film; forming a photosensitive resin substrate to a second face of the support film that is on an opposite side from the first face; forming an opening in the resin substrate by irradiating the resin substrate with light; and removing the reinforcing substrate. 1. A method for manufacturing an ultrasonic transducer comprising:forming a piezoelectric element by laminating a lower electrode, a piezoelectric body, and an upper electrode on a first face of a support film;affixing a reinforcing substrate that covers the piezoelectric element to the first face of the support film;forming a photosensitive resin substrate to a second face of the support film that is on an opposite side from the first face;forming an opening in the resin substrate by irradiating the resin substrate with light; andremoving the reinforcing substrate.2. The method for manufacturing an ultrasonic transducer according to claim 1 , whereinthe forming of the resin substrate includes affixing a flexible photosensitive film as the resin substrate to the second face of the support film.3. The method for manufacturing an ultrasonic transducer according to claim 1 , further comprisingforming the support film by forming a film member on one face of a substrate prior to the forming of the piezoelectric element, andadjusting a thickness of the support film to a prescribed film thickness by reducing a thickness of the substrate from an opposite side from a side of the substrate on which the film member is formed, prior to the forming of the resin substrate and after the affixing of the reinforcing substrate.4. The method for manufacturing an ultrasonic transducer according to claim 3 , whereinthe ...

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Номер записи: 67
26-01-2017 дата публикации

Ultrasonic geometry testing, involving inaccuracy correction of transducer positioning

Номер: US20170023359A1
Автор: Norbert Steinhoff, Reinhard Prause, Robert PEIP
Принадлежит: GE Sensing and Inspection Technologies GmbH

The invention relates to a method for ultrasonic geometry testing of a test object ( 28 ) at various measuring positions distributed along a surface ( 26 ) of a test object (x n ) by means of at least one ultrasonic transducer, comprising a plurality of steps. First, a calibration device ( 20 ) with known dimensions (OD cal (x n )) is provided. Then there follow several calibrating steps, during each of which a measuring position specific distance (WP(x n )) between calibration device ( 20 ) and ultrasonic transducer ( 10 ) is determined and stored by an ultrasonic transit time method, by at least one echo on at least one surface of the calibration device ( 20 ), using the known dimension (OD cal (x n )) for each measuring position n . Subsequently, a test object ( 28 ) is provided, at which ultrasonic transit time measurements are performed in multiple test steps. Transit time measurements are thereby taken at several measuring positions x n , using at least one echo on at least one surface ( 26 ) of the test object ( 28 ). In the following evaluation step a dimension ( 27 ) of the test object is calculated using the measuring position-specific distances WP(x n ).

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Номер записи: 68
26-01-2017 дата публикации

Method For Measuring Thickness Of Carbon Fiber Components Using Ultrasounds

Номер: US20170023360A1
Автор: Bermejo Gonzalez Sergio, Jara Blazquez Luis, Lopez Bravo David, Torres Macarrilla David
Принадлежит:

The present disclosure refers to a method for measuring thickness in any type of carbon fiber component, even in components having parts with different thickness and integrating at least a second material. The method includes measuring with the maximum and minimum real thickness of the component, and measuring with ultrasonic equipment the time that the ultrasound takes to propagate across the component part with maximum and with minimum thickness, calculating a thickness correction value, and calculating an ultrasound test speed from said thickness correction value, said measured times, and said measured maximum and minimum real thickness. Then, the total thickness of each of the parts of the component are measured, using ultrasounds with the same calculated ultrasound test speed, and the thickness correction value is applied to each of the measuring total thickness of each part, to determine a corrected carbon fiber thickness for each part. 1. A method for measuring carbon fiber thickness , in a carbon fiber component having parts with different thickness and integrating at least a second material , the method comprising the steps of:measuring with a micrometer a maximum real thickness and a minimum real thickness of the carbon fiber component;measuring with an automatic ultrasonic equipment, a time that an ultrasound takes to propagate across the carbon fiber component part with the maximum real thickness and the carbon fiber component part with the minimum real thickness;calculating an optimum ultrasonic test speed and a thickness correction value for the carbon fiber component;wherein the thickness correction value and the optimum ultrasound test speed are determined using the time that the ultrasound takes to propagate across the carbon fiber component part with the maximum real thickness and the carbon fiber component part with minimum real thickness, and the maximum measured real thickness and the minimum measured real thickness;measuring a total thickness ...

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Номер записи: 69
28-01-2016 дата публикации

PHANTOM FOR CALIBRATING OBJECT INFORMATION ACQUIRING APPARATUS AND MANUFACTURING METHOD THEREOF

Номер: US20160025685A1
Автор: Asao Yasufumi, Hashizume Yohei, Ogawa Ryo, Suita Takahiro
Принадлежит:

A phantom used for calibrating an object information acquiring apparatus that irradiates light into an object and acquires characteristic information inside the object based on an acoustic wave propagated from the object, the phantom comprises a base material; and a simulated tissue portion that simulates a three-dimensional structure of a tissue inside a living body, wherein the simulated tissue portion is disposed inside the base material, and has a simulated layer, which is a layer simulating optical characteristics of the tissue inside the living body, on the surface thereof. 1. A phantom used for calibrating an object information acquiring apparatus that irradiates light into an object and acquires characteristic information inside the object based on an acoustic wave propagated from the object , the phantom comprising:a base material; anda simulated tissue portion that simulates a three-dimensional structure of a tissue inside a living body, whereinthe simulated tissue portion is disposed inside the base material, and has a simulated layer, which is a layer simulating optical characteristics of the tissue inside the living body, on the surface thereof.2. The phantom according to claim 1 , wherein the base material is constituted by a material simulating acoustic characteristics inside the living body.3. The phantom according to claim 1 , wherein the simulated tissue portion has a three-dimensional structure simulating blood vessels inside the living body.4. The phantom according to claim 3 , wherein the simulated layer is a layer simulating optical characteristics of arteries or veins.5. The phantom according to claim 3 , wherein the simulated layer is a layer simulating optical characteristics with respect to an oxygen saturation of hemoglobin in the blood.6. The phantom according to claim 3 , further comprising a second simulated tissue portion that has a three-dimensional structure simulating a tumor in the living body claim 3 ,wherein the simulated tissue ...

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Номер записи: 70
28-01-2016 дата публикации

METHOD AND SYSTEM OF CONSOLIDATING MULTIPLE PHASED ARRAY INSTRUMENTS

Номер: US20160025686A1
Автор: Couillard Benjamin, Simard Christian
Принадлежит: Olympus Scientific Solutions Americas Inc.

A non-destructive testing and inspection (NDT/NDI) system and method operable to conduct an ultrasonic scanning test on a test object that synchronizes and merges the apertures of two or more NDT sub-instruments in frequency and phase. Disclosed are a method of using a Phased Lock Loop (PLL) as a synchronizing clock/trigger generator, and also a method of using a General Positioning Clock (GPS) and a pulse per second (PPS) output. Both methods combine ultrasonic scanning data acquisition from two or more NDT sub-instruments, and transform the sub-instruments into one bigger NDT instrument. 1. A non-destructive testing and inspection (NDT/NDI) system operable to conduct an NDT/NDI test operation on a test object with N number of testing areas , including areas 1 , 2 , . . . N , the inspection system comprising ,a plurality of NDT/NDI instruments of the same type, including instruments 1, 2, . . . N, each coupled with a corresponding probe 1, 2, . . . N, which is further coupled with and receiving response signals from the corresponding testing area 1, 2, . . . , N, respectively, wherein each of the instruments has a corresponding operating clock 1, 2, . . . , N and a corresponding data acquisition unit 1, 2, . . . , N;a plurality of M clock managing units, wherein M is less than or equal to N, including clock managing units 1, 2, . . . , M, and,at least one supervising unit coupled with each of the instruments, and each supervising unit further comprising a data processing unit;wherein the clock managing units are configured to produce at least one predetermined clock and phase command managing at least one corresponding operating clock, and each clock managing unit is coupled to at least one corresponding instrument to operate the instrument with the predetermined clock and phase command, and the data processing unit is operable to compose an inspection result merging the response signals from at least some of the probes.2. The inspection system of wherein the clock ...

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Номер записи: 71
26-01-2017 дата публикации

METHOD AND DEVICE FOR INSPECTION OF SOLIDS BY MEANS OF ULTRASOUND

Номер: US20170023527A1
Автор: Mattei Christophe
Принадлежит:

A method, a computer program and a system for ultrasonic inspecting of objects is provided. The method comprises positioning () a measuring device () comprising a plurality of transducers () on the inspected object () and performing a number of test signal acquisitions (). Each acquisition includes using one transducer to induce an ultrasonic signal into the test object, and using at least one other transducer to receive an ultrasonic test signal. The inspecting further comprises determining () the influence of contact surface variations between each test signal and a reference signal; compensating () the full test signal for the contact surface variations; and determining () a residual signal. The system comprises a computing device (), and a measuring system () communicatively connected to the computing device (). The measuring system () includes an ultrasound unit () and a measuring device () provided with a plurality of transducers (). The computing device () comprises a calibrator () to determine () the influence of contact surface variations, and compensate () the test signal. The computing device () comprises a residual calculator () to determine () the residual signal. 1. A method for inspecting objects by means of ultrasound , wherein reference signals are used as references for test signals in order to establish residual signals indicating flaws in the objects , said method comprising:inspecting a test object at one or more positions, the inspecting of one position comprises:positioning a measuring device comprising a plurality of transducers in a selected position on the inspected object, so that the ultrasonic transducers are in contact with the inspected object,performing a number of test signal acquisitions at the selected position, each test signal acquisition comprising:using one transducer of the plurality transducers as a sending probe to induce an ultrasonic signal into the test object, and using at least one other transducer of the transducers as ...

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Номер записи: 72
29-01-2015 дата публикации

FLAME MONITORING OF A GAS TURBINE COMBUSTOR USING A CHARACTERISTIC SPECTRAL PATTERN FROM A DYNAMIC PRESSURE SENSOR IN THE COMBUSTOR

Номер: US20150027211A1
Автор: Claussen Heiko, Flohr Patrick Ronald, Momin Zainul, Ulerich Nancy H.
Принадлежит:

The state of a flame in a gas turbine engine combustor is acoustically monitored using a dynamic pressure sensor within the combustor. A spectral pattern of a dynamic pressure sensor output signal from the sensor is compared with a characteristic frequency pattern that includes information about an acoustic pattern of the flame and information about acoustic signal canceling due to reflections within the combustor. The spectral pattern may also be compared with a characteristic frequency pattern including information about a flame-out condition in the combustor. 1. A method for monitoring a flame in a gas turbine engine combustor , comprising:receiving a dynamic pressure sensor output signal from an acoustic sensor positioned in the gas turbine engine combustor, the output signal being indicative of acoustic oscillations within the combustor;making a first comparison of a spectral pattern of the dynamic pressure sensor output signal with a characteristic frequency pattern that includes information about an acoustic spectral pattern of the flame and information about acoustic signal canceling due to reflections of the dynamic pressure sensor output signal within the combustor; andbased on the first comparison, making a determination whether a flame is present in the combustor.2. The method of claim 1 , further comprising:making a second comparison of the spectral pattern of the dynamic pressure sensor output signal with a characteristic frequency pattern that includes information about an acoustic spectral pattern present in the combustor during a flame-out condition in the combustor; andwherein making the determination is based on the first and second comparisons.3. The method of claim 1 , further comprising:filtering the dynamic pressure sensor output signal to exclude frequencies outside an expected frequency range emitted by the flame in the combustor.4. The method of claim 1 , wherein the characteristic frequency pattern is based on training data with known ...

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Номер записи: 73
23-01-2020 дата публикации

An In-Line, Contactless and Non-Destructive Method and System for Detecting Defects in a Moving Cardboard Structure

Номер: US20200025720A1
Автор: "DANGLADE Pierre-Michel", ARDIN Cédric, BERRY Alain, Masson Patrice, Quaegebeur Nicolas
Принадлежит:

An in-line, contactless and non-destructive method for detecting and identifying defects in a moving cardboard structure is provided, as well as the associated system. The cardboard structure is of the type made of layered paper plies, such as cardboard tubes for example. The method includes the steps of emitting acoustic waves with predetermined frequencies toward the moving cardboard structure. The acoustic waves are converted into mechanical waves propagating through the moving cardboard structure. The method also includes a step of capturing the acoustic waves propagated, wherein said captured acoustic waves result from a conversion of the propagated mechanical waves through the moving cardboard structure. The method also provides steps of analyzing the captured acoustic waves; and detecting and identifying defects in the moving laminated cardboard structure based on predetermined propagation properties measured from the captured acoustic waves. 1. An in-line , contactless and non-destructive method for detecting and identifying defects in a moving laminated cardboard tube made of layers of spirally wound paper plies , the method comprising the steps of:emitting acoustic waves with predetermined frequencies in an airspace toward the moving laminated cardboard tube at a first location, the acoustic waves being converted into mechanical waves propagating through the moving laminated cardboard tube;capturing the acoustic waves propagated in the airspace at a second location, spaced away from the first location, wherein said captured acoustic waves result from a conversion of the propagated mechanical waves through the moving laminated cardboard tube;analyzing the captured acoustic waves; anddetecting and identifying defects in the moving laminated cardboard tube based on predetermined propagation properties measured from the captured acoustic waves.2. (canceled)3. The method according to claim 1 , wherein the moving laminated cardboard tube has a lengthwise axis ...

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Номер записи: 74
28-01-2021 дата публикации

SPARK ACOUSTIC EMISSION SIMULATION

Номер: US20210025854A1
Автор: EBRAHIMKHANLOU Arvin, SALAMONE Salvatore
Принадлежит:

Some aspects of the present disclosure relate to spark acoustic emission simulation. In some embodiments, one or more electrical spark generating components generate sparks at a metallic portion of a structure to stimulate the emission of acoustic and/or ultrasonic waves in the structure. One or more contact or non-contact sensors sense the emitted waves in the structure. One or more processors determine, based on signals corresponding to the emitted waves as sensed by the sensors, physical characteristics of the structure. 1. A system , comprising:one or more electrical spark generating components, configured to generate one or more sparks at a metallic portion of a structure, such as to stimulate the emission of at least one of acoustic and ultrasonic waves in the structure;one or more contact or non-contact sensors configured to sense the emitted waves in the structure; andone or more processors configured to, based on signals corresponding to the emitted waves as sensed by the sensors, determine physical characteristics of the structure.2. The system of claim 1 , wherein determining the physical characteristics of the structure comprises determining if the structure contains one or more defects.3. The system of claim 1 , further comprising a controller coupled to the one or more spark generating components and configured to control times at which the sparks are generated.4. The system of claim 1 , wherein the one or more electrical spark generating components are separated from contact with the structure.5. The system of claim 1 , wherein the one or more spark generating components comprise electrodes configured to discharge electricity to the structure to generate the one or more sparks.6. The system of claim 2 , wherein the one or more processors are configured to claim 2 , based on the signals corresponding to the sensed emitted waves claim 2 , determine the locations of the one or more defects.7. The system of claim 2 , wherein the one or more defects ...

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Номер записи: 75
01-02-2018 дата публикации

INFUSION SYSTEM AND METHOD OF USE WHICH PREVENTS OVER-SATURATION OF AN ANALOG-TO-DIGITAL CONVERTER

Номер: US20180028749A1
Автор: Belkin Anatoly S., Dumas, III John Hicks, Kotnik Paul T., Ruchti Timothy L., Sur Kunal
Принадлежит:

To detect air in a fluid delivery line of an infusion system, infusion fluid is pumped through a fluid delivery line adjacent to at least one sensor. A signal is transmitted and received using the at least one sensor into and from the fluid delivery line. The at least one sensor is operated, using at least one processor, at a modified frequency which is different than a resonant frequency of the at least one sensor to reduce an amplitude of an output of the signal transmitted from the at least one sensor to a level which is lower than a saturation level of the analog-to-digital converter to avoid over-saturating the analog-to-digital converter. The signal received by the at least one sensor is converted from analog to digital using an analog-to-digital converter. The at least one processor determines whether air is in the fluid delivery line based on the converted digital signal. 120.-. (canceled)21. An infusion system configured to improve detection of air in a fluid delivery line , the infusion system comprising:a sensor configured to detect a first signal transmitted in a fluid delivery line;an analog-to-digital converter electronically connected to the sensor, the analog-to-digital converter configured to convert the detected signal from analog to digital; determine that the detected first signal is saturated;', 'change an operating frequency of the sensor based on the determination of saturation;', 'transmit a second signal at the changed operating frequency; and', 'determine air in the fluid delivery line based on the transmitted second signal., 'a hardware processor connected with the analog-to-digital converter, the hardware processor configured to22. The infusion system of claim 21 , wherein the changed operating frequency is different than a resonant frequency of the sensor.23. The infusion system of claim 21 , wherein the one or more hardware processors are further configured to determine the resonant frequency of the sensor.24. The infusion system of ...

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Номер записи: 76
17-02-2022 дата публикации

METHOD FOR ACOUSTIC POWER SCALABLE CHARGE-REDISTRIBUTION ULTRASONIC SYSTEM WITH ON-CHIP ABERRATION COMPENSATION FOR PORTABLE ULTRASONIC APPLICATIONS

Номер: US20220047243A1
Автор: TILLAK Judyta B., YOO Jerald
Принадлежит:

The present disclosure is generally directed to a method for driving an ultrasonic transducer. The method includes coupling a driving electrode and a ground electrode of the ultrasonic transducer to a power supply and a ground, respectively, during a first time period based on a received drive signal. The method further includes decoupling the driving electrode and the ground electrode of the ultrasonic transducer from the power supply and the ground, respectively, to float the driving electrode and the ground electrode of the ultrasonic transducer during a second time period based on the received drive signal to store a charge between the driving electrode to the ground electrode. 1. A method for driving an ultrasonic transducer comprising:coupling a driving electrode and a ground electrode of the ultrasonic transducer to a power supply and a ground, respectively, during a first time period based on a received drive signal; anddecoupling the driving electrode and the ground electrode of the ultrasonic transducer from the power supply and the ground, respectively, to float the driving electrode and the ground electrode of the ultrasonic transducer during a second time period based on the received drive signal to store a charge between the driving electrode to the ground electrode.2. The method of claim 1 , further comprising shorting the driving electrode and the ground electrode of the ultrasonic transducer subsequent to floating the driving and ground electrode.3. The method of claim 1 , wherein the first time period is a driving phase and wherein the driving phase includes electrically coupling the driving electrode to the power supply via a first switch and the ground electrode to the ground via a second switch.4. The method of claim 3 , wherein the power supply outputs a first voltage V.5. The method of claim 4 , wherein the second time period is a redistribution phase and wherein the redistribution phase includes electrically decoupling the ultrasonic ...

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Номер записи: 77
02-02-2017 дата публикации

Ultrasonic Inspection Using Flexible Two-Dimensional Array Applied on Surface of Article

Номер: US20170030863A1
Автор: Gary E. Georgeson, Jeffrey R. Kollgaard, Tyler M. Holmes
Принадлежит: Boeing Co

Methods for ultrasonic inspection of a structure by laying a flexible two-dimensional flexible ultrasonic transducer array over a damage site on the structure with minimal physical interaction with the array during set-up and without further movement of the array during data acquisition. In addition, the array may remain in place on a difficult-to-access surface to enable easy periodic inspections over a long period of time. In some embodiments, the array is sandwiched between a flexible delay line substrate and a flexible display panel. In accordance with one wireless embodiment, a GPS receiver, a transceiver, pulser/receiver circuitry, and a source of electrical power (e.g., a battery) are attached to a portion of the flexible delay line substrate that extends beyond one edge of the array.

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Номер записи: 78
02-02-2017 дата публикации

Active Waveguide Excitation and Compensation

Номер: US20170030871A1
Автор: Larsen Christopher G., Lobkis Oleg, Roth Richard A., Shelley Stuart J.
Принадлежит:

An environmental condition may be measured with a sensor () including a wire () having an ultrasonic signal transmission characteristic that varies in response to the environmental condition by sensing ultrasonic energy propagated through the wire using multiple types of propagation, and separating an effect of temperature on the wire from an effect of strain on the wire using the sensed ultrasonic energy propagated through the wire using the multiple types of propagation. A positive feedback loop may be used to excite the wire such that strain in the wire is based upon a sensed resonant frequency, while a square wave with a controlled duty cycle may be used to excite the wire at multiple excitation frequencies. A phase matched cone () may be used to couple ultrasonic energy between a waveguide wire () and a transducer (). 1. A method of measuring an environmental condition with a sensor of the type that includes a wire having an ultrasonic signal transmission characteristic that varies in response to the environmental condition , the method comprising:sensing ultrasonic energy propagated through the wire using multiple types of propagation; andseparating an effect of temperature on the wire from an effect of strain on the wire using the sensed ultrasonic energy propagated through the wire using the multiple types of propagation.2. The method of claim 1 , further comprising exciting the wire using the multiple types of propagation.3. The method of claim 2 , wherein exciting the wire using the multiple types of propagation comprises exciting the wire at multiple excitation frequencies.4. The method of claim 3 , wherein exciting the wire at multiple excitation frequencies comprises exciting the wire at a first excitation frequency that propagates ultrasonic energy primarily as a longitudinal wave claim 3 , and exciting the wire at a second excitation frequency that propagates ultrasonic energy primarily as a shear wave.5. The method of claim 1 , wherein separating the ...

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Номер записи: 79
04-02-2016 дата публикации

TRI-MODE PROBE WITH AUTOMATIC SKEW ADJUSTMENT

Номер: US20160033455A1
Автор: Knierim Daniel G., Muggli Christopher R., Pollock Ira G., Rockwell Martin
Принадлежит:

A probe, including a first input configured to receive a first input signal, a second input configured to receive a second input signal, a first cable connected to the first input, a second cable connected to the second input, an electronically adjustable delay connected to the first cable, the electronically adjustable delay configured to delay the first input signal to remove a skew between the first input signal and the second input signal, and an amplifier configured to receive the first input signal from the electronically adjustable delay and a second input signal. 1. A probe , comprising:a first input configured to receive a first input signal;a second input configured to receive a second input signal;an electronically adjustable delay connected to the first input, the electronically adjustable delay configured to delay the first input signal to remove a skew between the first input signal and the second input signal; andan amplifier configured to receive the first input signal from the electronically adjustable delay and the second input signal.2. The probe of claim 1 , wherein the electronically adjustable delay is a first electronically adjustable delay claim 1 , and the probe further comprises a second electronically adjustable delay connected to the second input claim 1 , the second electronically adjustable delay configured to delay the second input to remove the skew between the first input signal and the second input signal in combination with the first electronically adjustable delay.3. The probe of claim 1 , further comprising a processor connected to the electronically adjustable delay claim 1 , the processor configured to determine a delay adjustment amount.4. The probe of claim 1 , wherein the probe is a differential probe.5. The probe of claim 1 , wherein the probe is a TriMode probe claim 1 , and the probe further includes a third input configured to receive a ground signal.6. The probe of claim 1 , wherein the electronically adjustable delay ...

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Номер записи: 80
01-05-2014 дата публикации

Single channel scanning acoustic microscope with multiple focused ultrasonic transducers

Номер: US20140116143A1
Автор: Kessler Lawrence W., Komsky Igor N.
Принадлежит: Sonoscan, Inc.

A single channel scanning acoustic microscope that increases the throughput of the acoustic imaging system by connecting a multi-transducer assembly in parallel to a single channel electronic circuit. The single channel scanning acoustic microscope includes multiple transducers configured to generate a time delay for individual ultrasonic waves generated by each transducer, wherein a pulse generator simultaneously sends a pulse signal to the multi-transducer assembly. 1. A scanning acoustic microscope , comprising:a single channel electronic circuit configuration comprising a pulse generator, an amplifier, a digital format converter and a visual display;a plurality of transducers, wherein each transducer comprises an acoustic rod body, at least a piezoelectric and at least a lens, wherein each transducer generates an individual ultrasonic wave;wherein said plurality of transducers is configured to generate a proper time delay for said individual ultrasonic wave;wherein each transducer of said plurality of transducers is connected to said single channel electronic circuit configuration; andwherein said plurality of transducers is electrically coupled to the pulse generator for simultaneously receiving a pulse signal.2. The scanning acoustic microscope of claim 1 , comprising:a part under inspection;a fluid, wherein said fluid at least covers the distance between said plurality of transducers and said part under inspection;wherein the fluid located between each transducer and said part under inspection generates an individual fluid path for each transducer; andwherein said individual fluid path for each transducer generates an acoustic signal delay for each individual ultrasonic wave.3. The scanning acoustic microscope of claim 2 , wherein said acoustic signal delay comprises different lengths for each individual fluid path.4. The scanning acoustic microscope of claim 3 , wherein at least more than one transducer from the plurality of transducers are arranged to ...

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Номер записи: 81
05-02-2015 дата публикации

DETECTION OF CONTAMINATION STATUS FOR REFRIGERATOR ULTRASONIC SENSOR ASSEMBLY

Номер: US20150033822A1
Автор: Crosby Jonathan Charles, Doering Tyler James, Waugh Joseph Thomas
Принадлежит: GENERAL ELECTRIC COMPANY

Systems and methods for detecting a contamination status of an ultrasonic sensor assembly included in a refrigeration appliance are provided. An exemplary refrigerator includes a sensor assembly. The sensor assembly includes a first ultrasonic sensor configured to transmit an ultrasonic signal and a second ultrasonic sensor configured to receive the ultrasonic signal. The refrigerator is configured to perform operations comprising detecting whether the sensor assembly is contaminated based on one or more characteristics of the received ultrasonic signal. An exemplary method includes monitoring a change in a characteristic of a plurality of crosstalk components of a plurality of ultrasonic signals of over a period of time to detect a contaminated state of an ultrasonic sensor. 1. A refrigerator , comprising: a first ultrasonic sensor configured to transmit an ultrasonic signal; and', 'a second ultrasonic sensor configured to receive the ultrasonic signal;, 'a sensor assembly comprisingwherein the refrigerator is configured to perform operations comprising detecting whether the sensor assembly is contaminated based on one or more characteristics of the received ultrasonic signal.2. The refrigerator of claim 1 , wherein the one or more characteristics of the received ultrasonic signal comprises an amplitude of crosstalk received at the second ultrasonic sensor.3. The refrigerator of claim 2 , wherein detecting whether the sensor assembly is contaminated based on one or more characteristics of the received ultrasonic signal comprises comparing the amplitude of crosstalk to a threshold value.4. The refrigerator of claim 3 , wherein the refrigerator detects that the sensor assembly is contaminated when the amplitude of crosstalk is greater than the threshold value.5. The refrigerator of claim 3 , wherein the refrigerator is configured to perform further operations comprising performing a calibration routine upon a system initialization to obtain the threshold value.6. The ...

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Номер записи: 82
05-02-2015 дата публикации

DECODING PIN LOCKS

Номер: US20150033861A1
Автор: Nedwell Jeremy
Принадлежит:

In order to determine the particular cut possessed by a tumbler of a mechanical lock, the tumbler is stimulated with mechanical energy. The vibrational response of the tumbler is detected, and the detected response is used in determining which cut of the plurality of possible cuts the tumbler possesses. The cut of a lock tumbler is defined by its shape and/or size. For example, in the case of a pin-tumbler lock, the cut of a pin is defined by its length. Different cuts of tumbler will therefore exhibit different vibrational responses to stimulation by mechanical energy, and these different vibrational responses can be used to determine which cut the tumbler possesses, for example by comparing with the vibrational responses of real or modeled tumblers with known cuts. The response may be detected while the tumbler is being stimulated, and the responses to different frequencies of stimulation may be detected and processed. 123-. (canceled)24. A method of determining a particular cut possessed by a tumbler of a mechanical lock , the particular cut being one of a plurality of possible cuts , the method comprising the steps of:stimulating the tumbler with at least two frequencies of mechanical energy so that the tumbler vibrates;detecting the vibrational response of the tumbler to each of the stimulation frequencies; andprocessing the detected response in determining which cut of the plurality of possible cuts the tumbler possesses.25. A method as claimed in claim 24 , wherein:the response is detected while the tumbler is being stimulated.26. A method as claimed in claim 24 , wherein:the tumbler is stimulated at least two discrete stimulation frequencies in succession.27. A method as claimed in claim 24 , wherein:the tumbler is stimulated at a stimulation frequency which is swept substantially continuously between two values.28. A method as claimed in claim 24 , wherein:the tumbler is stimulated at least two different stimulation frequencies simultaneously.29. A method ...

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Номер записи: 83
05-02-2015 дата публикации

Method And System For Product Supply Chain Assurance

Номер: US20150033863A1
Автор: Kotler Jason S.T., Wrobel Miroslaw C.
Принадлежит:

A method for determining the purity or authenticity of a substance being transported in a container through a supply chain including providing an entry transmitter for generating a multi-frequency coded ultrasonic signal and an entry receiver for receiving said signal after it has passed through the substance and the container, generating an entry identifier of the substance in the container, recording said entry identifier at an entry point of said supply chain, transporting the substance in the container to a destination, providing an exit transmitter for generating a multi-frequency coded ultrasonic signal and an exit receiver for receiving said signal after it has passed through the substance and the container, generating an exit identifier of the substance in the container, and comparing said entry identifier and said exit identifier to determine whether the substance in the container has been altered during travel through the supply chain. 1. A method for determining the purity or authenticity of a substance being transported in a container through a supply chain comprising:a. providing an entry transmitter for generating a first multi-frequency coded ultrasonic signal and an entry receiver for receiving said first signal after it has passed through the container and through the substance;b. generating an entry identifier of the substance in the container based on said first ultrasonic signal;c. recording said entry identifier at an entry point of said supply chain;d. transporting the substance in the container to a destination;e. providing an exit transmitter for generating a second multi-frequency coded ultrasonic signal and an exit receiver for receiving said second signal after it has passed through the substance and the container;f. generating an exit identifier of the substance in the container based on said second ultrasonic signal; and,g. comparing said entry identifier and said exit identifier to determine whether the substance in the container has ...

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Номер записи: 84
17-02-2022 дата публикации

Highly-multiplexed nems-array readout system based on superconducting cavity optomechanics

Номер: US20220050064A1
Автор: Chung Wah Fon, Ewa Rej, Michael L. Roukes
Принадлежит: California Institute of Technology CalTech

A NEMS readout system includes a sensor array comprising a plurality of sensors. Each sensor of the plurality of sensors including a resonator with frequency characteristics different from the resonator of each other sensor of the plurality of sensors. A readout signal indicative of a plurality of output signals is collected from the sensor array. Each output signal of the plurality of output signals corresponding to one of the plurality of sensors. An analysis of the plurality of output signals is performed to identify a plurality of resonant frequencies and to detect a frequency shift associated with at least one of the plurality of resonant frequencies.

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Номер записи: 85
17-02-2022 дата публикации

SIGNAL PROCESSING

Номер: US20220050082A1
Автор: Mariani Stefano
Принадлежит:

A method of processing a signal is disclosed. The method comprises receiving a signal obtained from measuring a structure under a given set of environmental and/or operational conditions, the signal comprising a set of amplitude values which depend on position in the signal and adjusting the amplitude value each of at least two of the amplitude values independently according to the position of the amplitude value in the signal and according to the given environmental and/or operational conditions. 1. A method comprising:receiving a signal obtained from measuring a structure under a given set of environmental and/or operational conditions, the signal comprising a set of amplitude values which depend on position in the signal; andadjusting the amplitude value of each of at least two of the amplitude values independently according to the position of the amplitude value in the signal and according to the given environmental and/or operational conditions.2. The method of claim 1 , wherein the set of environmental conditions includes a temperature.3. The method of claim 1 , wherein the signal is a one-dimensional signal.4. The method of claim 1 , wherein the signal is a two-dimensional signal.5. The method of claim 1 , wherein the position in the signal corresponds uniquely to a position in the structure.6. The method of claim 1 , wherein adjusting each of the at least two amplitude values independently according to position in the signal comprises adjusting a majority claim 1 , substantially all or all of the amplitude values in the signal.7. The method of claim 1 , wherein the signal is obtained from an elastic wave measurement of the structure.8. The method of claim 7 , wherein the elastic wave is an ultrasonic wave.9. The method of claim 1 , wherein the signal is obtained from a guided wave measurement of the structure.10. The method of claim 1 , wherein the signal is obtained from a bulk wave measurement of the structure.11. The method of claim 1 , further comprising ...

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Номер записи: 86
30-01-2020 дата публикации

Liquid level detector

Номер: US20200033180A1
Автор: Atsushi Honda, Isao Miyagawa
Принадлежит: Denso Corp

A liquid level detector includes an ultrasonic sensor that emits an ultrasonic wave toward a liquid surface of liquid in a tank, a driving circuit unit that provides a driving signal to the ultrasonic sensor to emit the ultrasonic wave, a reception circuit unit that detects a reflected wave signal that corresponds to a reflected wave from a received signal received by the ultrasonic sensor, and an arithmetic control circuit unit that computes a level of the liquid surface with the reflected wave signal. The liquid level detector further includes an inclination detection unit that detects an inclination of the liquid surface relative to a virtual surface orthogonal to a direction of the ultrasonic wave and a driving condition computing circuit unit that instructs the driving circuit unit to increase a strength of the driving signal as the inclination of the liquid surface detected by the inclination detection unit increases.

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Номер записи: 87
30-01-2020 дата публикации

SYSTEM AND METHOD FOR DETECTING AND PROFILING RODENT ACTIVITY USING DETECTED ULTRASONIC VOCALIZATIONS

Номер: US20200033299A1
Автор: Frisch Jeffrey, Frisch Jonathan
Принадлежит:

A system for detecting rodent activity in an area. A series of detectors that calibrated to detect rodent vocalizations are placed in a geographic area. One or more of the detectors detect rodent vocalizations and transmits data notifying a central computer of detected vocalizations. The computer is provided with a program that generates a report of incidences and locations of detected vocalizations. 1. A system for detecting rodent activity , comprising:a series of ultrasound detectors that are calibrated to detect frequency ranges associated with vocalizations that are emitted by rodents, each of the ultrasound detectors of the series of ultrasound detectors further comprising a geolocation device;a central computer comprising one or more processors and computer-readable memory, the computer-readable memory comprising computer-readable instructions;the central computer configured to receive information from each of the ultrasound detectors relating to detected rodent vocalizations, the central computer further configured to receive location information from the geolocation device of each of the ultrasound detectors of the series of ultrasound detectors;and the one or more processors configured to read the computer-readable instructions from the computer-readable memory to generate a map of a geographic area, the map showing areas of detected vocalizations.2. The system of claim 1 , wherein the ultrasound detectors of the series of ultrasound detectors comprise a unique identifier and the central computer is further configured to receive information relating to the unique identifiers of the series of ultrasound detectors.3. The system of claim 2 , whereby the central computer identifies an ultrasound detector of the series of ultrasound detectors by the unique identifier.4. The system of claim 1 , whereby the central computer receives information from the series of ultrasound detectors by way of a router.5. The system of claim 1 , wherein the map comprises a sector ...

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Номер записи: 88
04-02-2021 дата публикации

SYSTEMS AND METHODS OF CAPTURING TRANSIENT ELASTIC VIBRATIONS IN BODIES USING ARRAYS OF TRANSDUCERS FOR INCREASED SIGNAL TO NOISE RATIO AND SOURCE DIRECTIONALITY

Номер: US20210033567A1
Автор: Burks Brian M., Ziola Steven M.
Принадлежит: HEXAGON TECHNOLOGY AS

Provided herein are systems and methods for real time processing of signals from an array of transducers for detecting transient elastic waves originating from unknown locations in a body, which may propagate in a dispersive fashion. The systems and methods allow real time combination and analysis of signals, including decisions regarding storage as new data is received. The methods described herein include designing arrays of detectors and methods for processing signals in real time given the constraints of the body under test determining whether to store the set of information while a new set of information is received for processing within a real time environment. The methods described herein include methods which result in the determination or small time shifts which place all signals into a coherent time base which are then combined achieving a composite waveform that possesses an increased signal-to-noise ratio over any single element. 1. A method comprising:determining in real time whether to store in a computer memory a first set of samples from a plurality of signals from a multi-element transducer array that is coupled to a body of material under test within a real time processing environment, wherein:(a) the first set of samples represents a first time range and ends with a first boundary set of samples that are later also processed along with a second set of samples representing the plurality of signals for a second time range possessing a necessary overlap at the end of the first time range, thereby creating an overlapping plurality of processed samples including samples that are processed with the first set of samples and processed with the second set of samples; i. sensed by a first portion of the multi-element transducer array during the first time range; and', 'ii. sensed by a second portion of the multi-element transducer array during the second time range;, '(b) wherein the overlapping plurality of processed samples is sufficient to capture in the ...

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Номер записи: 89
04-02-2021 дата публикации

Continuous Sonic Wave Analyzer

Номер: US20210033585A1
Автор: DEMPSTER Philip Tinsley
Принадлежит:

A gas analyzer uses continuous sonic signals through a conduit to determine the composition of a gas in the conduit. A transmitting transducer drives sonic signals at a fixed frequency and a second transducer receives the sonic signals. The phase shift between two signals corresponds to the speed of sound through the gas and is related to the composition of the gas. The electronic versions of these signals are processed by lowering, or dividing, the fixed frequency which expands the range of phase shift measurement and allows the determination of an expanded range for the gas composition. In an ozone generation system, the gas analyzer is highly suitable for determining the composition of gases derived from air as a gas of known composition and a calibration point. 1. An analyzer for one or more gases derived from a first gas of known composition and speed of sound , each derived gas having a concentration of a component changed , the analyzer comprising:a first transducer, the first transducer unit driving continuous sound waves responsive to a fixed frequency signal source;a conduit acoustically connected to the first transducer, the conduit selectively receiving and holding samples of the first gas and one or more derived gases;a second transducer acoustically connected to the conduit opposite the first transducer unit, the second transducer receiving sound waves from the first transducer through the conduit and generating second transducer signals responsive to the received sound waves;a processing unit receiving fixed frequency signal source signals and the second transducer signals, the processing unit determining a relative phase shift between the frequency source signals and second transducer signals for a gas sample in the conduit, the relative phase shift corresponding to a difference of speed of sound in one gas sample relative to another gas sample, the processing unit including circuitry lowering the frequency of the received fixed frequency source ...

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Номер записи: 90
11-02-2016 дата публикации

Automatic calibration method for checking by ultrasound a composite material structure during production

Номер: US20160041130A1
Автор: Hubert Voillaume, Stéphane Auffray
Принадлежит: AIRBUS GROUP SAS, EUROPEAN AERONAUTIC DEFENCE AND SPACE COMPANY EADS FRANCE

A monitoring system comprising ultrasound sensors to monitor the structure of a composite material part during production is automatically calibrated using reference sensors mounted on reference blocks and placed in the production environment of the part. The automatic calibration comprises actuating a reference sensor to transmit an ultrasonic wave and measuring the amplitude of a reference echo constituted by the transmitted ultrasonic wave after it has passed through the reference block. The measured amplitude is compared to a set point value and the gain is applied to the reference sensor to obtain an amplitude value of the reference echo substantially equal to the set point value. The gain applied to the reference sensor is applied to the ultrasound sensors of the same type as the reference sensor. The operation is performed for each reference sensor, and successively for all of the stages of production of the part.

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Номер записи: 91
09-02-2017 дата публикации

DEVICE FOR INSPECTING A STRUCTURE

Номер: US20170038340A1
Автор: DEMMA Alessandro, GALVAGNI Andrea
Принадлежит:

There is presented a device for being secured to a structure. The device comprising a first portion comprising an element configured to impart mechanical waves to the structure upon application of a voltage and a second portion supporting the element and comprising a body. The body may be elastomeric, flexible, or both. The first and second portions are configured such that the element reacts against the second portion to generate mechanical waves at least partially within the structure. The body attenuates mechanical waves propagating from the first portion and away from the structure. A securing device for securing a mechanical wave generator to a structure and a system comprising the securing device are also presented. 137.-. (canceled)38. A device for being secured to a structure , the device comprising:A) a first portion comprising an element configured to impart mechanical waves to the structure upon application of a voltage, and,B) a second portion supporting the element and comprising a body; wherein the first and second portions are configured such that:the element reacts against the second portion to generate mechanical waves at least partially within the structure;the body attenuates mechanical waves propagating from the first portion and away from the structure,wherein the second portion is flexible and/or the body comprises elastomeric material.39. A device as claimed in configured to be secured to the structure by a securing device.40. A device as claimed in wherein the second portion is configured to electrically isolate the element from the securing device.41. A device as claimed in wherein the body has a Mooney viscosity of at least 50.42. A device as claimed in wherein the body has a Shore A hardness of 50 or higher.43. A device as claimed in wherein the element is a piezoelectric transducer.44. A device as claimed in wherein the element configured to impart mechanical waves comprises a shear polarised piezoelectric transducer.45. A device as ...

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Номер записи: 92
09-02-2017 дата публикации

IMPROVEMENTS IN OR RELATING TO SONAR APPARATUS

Номер: US20170038344A1
Автор: BROWN Keith Edgar, CAPUS Christopher Glyn, Pailhas Yan
Принадлежит:

A method of determining at least part of the structure of an object the method comprising the steps of providing at least one wideband acoustic signal transmission and reception device, the at least one wideband acoustic signal transmission and reception device being capable of transmitting and receiving one or more wideband acoustic signals, using the at least one wideband acoustic signal transmission and reception device to transmit at least one wideband acoustic signal towards at least a portion of the object, using the at least one wideband acoustic signal transmission and reception device to receive at least one wideband acoustic signal from the object, using the received at least one wideband acoustic signal from the object to createat least one acoustic data set, and analysing the at least one acoustic data set to determine the at least part of the structure of the object. 1. A method of determining at least part of the structure of an object , the method comprising the steps of:providing at least one wideband acoustic signal transmission and reception device, the at least one wideband acoustic signal transmission and reception device being capable of transmitting and receiving one or more wideband acoustic signals;using the at least one wideband acoustic signal transmission and reception device to transmit at least one wideband acoustic signal towards at least a portion of the object;using the at least one wideband acoustic signal transmission and reception device to receive at least one wideband acoustic signal from the object;using the received at least one wideband acoustic signal from the object to create at least one acoustic data set; andanalysing the at least one acoustic data set to determine the at least part of the structure of the object.2. The method of claim 1 , wherein the at least one wideband acoustic signal transmission and reception device has a Q factor of less than 2.0.3. The method of claim 1 , wherein the at least one wideband acoustic ...

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Номер записи: 93
24-02-2022 дата публикации

Assembly and method for measuring strain in a washer

Номер: US20220057282A1
Автор: HJELSTUEN Magnus, KOLBERG Sigbjørn, REINEN Tor Arne
Принадлежит:

The invention relates to a solution for how to measure the strain in a washer mounted in a bolt assembly comprising a bolt, nut and washer. The invention concerns a strain measuring washer assembly comprising a plate shaped washer body, sound emitting means and sound detecting means, and a method for using such. 1. A strain measuring washer assembly comprising:a plate shaped washer body, at least provided with a washer body central opening extending through the plate shaped washer body, a washer body outer peripheral surface, and a closed internal cavity surrounding the washer body central opening;sound emitting means, positioned on the washer body outer peripheral surface and configured to emit a sound signal into the plate shaped washer body; andsound detecting means positioned on the washer body outer peripheral surface and configured to detect an echo response of the sound signal from the plate shaped washer body.2. The strain measuring washer assembly according to claim 1 , where the plate shaped washer body is further provided with a second internal cavity connected with the closed internal cavity.3. The strain measuring washer assembly according to claim 1 , where the plate shaped washer body is further provided with an internal reference cavity isolated from any other internal cavity of the plate shaped washer body.4. The strain measuring washer assembly according to claim 1 , where the plate shaped washer body comprises a base plate body and lid claim 1 , wherethe base plate body is at least provided with a base plate body central opening extending through the base plate body, a base plate body outer peripheral surface, and a closed recess on a base plate body top side surrounding the base plate body central opening and extending within boundaries defined by the base plate body central opening and a base plate body outer periphery, and wherethe lid is configured to be fused to the base plate body top side, forming one integral plate shaped washer body where ...

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Номер записи: 94
12-02-2015 дата публикации

METHOD AND SYSTEM OF NON-DESTRUCTIVE TESTING FOR COMPOSITES

Номер: US20150046098A1
Автор: Fitch John E., Jack David A., Vo Theresa
Принадлежит: BAYLOR UNIVERSITY

Method and system are disclosed for characterizing and quantifying composite laminate structures. The method and system take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The method and system can distinguish between weave types that may exhibit similar planar stiffness behaviors, but would produce different failure mechanisms. Individual ply information may then be used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties may then be used to generate a probabilistic failure envelope for the composite laminate. This provides the ability to perform non-destructive QA to ensure that individual lamina layup was accomplished according to specifications, and results may be used to identify a numerous laminate properties beyond purely structural. 1. A computer-aided non-destructive method of quantifying individual laminas in a composite laminate , the method comprising:receiving composite scan data by a processor, the composite scan data representative of a composite scan of the composite laminate, the composite scan data indicating, for each one of an array of spatial locations across a surface of the composite laminate, signal intensity and signal time-of-flight for a signal reflected and refracted off material transitions within the composite laminate;determining one or more lamina properties by the processor based on the composite scan data, the one or more lamina properties including number of individual laminas, fiber orientation of each individual lamina, ply type, including unidirectional or weave, weave type, and thickness of each individual lamina;calculating a failure load for the individual laminas by the processor based on the one ...

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Номер записи: 95
07-02-2019 дата публикации

SYSTEM AND METHOD FOR A REFERENCE CHAMBER WITH A HOUSING AND A DEFLECTABLE STRUCTURE

Номер: US20190041363A1
Автор: Dehe Alfons, Tumpold David
Принадлежит:

A reference chamber for a fluid sensor comprises a housing, a deflectable structure, which is arranged movably within the housing, a control device configured to drive the deflectable structure at a first point in time such that the deflectable structure assumes a defined position, and to drive the deflectable structure at a second point in time such that the deflectable structure moves out of the defined position and a movement of the deflectable structure in the housing is obtained. The reference chamber comprises an evaluation device configured to determine a movement characteristic of the movement of the deflectable structure on the basis of the moving into the defined position or on the basis of the moving out of the defined position and to determine an atmospheric property in the housing on the basis of the movement characteristic. 1. A reference chamber for a fluid sensor , comprising:a housing;a deflectable structure, which is arranged movably within the housing;a control device configured to drive the deflectable structure at a first point in time to cause the deflectable structure to move into a defined position, and to drive the deflectable structure at a second point in time to cause the deflectable structure to move out of the defined position, wherein movement of the deflectable structure in the housing is obtained; andan evaluation device configured to determine a movement characteristic of the movement of the deflectable structure based on the moving into the defined position or based on the moving out of the defined position, and to determine an atmospheric property in the housing based on the movement characteristic.2. The reference chamber as claimed in claim 1 , further comprising an electrode pair claim 1 , wherein the deflectable structure has a first electrode of the electrode pair claim 1 , and wherein a second electrode of the electrode pair is arranged adjacent to the first electrode; and wherein the control device is configured to drive ...

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Номер записи: 96
06-02-2020 дата публикации

METHOD AND SYSTEM FOR MEASURING A WIDEBAND LOOP SENSITIVITY FOR AN ACOUSTIC TRANSDUCER

Номер: US20200041461A1
Автор: LAI Wen-Pin, YANG Fu-Chieh, YAO Jen-Chih, YUAN Ying-Wei
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A method and system is disclosed for measuring a wideband loop sensitivity S(f) for an acoustic transducer in an acoustic probe. A pulse signal is employed as a wideband reference signal V(t); and, in a pulse-echo measurement a corresponding wideband echo signal V(t) is obtained. A normalized loop frequency response {circumflex over (X)}(f) for the acoustic transducer is defined as a ratio of a Fourier Transform of the V(t) to a Fourier Transform of the V(t). A wideband loop sensitivity S(f) for the acoustic transducer is defined as an absolute square of the {circumflex over (X)}(f) in decibel. 1. A system for measuring a wideband loop sensitivity for an acoustic transducer among a plurality of acoustic transducers in an acoustic probe , the system comprising:a pulse generator; anda control unit electrically coupled to the pulse generator,whereinthe pulse generator is configured to be selectively electrically coupled to a predetermined load for generating, by the pulse generator, a first pulse to create a wideband signal as a reference signal, and [{'sub': 'r', 'obtain a wideband reference signal V(t), and'}, {'sub': r', 'r, 'obtain a function {circumflex over (V)}(f) that is a Fourier Transform of the wideband reference signal V(t).'}], 'the control unit includes a memory storing therein a program or firmware for causing the control unit to'}2. The system as claimed in claim 1 , wherein the first pulse is one of a unipolar pulse and a bipolar pulse.3. The system as claimed in claim 2 , wherein the unipolar pulse is one of a negative-going pulse and a positive-going pulse.4. The system as claimed in claim 2 , wherein the bipolar pulse is a negative-going pulse first and a positive-going pulse second.5. The system as claimed in claim 2 , wherein the bipolar pulse is a positive-going pulse first and a negative-going pulse second.6. The system as claimed in claim 1 , wherein{'sub': 'r', 'the control unit is further configured to store the function {circumflex over (V ...

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Номер записи: 97
06-02-2020 дата публикации

ELECTRICAL MEASUREMENT CIRCUIT, GAS DETECTOR AND METHOD FOR MEASURING A GAS CONCENTRATION

Номер: US20200041462A1
Автор: AOUST Guillaume, GAUDINEAU Vincent, Guerard Jean, Le Traon Olivier, Levy Raphael, VERLHAC Béatrice
Принадлежит:

An electric measurement circuit possesses an electrical reaction leg for forming an oscillator from a resonator, and furthermore possesses a measurement leg the input of which is supplied by the electrical reaction leg. The measurement leg contains an adjustable phase shifter so that an additional excitation force that is applied to the resonator in the measurement leg can be adjusted in phase quadrature with respect to an excitation force that is applied to the resonator in the electrical reaction leg. Such an electrical measurement circuit is particularly suitable for forming a photoacoustic gas detector. 21. The electrical measurement circuit according to claim 1 , wherein the resonator () is of the vibrating quartz element type claim 1 , for example the quartz tuning fork type claim 1 , or of the vibrating silicon element type claim 1 , for example the silicon tuning fork type.322122. The electrical measurement circuit according to claim 1 , wherein the feedback electric branch () comprises an amplifier () and a phase shifter () which are combined in series claim 1 , or comprises a phase-locked loop assembly.7. The gas detector according to claim 6 , wherein the modulatable laser is modulatable in wavelength or radiation power for the radiation beam (FX) which originates from this modulatable laser.81. The gas detector according to claim 6 , wherein the resonator () comprises a tuning fork claim 6 , and the modulatable laser is oriented so that the radiation beam (FX) which originates from said modulatable laser is perpendicular to two tines of the tuning claim 6 , and passes between the two tines of the tuning fork in a plane of symmetry of said tuning fork claim 6 , or passes on one side of one of the two tines of the tuning fork which is opposite from the other tine.9. A method for measurement of a concentration of a gas claim 6 , comprising the following steps:{'claim-ref': {'@idref': 'CLM-00006', 'claim 6'}, '/1/selecting a gas detector which complies with ...

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Номер записи: 98
19-02-2015 дата публикации

PHOTOACOUSTIC WAVE MEASUREMENT DEVICE, METHOD, PROGRAM, AND RECORDING MEDIUM

Номер: US20150047433A1
Автор: Ida Taiichiro, Kawaguchi Yasushi
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A photoacoustic wave measurement device includes: (a) a pulsed-light outputter that outputs a pulsed light; (b) an arrangement member disposed between a pulsed-light output end of the pulsed-light outputter and a measurement object, the arrangement member being adapted to allow the pulsed light to pass therethrough; and (c) a photoacoustic wave detector that receives a photoacoustic wave generated by the measurement object by the pulsed light and that converts the photoacoustic wave into an electric signal, the photoacoustic wave measurement device being adapted to receive the electric signal from a photoacoustic wave sensor in which the photoacoustic wave detector is farther from the measurement object than the pulsed-light output end. The photoacoustic wave measurement device further includes: an electric signal recording section that receives and records the electric signal from the photoacoustic wave sensor; a noise timing estimation section that estimates timing of occurrence of noise in the electric signal, from a thickness of the arrangement member; and a noise removal section that removes the electric signal at the timing estimated, from contents recorded by the electric signal recording section. 1. A photoacoustic wave measurement device comprising:(a) a pulsed-light outputter that outputs a pulsed light; (b) an arrangement member disposed between a pulsed-light output end of the pulsed-light outputter and a measurement object, the arrangement member being adapted to allow the pulsed light to pass therethrough; and (c) a photoacoustic wave detector that receives a photoacoustic wave generated by the measurement object by the pulsed light and that converts the photoacoustic wave into an electric signal, the photoacoustic wave measurement device being adapted to receive the electric signal from a photoacoustic wave sensor in which the photoacoustic wave detector is farther from the measurement object than the pulsed-light output end, whereinthe photoacoustic ...

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Номер записи: 99
18-02-2021 дата публикации

Ultrasonic inspection method

Номер: US20210048412A1
Автор: Akihiro Nara
Принадлежит: Yamaha Fine Technologies Co Ltd

An ultrasonic inspection method that includes arranging an ultrasonic transmission element and an ultrasonic reception element symmetrically in relation to a straight line in a diameter direction orthogonal to the cylinder axis of a cylindrical inspection object, the inspection object being interposed between the ultrasonic transmission element and the ultrasonic reception element; transmitting ultrasonic waves from the ultrasonic transmission element at a plurality of positions in the diameter direction; receiving by the ultrasonic reception element the ultrasonic waves transmitted from the ultrasonic transmission element and transmitted through the inspection object by propagating through the inside of the inspection object; and inspecting the inspection object on the basis of a reception signal of the ultrasonic waves received by the ultrasonic reception element.

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Номер записи: 100