RU95101389A - Method and device testing ultrasonic echo-pulse instruments - Google Patents

Method and device testing ultrasonic echo-pulse instruments

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Publication number
RU95101389A
RU95101389A RU95101389/28A RU95101389A RU95101389A RU 95101389 A RU95101389 A RU 95101389A RU 95101389/28 A RU95101389/28 A RU 95101389/28A RU 95101389 A RU95101389 A RU 95101389A RU 95101389 A RU95101389 A RU 95101389A
Authority
RU
Russia
Prior art keywords
parameters
pulses
radio
attenuator
controlled
Prior art date
Application number
RU95101389/28A
Other languages
Russian (ru)
Other versions
RU2087908C1 (en
Inventor
А.А. Марков
А.А. Зенченко
Original Assignee
А.А. Марков
А.А. Зенченко
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by А.А. Марков, А.А. Зенченко filed Critical А.А. Марков
Priority to RU95101389A priority Critical patent/RU2087908C1/en
Publication of RU95101389A publication Critical patent/RU95101389A/en
Application granted granted Critical
Publication of RU2087908C1 publication Critical patent/RU2087908C1/en

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

FIELD: medical diagnostics, nondestructive testing. SUBSTANCE: amplitude and time characteristics of ultrasonic instruments are tested by comparison of specified (standard time interval and amplitude increment with their values measured with the aid of tested instrument. Formation of standard parameters is carried out by means of device composed of acoustically conductive medium, electroacoustic converter, two-position commutator, amplifier, pulse normalizer, paired pulse generator, radio pulse generator, controlled attenuator, second commutator and attenuator with fixed (standard) attenuation connected in series. Meter of parameters of radio pulses is placed between output of amplifier and controlled input of controlled attenuator, single-shot multivibrator is placed between output of normalizer and controlled input of two-position commutator. Method is realized by reception of acoustic (probing) oscillations of tested instrument through acoustically conductive medium, by measurement of their parameters, by generation of two pulses, by formation of two radio pulses with allowance for parameters of received oscillations, by re-emission of acoustic radio pulses through medium, by their reception with tested instrument, by their conversion to electric pulses, by measurement of their parameters and their comparison with standard ones. EFFECT: increased functional efficiency of method and device. 8 cl, 2 dwg

Claims (1)

Способ и устройство поверки ультразвуковых эхо-импульсных приборов предназначены для применения в области медицинской диагностики и технического неразрушающего контроля. Поверку амплитудных и временных характеристик ультразвуковых приборов осуществляют путем сопоставления заданных (эталонных) временного интервала и амплитудного приращения с измеренными с помощью поверяемого прибора. Формирование эталонных параметров осуществляют с помощью устройства, состоящего из акустически проводящей среды, последовательно соединенных электроакустического преобразователя, двухпозиционного коммутатора, усилителя, нормализатора импульсов, генератора парных импульсов, генератора радиоимпульсов, управляемого аттенюатора, второго коммутатора и аттенюатора с фиксированным (эталонным) ослаблением. Причем между выходом усилителя и управляемым входом управляемого аттенюатора включен измеритель параметров радиоимпульсов, а между выходом нормализатора и управляемым входом двухпозиционного коммутатора включен ждущий мультивибратор. Способ реализуют путем приема акустических (зондирующих) колебаний поверяемого прибора через акустически проводящую среду, измерения их параметров, генерации двух импульсов, формирования двух радиоимпульсов с учетом параметров принятых колебаний, переизлучения акустических радиоимпульсов через среду, приема поверяемым прибором, преобразования в электрические импульсы, измерения параметров и сопоставления с эталонными.The method and device for testing ultrasonic echo-pulse devices are intended for use in the field of medical diagnostics and technical non-destructive testing. Verification of the amplitude and time characteristics of ultrasonic devices is carried out by comparing the specified (reference) time interval and the amplitude increment with those measured using the device being verified. The formation of reference parameters is carried out using a device consisting of an acoustically conductive medium, serially connected electroacoustic transducer, on-off switch, amplifier, pulse normalizer, pair pulse generator, radio pulse generator, controlled attenuator, second switch and attenuator with fixed (reference) attenuation. Moreover, between the output of the amplifier and the controlled input of the controlled attenuator, a meter of parameters of radio pulses is turned on, and between the output of the normalizer and the controlled input of the on-off switch, the standby multivibrator is turned on. The method is implemented by receiving acoustic (sounding) vibrations of the device under test through an acoustically conductive medium, measuring their parameters, generating two pulses, generating two radio pulses taking into account the parameters of the received vibrations, re-emitting the acoustic radio pulses through the medium, receiving the calibrated device, converting into electrical pulses, converting into electrical pulses, measuring parameters and benchmark comparisons.
RU95101389A 1995-02-02 1995-02-02 Method and device for verifying ultrasonic echo-pulse instruments RU2087908C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95101389A RU2087908C1 (en) 1995-02-02 1995-02-02 Method and device for verifying ultrasonic echo-pulse instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95101389A RU2087908C1 (en) 1995-02-02 1995-02-02 Method and device for verifying ultrasonic echo-pulse instruments

Publications (2)

Publication Number Publication Date
RU95101389A true RU95101389A (en) 1996-11-20
RU2087908C1 RU2087908C1 (en) 1997-08-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU95101389A RU2087908C1 (en) 1995-02-02 1995-02-02 Method and device for verifying ultrasonic echo-pulse instruments

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RU (1) RU2087908C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101627219B1 (en) * 2008-04-29 2016-06-03 엘지전자 주식회사 Home appliance and home appliance system

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Publication number Publication date
RU2087908C1 (en) 1997-08-20

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Effective date: 20100203