SU926598A1 - Device for checking articles by acoustic emission signals - Google Patents
Device for checking articles by acoustic emission signals Download PDFInfo
- Publication number
- SU926598A1 SU926598A1 SU802982508A SU2982508A SU926598A1 SU 926598 A1 SU926598 A1 SU 926598A1 SU 802982508 A SU802982508 A SU 802982508A SU 2982508 A SU2982508 A SU 2982508A SU 926598 A1 SU926598 A1 SU 926598A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- differentiator
- output
- adder
- matching
- amplifier
- Prior art date
Links
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
(5) УСТРОЙСТВО ДЛЯ КОНТРОЛЯ ИЗДЕЛИЙ ПО СИГНАЛАМ АКУСТИЧЕСКОЙ ЭМИССИИ(5) DEVICE FOR MONITORING PRODUCTS BY ACOUSTIC EMISSION SIGNALS
II
Изобретение относитс к неразрушающему контролю качества изделий и может быть использовано дл измерени качества сигналов акустической эмиссии и определени моментов их по влени .The invention relates to non-destructive quality control of products and can be used to measure the quality of acoustic emission signals and determine the moments of their occurrence.
Известно устройство дл контрол изделий по сигналам акустической эмиссии, которое содержит соединенные последовательно электроакустический преобразователь, усилитель, блок измерени параметров сигнала и другие блоки 11..A device for monitoring products by acoustic emission signals is known, which contains electroacoustic transducers connected in series, an amplifier, a unit for measuring signal parameters, and other units 11.
Недостатком этого устройства вл етс низка разрешающа способность сигналов, следующих друг за другом с интервалом, меньшим, чем 5-7 периодов колебаний сигнала.A disadvantage of this device is the low resolution of signals following each other at intervals less than 5-7 periods of signal oscillations.
Наиболее близкое к предлагаемому по технической сущности устройство дл контрол изделий по сигналам акустической эмиссии содержит соединенные последовательно электроакустический преобразователь, усилитель.Closest to the proposed by the technical nature of the device for the control of products by acoustic emission signals contains connected in series electroacoustic transducer, amplifier.
сумматор и блок измерени параметров сигнала, а также первый дифференциатор 2.an adder and a unit for measuring signal parameters, as well as a first differentiator 2.
Недостатком этого устройства вл етс низка разрешающа способность, обусловленна тем, что сигналы акустической эмиссии, по вившиес в точке приема через интервал времени, меньший чем некотора величина tj, сливаютс вместе и регистрируютс A disadvantage of this device is the low resolution, due to the fact that acoustic emission signals, which have increased at the reception point over a time interval smaller than a certain value of tj, are merged together and are recorded
10 как один.10 as one.
Цель изобретени - повышение разрешающей способности.The purpose of the invention is to increase the resolution.
Указанна цель достигаетс тем, This goal is achieved by
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802982508A SU926598A1 (en) | 1980-09-12 | 1980-09-12 | Device for checking articles by acoustic emission signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802982508A SU926598A1 (en) | 1980-09-12 | 1980-09-12 | Device for checking articles by acoustic emission signals |
Publications (1)
Publication Number | Publication Date |
---|---|
SU926598A1 true SU926598A1 (en) | 1982-05-07 |
Family
ID=20917896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU802982508A SU926598A1 (en) | 1980-09-12 | 1980-09-12 | Device for checking articles by acoustic emission signals |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU926598A1 (en) |
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1980
- 1980-09-12 SU SU802982508A patent/SU926598A1/en active
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