SU832451A2 - Ultrasonic flaw detector - Google Patents
Ultrasonic flaw detector Download PDFInfo
- Publication number
- SU832451A2 SU832451A2 SU772482691A SU2482691A SU832451A2 SU 832451 A2 SU832451 A2 SU 832451A2 SU 772482691 A SU772482691 A SU 772482691A SU 2482691 A SU2482691 A SU 2482691A SU 832451 A2 SU832451 A2 SU 832451A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ultrasonic flaw
- flaw detector
- delay
- strobe
- input
- Prior art date
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
ле их детектировани поступают на вход формировател 10 строб-импульсов и через каскад 5 задержки - на вход каскада б совпадений. Формирователь 10 вырабатывает строб-импульсы, длительность которых соответствуют длительност м выходных сигналов.усилител -детектора 4 на выбранном уровне отсечки помех.After their detection, they arrive at the input of the strobe pulse generator 10 and, through a delay stage 5, to the input of the coincidence stage b. The shaper 10 produces strobe pulses, the duration of which corresponds to the duration of the output signals. Amplifier detector 4 at a selected level of interference cutoff.
Однако из-за инерционности формировател 10 строб-импульсы оказываютс задержанными на врем tjo. относительно временных положений сигналов на выбранном уровне.However, due to the inertia of the gate driver 10, the strobe pulses are delayed by the time tjo. relative to the temporal positions of the signals at the selected level.
Полученные строб-импульсы поступают на вход каскада 6 совпадений, с помощью которой осуществл етс временна селекци продетектированных сигналов от помех.The received strobe pulses are fed to the input of a cascade of 6 coincidences, with the help of which time-based selection of the detected signals from interference is carried out.
Компенсаци задержки строб-импульсов осуществл етс каскадом 5 задержки , дл чего врем задержки выбираетс равным времени задержки стробИмпульсов .The strobe delay is compensated by a delay stage 5, for which the delay time is chosen equal to the strobe / pulse delay time.
Предлагаемое изобретение позвол ет повысить точность оценки размеров дефектов за счет введени каскада задержки, с помощью которого устран етс искажение формы полезных сигналов .The present invention makes it possible to improve the accuracy of estimating the size of defects by introducing a delay cascade, with the help of which the distortion of the shape of useful signals is eliminated.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772482691A SU832451A2 (en) | 1977-05-04 | 1977-05-04 | Ultrasonic flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772482691A SU832451A2 (en) | 1977-05-04 | 1977-05-04 | Ultrasonic flaw detector |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU757976 Addition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU832451A2 true SU832451A2 (en) | 1981-05-23 |
Family
ID=20707628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772482691A SU832451A2 (en) | 1977-05-04 | 1977-05-04 | Ultrasonic flaw detector |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU832451A2 (en) |
-
1977
- 1977-05-04 SU SU772482691A patent/SU832451A2/en active
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