SU634189A1 - Pulsed flaw detector - Google Patents
Pulsed flaw detectorInfo
- Publication number
- SU634189A1 SU634189A1 SU772506138A SU2506138A SU634189A1 SU 634189 A1 SU634189 A1 SU 634189A1 SU 772506138 A SU772506138 A SU 772506138A SU 2506138 A SU2506138 A SU 2506138A SU 634189 A1 SU634189 A1 SU 634189A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pulsed
- flaw detector
- circuit
- oscillations
- multivibrator
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
пульсов формировател 5, реализованного с помощью автоколебательного мультивибратора, на выходе ждущего мультивибратора 3 вырабатываютс короткие импульсы, которые усиливаютс по мощности усилителем 2 и возбуждают колебани в контуре 1.pulse generator 5, implemented using a self-oscillating multivibrator, the output of the standby multivibrator 3 produces short pulses that are amplified by the power of amplifier 2 and initiate oscillations in circuit 1.
Эти копебаш1Я преобразуютс формирователем 6 в последовательность пр моугольных имимлульсов , которые также поступают на ждущий мультивибратор 3, усиливаютс и в дальнейшем поддерживают колебани в контуре 1 на его резонансной частоте.These cobrakes are transformed by shaper 6 into a sequence of rectangular im- pulses, which also enter the stand-by multivibrator 3, amplify and further support oscillations in circuit 1 at its resonant frequency.
При вожикновении колебаний в контуре 1 формирователь запускающих пр моугольных импульсов отключаетс с помощью сигнала на выходе чейки 4 запрета. Тем самым достигаетс автоматический запуск импульсного дефектоскопа при его включении, а благодар использованию импульснсм-о метода компенсации потерь в контуре достигаетс инвариантность к электропроводности контролируемого издели х.In the event of oscillations in circuit 1, the driver of the triggering rectangular pulses is switched off by means of a signal at the output of the prohibition cell 4. Thereby, an automatic start of a pulse flaw detector is achieved when it is turned on, and due to the use of a pulse-cm loss compensation method, the invariance to the electrical conductivity of the controlled products is achieved.
Использование импульсного возбуждени резонансных колебаний в контуре выгодно от;шчает предлагаемый импульсный дефектоскоп от известных автогенераторных дефектоскопов, так как исключаетс снижение чувствительности дефектоскопа в широком диапазоне электропроводностей различных изделий за счет устранени нелинейных преобразований.The use of pulsed excitation of resonant oscillations in the circuit is advantageous from the proposed pulsed defectoscope from known self-generating defectoscopes, since a reduction in the sensitivity of the detector is excluded in a wide range of electrical conductivities of various products by eliminating nonlinear transformations.
Преобразователь в процессе контрол перемещаетс над поверхностью контролируемого издели .In the control process, the converter moves over the surface of the test article.
Наличие дефекта приводит к изменению сигнала, индикатора 7, по которому суд т о качестве издели . The presence of a defect leads to a change in the signal, indicator 7, according to which the quality of the product is judged.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772506138A SU634189A1 (en) | 1977-07-11 | 1977-07-11 | Pulsed flaw detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772506138A SU634189A1 (en) | 1977-07-11 | 1977-07-11 | Pulsed flaw detector |
Publications (1)
Publication Number | Publication Date |
---|---|
SU634189A1 true SU634189A1 (en) | 1978-11-25 |
Family
ID=20717409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772506138A SU634189A1 (en) | 1977-07-11 | 1977-07-11 | Pulsed flaw detector |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU634189A1 (en) |
-
1977
- 1977-07-11 SU SU772506138A patent/SU634189A1/en active
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