SU1045112A1 - Electromagnetic flaw detector - Google Patents
Electromagnetic flaw detector Download PDFInfo
- Publication number
- SU1045112A1 SU1045112A1 SU823455639A SU3455639A SU1045112A1 SU 1045112 A1 SU1045112 A1 SU 1045112A1 SU 823455639 A SU823455639 A SU 823455639A SU 3455639 A SU3455639 A SU 3455639A SU 1045112 A1 SU1045112 A1 SU 1045112A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- flaw detector
- output
- integrator
- electromagnetic flaw
- defects
- Prior art date
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
Cpue.i 3 . 10 сигналы только положительной пол рно сти. На его выход проход т сигналы от ужимов, а остальные сигналы подавл ют с , в том числе и некоррелированные шумы, например сигнала от радиальных смещений трубы, возникающие s вихретоковом канале 2, и сигналы индукци онного канала 3 от малых изменен/.й поперечного.сечени трубы, поэтому на выходе одноквадратного перемножител 6 повышаетс отношение сигнал/шум дл дефектов типа ужим (диаграмма 11),, 24 Выходные сигналы интегратора 5 и блока выделени сигнала используютс дл дальнейшей обработки , с целью выделени локальных отклонений стенки трубы и непровара шва. Дефектоскоп позвол ет повысить вы вл емость дефектов типа ужим при сох ранении высокой чувствительности к дефектам типа непровар и утонение,что повышает достоверность контрол труб печной сварки.Cpue.i 3. 10 signals of only positive polarity. Signals from clamps pass to its output, and the remaining signals are suppressed with, including uncorrelated noise, such as a signal from radial displacements of the pipe, arising from eddy current channel 2, and signals from inductive channel 3 from small changed (.y transverse). the pipe section, therefore, at the output of the single-square multiplier 6, the signal-to-noise ratio for creep defects is increased (chart 11). 24 The output signals of the integrator 5 and the signal extractor are used for further processing in order to isolate local deviations of the wall and lack of fusion pipe joint. The flaw detector allows you to increase the visibility of the defects of the type while maintaining a high sensitivity to defects such as lack of penetration and thinning, which increases the reliability of control of furnace welding pipes.
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU823455639A SU1045112A1 (en) | 1982-06-18 | 1982-06-18 | Electromagnetic flaw detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU823455639A SU1045112A1 (en) | 1982-06-18 | 1982-06-18 | Electromagnetic flaw detector |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1045112A1 true SU1045112A1 (en) | 1983-09-30 |
Family
ID=21017553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU823455639A SU1045112A1 (en) | 1982-06-18 | 1982-06-18 | Electromagnetic flaw detector |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1045112A1 (en) |
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1982
- 1982-06-18 SU SU823455639A patent/SU1045112A1/en active
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