SU894550A1 - Method of electromagnetic checking with gap effect suppression - Google Patents
Method of electromagnetic checking with gap effect suppression Download PDFInfo
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- SU894550A1 SU894550A1 SU802899352A SU2899352A SU894550A1 SU 894550 A1 SU894550 A1 SU 894550A1 SU 802899352 A SU802899352 A SU 802899352A SU 2899352 A SU2899352 A SU 2899352A SU 894550 A1 SU894550 A1 SU 894550A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- gap
- ratio
- function
- gaps
- transducer
- Prior art date
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
(5) СПОСОБ ЭЛЕКТРОМАГНИТНОГО КОНТРОЛЯ С ПОДАВЛЕНИЕМ ВЛИЯНИЯ ЗАЗОРА(5) METHOD OF ELECTROMAGNETIC CONTROL WITH SUPPRESSION OF THE IMPACT OF CLEARANCE
1one
Изобретение относитс к неразрушакицему контролю и может быть использовано дл электромагнитного контрол электропровод щих немагнитных объектов .The invention relates to non-destructive testing and can be used for electromagnetic control of electrically conductive non-magnetic objects.
Известен способ электромагнитного контрол с подавлением вли ни зазора , заключающийс в том, что измер ют фазу вносимых параметров вихретокового преобразовател , взаимодействующего с контролируемым объектом и по ней суд т о параметрах объекта 11.The known method of electromagnetic control with the suppression of the influence of the gap consists in measuring the phase of the input parameters of the eddy current transducer interacting with the object being monitored and judging it about the parameters of the object 11.
Недостаток известного способа состоит в его низкой чувствительности при контроле слабопровод щих объектов , например руд цветных металлов.The disadvantage of this method is its low sensitivity when monitoring weakly conducting objects, such as non-ferrous metal ores.
Наиболее близким к изобретению по технической сущности вл етс способ электромагнитного контрол с подавлением вли ни зазора, заключающийс в том, что вихретоковый преобразователь привод т в электромагнитное взаимодействие с контролируемымThe closest to the invention in its technical essence is a method of electromagnetic control with suppression of the influence of the gap, which consists in the fact that the eddy current transducer leads to electromagnetic interaction with a controlled
объектом, измер ют активную и реактивную составл ющие вносимых параметров вихретокового преобразовател при двух значени х зазора между преобразователем и поверхностью контролируемого объекта, определ ют функцию вносимых параметров преобразовател , нормируют полученную функцию по величине разности между зазорами , использованными при измере10 ни х, и по нормированной функции определ ют параметры контролируемого объекта 2.object, measure the active and reactive components of the input parameters of the eddy current transducer with two values of the gap between the transducer and the surface of the object under test, determine the function of the input parameters of the transducer, normalize the resulting function according to the difference between the gaps used in measurements, and normalized the functions determine the parameters of the monitored object 2.
Недостаток известного способа состоит в недостаточной надежности The disadvantage of this method is the lack of reliability
«5 контрол слабопровод щих объектов.“5 controls for weakly conducting objects.
Цель изобретени - повышение надежности контрол слабопровод щих объектов.The purpose of the invention is to increase the reliability of monitoring weakly conducting objects.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802899352A SU894550A1 (en) | 1980-03-21 | 1980-03-21 | Method of electromagnetic checking with gap effect suppression |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802899352A SU894550A1 (en) | 1980-03-21 | 1980-03-21 | Method of electromagnetic checking with gap effect suppression |
Publications (1)
Publication Number | Publication Date |
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SU894550A1 true SU894550A1 (en) | 1981-12-30 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU802899352A SU894550A1 (en) | 1980-03-21 | 1980-03-21 | Method of electromagnetic checking with gap effect suppression |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU894550A1 (en) |
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1980
- 1980-03-21 SU SU802899352A patent/SU894550A1/en active
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