发明名称 |
Eddy current testing system using two samples with different time lags |
摘要 |
A pulsed eddy current testing system for detecting defects in a part. A probe carries an exciting pulse in one coil and receives a measuring signal in a second coil. The measuring signal is sampled at two instants defined by short and long time lags. The two amplitudes obtained are plotted in a representative plane having two reference axes. The point having the signals as coordinates describes a figure eight, when the part has a defect. The size and orientation of the figure gives information on the defect in the part.
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申请公布号 |
US4954778(A) |
申请公布日期 |
1990.09.04 |
申请号 |
US19890311356 |
申请日期 |
1989.02.16 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE |
发明人 |
CHAMPONNOIS, FRANCOIS;DAVID, BERNARD;JOFFRE, FRANCIS |
分类号 |
G01N27/90 |
主分类号 |
G01N27/90 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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