发明名称 |
Circumferentially compensating eddy current probe with alternately polarized receiver coil |
摘要 |
An eddy current probe capable of detecting localized defects with 100% circumferential coverage in tubes, tubes under support plates etc., is disclosed. The probe employs multiple receiver coils with each excitation coil, operating in transmit-receive mode in which alternate receiver coils are electromagnetically polarized in opposite directions. The probe detects localized defects and eliminates concentric variations.
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申请公布号 |
US4808927(A) |
申请公布日期 |
1989.02.28 |
申请号 |
US19870016748 |
申请日期 |
1987.02.19 |
申请人 |
ATOMIC ENERGY OF CANADA LIMITED |
发明人 |
CECCO, VALENTINO S.;MCILQUHAM, RICHARD;SHARP, F. LEONARD |
分类号 |
G01N27/90;(IPC1-7):G01N27/90;G01R33/12 |
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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