| 摘要 |
A stray flux measurement device for detection of defects near the surface and remote from the surface on ferromagnetic specimens ( 10 ) is characterized by at least one coil ( 20 ) or an equivalently acting core/coil combination that faces the specimen ( 24, 22 ) and at least one coil ( 30, 40 ) or an equivalently acting core/coil combination ( 34, 32; 44, 42 ) that faces at an angle relative to the surface of the specimen.
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