发明名称 |
DEVICE FOR DETECTING DEFECTS IN A SURFACE OF AN OBJECT |
摘要 |
A device for detecting irregularities in the surface of an object comprises at least one transducer which is movable relative to the surface of the object and an associated signal-processing unit which receives and processes output signals generated by the transducer. The signal-processing unit includes two electrical circuits, the first circuit providing a signal A which is derived from the output signal from the transducer and the second circuit including an analog shift register to provide a signal B which is derived from the output signal from the transducer and which is time delayed relative to signal A. The signal-processing unit also includes means for combining signals A and B to provide a measuring signal C. |
申请公布号 |
DE3379114(D1) |
申请公布日期 |
1989.03.09 |
申请号 |
DE19833379114 |
申请日期 |
1983.11.22 |
申请人 |
TORNBLOMS KVALITETSKONTROLL AB |
发明人 |
TORNBLOM, BENGT |
分类号 |
G01N27/90;(IPC1-7):G01N21/89;G01N27/82 |
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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