发明名称 |
Apparatus for the detection of metal objects located within a poor electrically conductive environment |
摘要 |
A wire loop of almost negligible inductance is coupled with the excitation and receiver coils of metal object detection apparatus which is opened and closed to produce signals in phase with noise signals produced by poorly conductive soils. Enhanced suppression of noise signals is achieved.
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申请公布号 |
US4926127(A) |
申请公布日期 |
1990.05.15 |
申请号 |
US19890349699 |
申请日期 |
1989.05.10 |
申请人 |
INSTITUT DR. FORSTER GMBH & CO. KG |
发明人 |
AUSLAENDER, KLAUS;FABRIS, HANS-JUERGEN;PATZWALD, WOLFGANG;SEICHTER, HELMUT |
分类号 |
G01V3/10;G01V3/11;G01V13/00 |
主分类号 |
G01V3/10 |
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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