发明名称 |
Method of and apparatus for determining if a buried current carrying conductor is buried above predetermined minimum depth |
摘要 |
A detector 1 for detecting a current carrying conductor has a pair of vertically spaced antennae 3, 5 to detect the magnetic radiation produced by a current carrying conductor as a result of one or both of the mains power supply or an electromagnetic signal which is induced in the conductor by a dedicated signal transmitter. The detector 1 continuously calculates the depth of a buried conductor and if the buried conductor is above a predetermined minimum depth then the detector 1 triggers an audio and/or visual alarm. By reducing the sensitivity of the antennae 3, 5 , the lateral offset range for which the alarm sounds is reduced and the location of a buried conductor can be determined.
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申请公布号 |
US2006284610(A1) |
申请公布日期 |
2006.12.21 |
申请号 |
US20060455660 |
申请日期 |
2006.06.20 |
申请人 |
THOMPSON JEFF;PEARSON RICHARD;WHITE ROBERT |
发明人 |
THOMPSON JEFF;PEARSON RICHARD;WHITE ROBERT |
分类号 |
G01R19/00;G01V3/08 |
主分类号 |
G01R19/00 |
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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