发明名称 |
Series arc fault diagnostic for aircraft wiring |
摘要 |
A device for measuring the AC voltage drop across a series of connections under load with no direct electrical contact to the conductors. The presence of a substantial resistance at series contacts is indicative of a series arcing fault. The device comprises a capacitive probe for clamping to the outer insulation layer of the wire to sense a first voltage at a first node. The device further comprises a floating high-impedance meter having a ground reference coupled to the source of common-mode voltage at a second node, the floating high-impedance meter being adapted to measure a voltage difference between the two nodes and being further adapted to indicate the presence of the series fault when the measured voltage exceeds a predetermined level.
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申请公布号 |
US6882158(B2) |
申请公布日期 |
2005.04.19 |
申请号 |
US20020055754 |
申请日期 |
2002.01.23 |
申请人 |
GENERAL DYNAMICS OTS (AEROSPACE) INC. |
发明人 |
BLADES FREDERICK K. |
分类号 |
G01R1/07;G01R15/16;(IPC1-7):G01R31/12;G01R31/08;G01R31/02 |
主分类号 |
G01R1/07 |
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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