发明名称 |
Fault locator apparatus for wire harnesses |
摘要 |
An apparatus for detecting a trouble location in a wire harness can easily detect a location of any trouble such as breakage or short circuit in electric wires in a wire harness and in particular can detect the trouble location by way of a simple structure utilizing a portion with a shield function. In the detecting apparatus, a pulse signal is transmitted in electric wires (2) in a wire harness (1), in which a trouble location is to be detected, and in a sensing line juxtaposed along the electric wires (2) at their ends. A measuring device (20) receives a reflected wave from a transmitted wave and measures a difference in time between the transmitted wave and the reflected wave. A distance from a transmitting end point to a trouble location point is determined in accordance with the difference in time and a signal propagation velocity. Each electric wire (2) in the wire harness (1) is a single wire having no splice portion and a shielded wire having a conductive shield sheath (10). The wire harness (1) is provided with a connection part for connecting each electric wire (2) and the shield sheath (10) to the measuring device (20).
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申请公布号 |
US6011399(A) |
申请公布日期 |
2000.01.04 |
申请号 |
US19960774610 |
申请日期 |
1996.12.30 |
申请人 |
SUMITOMO WIRING SYSTEMS, LTD.;HARNESS SYSTEM TECHNOLOGIES RESEARCH, LTD.;SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
MATSUMARU, AKIO;MIYAZAKI, YOSHIYUKI;KIDO, MOTONORI |
分类号 |
G01R31/02;G01R31/04;G01R31/08;(IPC1-7):G01R31/00 |
主分类号 |
G01R31/02 |
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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