Fault locator apparatus for wire harnesses

Details Fault locator apparatus for wire harnesses Fault locator apparatus for wire harnesses

1996-12-30

2000-01-04

Ballato, Josie

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324539, G01R 3100

Patent

active

060113995

ABSTRACT:
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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