| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for detecting a stepped abrasion of a contact strip by measuring an acceleration of a trolley wire of which behavior changes according to the stepped abrasion. SOLUTION: The device for detecting the stepped abrasion of the contact strip in a pantograph includes a sensor 10 measuring the acceleration in a vertical and/or right/left direction of the trolley wire 1, a signal line 13 for transmitting an acceleration signal measured by the sensor 10, and means 14, 16 of processing and determining the transmitted acceleration signal. When the acceleration signal, where the acceleration in the vertical and/or right/left direction of the trolley wire 1 is measured, is processed to obtain an acceleration evaluation value, and the evaluation value exceeds a prescribed threshold, it is determined that the stepped abrasion has been caused on the contact strip 21 of the pantograph of an electric train 20 passing through a track below the trolley wire 1. COPYRIGHT: (C)2011,JPO&INPIT
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