A device and method for detecting wear depth based on direct voltage drop method

Abstract

The application discloses a device for online detection of wear depth based on a direct current voltage drop method, comprising: a testing machine for fixing a material to be tested, a friction part being arranged on the testing machine and being in contact with the surface of the material, the friction part being driven to wear the material; an analysis module; a plurality of test points; a voltage measurement module and a processing module. The application measures the change trend of the wear depth and the wear position voltage drop in the wear test process by inputting a constant direct current, a reference electrode is arranged on the back of the material to be tested, and the problems of signal interference caused by the resistivity change in the material wear environment and the fluctuation in the wear process are effectively solved; the test electrodes are arranged at opposite angles in the wear area, and the effective area of the material to be tested is effectively covered; the detection is based on Ohm's law to calculate the relationship between the wear depth and the wear position voltage drop, and the application has high applicability. The application further discloses a detection method of the device for online detection of wear depth based on the direct current voltage drop method.

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