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Vol. 175, Issue 7, July 2014, pp. 214-219




Study of the Sensor for On-line Lubricating Oil Debris Monitoring

Huiqin Zhan, Yang Song, Hui Zhao, Jun Gu, Hongyu Yang, Shuo Li

School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Tel.: 028-61830308

E-mail: lsleocxx@126.com


Received: 19 January 2014 /Accepted: 30 May 2014 /Published: 31 July 2014

Digital Sensors and Sensor Sysstems


Abstract: Mechanical parts such as gears and bearings used in mechanical equipment have a finite lifetime because of corrosion and wear. If the parts are in abnormal operation and is not detected, it may cause catastrophic component failure during operation. One effective approach to detect signs of potential failure of the mechanical equipment is to examine the debris particles in its lubricating oil. This article presented an inductive debris sensor which is designed on the basis of the principle of inductance balance. The structure design and the principle of it are studied. The intensity distribution of its magnetic induction is simulated by the use of simulation software Ansoft Maxwell. The mathematical model when there is a debris particle passing through the sensor is analyzed and the characteristics of the sensor’s induction signal is gotten. Experiments have shown that debris particles can be detected by this sensor.


Keywords: Inductive sensor, Debris detection, Magnetic induction intensity distribution, Mathematical model.


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