A Micro-Channel Oil Debris Monitoring Sensor Based on a Planar Coil and Two Solenoids

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Abstract:

A micro-channel oil debris monitoring sensor based on planar coil is presented. The sensor, composed of one planar coil and two solenoids, detects metallic debris passing through its center by monitoring induced electromotive force of the planar coil. Based on the detection principle of the sensor, the detection circuit mainly consists of instrumentation amplifier, filter and amplifier. The testing results showed that the ferromagnetic metal particles under 100μm can be detected.

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814-817

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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