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Analysis Of Sensor Coil Implemented In Maxwell-Wien Bridge Circuit For Detecting Ferrous And Non-Ferrous Particles, Kue Z. Yang, Robert J. Veillette, Joan E. Carletta

Electrical and Computer Engineering Student Research

This paper presents an analysis of a wear debris sensor coil implemented in a Maxwell-Wien Bridge circuit used in detecting ferrous and non-ferrous particles. The sensor coil is designed to have a diameter approximately 15 times larger than the largest particle being detected. To detect particles up to 2 mm in diameter, a coil 30 mm in diameter was constructed. Simulations of the experiment indicate that the available particles should be detectable by the sensor coil. However, experimental results indicate that the Maxwell-Wien Bridge does not detect the available particles. Further simulations are presented accounting for parasitic capacitance of the …