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Modeling of a Non-contact Type Precision Magnetic Displacement Sensor  

Shin, Woo-Cheol (충남대학교 기계공학과 대학원)
Hong, Jun-Hee (충남대학교 기계공학과)
Lee, Kee-Seok (충남대학교 기계공학과 대학원)
Publication Information
Abstract
Our purpose is to develop a precision magnetic displacement sensor that has sub-micron resolution and small size probe. To achieve this, we first have tried to establish mathematical models of a magnetic sensor in this paper. The inductance model that presents basic measuring principle of a magnetic sensor is based on equivalent magnetic circuit method. Especially we have concentrated on modeling of magnetic flux leakage and magnetic flux fringing. The induced model is verified by experimental results. The model, including the magnetic flux leakage and flux fringing effects, is in good agreement with the experimental data. Subsequently, based on the augmented model, we will design magnetic sensor probe in order to obtain high performances and to scale down the probe.
Keywords
Magnetic Displacement Sensor; Magnetic Flux Leakage; Magnetic Flux Fringing; Equivalent Magnetic Circuit Method; Permeance;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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