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http://dx.doi.org/10.4283/JKMS.2015.25.1.027

Displacement Sensor Fabricated with LC Resonators  

Shin, Kwang-Ho (Department of Information & Communication Engineering, Kyungsung University)
Abstract
In this study, the LC resonators were fabricated with ferrite cores and external capacitors, and then their characteristics were investigated for the purpose of developing new displacement sensor. The frequency dependence of impedance of single resonator was estimated. There were two resonance peaks on the impedance spectrum; one by self inductance and the other by mutual inductance. The resonance frequency was shifted linearly in direct proportion to displacement of the resonator showing the proposed device, a pair of LC resonators, could be used a precision displacement sensor.
Keywords
displacement sensor; ferrite core; resonance frequency;
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