Modelling of a Ring-type Multi-pole Inductive Position Sensor Using Magnetic Circuit Theory

자기회로 이론을 이용한 링형 다극 유도형 변위센서의 모델링

  • Published : 2004.10.01

Abstract

The performance of an inductive position sensor has approved by previous research papers. In this paper, magnetic circuit model of a ring-type multi-pole insuctive position sensor is described. The magnetic circuit model is required to design in ductive position sensor as well as draw a fault tolerance algorithm. Using the magnetic circuit theory, we derived the relationship between voltage applied and flux density in the normal air-gap. By idealizing the modulation/demodulation processes of signal processing circuit, sensor gain with respect to change of displacement is theoretically calculation using the magnetic circuit model, which validate the theoretical derivation.

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