The Development of Rotary Magnetic Position Sensor with Sinusoidal Magnetization Density Distribution

정현적 자화분포를 갖는 위치 검출용 마그네틱 센서 개발

This paper presents the development of the magnetic position sensor for servo motor. The magnetization system is designed for the sinusoidal magnetic flux density distribution from permanent magnet using 2D finite element method and Preisach model. The magnetic position sensor is composed of the permanent magnet and two Hall elements. And the algorithm calculating the rotating position is suggested by the phase difference of outputs of Hall elements.