A Study on Development of Stroke Sensing Chlinder for Hydrauric Cylinder Using Hall Sensor

홀센서를 이용한 유압실린더의 스트로크 센싱 실린더 개발에 관한 연구

We developed a part of stroke sensing cylinder and its measurement system for system for automatic excavator. In this paper, for development of stroke sensing sylinder, we consist of 2-axis control instrument system with magnetic sensor. A Performence of cylinder rod with magnetic scales is evaluated by its system. Furthmore, the position control for good performance of instrument system is achieved by a sliding mode control which is a new method diminishing the chattering in that control by setting 2-dead band along the swtching line. The unknown parameters for sliding mode control are estimated by the signal compression method.