Design of Capacitive Sensor for Measuring the Position of the Piston in Hydraulic Cylinder

유압 실린더 내 피스톤 위치측정을 위한 정전용량 센서 설계

  • Published : 2015.05.26


In this paper, several capacitive sensors for measuring the position of the piston in hydraulic cylinder was studied and designed. The inductive LVDT sensor has been widely used to measure the position of the piston because of its high accuracy, but this type of sensor is very expensive and has difficulty in use because of its complexity. To overcome these disadvantages, we studied the optimized non-contact capacitive sensors and designed several capacitive sensors for accurate measuring the location of piston in hydraulic cylinder. The proposed capacitive sensor has the possibility of practical use for hydraulic cylinder through experiments.