The Measurement of Detachment of Vane Tip in a Positive Displacement Small Vane Pump

압력 평형형 소형 베인펌프에서의 베인 이간 현상 측정

This paper reports on the measurement of the vane motion in a positive displacement small vane pump. The capacitive method using ceramic vane is proposed to measure the vane motion. This method enables us to measure only radial motion of the vane regardless of the motions of other directions. With simple experiments and solutions of simultaneous equations, the indirect compensation of measured signal was performed.