A study of electro-static sensor structure for skin moisture measurement

Abstract

This paper presents multi-point moisture measurements by the proposed electrostatic sensor. The proposed sensor consists of a thin silicone sheet and a thin copper film pasted on an acrylic resin. Voltage generated by electrostatic effect was measured by the copper film while the sensor was repeatedly in contact with/released from the target. It is possible to measure the moisture of the target by using the proposed sensor since the voltage depended on the moisture of the target. In the experiment, the voltages at three points of the keratin film were simultaneously measured by the electro static sensor with three channels linear array film before and after the pasted distilled water. As results, it was suggested that multi-point moisture measurements are possible by the proposed sensor.