Arrangement Effect of Electrically Conductive Yarns on the Pressure Detection Properties of Textile Pressure Sensors

Abstract

There are no sensors, which satisfy all conditions such as flexibility, stretch, thinness and low cost although there are various sheet type pressure sensors. We have developed a new type of pressure sensor using the compression property of textile, and we have already evaluated the response characteristics of the textile sensor.
In this paper, we made several textile sensors with different position and number of the electrically conductive weft yarns and different number of electrically conductive warp yarns, and investigated their pressure detective properties. The detective pressure decreased with an increase of the distance between the boundary of hollow and the electrically conductive weft yarn. Furthermore, the detective pressure also decreased with an increase of the number of electrically conductive weft or warp yarns. In addition, increasing electrically conductive weft or warp yarns reduced the standard deviation of detective pressure.