Pressure-Potential Conversion in a Textile-Rigid Dielectric System
Research and development
Authors:
- Kacprzyk Ryszard
Institute of Electrical Engineering Fundamentals, Wrocław University of Technology, Wrocław, Poland - Lewandowski Marcin (j/w)
 Full text | Abstract: Results of the investigation of a double layer dielectric system consisting of textile and rigid dielectric layers is discussed in this paper. It is shown that the double-layer system submitted to an external stress produces an electrical potential distribution due to the trybo-charge generated during contact between the rough surface of an elastic-textile and the rigid dielectric layers. It is shown that the local effective surface charge density on the rigid dielectric layer depends on the intensity of the local stress - local pressure value. The charge generated produces proportional voltage on the solid dielectric layer after removing the elastic (textile) one. This way the pressure may be converted into a voltage signal, which is „memorised” by the solid dielectric layer. The ”pressure map” converted into an „electric potential map” can be visualised by potential distribution determination. Potential distributions obtained for systems made of different materials (textiles) are presented in the paper.ďýďý |
Tags: fabric, non-woven, electrostatic processes, electrets, transducers.
Citation: Kacprzyk R., Lewandowski M.; Pressure-Potential Conversion in a Textile-Rigid Dielectric System. FIBRES & TEXTILES in Eastern Europe, January/March 2009, Vol. 17, No. 1 (72) pp. 71-74.