Capacitive sensor device
作者： Klaus Kaltner
DOI:
关键词: Dielectric 、 Voltage 、 Electrical engineering 、 Materials science 、 Electric field 、 LC circuit 、 Field (physics) 、 Electrode 、 Capacitor 、 Optoelectronics 、 Capacitive sensing
摘要: The invention relates to an arrangement for producing electric field which is markedly influenced in relation the spatial expansion thereof, and a sensor device comprises same. aim of provide solutions make it possible generate quasi-static alternating expands precise manner regard focusing relevant preferential area embodied as monitoring signal transmission area. Said achieved by means circuit comprising electrode connected such LC network exposed that capacity capacitor system alters accordance with dielectric properties material present field, insulating layer extends on rear side oriented away from screening extinction surface towards are arranged impinged upon voltage superimposed each other sections.
lens.org 参考文章(2)
Ronald A. Marker, Raymond J. Vivacqua, Delvin M. Gualtieri, Phase shift detection and measurement circuit for capacitive sensor ,(1997)
Ernst Gabriel, Josef Femboeck, Capacitive path sensor with oscillator - has screening electrode between capacitor active and earthing electrodes, at same potential as active electrode ,(1990)