2Brasseur G. A robust capacitive angular position sensor[A].IEEE Instrumentation Measurement Technology Conference[C].Burssels, Belgium: 1996. 1081 - 1086.
3Gerard C, Meijer M. A contactless capacitive angular-position sensor[J]. IEEE Sensors Journal,2003,3(5 ) :607 -614.
4Tibor F. A Measurement Algorithm for Capacitive Speed Encoder with a Modified Front-End Topology [ J ]. IEEE Transaction on Instrumentation and Measurement, 1998,47 (5) : 1341 - 1343.
