A Differential Capacitance Transducer with Load
Yang San-xu · Electrical Measurement & Instrumentation · 2009
A novel differential capacitive transducer with load was introduced. It can settle the single situation of the principle and kinds for the transducer with load,and requirements of various testing occasions. The change of the transducer load is as the input,then it is transformed to change of capacitance by sensor (elastomer) and conversion components (differential cylinder electrode),and the linear relationship between the input and the output was discussed. This transducer has used the structure of differential,equipotential rings and thin cylinder electrode. It also has adopted modern materials and modern technology,and then the nonlinear error and edge effect has been eliminated. It improved the measurement accuracy,sensitivity,reliability,service life greatly. This transducer is of practical significance,and is worth promotion.