Analysis and Design of the Capacitance Measurement System Based on FPGA

The differential capacity sensor is widely used for signal measure of productions as lots of advantages.The scheme based on FPGA for the differential capacity was analyzed and designed.Through the particular analysis of the whole project and each part,simultaneously by the experiment and the debugging with the help of the lab equipments,the measure system which mainly consists of digital circuit for the differential capacity was carried out.At last,by the experiment of the prototype and the emulation by MATLAB,the feasibility and validity have been demonstrated.