Switched Capacitor Signal Conditioning for Differential Capacitive Sensors

  title={Switched Capacitor Signal Conditioning for Differential Capacitive Sensors},
  author={Boby George and V. Jagadeesh Kumar},
  journal={IEEE Transactions on Instrumentation and Measurement},
A novel switched capacitor signal-conditioning circuit for differential capacitive sensors is proposed. The main advantage of the proffered method lies in the fact that it accepts sensors possessing either linear or inverse characteristics and provides a linear output. Moreover, the output is dependent only on a pair of dc reference voltages and the transformation constant of the sensor. Hence, increased linearity and accuracy is easily achieved by employing precision dc reference voltages… CONTINUE READING
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