Capacitive Readout System for Micro Sensors and Actuators With Automatic Parasitic Cancellation
IEEE Transactions on Instrumentation and Measurement(2022)
摘要
In this article, a capacitive readout system with automatic parasitic capacitance cancellation function is designed and implemented. The readout system is implemented with discrete components on a board level. The parasitic cancellation is realized by matching a digital programmable capacitor to the parasitic capacitance using a PI controller. The function of the readout system is verified by usin...
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关键词
Sensors,Capacitors,Parasitic capacitance,Micromechanical devices,Capacitive sensors,Capacitance measurement,Instruments
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