Abstract

In the fiber-capacitance droplet analysis system, some uncertain factors lead to the difference between measured value of the sensor capacitance and the actual value.In order to effectively solve the problem,this paper describes a drift correction algorithm.By measuring the no-load capacitance of sensor,this paper sets a capacitance correction factor to modify the real-time capacitance signal value.Theoretical analysis and experimental results show that after modified by the correction algorithm,capacitance measurement value reflects the nature of the droplet itself and is comparable.The initial capacitance value variance reduces from 0.047980133 to 0.000144091,improving the stability of the system and providing valid data for future study.

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