Design of sensor array data acquisition system based on equipotential method

In order to reduce the measurement error caused by cross-talk of piezoresistive array flexible sensor and improve the accuracy of data acquisition, a cross-talk rejection circuit based on equal potential method is proposed, the data acquisition system is built, and the hardware and software of each module are designed. The experimental results show that the designed data acquisition system can basically eliminate crosstalk effect, carry out real-time data acquisition with good accuracy, and can transmit the measured data to the upper computer at the same time, to meet the requirements of piezoresistive array flexible sensor acquisition.