Research on Processing the Output Signal from the Capacitive Gate Sensor Based DSP

Abstract

In the test engineering relating to the displacement, the capacitive gate sensor has been widely used because of its high cost performance, small volume and good adaptive capacity to the environment. A scheme about receiving and processing the output signals from capacitive gate sensor is introduced to achieve long-distance monitoring. By using the DSP (TMS320LF2407) as the core processor,the circuit is designed to complete processing the serial signal from the sensor by interrupt algorithm in software, and experiment result shows the design is feasible. Due to the circuit design with advantages including the few omponents, high speed processing, good reliability and easily programming, it posses a certain practical value in harsh working environment.