Software and Hardware Design of Displacement Measurement Based on Raster Displacement Grating Sensor

In this article,a new kind of line displacement measurement system is presented which is based on grating sensor and AT89C51 processor There are four parts(data collection,seuse finding,data process,data display) consisting in hardware in this system Line displacement can be detected by grating sensor,digitaled by LM339,calculated in 8253,processed in AT89C51 and displayed in using sevensegment LED Compared with other systems, This system have higher rigorous and more simple hardware