本文档设计了1光栅位移传感器信号的接收、光栅位移传感器信号的整形及电平转换电路设计，用Verilog HDL描述了锁相倍频细分和零位信号处理电路。利用FPGA实现光栅位移系统与上位机接口的电路原理框图-This document designed a grating displacement sensor signal reception, grating displacement sensor signal shaping and level conversion circuit design