This article briefly introduces the most popular system design technology:VHDL and ISP logic devices, and design a kind of high integrated grating digital readout devices on the basisi of Moire fringe divisiontheory.

• 方案中将当今最流行的系统设计技术VHDL和在系统可编程(ISP)逻辑器件作了简要介绍，并介绍了一种基于光栅莫尔条纹细分理论的高集成度的光栅位移变送器。