CPLD在高精度超声波微位移及流量传感器测量系统中的应用

Application of CPLD on High-precision Micro-distance and Flux Sensor Measurement System on the Basis of Ultrasonic Wave Theory

本文介绍了CPLD在一种新型超声波微位移传感器及流量测量系统设计中的应用。系统采用了高速复杂可编程逻辑器件CPLD技术,在CPLD芯片内设计有高速双端口RAM、控制采样时序逻辑及CPU接口、总线等电路,采样速率高达80MHz,采样深度1K字节,很好地解决了超声波微位移传感器软件算法对采样的要求,并可实现在线升级,大大提高了系统的整体性能。

This paper introduces application of CPLD on high-precision micro-distance and flux sensor measurement system on the basis of ultrasonic wave theory . High-speed, complex programmable logic device CPLD technique is used. High-speed double-port RAM, control sampling time sequence logic, CPU interfaces and bus circuit are implemented in CPLD. Sampling speed is up to 80MHz, sampling depth is 1K-byte, and CPLD can fulfill the requirement of the software arithmetic to sampling. What's more, it can on-line upgrade, greatly improves whole performance of system.