新型USB2.0多功能数据采集系统  

New Type of USB2.0 Multi-function Data Acquisition System

作　　者：袁月峰[1] 柳静[1] 吴超海[1] 

机构地区：[1]中国计量学院,浙江杭州310018

出　　处：《仪表技术与传感器》2012年第5期49-51,共3页Instrument Technique and Sensor

基　　金：浙江省2010年大学生创新计划项目

摘　　要：根据比例电磁铁静动态特性测试的要求,设计了一种新型USB2.0接口多功能数据采集系统。采用第5代USB2.0接口芯片FT2232H,利用其特有双CPU-FIFO接口特性和两片dsPIC33FJ64MC804单片机构成双CPU采集控制系统,可同时实现连续批量A/D数据采集和高精度动态波形D/A信号同步输出,此外还具有高分辨PWM输出和16位编码器计数器功能。分别设计了单片机固件程序和上位机采集函数动态链接库DLL.该数据采集系统不但能够满足比例电磁铁静动态性能测试要求,还可用于多种其他测试采集需求。A USB2.0 multifunction data acquisition system was proposed based on the static and dynamic characteristics measurement requirement for proportional solenoid.Based on 5th generation USB2.0 connection chip FT2232H,two dsPIC33FJ64MC804 MCU formed double CPU acquisition and control system using FT2232H＇s unique double CPU-FIFO connection mode.Simultaneous bulk A/D sampling and high precision wave D/A outputs can be realized.Other functions include high resolution PWM outputs and quadrature encoder interface.MCU firmware and PC driver DLLs were developed.This system is suit for proportional solenoid performance test,and can be applied in many other measurement situations.

关 键 词：数据采集 USB2.0 FT2232H 比例电磁铁 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]