中微子实验通用工业信号采集板  

General Industrial Data Acquisition Board of Neutrino Experiment

作　　者：许卓[1] 杨雷[2] 何志伟[1] 

机构地区：[1]华南理工大学,广东广州510641 [2]东莞理工学院,广东东莞523106

出　　处：《计算机测量与控制》2011年第8期2042-2044,共3页Computer Measurement &Control

基　　金：国家自然科学基金(10890095)

摘　　要：为了测量中微子实验中的工业信号,设计了一套通用工业信号采集板,可以采集4~20mA的电流信号和0~10V的电压信号,并有开关量输入输出功能;经过测量,电压值最大偏移量小于1mV,满量程为10V,线性度优于0.1%;电压值最大偏移量小于1.5mV,满量程为5V（电流信号经过采样电阻得到的电压）,线性度优于0.1%;实验证明该系统具有搭配灵活、工作可靠、使用方便和低成本的特点,并且系统测量精度高,抗干扰能力强,完全符合设计的要求。In order to measure the industrial signal of the neutrino experiment, a set of general industrial data acquisition board is designed. It can collect 4-20mA current signal and voltage signal 0-10V, and a digital input and output. Through the measurement, the maximum offset voltage is less than lmV, full scale is 10V, linearity is better than 0. 1%; maximum offset voltage is less than 1.5mV, full range is 5V （current signal received through the sense resistor voltage ）, linearity is better than 0. 1%. Experiments show that the system is flexible, reliable, easy to use and low cost, and the system with high precision, strong anti--interference, fully meets the design requirements.

关 键 词：工业信号、模块化、数据采集 信号隔离 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]