基于CVI的气体传感器自动标定系统设计  

Design of Automatic Calibration System for Gas Sensors Based on CVI

作　　者：何美燕[1,2] 杨帮华[1,2] 陆文宇[1,2] 张永怀[3] 潘中桥[3] 

机构地区：[1]上海大学机电工程与自动化学院自动化系,上海200072 [2]上海市电站自动化技术重点实验室,上海200072 [3]中国科学院上海微系统与信息技术研究所,上海200233

出　　处：《仪表技术与传感器》2012年第12期173-175,共3页Instrument Technique and Sensor

基　　金：国家自然基金青年基金项目(31100709);国家自然基金面上项目(60975079)

摘　　要：系统由传感器、流量计、温箱、测试板及计算机软硬件组成。采用LabWindows/CVI编写软件程序,功能包括:控制温箱实现对传感器的定时保温;控制流量计实现对传感器定时定量通入比例气体;通过测试板采集传感器数据;对采集数据自动整理。该软件采用多线程编程,充分发挥CVI函数库的强大功能,保证各项工作同时进行,具有界面友好、运行速度快、成本低、可靠性高的优点。经过PC机与下位机的通讯测试,系统可有效地实现对传感器的自动标定。The system consists of sensors, flow meters, temperature cabinet, test boards and computer hardware and software. The software programs were made by LabWindows/CVI. The function of the software includes several aspects. One is that it can control a temperature cabinet to keep the temperature of sensors fixed, the other is that it can control flow meters to compound gas for sensors according to a given proportion. The software also can collect data of the sensors through the test boards, and sort the da- ta of the sensors automatically. The software was made by multithreaded programming, which utilizes a strong function of CVI func- tion library and so ensures that each part can work simultaneously. The software has the advantages of fast operation ,friendly inter- face, low cost and high reliability. After the communication test between PC and lower machine, the system can effectively achieve the automatic calibration of the sensors.

关 键 词：气体传感器 自动标定 多线程 LABWINDOWS CVI 串口通信 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]