| 基于虚拟仪器和USB技术的热电偶测温系统设计 |
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| 引用本文： | 潘雪涛,李浪,孟庆洋,凌洋,张美凤,张亚锋.基于虚拟仪器和USB技术的热电偶测温系统设计[J].计算机测量与控制,2011,19(10). |
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| 作者姓名： | 潘雪涛 李浪 孟庆洋 凌洋 张美凤 张亚锋 |
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| 作者单位： | 常州工学院光电工程学院,江苏常州,213002 |
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| 基金项目： | 江苏省大学生实践创新训练项目资助(J100310); 常州工学院自然科学研究项目资助(YN1033) |
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| 摘 要： | 针对传统热电偶测温中的若干问题,设计了基于虚拟仪器和USB技术的测温系统;热电偶和AD590测量热端和冷端温度,USB采集卡实现信号的转换和传输;上位机软件利用LabVIEW编制,实现数字滤波、非线性和冷端补偿、生成统计直方图等功能;在0～200℃范围进行了实验,系统非线性误差为0.8%,对于同一温度点,顺测和回测的最大误差为0.6℃;这表明系统能够实现高精度实时补偿、重复性较好、结构简单、界面良好,可以满足工业测试的需要。
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| 关 键 词： | 虚拟仪器 热电偶 集成温度传感器 数据采集 |
Design of Thermocouple Temperature Measurement System Based on Virtual Instruments and USB Technology |
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| Pan Xuetao,Li Lang,Meng Qingyang,Ling Yang,Zhang Meifeng,Zhang Yafeng.Design of Thermocouple Temperature Measurement System Based on Virtual Instruments and USB Technology[J].Computer Measurement & Control,2011,19(10). |
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| Authors: | Pan Xuetao Li Lang Meng Qingyang Ling Yang Zhang Meifeng Zhang Yafeng |
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| Affiliation: | Pan Xuetao,Li Lang,Meng Qingyang,Ling Yang,Zhang Meifeng,Zhang Yafeng (Changzhou Institute of Technology,Changzhou 213002,China) |
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| Abstract: | In view of some problems of the traditional temperature measurement for thermocouple,the virtual measurement system was designed based on Virtual Instruments and USB technology.The signal of the hot-junction and the cold-junction temperature was gained by thermocouple and AD590,using USB data acquisition card for signal conversion and transmission.Host Computer software was programmed on LabVIEW,achieving functions such as digital filtering,nonlinear compensation,cold-junction compensation,generating temper... |
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| Keywords: | virtual instruments thermocouple integrated temperature sensor data acquisition |
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