铂电阻虚拟测温仪设计

上帝

吴强
常州工学院延陵学院,江苏常州213002
摘　要:在分析了传统铂电阻测温仪存在的若干不足的基础上，运用图形化编程语言LabVIEW设计了铂电阻虚拟测温仪。测温系统通过软件实现数字滤波和非线性补偿，显示实时温度值。同时还具有生成温度趋势曲线、温度统计直方图、历史数据查询等信息管理功能。实验结果表明，系统结构简单、界面良好、测量准确，可以满足工业测试的需要。[著者文摘]

Design of Virtual Pt - resistance ThermoscopeWU Qiang Yangling School, Changzhou Institute of Technology, Changzhou 213002 Abstract:Some deficiencies existing in traditional way of Pt - resistance temperature measurement instrument are analyzed here, on the basis of which the virtual Pt - resistance temperature measurement instrument is designed by means of graphical programming language LabVIEW. With the help of computer software, the temperature measurement system realizes digital filtering and implements the nonlinearity compensation to show live temperature value. Meanwhile, it also has some information management functions such as generating temperature trend curves, temperature statistical histograms, and historical data inquiry, etc. The experimental results indicate that the system is simple in its structure, with good interface, precise measurement, which is able to fulfill the needs of industrial measurement.[著者文摘]

Key words:virtual instrument; Pt - resistance; digital filtering; nonlinear compensation; LabVIEW