鉑電阻虛擬測溫儀設計

吳強
常州工學院延陵學院,江蘇常州213002
摘　要:在分析了傳統鉑電阻測溫儀存在的若干不足的基礎上，運用圖形化編程語言LabVIEW設計了鉑電阻虛擬測溫儀。測溫系統通過軟件實現數字濾波和非線性補償，顯示實時溫度值。同時還具有生成溫度趨勢曲線、溫度統計直方圖、歷史數據查詢等信息管理功能。實驗結果表明，系統結構簡單、界面良好、測量準確，可以滿足工業測試的需要。[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