一种利用Pt100的高精度测温方法
Method of High-precision Temperature Measurement with Pt100
本文介绍了铂热电阻Pt100的特性和采用Pt100测量温度的一般原理，重点论述了提高Pt100测量精度的3种方法：1.导线电阻补偿；2.数字滤波减少随机误差；3.插值算法校正传感器的非线性。本方案分利用了单片机的数据处理能力，实现-200-650℃范围内温度的高精度测量。
his paper introduced the characteristic of thermistor Pt100 and the principle of measuring temperature with Pt100. It emphasized three kinds of enhancing the precision of temperature measurement with Pt100: 1. compensation for wire resistance; 2.digital filter for reducing the random error; 3. interpolation arithmetic for compensating nonlinearity of temperature transducer. It makes full use of the capability on processing real-time data of MCU, and realized accurate measurement of temperature within range of -200-650℃.
魏同宇、任子晖、孙卫兵、胡明
电子元件、电子组件电子技术应用无线电、电信测量技术及仪器
Pt100高精度温度测量单片机
Pt100high precisiontemperature measureMCU
魏同宇,任子晖,孙卫兵,胡明.一种利用Pt100的高精度测温方法[EB/OL].(2007-06-18)[2025-08-04].http://www.paper.edu.cn/releasepaper/content/200706-367.点此复制
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