摘要
本文介绍一种铂电阻测温非线性新的校正电路。在该电路中,采用了正反馈的校正方法。实验表明,在0℃～500℃范围内,测温误差小于±1℃。本文详细论述了正反馈的校正原理,并在此基础上,给出了该电路最佳参数的近似计算公式。文中还给出了实验结果。
This paper introduces a new no-linear corrective circuit of Pt-thermistor in tempera- ture measurement.In this circuit,the corrective method with positive feedback is used.The experiment results show that the error of temperature measurement smaller than ±1℃ within 0℃～500℃. This paper elaborates corrective principle with positive feedback,and beses on this, approximate computation formula of optimum parameter of this circuit are given.In this paper,the experiment results are also given.
出处
《天津理工学院学报》
1991年第1期140-143,共4页
Journal of Tianjin Institute of Technology
关键词
铂热电阻
温度
测量
校正
电路
Pt-thermistor
temperature measurement
no-linear correction
