热敏电阻测温线性化补偿电阻的最优选择  

OPTIMALDETERMINATION OF LINEARlZING COMPENsATION RESISTANCE IN TEMPERATUREMEASUREMENT WITH THERMISTOR

作　　者：易啸涛[1] 

机构地区：[1]长沙矿山研究院

出　　处：《矿业研究与开发》1994年第3期106-109,共4页Mining Research and Development

摘　　要：热敏电阻是温度测控系统中的重要元件。其测温特性呈非线性，因而其电路输出特性亦是非线性，这将影响仪器的测量精度。为改善其非线性特性，在电路中加入补偿电阻。该电阻阻值的选择直接影响补偿效果，因而采用共轭梯度法进行最优化处理，以达到最佳补偿效果。In the temperature control system,the thermistor is an important element.The temperature characteristic of themistor shows to be nonlinear,thereby the output ofthermistor circuit is characterized by nonlinearity,which has influence on the measuringaccurancy. In order to improve the nonlinear charactoric,the compensation resistance isadded in the circuit.The determination of resistance value has direct influence on the com-pensating results.Therefore,the conjugate gradient method is adopted to conduct the opti-mization processlng.

关 键 词：热敏电阻 温度测控系统 最佳化 

分 类 号：TH811[机械工程—仪器科学与技术]