牛顿法在Pt100铂热电阻温度计算中的应用特性分析  

Application Characteristic Analysis of Newton Method in Temperature Computation of Pt100 Platinum Resistor

作　　者：张莉[1] 姜建国[1] 

机构地区：[1]西安电子科技大学

出　　处：《现代电子技术》2008年第6期146-148,共3页Modern Electronics Technique

摘　　要：针对Pt100热电阻温度-电阻计算问题,以二分法为参照,详细分析牛顿法的应用特性,在VC 6.0编程环境下对比2种方法的程序结构、计算复杂性、绝对计算精度以及相对运行速度。结果表明,在相同的精度约束下,牛顿法计算复杂性小、计算精度高、误差较小;相对运行速度牛顿法要快4倍以上。说明在Pt100铂热电阻温度计算中,牛顿法不失为一个较好的选择。An analysis of temperature- resistance computation algorithm of Ptl00 platinum resistor is discussed. Based on the comparison of the Dichotomy method, programming structure, computing complexity, absolute accuracy and relative operating speed of the Newton method are analyzed in detail. Results show that,at the same accuracy constraint,the Newton method has smaller computation complexity, higher accuracy, lower calculation error and faster operation speed than the Dichotomy method. Therefore, the Newton method is a appropriate algorithm for the temperature computation of Pt100 platinum resistor.

关 键 词：Pt100热电阻 牛顿法 二分法 特性分析 

分 类 号：TN304[电子电信—物理电子学]