摘要
本文用最小二乘法对铂铑10-铂、镍铬-镍硅、铜-康铜、镍铬-康铜、铁-康铜和铂铑13-铂六种常用热电偶分度表进行曲线拟合,获得了以热电偶的热电动势为自变量计算温度的多项式公式。结果表明,在各拟合数据点的最大误差小于0.3℃。
Fitting curves of six kinds of common thermocouple graduation tables are made in this paper. The multinomial formulas for calculating temperatures at the independent variable of thermo-emf were obtained. The biggest error between actual value and calculation value at the same point is less than 0. 3℃, which meets the need of calculation.
出处
《石油大学学报（自然科学版）》
CSCD
1989年第5期73-84,共12页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
热电偶
温度
最小二乘法
计算公式
Thermocouple
Temperature
Calculation formula
Least square method
