68国际实用温标在中温段的简化  

Sim plification of the Practical Temperature Scale 1968 over Moderate Temperature Range

作　　者：陈华秋 

机构地区：[1]国家海洋计量站

出　　处：《海洋技术》1989年第2期64-71,共8页Ocean Technology

摘　　要：本文用两个有明确物理意义的近似量(t_h、x)的多项式进行标准铂电阻温度计的温度计算,这样在常温范圈内,可替代68国际实用温标规定的隐函数公式,误差可小于0.0002℃。A polynomial with 2 approximities (th x) of definite physical meaning is used to calculate the temperature measurements of the standard platinum resistance thermometer. Over the moderate temperature range, the implicit function formula specified by the International Practical Temperature Scale 1968 can be substituted by the polynomial, which can result in calculation error of only less than 0.0002℃.

关 键 词：温度计 温标 中温段 

分 类 号：P716.12[天文地球—海洋科学]