在氮沸点检定SPRT时W_(Ar)值的计算与EXCEL实现

Calculation of W_(Ar) for SPRT's Verification in Nitrogen Boiling Point and the Realization by EXCEL

从标准铂电阻温度计检定规程所确定的检定原理出发,探讨了一种利用标准铂电阻温度计(SPRT)的氮沸点电阻比和汞三相点电阻比来计算氩三相点电阻比(W Ar)的方法,并将其在EXCEL中实现,以服务于日常的检定工作。

Based on the principles in the verification regulations on standard platinum resistance thermometer, we designed a method to cal- culate the resistance ratio in Argon＇s three-phase point （ WAr ） . The calculation is on the basis of WN and WHg of the standard platinum resistance thermometers. The calculation method is realized by EXCEL in order to serve the daily verification work.