高精度测温仪替代标准水银温度计的可行性研究  

Feasibility Study on Replacing Standard Mercury Thermometers with High-precision Thermometers

作　　者：王艳霞 WANG Yanxia

机构地区：[1]河北省计量监督检测研究院

出　　处：《计量与测试技术》2025年第3期146-148,共3页Metrology & Measurement Technique

摘　　要：标准水银温度计是日常生活中最常用的温度范围为(-60~300)℃的标准器。目前,高精度测温仪表作为前者的替代,已被引起广泛重视。因此,本文对精密铂电阻测温仪的测量重复性、测温仪表的稳定性和准确性进行研究,并进行不确定度评定。结果表明:该测温仪在该温度范围内,示值误差和年稳定性均优于该温度计。The standard mercury thermometer is the most commonly used standard in daily life with a temperature range of(-60~300)℃.At present,high precision thermometer as an alternative to the former,has been widely paid attention to.Therefore,the measurement repeatability,stability and accuracy of precision platinum resistance thermometer are studied in this paper,and the uncertainty evaluation is carried out.The results show that the indicating error and annual stability of the thermometer are better than that of the thermometer in this temperature range.

关 键 词：水银温度计 替代 测温仪表 稳定性 

分 类 号：TH8[机械工程—仪器科学与技术]