浅谈压力式温度计示值误差测量结果的不确定度评定  

Evaluation of the Uncertainties in Indication Error Measurement of Pressure Thermometer

作　　者：谢鹏赓 XIE Penggeng(Hubei Qingjiang Hydroelectric Development Co., Ltd., Yichang 443000, China)

机构地区：[1]湖北清江水电开发有限责任公司,湖北宜昌443000

出　　处：《水电与新能源》2020年第4期20-22,29,共4页Hydropower and New Energy

摘　　要：为了帮助试验人员深入了解压力式温度计的原理及作用,详细介绍了温度计示值误差测量结果的不确定度评定方法。影响压力式温度计示值误差结果的主要因素是,被检温度计的示值重复性、恒温槽温度不均匀性和恒温槽温场的波动。为了保证压力式温度计测量结果不确定度评定具有较高的可靠性,试验人员需要对影响评定可靠性的各种因素进行全面的分析,找出温度计示值的误差,从而确保温度计能够更好的被投入使用。The evaluation method of the uncertainties in indication error measurement of pressure thermometer is introduced in detail.It shows that the major factors affecting the indication error measurement of pressure thermometer are the indication repeatability of the thermometer,and the non-uniformity of the temperature distribution and the temperature fluctuation of the thermostat bath.To improve the reliability of the uncertainty evaluation of temperature measurement,we should carry out comprehensive analyses of various influencing factors and determine the indication error of the thermometer.So that the pressure thermometer can be used practically.

关 键 词：压力式温度计 不确定度 误差测量 输入量 

分 类 号：TH76523[机械工程—仪器科学与技术]