对JJG 229检定规程检定方法差错的实验验证  

Experimental validation for error verification method in JJG 229 verification regulation

作　　者：付志勇[1] 廖艳[1] 陈桂生[1] 刘旭栋[2] 朱育红[1] 赵晶[1] 

机构地区：[1]中国测试技术研究院,四川成都610021 [2]中国人民解放军第5719工厂,四川彭州611936

出　　处：《中国测试》2016年第6期19-22,28,共5页China Measurement & Test

摘　　要：依据JJG 229——2010《工业铂、铜热电阻》检定规程规定的条件和方法,采用两支标称电阻值(Rtp)为25Ω的标准铂电阻温度计作标准,多支Pt100型工业铂热电阻作被检样品,两个不同准确度的测量仪器,完成两种检定方法比较试验。试验时标准器分别用自测Rtp值和上级证书值,用比较法完成对工业铂热电阻的检定。从结果可以看出:用自测标准Rtp值检定,增加的结果偏差是用上级证书值的5倍以上,表明标准器由从本级标准装置赋值开展检定是不科学的,其效果可能南辕北辙。According to the conditions and methods of the verification regulation JJG 229——2010for industrial platinum thermal resistance, a comparative test was performed for two verification methods with 2 standard platinum resistance thermometers with 25 Ω（Rtp） nominal resistance value as regulator, several industrial Pt100 platinum resistances as test samples, and 2 measuring instruments of different accuracy ratings. In the test, the regulator with self-test Rtpvalue and higher certificate value was applied to complete the verification of industrial platinum resistance based on comparison method. The results obtained from the instrument used in the test indicate that the error increased from the verification with the self-test standard Rtpvalue is more than five times that of the higher certificate value,which proves that regulator assigned by the equipment at the same level to carry out verification is unscientific and its effect may be poles apart.

关 键 词：温度计量 检定规程 热电阻 标准铂电阻 水三相点 误差 

分 类 号：TH811[机械工程—仪器科学与技术]