Study on credibility of industrial platinum resistance measurement results of different verification methods
Chen Gui-shen · China Measurement & Test · 2014
Based on the technical conditions prescribed verification regulation JJG 229——2010,in standard platinum resistance thermometer R*tpuse self-test values and direct reference to the higher certificate, the use of three different levels of electrical measuring instrument measurements were evaluated. Assessment results can be seen from the data: under the same measurement conditions,uncertainty in self-test test R*tpvalues much higher than the test results with a certificate R*tpvalue uncertainty,self-test R*tpvalue does not decrease test uncertainty.