Title :
Evaluation of a pressure-controlled water heat pipe for accurate comparison of platinum resistance thermometers
Author :
Tamba, J. ; Kishimoto, I. ; Arai, M.
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol., Nat. Metrol. Inst. of Japan, Tsukuba, Japan
Abstract :
A pressure-controlled water heat pipe was evaluated as a comparison furnace for Standard Platinum Resistance Thermometers (SPRTs). Its calibration uncertainties in the range from 65°C to 157°C were estimated. In direct comparison of SPRTs with a calibrated SPRT, the combined uncertainty of the comparison is estimated to be 0.081 mK. On using the heat pipe as a calibration facility, the combined uncertainty of the calibration is estimated to be 3.1 mK.
Keywords :
calibration; heat pipes; measurement uncertainty; platinum; pressure control; resistance thermometers; Pt; calibration facility; calibration uncertainties; comparison furnace; pressure-controlled water heat pipe; standard Pt resistance thermometers; thermometry; Calibration; Electrical resistance measurement; Furnaces; Platinum; Pressure control; Resistance heating; Temperature; Thermal resistance; Uncertainty; Water heating;
Conference_Titel :
SICE 2002. Proceedings of the 41st SICE Annual Conference
Print_ISBN :
0-7803-7631-5
DOI :
10.1109/SICE.2002.1195792
