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K. Yamazawa,K. Anso,J. V. Widiatmo,M. Arai 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
This paper describes the preliminary measurements of the precise comparison between a radiation thermometer and a platinum resistance thermometer (PRT). The aim of this work is to measure the resistance -temperature relation of standard platinum resistance thermometers at temperatures above the present upper limit (961.78??C) of PRTs. The comparison furnace is placed in horizontal orientation, and a graphite block is placed in the center as acomparison block. In this paper, preliminary measurement results for the evaluation of the uncertainty in the comparisonmeasurement are reported. First, the results of the comparison using the design configuration determined in our previouspaper are reported. Upon the measurements of three independent experimental rounds, we suspected that the design of the comparison block needed some improvements. We re-designed the comparison block, and also report the comparison results obtained using this improved version.