REALIZATION OF THE ITS-90 FOR RANGE 232 °C – 962 °C ON KE LP4 AT METROLOGY-LIPI

Hidayat Wiriadinata, Iip Ahmad Rifai, Aditya Achmadi, Arfan Sindhu Tistomo

Abstract

The realization of ITS-90 has been done at Metrology-LIPI using the radiation thermometer monochromatic KE LP4 80-59 over a temperature range 232 - 962 ° C and wavelength &lambda; = 1.57 µm. The method used is Sakuma-Hattori method using fixed-point blackbody tin, aluminum and silver. The value of the uncertainty of the KE LP4 80-59 at the temperature range for the level of confidence of 95% and a coverage factor of <i>k</i> = 2, is expressed by the equation: <i>U</i>(<i>t</i>) = 1.067461375 - 0,008000541 · <i>t</i> + 2,586471 · 10^-5 · <i>t</i>² -3,33928 · 10^-8 · <i>t</i>³ + 1,497270 · 10^-12 · <i>t</i>⁴.

Keywords

ITS-90 realization, Sakuma hattori method, radiation, thermometer, monochromatic

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IMEKO-WC-2015-TC12-261.pdf

DOI

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IMEKO TC

TC12 - Temperature and Thermal Measurements

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