Open AccessCalibration of Thermocouple by Comparison against Standard Radiation Thermometer in a Blackbody Comparator
Author(s) -
Beni Adi Trisna,
Suherlan,
Asep Hapiddin,
Helmi Zaini,
Hidayat Wiriadinata,
Ghufron Zaid
Publication year - 2018
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1065/12/122009
Subject(s) - thermocouple , calibration , thermometer , comparator , black body radiation , metrology , radiation , temperature measurement , infrared thermometer , materials science , silicon carbide , optics , physics , electrical engineering , thermodynamics , engineering , infrared , composite material , quantum mechanics , voltage
A set-up to calibrate thermocouple up to 1500 °C by comparison against radiation thermometer is recently established in Research Center for Metrology – LIPI (RCM – LIPI). A blackbody cavity, made of silicon carbide, is put in a single-zone-controller furnace as a comparator block. A radiation thermometer standard (worked at λ = 650 nm) is employed to determine the reference temperature of the calibration. In this work, a type B thermocouple is calibrated in the range of 1000 – 1500 °C. The expanded uncertainty ( k = 2) is evaluated to be 2.4 °C at 1500 °C. The uncertainty due to inhomogeneity of the thermocouple contributes more than 50% (1.4 °C) of the total uncertainty.