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Title: An InGaAs detector based radiation thermometer and fixed-point blackbodies for temperature scale realization at NIM

In this paper, we describe an InGaAs detector based radiation thermometer (IRT) and new design of fixed-point blackbodies, including Sn, Zn, Al and Cu, for the establishment of a temperature scale from 200 °C to 1085 °C at the National Institute of Metrology of China. The construction and calibration of the IRT with the four fixed-point blackbodies are described. Characteristics of the IRT, such as the size-of-source effect, the amplifier performance and its stability are determined. The design of the four fixed-points, with 10 mm diameter of aperture and 0.9999 emissivity, is described. The uncertainty of the scale realization is elaborated.
Authors:
; ; ;  [1]
  1. Division of Thermometry and Materials Evaluation, National Institute of Metrology, Beijing, China, 100013 (China)
Publication Date:
OSTI Identifier:
22218033
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1552; Journal Issue: 1; Conference: 9. international temperature symposium, Los Angeles, CA (United States), 19-23 Mar 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; AMPLIFIERS; APERTURES; BLACKBODY RADIATION; CALIBRATION; DESIGN; EMISSIVITY; GALLIUM ARSENIDES; INDIUM ARSENIDES; PERFORMANCE; SEMICONDUCTOR DEVICES; STABILITY; THERMOMETERS