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23 March 2001 Noncontact thermometry in the Optical Technology Division at NIST
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The Optical Technology Division (OTD) at the National Institute of Standards and Technology (NIST) maintains the thermodynamic temperature scale above the silver freezing point using spectral radiance ratios according to the International Temperature Scale of 1990 (ITS-90). Radiance temperature calibration services are performed in the OTD, and NIST's calibration services support industry, government agencies, national standards laboratories, pyrometer and blackbody manufacturers, universities, and U.S. military service calibration laboratories. In addition, the OTD also offers a four day Short Course on Temperature Measurement by Radiation Thermometry every year that extensively covers many aspects of radiation thermometry. Routine intercomparisons of the thermodynamic temperature scale are done with other national measurement laboratories for international verification of the accuracy of the issued calibrations. We describe research into alternatives to the ITS-90: the use of absolute detector standards to directly measure the temperature of a high temperature blackbody.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Charles Gibson, Howard W. Yoon, Benjamin K. Tsai, B. Carol Johnson, and Robert D. Saunders "Noncontact thermometry in the Optical Technology Division at NIST", Proc. SPIE 4360, Thermosense XXIII, (23 March 2001);


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