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Transfer Calibration of Heat Flux Sensors at NIST.


pdf icon Transfer Calibration of Heat Flux Sensors at NIST. (1129 K)
Murthy, A. V.; Tsai, B. K.

NIST SP 971; August 2001.

NIST SP 971: "Collected Reports and Publications by the National Institute of Standards and Technology on Heat Flux Gage Calibration and Usage." AND National Heat Transfer Conference, 32nd ASME Proceedings. Volume 7. HTD-Vol. 345. American Society of Mechanical Engineers (ASME). 1997, Kaminski, D.; Smith, A. M.; Smith, T. F., Editor(s)(s), 81-88 pp, 2001.

Available from:

For More Information on NIST SP 971 visit: WEBSITE: http://www.bfrl.nist.gov/866/heatflux/index.htm

Keywords:

sensors; heat flux; calibrating

Abstract:

An ongoing program at the National Institute of Standards and Technology (NIST) aims to develop competence in Calibration of high heat-flux sensors and to provide a source of calibration traceability to other users and manufacturers. This paper describes the experimental methods developed using High power lasers and blackbody radiation as radiant sources to transfer the calibration from a primary radiometric standard to the heat flux sensors up to 100 kW/m2. An electrical substitution radiometer, with calibration traceable to the NIST High Accuracy Cryogenic-Radiometer (HACR), is used as a transfer standard. A graphite tube high temperature blackbody is used as a broadband radiant source to transfer the calibration from the transfer standard to the heat flux sensors. Preliminary results of calibration of a Schmidt-Boelter heat flux sensor using the methods developed are presented. Further plans to extend the calibration capability up to 200 kW/m2 are discussed