Transfer Calibration of Heat Flux Sensors at NIST.
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
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899