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Aperture Proximity Effects in High Heat Flux Sensors Calibration.


pdf icon Aperture Proximity Effects in High Heat Flux Sensors Calibration. (64 K)
Murthy, A. V.; Tsai, B. K.; Saunders, R. D.

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.", 2001.

Journal of Research of the National Institute of Standards and Technology, Vol. 103, No. 6, 621-624, November/December 1998.

Available from:

For More Information on NIST SP 971 visit: WEBSITE: http://www.bfrl.nist.gov/866/heatflux/index.htm
Order number: PB98-146301

Keywords:

heat flux; sensors; calibration

Abstract:

In transfer calibration of heat flux sensors, a correction for the irradiance distribution across the sensing area may be required when the sensing areas of reference and test sensors are different. A method to calculate this correction using well known equations for the configuration factors is presented. Also, estimates of the correction for test conditions corresponding to the transfer calibration technique in use at the National Institute of Standards and Technology (NIST) are given.