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Transfer Calibration Validation Tests on a Heat Flux Sensor in the 51 mm High-Temperature Blackbody



A V. Murthy, Benjamin K. Tsai, Robert D. Saunders


Facilities and techniques to characterize heat flux sensors are under development at the National Institute of Standards and Technology. As a part of this effort, a large aperture high-temperature blackbody was commissioned recently. The graphite tube blackbody, heated electrically, has a cavity diameter of 51 mm and can operate up to a maximum temperature of 2773 K. A closed-loop cooling system using a water-to-water heat exchanger cools electrodes and the outer reflecting shield. This paper describes the newly developed blackbody facility and the validation tests conducted using a reference standard Schmidt-Boelter heat flux sensor. The transfer calibration results obtained on the Schmidt-Boelter sensor agreed with the previous data within the experimental uncertainty limits.
Journal of Research (NIST JRES) -
106 No. 5


black bodies, heat flux, sensors, thermal radiation, transfer calibration


Murthy, A. , Tsai, B. and Saunders, R. (2001), Transfer Calibration Validation Tests on a Heat Flux Sensor in the 51 mm High-Temperature Blackbody, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD (Accessed June 19, 2024)


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Created September 30, 2001, Updated October 12, 2021