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Non-contact heat flux measurement using a transparent sensorA working non-contact heat flux sensor was demonstrated using a transparent material (sapphire) and a multiwavelength pyrometer. The pyrometer is used to measure the temperatures of the two surfaces of the sensor from the spectrum of radiation originating from them. The heat conducted through the material is determined from the temperature difference of the two surfaces and the thermal conductivity of the material. The measured heat flux is equal to the incident heat flux within experimental error indicating that no calibration would be necessary. A steady state heat flux of 100 kW/sq m was easily achieved.
Document ID
19930023141
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Ng, Daniel (NASA Lewis Research Center Cleveland, OH, United States)
Spuckler, Charles M. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1993
Subject Category
Propellants And Fuels
Report/Patent Number
NAS 1.15:106252
NASA-TM-106252
E-7974
Accession Number
93N32330
Funding Number(s)
PROJECT: RTOP 303-50-00
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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