NASA NTRS · 19780027483
A low cost, portable instrument for measuring emittance
Abstract
A low cost, portable instrument has been developed with which emittance can be measured by comparison to a standard. A reflector collects infra-red radiation from a heated sample onto a low mass, black detector and the temperature rise of the black detector is measured with a thermocouple and meter. Graphical examples are presented for determination of emittance from measurements made on a sample at any known temperature.
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Mcdonald, G.. 1977-06-01. A low cost, portable instrument for measuring emittance. https://ntrs.nasa.gov/citations/19780027483
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