Design, development, and evaluation of a simple blackbody radiative source.
This paper presents a simple design and the testing of a blackbody prototype. The physical properties and geometry of the cavity produce a radiator or blackbody with an emissivity greater than 0.99. The prototype has the advantages of having a traditional spherical cavity made of alumina refractory cement and a radiative emission very close to that of an ideal blackbody. The prototype can be used as a calibration standard for other radiation measuring instruments or sensors. Experimental measurements of radiant flux of the prototype measured with a calibrated infrared radiometer and a wide spectrum radiometer are also presented. The prototype is easy to construct and the material required are available to most research centers, laboratories, industries, and universities.
Centro de Investigación en Energía, Universidad Nacional Autónoma de México, Priv. Xochicalco s/n, Temixco, Mor. 62580, Mexico.
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Castrejón-García
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Castrejón-Pita
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Castrejón-Pita