Black-Globe termometer

Black-Globe thermometer

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M1-GT Black globe thermometer, or Vernon globe, is a painted 15 cm diameter very thin-copper sphere, with thermal emittance (ε) of 0.95, equipped with a Pt100 probe inside. The sphere shape is used because of its proximity to the shape of a human body (thermally speaking). The surface is painted black, therefore the instrument is also known as “black globe thermometer”.

The value measured with black globe thermometer can be used to calculate the mean radiant temperature (MRT).