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DOE OSTI · 2588955

Infrared Thermometer Instrument Handbook

Howie, Josh [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]·Morris, Victor [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]·Goldberger, Lexie [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]
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Abstract

The infrared thermometer (IRT) is a ground-based radiation pyrometer that provides measurements of the brightness temperature of the scene in its field of view. The ground IRT (sometimes referred to as the upwelling instrument) lens has a wide field of view for measuring the radiating temperature of the ground surface. It measures in a narrow range of the infrared band, details of which can be found in Table 2. It provides data to the user averaged to 1-minute resolution. The infrared thermometer for sea-surface temperature (IRTSST) is a ship-based radiation pyrometer that provides measurements of the temperature of the sea surface. The upwelling infrared emission is determined with two different IRTs for over-ocean field campaigns and the data is at 1-second temporal resolution. The IRTs are mounted at heights varying between 2 and 42 m above the ground, oriented so the mounting platform and other human made objects are not in the field of view, and also to ensure that the ground and vegetation cover are representative of the local area. The Heitronics IRT is generally mounted inside a small enclosure, and the Apogee IRT is shielded by a cylindrical enclosure that is part of the design from the manufacturer.

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Howie, Josh [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)], Morris, Victor [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)], Goldberger, Lexie [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]. 2025-09-01. Infrared Thermometer Instrument Handbook. https://doi.org/10.2172/2588955

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