In this experiment, a test piece of aluminum coated with blackbody paint was used to confirm the temperature difference caused by the presence or absence of infrared irradiation.
Infrared radiation was directly applied to the front surface of the specimen, while the side surface was positioned in shadow.
By observing the temperature distribution with a thermographic camera, it can be confirmed that the front surface receiving direct infrared radiation reaches a higher temperature, while the shadowed side surface remains cooler.
This result shows that in infrared heating, a temperature difference occurs between surfaces that receive radiation and those that do not.
For components with complex shapes or uneven surfaces, uneven heating may occur depending on the irradiation conditions.
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