Here is some good info from an innovator in this technology.
What you guys are referring to is emissivity. It may not make much difference in your application or expectation of accuracy, but you should at least be aware of it. Some higher end units have adjustable emissivity settings, lower ends are fixed. There are lookup tables for the surface you are measuring and the corresponding emissivity values. You can use them on aluminum, the main variable is the surface treatment or coating.
I keep this bookmarked.
http://www.raytek.com/Raytek/en-r0/IREducation/
What you guys are referring to is emissivity. It may not make much difference in your application or expectation of accuracy, but you should at least be aware of it. Some higher end units have adjustable emissivity settings, lower ends are fixed. There are lookup tables for the surface you are measuring and the corresponding emissivity values. You can use them on aluminum, the main variable is the surface treatment or coating.
I keep this bookmarked.
http://www.raytek.com/Raytek/en-r0/IREducation/
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