IR Absorbing Paint
IR Absorbing Paint
(OP)
Is it possible to buy paint which absorbs IR light?
I would like to measure the temperature of a small target (1mmx1mm) using an optical pyrometer. The problem is that I will probably end up measurinmg the reflected heat from the the surfaces around the target. It has been suggested that I could paint around the target with a paint that would reduce the IR reflections. Any clues?
Regards
Matt
I would like to measure the temperature of a small target (1mmx1mm) using an optical pyrometer. The problem is that I will probably end up measurinmg the reflected heat from the the surfaces around the target. It has been suggested that I could paint around the target with a paint that would reduce the IR reflections. Any clues?
Regards
Matt





RE: IR Absorbing Paint
However, high absorbance means also high emittance. Therefore, a black background will emit a truckload of energy anyway. You need to cool the background. This can be done with either a reflective or absorptive background.
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RE: IR Absorbing Paint
Thanks for your response.
I intend to cool the back ground with water flowing through a tube near to the surface.
Regards
Matt
RE: IR Absorbing Paint
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RE: IR Absorbing Paint
RE: IR Absorbing Paint
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RE: IR Absorbing Paint
http://www.intermat.gr/
--Scott
http://wertel.eng.pro
RE: IR Absorbing Paint
RE: IR Absorbing Paint
You want the adjacent area to contribute as little IR energy as possible, so the poor man's black body black paint is not appropriate for the adjacent area.
I'm not sure how emissive the shiny aluminum spray paint is, but what about surrounding the adjacent area with aluminum foil or something shiny and reflective with very low emissivity?
Dan
RE: IR Absorbing Paint