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## Main Question or Discussion Point

Hi

I am trying to get my head around Emissivity and was wondering if anyone could help.

There is a "blackbody" with emissivity of 0.97.

We want to use it to see whether some IR thermometers are giving suitable readings. Unfortunately the emissivity of the thermometer is unknown and cannot be altered so we will only be able to estimate their accuracy.

So if the "blackbody" is set to a temperature say 50°C, will it emit 97% of this temperature? So the IR thermometer should give a reading around 50*0.97 = 48.5° if it does not include a correction???

I would be grateful of any help. I have done some reading on the subject but I am getting more confused as most websites say about adjusting the IR thermometer but this is not possible in my situation.

Many thanks

I am trying to get my head around Emissivity and was wondering if anyone could help.

There is a "blackbody" with emissivity of 0.97.

We want to use it to see whether some IR thermometers are giving suitable readings. Unfortunately the emissivity of the thermometer is unknown and cannot be altered so we will only be able to estimate their accuracy.

So if the "blackbody" is set to a temperature say 50°C, will it emit 97% of this temperature? So the IR thermometer should give a reading around 50*0.97 = 48.5° if it does not include a correction???

I would be grateful of any help. I have done some reading on the subject but I am getting more confused as most websites say about adjusting the IR thermometer but this is not possible in my situation.

Many thanks