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Object's surface temperature from the emissivity (temperature known for various emissivites)

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SMKRe

Mechanical
May 17, 2023
44
I have measured object temperature by setting emissivity in the infrared thermometer. How to calculate the temperature for the emissivity of 0.83

Emissivity/ "infrared Temperature (deg C)"
0.5 / 68.7
0.7 / 58.5
0.83 / -?
0.96 / 50.7
1 / 49.8

 
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Plot the 4 values that you have in Excel, fit a curve, then use curve to calc new point.
 
You need a contact thermometer to find the actual temperature so you can tell what the emissivity is from the readings you made.
 
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