Blackbody emissivity different to thermometers

[beth12]

I am doing some research on thermometers and have a blackbody to test some infrared ones. Unfortunately the blackbody has an emissivity of 0.97 +/- 0.02 and the thermometer has an emissivity of approximately 0.96? How do I correct for the differences?

I have had a quick look online and other forum questions but I haven't been able to find anything relevant as most say change the value on the thermometer but this is not possible in this case.

I would be grateful of any advice or help as I want to make sure my calculations are correct.

Thank you

 

[Future Bruno]

for your time.In order to correct for the differences in emissivity, you may need to use a correction factor. This correction factor would be the ratio of the blackbody emissivity (0.97 +/- 0.02) to the thermometer emissivity (0.96). Since the thermometer emissivity is slightly lower than the blackbody emissivity, the correction factor will be slightly greater than 1. To calculate the correction factor, simply divide the blackbody emissivity by the thermometer emissivity. For example, if the blackbody emissivity is 0.97 and the thermometer emissivity is 0.96, then the correction factor would be 0.97/0.96 = 1.0104. You can then use this correction factor to adjust the readings from the thermometer to account for the difference in emissivity.