Understanding Infrared Thermography Reading 7 Part 2 of 2.pdf

Erroneous conclusions can have an extremely negative effect on the
measurements program and on the credibility of the thermographer.
A solid understanding of the basis on which thermographic measurements
are made will go a long way toward minimizing operator error and ensuring
the success of the thermographic program.
The subject matter in this appendix begins with a discussion of heat transfer
and how radiative heat transfer is the basis for infrared thermography. The
basic physics of infrared radiation and how it applies to instrument
performance is explained. Finally, the performance parameters of infrared
point-sensing and imaging instruments are discussed, including how to select,
calibrate, and evaluate the performance of the instrument that is best suited
to your application.
Charlie Chong/ Fion Zhang