chapter  78
Thermal Imaging
Pages 20

All objects at temperatures above absolute zero emit electromagnetic radiation. Radiation thermometry makes use of this fact to estimate the temperatures of objects by measuring the radiated energy from selected regions. œermal imaging takes the process one stage further and uses the emitted radiation to generate a picture of the object and its surroundings, usually on a TV display or computer monitor, in such a way that the desired temperature information is easily interpreted by the user.