User's Manual

Table of contents
32.4 The differences between a calibration performed by a user and
that performed directly at FLIR Systems..................................... 188
32.5 Calibration verification and adjustment ...................................... 188
32.6 Non-uniformity correction........................................................ 189
32.7 Thermal image adjustment (thermal tuning) ................................ 189
33 History of infrared technology......................................................... 190
34 Theory of thermography................................................................. 193
34.1 Introduction ......................................................................... 193
34.2 The electromagnetic spectrum................................................. 193
34.3 Blackbody radiation............................................................... 193
34.3.1 Planck’s law .............................................................. 194
34.3.2 Wien’s displacement law.............................................. 195
34.3.3 Stefan-Boltzmann's law ............................................... 196
34.3.4 Non-blackbody emitters............................................... 197
34.4 Infrared semi-transparent materials........................................... 199
35 The measurement formula.............................................................. 200
36 Emissivity tables ........................................................................... 204
36.1 References.......................................................................... 204
36.2 Tables ................................................................................ 204
#T810190; r. AB/39747/39747; en-US
xi