Table of contents
19.4 Distance ............................................................................... 83
19.5 Relative humidity .................................................................... 83
19.6 Other parameters.................................................................... 83
20 History of infrared technology........................................................... 85
21 Theory of thermography................................................................... 88
21.1 Introduction ........................................................................... 88
21.2 The electromagnetic spectrum................................................... 88
21.3 Blackbody radiation................................................................. 88
21.3.1 Planck’s law ................................................................ 89
21.3.2 Wien’s displacement law................................................ 90
21.3.3 Stefan-Boltzmann's law ................................................. 91
21.3.4 Non-blackbody emitters................................................. 92
21.4 Infrared semi-transparent materials............................................. 94
22 The measurement formula................................................................ 95
23 Emissivity tables ............................................................................. 99
23.1 References............................................................................ 99
23.2 Tables .................................................................................. 99
#T559498; r.22370/22370; en-US
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