User's Manual

Table of contents
16.2 Emissivity.............................................................................. 69
16.2.1 Finding the emissivity of a sample.................................... 69
16.3 Reflected apparent temperature................................................. 73
16.4 Distance ............................................................................... 73
16.5 Relative humidity .................................................................... 73
16.6 Other parameters.................................................................... 73
17 History of infrared technology........................................................... 74
18 Theory of thermography................................................................... 77
18.1 Introduction ........................................................................... 77
18.2 The electromagnetic spectrum................................................... 77
18.3 Blackbody radiation................................................................. 77
18.3.1 Planck’s law ................................................................ 78
18.3.2 Wien’s displacement law................................................ 79
18.3.3 Stefan-Boltzmann's law ................................................. 80
18.3.4 Non-blackbody emitters................................................. 81
18.4 Infrared semi-transparent materials............................................. 83
19 The measurement formula................................................................ 84
20 Emissivity tables ............................................................................. 88
20.1 References............................................................................ 88
20.2 Tables .................................................................................. 88
#T559828; r. AK/40423/40423; en-US
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