FLIR T4xx series User Manual page 12

Table of contents
29.4 Insulation deficiencies............................................................ 116
29.4.1 General.................................................................... 116
29.4.2 Figure ...................................................................... 116
29.5 Draft .................................................................................. 117
29.5.1 General.................................................................... 117
29.5.2 Figure ...................................................................... 117
30 About FLIR Systems ...................................................................... 118
30.1 More than just an infrared camera ............................................ 119
30.2 Sharing our knowledge .......................................................... 119
30.3 Supporting our customers....................................................... 119
30.4 A few images from our facilities ................................................ 120
31 Glossary ...................................................................................... 121
32 Thermographic measurement techniques ........................................ 124
32.1 Introduction ........................................................................ 124
32.2 Emissivity............................................................................ 124
32.2.1 Finding the emissivity of a sample .................................. 124
32.3 Reflected apparent temperature............................................... 127
32.4 Distance ............................................................................. 127
32.5 Relative humidity .................................................................. 127
32.6 Other parameters.................................................................. 127
33 History of infrared technology......................................................... 129
34 Theory of thermography................................................................. 132
34.1 Introduction ......................................................................... 132
34.2 The electromagnetic spectrum................................................. 132
34.3 Blackbody radiation............................................................... 132
34.3.1 Planck's law .............................................................. 133
34.3.2 Wien's displacement law.............................................. 134
34.3.3 Stefan-Boltzmann's law ............................................... 135
34.3.4 Non-blackbody emitters............................................... 136
34.4 Infrared semi-transparent materials........................................... 138
35 The measurement formula.............................................................. 139
36 Emissivity tables ........................................................................... 143
36.1 References.......................................................................... 143
36.2 Tables ................................................................................ 143
#T559879; r.15723/15723; en-US
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