FLIR B series User Manual page 11

28.3.4
28.3.5
28.4 Reporting ..............................................................................................................................
28.5 Different types of hot spots in electrical installations ...........................................................
28.5.1
28.5.2
28.5.3
28.5.4
28.5.5
28.5.6
28.5.7
28.6 Disturbance factors at thermographic inspection of electrical installations ........................
28.6.1
28.6.2
28.6.3
28.6.4
28.7 Practical advice for the thermographer ................................................................................
28.7.1
28.7.2
28.7.3
28.7.4
28.7.5
29 About FLIR Systems .......................................................................................................................
29.1 More than just an infrared camera .......................................................................................
29.2 Sharing our knowledge ........................................................................................................
29.3 Supporting our customers ...................................................................................................
29.4 A few images from our facilities ...........................................................................................
30 Glossary ...........................................................................................................................................
31 Thermographic measurement techniques ...................................................................................
31.1 Introduction ..........................................................................................................................
31.2 Emissivity ..............................................................................................................................
31.2.1
31.3 Reflected apparent temperature ..........................................................................................
31.4 Distance ................................................................................................................................
31.5 Relative humidity ..................................................................................................................
31.6 Other parameters ..................................................................................................................
32 History of infrared technology ......................................................................................................
33 Theory of thermography ................................................................................................................
33.1 Introduction ...........................................................................................................................
33.2 The electromagnetic spectrum ............................................................................................
33.3 Blackbody radiation ..............................................................................................................
33.3.1
33.3.2
33.3.3
33.3.4
33.4 Infrared semi-transparent materials .....................................................................................
Publ. No. 1558792 Rev. a460 - ENGLISH (EN) - July 1, 2010
Normal operating temperature .............................................................................
Classification of faults ...........................................................................................
Reflections ............................................................................................................
Solar heating .........................................................................................................
Inductive heating ...................................................................................................
Load variations ......................................................................................................
Varying cooling conditions ...................................................................................
Resistance variations ............................................................................................
Overheating in one part as a result of a fault in another ......................................
Wind ......................................................................................................................
Rain and snow ......................................................................................................
Distance to object .................................................................................................
Object size ............................................................................................................
From cold to hot ...................................................................................................
Rain showers ........................................................................................................
Emissivity ..............................................................................................................
Reflected apparent temperature ...........................................................................
Object too far away ...............................................................................................
Finding the emissivity of a sample .......................................................................
31.2.1.1 Step 1: Determining reflected apparent temperature .......................
31.2.1.2 Step 2: Determining the emissivity ...................................................
Planck's law ..........................................................................................................
Wien's displacement law ......................................................................................
Stefan-Boltzmann's law .........................................................................................
Non-blackbody emitters .......................................................................................
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