FLIR T Series

18628.3.4 Normal operating temperature .............................................................................
18728.3.5 Classification of faults ...........................................................................................
18928.4 Reporting ..............................................................................................................................
19128.5 Different types of hot spots in electrical installations ...........................................................
19128.5.1 Reflections ............................................................................................................
19128.5.2 Solar heating .........................................................................................................
19228.5.3 Inductive heating ...................................................................................................
19228.5.4 Load variations ......................................................................................................
19328.5.5 Varying cooling conditions ...................................................................................
19428.5.6 Resistance variations ............................................................................................
19428.5.7 Overheating in one part as a result of a fault in another ......................................
19628.6 Disturbance factors at thermographic inspection of electrical installations ........................
19628.6.1 Wind ......................................................................................................................
19628.6.2 Rain and snow ......................................................................................................
19728.6.3 Distance to object .................................................................................................
19828.6.4 Object size ............................................................................................................
20028.7 Practical advice for the thermographer ................................................................................
20028.7.1 From cold to hot ...................................................................................................
20028.7.2 Rain showers ........................................................................................................
20028.7.3 Emissivity ..............................................................................................................
20128.7.4 Reflected apparent temperature ...........................................................................
20128.7.5 Object too far away ...............................................................................................
20229 About FLIR Systems .......................................................................................................................
20329.1 More than just an infrared camera .......................................................................................
20329.2 Sharing our knowledge ........................................................................................................
20329.3 Supporting our customers ...................................................................................................
20429.4 A few images from our facilities ...........................................................................................
20630 Glossary ...........................................................................................................................................
21031 Thermographic measurement techniques ...................................................................................
21031.1 Introduction ..........................................................................................................................
21031.2 Emissivity ..............................................................................................................................
21131.2.1 Finding the emissivity of a sample .......................................................................
21131.2.1.1 Step 1: Determining reflected apparent temperature .......................
21331.2.1.2 Step 2: Determining the emissivity ...................................................
21431.3 Reflected apparent temperature ..........................................................................................
21431.4 Distance ................................................................................................................................
21431.5 Relative humidity ..................................................................................................................
21431.6 Other parameters ..................................................................................................................
21532 History of infrared technology ......................................................................................................
21933 Theory of thermography ................................................................................................................
21933.1 Introduction ...........................................................................................................................
21933.2 The electromagnetic spectrum ............................................................................................
22033.3 Blackbody radiation ..............................................................................................................
22133.3.1 Planck’s law ..........................................................................................................
22233.3.2 Wien’s displacement law ......................................................................................
22433.3.3 Stefan-Boltzmann's law .........................................................................................
22533.3.4 Non-blackbody emitters .......................................................................................
22733.4 Infrared semi-transparent materials .....................................................................................
Publ. No. 1558792 Rev. a460 – ENGLISH (EN) – July 1, 2010 xi