
11015 Thermographic measurement techniques .....................................................................................................
11015.1 Introduction .....................................................................................................................................................
11015.2 Emissivity ............................................................................................................................................................
11115.2.1 Finding the emissivity of an object .......................................................................................
11115.2.1.1 Using a thermocouple .......................................................................................
11115.2.1.2 Using reference emissivity ...............................................................................
11115.3 Reflected ambient temperature ................................................................................................................
11216 History of infrared technology .............................................................................................................................
11617 Theory of thermography .........................................................................................................................................
11617.1 Introduction ......................................................................................................................................................
11617.2 The electromagnetic spectrum ..................................................................................................................
11717.3 Blackbody radiation .......................................................................................................................................
11817.3.1 Planck’s law ....................................................................................................................................
11917.3.2 Wien’s displacement law ..........................................................................................................
12117.3.3 Stefan-Boltzmann's law .............................................................................................................
12217.3.4 Non-blackbody emitters ...........................................................................................................
12417.4 Infrared semi-transparent materials ........................................................................................................
12618 The measurement formula .....................................................................................................................................
13219 Emissivity tables ..........................................................................................................................................................
13219.1 References .........................................................................................................................................................
13219.2 Tables ..................................................................................................................................................................
149Index ..................................................................................................................................................................................
vi Publ. No. 1 557 945 Rev. a43 – ENGLISH (EN) – April 6, 2004
Comentários a estes Manuais