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102
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9 Emissivity
9.1 Definition
The intensity of infrared radiation, which is emitted by each body, depends on the temperature as well as on
the radiation features of the surface material of the measuring object. The emissivity (ε – Epsilon) is used as
a material constant factor to describe the ability of the body to emit infrared energy. It can range between 0
and 100 %. A “blackbody” is the ideal radiation source with an emissivity of 1.0 whereas a mirror shows an
emissivity of 0.1.
Figure 50:
Composition of IR radiation
I
IR radiation
ε
Emission
ρ
Reflection
τ
Transmission
ε + ρ+ τ = 1
Содержание Xi 400
Страница 1: ...Operator s Manual optris Xi 80 400 410 Spot finder IR camera...
Страница 27: ...Mechanical Installation 27 Figure 5 Xi 80 dimensions mm...
Страница 28: ...28 Figure 6 Xi 400 dimensions mm...
Страница 29: ...Mechanical Installation 29 Figure 7 Xi 410 dimensions mm...
Страница 30: ...30 Figure 8 Industrial stackable PIF Process Interface electronic box control box shutter dimensions mm...
Страница 34: ...34 Figure 11 Mounting bracket ACXIAPLAB dimensions mm weight 276 g...
Страница 36: ...36 Figure 12 Water cooling ACXIW and mounting kit ACXIxxxWAK1 dimensions mm weight 1710 g...
Страница 37: ...Mechanical Installation 37 Figure 13 Shutter for water cooling ACXISW dimensions mm weight 600 g...
Страница 39: ...Mechanical Installation 39 Figure 14 Shutter ACXIS with mounting bracket ACXIAPLAB dimensions mm weight 826 g...
Страница 40: ...40 Figure 15 Shutter ACXIS dimensions mm weight 550 g...
Страница 71: ...Functions 71 Figure 35 Possibilities of power supply for Xi 80 410 via Ethernet connection...
Страница 79: ...Functions 79 Figure 37 Configurations menu Device PIF Figure 38 Setup...
Страница 92: ...92 7 2 Software window Figure 45 Software window 1 2 3 2 5 6 7 9 4 10 11 12 1 8...
Страница 107: ...Appendix A Table of emissivity for metals 107 Appendix A Table of emissivity for metals...
Страница 108: ...108...
Страница 109: ...Appendix B Table of emissivity for non metals 109 Appendix B Table of emissivity for non metals...
Страница 118: ...118 Figure 58 Relay output at industrial PIF...
Страница 119: ...Appendix G Declaration of Conformity 119 Appendix G Declaration of Conformity...
Страница 120: ...optris Xi MA E2021 08 A...
