VOLTCRAFT IR 2201-50D Bedienungsanleitung Seite 33

Infrared temperature measurement
Surface
Asphalt
Concrete
Chromium oxide
Ice
Ferric oxide
Earth
Hard plaster
Glass
Rubber (black)
Ceramic
Carbon (powder)
Copper oxide
Varnish
The emission ratios in the above table are approximate values. Parameters such as the shape and
characteristics of the material can affect the emissivity of an object.
Emissivity
0.90 – 0.98
0.94
0.81
0.96 – 0.98
0.78 – 0.82
0.92 – 0.96
0.80 – 0.90
0.90 – 0.95
0.94
0.90 – 0.94
0.96
0.78
0.80 – 0.95
Surface
Varnish (matt)
Marble
Human skin
Mortar
Paper
Plastic
Sand
Foam
Fabric (black)
Textiles
Water
Cement
Brick
Emissivity
0.97
0.94
0.98
0.89 – 0.91
0.70 – 0.94
0.85 – 0.95
0.90
0.75 – 0.80
0.98
0.90
0.92 – 0.96
0.96
0.93 – 0.96
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