ALIBI ALI-NT2002R, Руководство пользователя

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95 ALI-NT4002R, ALI-NT2002R Cameras User Manual
APPENDIX D: THERMAL EMISIVITY CHART
APPENDIX D
Thermal Emissivity Chart
The emissivity coefficient for some common materials at a temperature 300 K are shown in the following table. Note that the
emissivity coefficient for some products varies with temperature.
Surface Material Emissivity Coefficient - ε - Brass Dull Plate 0.22
Alloy 24ST Polished 0.09 Brass Rolled Plate Natural
Surface
0.06
Alumina, Flame sprayed 0.8 Brass Polished 0.03
Aluminum Commercial sheet 0.09 Brass Oxidized 600oC 0.6
Aluminum Foil 0.04 Brick, red rough 0.93
Aluminum Commercial Sheet 0.09 Brick, fireclay 0.75
Aluminum Heavily Oxidized 0.2 - 0.31 Cadmium 0.02
Aluminum Highly Polished 0.039 - 0.057 Carbon, not oxidized 0.81
Aluminum Anodized 0.77 Carbon filament 0.77
Aluminum Rough 0.07 Carbon pressed filled surface 0.98
Aluminum paint 0.27 - 0.67 Cast Iron, newly turned 0.44
Antimony, polished 0.28 - 0.31 Cast Iron, turned and heated 0.60 - 0.70
Asbestos board 0.96 Cement 0.54
Asbestos paper 0.93 - 0.945 Chromium polished 0.058
Asphalt 0.93 Clay 0.91
Basalt 0.72 Coal 0.80
Beryllium 0.18 Concrete 0.85
Beryllium, Anodized 0.9 Concrete, rough 0.94
Bismuth, bright 0.34 Concrete tiles 0.63
Black Body Matt 1.00 Cotton cloth 0.77
Black lacquer on iron 0.875 Copper electroplated 0.03
Black Parson Optical 0.95 Copper heated and covered
with thick oxide layer
0.78
Black Silicone Paint 0.93 Copper Polished 0.023 - 0.052
Black Epoxy Paint 0.89 Copper Nickel Alloy, polished 0.059
Black Enamel Paint 0.80 Glass smooth 0.92 - 0.94