Omega Speaker Systems OS523E User Manual Page 74
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B-1
Appendix: Emissivity Values
B
Table B-1 provides guidelines for estimating the emissivity of various
common materials. Actual emissivity, especially of metals, can vary
greatly depending upon surface finish, oxidation, or the presence of
contaminants. Also, emissivity or infrared radiation for some materials
varies with wavelength and temperature. To determine the exact
emissivities for most applications, follow the procedures in Appendix C.
Table B-1. Emissivity Table
METALS
Material Emissivity (ε)
Aluminum – pure highly polished plate . . . . . . . . . . . . . . . . . . . . 0.04 to 0.06
Aluminum
– heavily oxidized . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.20 to 0.31
Aluminum
– commercial sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.09
Brass
– dull plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.22
Brass
– highly polished, 73.2% Cu, 26.7% Zn . . . . . . . . . . . . . . . . . . . . 0.03
Chromium
– polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.08 to 0.36
Copper
– polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05
Copper
– heated at 600°C (1110°F) . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.57
Gold
– pure, highly polished or liquid . . . . . . . . . . . . . . . . . . . . 0.02 to 0.04
Iron and steel (excluding stainless)
– polished iron . . . . . . . . . . . . 0.14 to 0.38
Iron and steel (excluding stainless)
– polished cast iron . . . . . . . . . . . . . . 0.21
Iron and steel (excluding stainless)
– polished wrought iron . . . . . . . . . . . 0.28
Iron and steel (excluding stainless)
– oxidized dull wrought iron . . . . . . . . 0.94
Iron and steel (excluding stainless)
– rusted iron plate . . . . . . . . . . . . . . . 0.69
Iron and steel (excluding stainless)
– polished steel . . . . . . . . . . . . . . . . . 0.07
Iron and steel (excluding stainless)
– polished steel oxidized at
600°C (1110°F) . . . . . . . . . . . . . . . 0.79
Iron and steel (excluding stainless)
– rolled sheet steel . . . . . . . . . . . . . . . 0.66
Iron and steel (excluding stainless)
– rough steel plate . . . . . . . . . 0.94 to 0.97
Lead
– gray and oxidized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.28
Mercury
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.09 to 0.12
Molybdenum filament
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.10 to 0.20
Nickel
– polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07
Nickel
– oxidized at 649 to1254°C (1200°F to 2290°F) . . . . . . . 0.59 to 0.86
Platinum
– pure polished plate . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 to 0.10
Platinum
– wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07 to 0.18
Silver
– pure and polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02 to 0.03
Stainless steel
– polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07
Stainless steel
– Type 301 at 232 to 941°C (450°F to 1725°F) . . . 0.54 to 0.63
Tin
– bright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.06
Tungsten
– filament . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.39
Zinc
– polished commercial pure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05
Zinc
– galvanized sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.23
- User’s Guide 1
- Unpacking Instructions 3
- TABLE OF 6
- CONTENTS 6
- 1.1 Introduction 8
- General Description 10
- Distance to Spot Size Ratio 11
- OS523E-1 30:1 11
- OS523E-2 60:1 11
- OS523E-3 68:1 11
- 1.2 Parts of the Thermometer 12
- OMEGASCOPE 13
- 2.1.2 ac Power Operation 16
- 2.1.1 Battery Operation 16
- SPOT DIA. * (IN) 17
- SPOT DIA. * (CM) 17
- D:S = 60:1 19
- D:S = 110:1 20
- 2.2.1 Measurement Techniques 21
- Figure 2-11 Recorder Hookup 22
- Real Time Modes 24
- * While in these 7 modes: 25
- 2.3.1 Adjusting Emissivity 26
- D:S = 10:1 28
- D:S = 6.5:1 29
- 2.3.5 Laser Sighting Status 30
- Compensation 34
- OS523E, OS524E) 35
- Software Installation: 35
- Menu Description 38
- 2.3.13 PC Interface Commands 40
- (OS534E, OS523E, OS524E) 42
- (OS523E, OS524E,OS534E) 43
- Pull Trigger 45
- – Disabled 46
- Laser Sighting 48
- 3.1 Warnings and Cautions 48
- 3.2 Description 49
- 3.4 Laser Sighting Status 50
- 4.1 Sighting Scope 52
- Sighting Scope 52
- Digital Video Camera 54
- 5.1 Camera Parts 54
- 5.2 Battery Installation 54
- 5.3 Turning Camera ON/OFF 54
- 5.4 Menu Selection 54
- Safety Warning 56
- 6.2 Cleaning the Lens 57
- Troubleshooting Guide 58
- Specifications 62
- 4"-20 UNC 64
- Glossary of Key Strokes 68
- Thermal Radiation 70
- Blackbody 71
- Spectral Distribution 71
- Calculating Temperature 72
- Optics Field of View 73
- Appendix: Emissivity Values 74
- NONMETALS 75
- Method 1 76
- Method 2 76
- Method 3 77
- Method 4 78
- Method 5 78
- WARRANTY/DISCLAIMER 83
- RETURN REQUESTS / INQUIRIES 83
- OMEGA…Of Course! 84
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