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Settings
Settings Menu
Emissivity
The
Emissivity
setting allows you to set the emissivity level (
). The Thermal Laser is
equipped with five common emissivity value presets. Choose the most applicable setting for your
application. The default setting is (0.95) (Standard).
The Thermal Laser measures and displays the emitted infrared radiation from an object(s).
To accurately calculate temperature (from infrared radiation), the emissivity value of the object
being measured must be entered. The emissivity value is used to effectively calculate the
displayed temperature value.
Emissivity is the amount of radiation emitted from an object, compared to that of a perfect
blackbody (standard of radiation) of the same temperature.
Emissivity can be effected by other factors (listed below), which is beyond the scope of this
manual.
- Core material makeup
- Surface condition
- Temperature
- Angle of view
- Wavelength
As a general rule, objects and surfaces normally exhibit emissivity ranging from approximately
0.1 to 0.95. Materials with smooth (non oxidized) surfaces, usually range from 0.05 to 0.50,
however these values may change if the surface is rough or oxidized.
Figure 5-10
(0.15)
(0.35)
(0.55)
(0.75)
(0.95) (Standard)
Содержание Thermal Laser
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