3-2 Chapter 3: Module components SHB_U14
Emitter
Location in Module
The emitter inserts are attached to the modulator receiver disk (aluminum block).
Depending on the measurement task, one or two emitter inserts can be installed.
If only one emitter insert is used, it can be placed in the first or second beam path
depending on the requirements of the measurement application.
Structure
The emitter insert consists of a reflective body which houses a wire filament in a
ceramic shell. The unit is sealed behind a gas-tight, infrared-transparent window.
To increase its service life the emitter insert is filled with a special gas.
Function
Depending on module equipment, sample components and measurement ranges,
the emitter units are supplied with approx. 5-10 VDC.
The filament then emits a broadband constant infrared light beam of corresponding
intensity.
Figure 3-1
Emitter insert
1 Infrared-transparent window
2 Emitter filament (not visible here)
3 Electrical connections
4 Reflector housing
Figure 3-2
Modulator with
emitter insert
1 Modulator (receiver disk)
2 Emitter insert
To Next Page
Loading...
