The Basic Principle Of The Uv-Detector 2500; Optical Path Of The Uv-Detector 2500 - Knauer Smartlibe UV Detector 2500 Handbuch

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The basic principle of the UV-Detector 2500

Optical Path of the UV-Detector 2500

Fig. 2
Fig. 3
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9
Optical Path of the UV-Detector 2500
A beam of emitted light from the lamp (1) is faded out by a slit (2). After
passing (optionally) a filter (3) it is focussed by a concave mirror (4) on a
flat grating monochromator (5) to fade out the desired wavelength. The
beam is then splitted by a half transparent mirror (6). One part beam
delivers the reference signal (9) and the other after passing the flow cell
(7) delivers the measurement signal (8).
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Optical Bench and Optical Path of the UV-Detector 2500
The basic principle of the UV-Detector 2500
3 2 1
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4 3
1. Lamp (deuterium or
halogen)
2. Slit
3. Cutoff filter
4. Concave mirror
5. Flat grating
6. Half transparent
mirror
7. Flow cell
8. Photo diode
9. Reference
photo diode
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1
5