3B SCIENTIFIC® PHYSICS |
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U14390 Polarization Demonstration Device
Operating instructions
3/03 ALF
51Base plate
4
2Angular scale
3
3Plug
24Rotary grip with a pointer
15Analyzer
The U14390 polarization device is designed for use on a daylight projector as part of qualitative and quantitative experiments conducted before large audiences at schools and universities, for example in order to demonstrate optical activity as well as determinations of specific angles of rotation, or concentrations if these angles are already known.
1.Safety notes
•Do not clean the polarization demonstration device with aggressive agents.
•Do not fill the cuvette with liquids which attack plexiglass.
•Ensure that the filters do not get scratched.
2.Description, technical data
A yellow filter and a polarizer are set in the middle of a black, plastic base plate. A cuvette marked at 50 mm and 100 mm and containing a solution of the substance to be examined is inserted into the inner holder and subsequently covered by an analyzer mounted on an outer holder equipped with a rotary knob and a pointer. Turning the analyzer allows the angle of rotation to be read on a transparent scale ranging from + 40° to –40° and having divisions of 1°.
Dimensions: |
370 mm x 330 mm x 190 mm |
Illustration 1: |
|
1Yellow filter |
5Holder with rotary knob |
2Polarizer |
and pointer |
3Holder for the cuvette 6100-mm mark |
|
450-mm mark |
7Cuvette |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
Illustration 1
2. Operating principle
Light (visible electromagnetic radiation) emitted by the daylight projector is made to pass through a yellow filter, as yellow light by definition increases the measurement accuracy.
This light oscillates in a number of planes:
y
z
LichtLight
x
y
z
x
4
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