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PpD-41,PD-3700
Regular screwdriver
Grating
adjustment
slit
Adjustment locations
(How to find the null point]
This point is called the null point. When adjusting the grating, this null point is found and used as the reference
position.
Turning the grating clockwise
lee
the grating counterclockwise
Grating adjustment position
point
Figure 3
AVY
Vn
Null point wave form
|§ Maximum amplitude
Wave form other than
wave form
the null point
42
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