Beam Polarization - HP 5501A Operating And Service Manual

The displacement information is not affected by vibrations of the laser source or the receiver,
but an offset of more than 2.5 mm (0.100 inch) will reduce the amount of light reaching the
receiver and make the system more sensitive to other sources of attenuation.
TO RECEIVER
C
* A
. . . . . . . . . . . . . . .
I
LEGEND:
111111111111
VERTICAL POLARIZATION
: . * . * . * . * . * . * . *
+:. $ . : . : . : . : . : HORI Z ONTAL POLAR1 ZATlON
. . . .
. . . . .
THIS DISTANCE
13.8 mm (OPTICAL PATH)
TO RECEIVER
FROM
LASER
Figure 2-7. Beam Polarization