Veeco Dektak 150, Руководство пользователя

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9-20 Calibration and Maintenance
Figure 9-27: Optical Assembly Locking Screw
Adjusting the Optional Zoom Optics
1 Place the vertical standard that came with your system on the stage beneath the stylus, with the printing
facing the front of the system (
Figure 9-23
). The system scans from front to back, so be sure there are at
least a few millimeters of the standard located to the back of the stylus tip.
2 Press the Stylus Down button to lower the stylus onto the standard (
Figure 9-23
).
3 Adjust the zoom optics:
a. Loosen the zoom lock screw (see
Figure 9-28
).
b. Rotate the zoom ring until you arrive at the desired position (see
Figure 9-28
).
c. Tighten the zoom lock screw (see
Figure 9-28
).
d. If necessary, refocus.
Figure 9-28: Adjusting the Optional Zoom Optics
4 Watching the computer monitor, turn the thumb screws on the back of the mirror plate (if necessary) to
align the stylus tip with the center of the crosshairs (
Figure 9-25
). This is a delicate adjustment, so turn
the thumb screws in increments of only half a turn.
5 If the image of the stylus (see
Figure 9-25
) is far off the center of the screen, or not even on the screen,
you must performed the procedures outlined in
Adjusting the Coarse Alignment on page 9-22
.
Optical
assembly
locking screw