Nanosurf easyScan 2 AFM, Руководство по эксплуатации

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PPROACH PANEL
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Approach Options (Standard, Advanced)
Tip-Position (Advanced)
Determines the Z-Position of the scanner when the approach motor stops.
When the Tip-Position is changed when the tip is already approached to
the sample, the motor will move the approach stage so, that the Z-Position
of the tip becomes equal to the set Z-Position. When a high resolution
(2 µm Z-Range) scanner is used, the Tip-Position before the approach is set
to +500 nm Advanced by default. This compensates for the residual motion
of the approach stage that occurs after the approach motor has stopped.
CAUTION
Changing the Z-Position when the tip is approached to the sample may
cause tip damage when using high resolution scanners. This can be due to
play in the approach stage, which is caused by a change in the initial load
of the approach stage bearings. Contact your local Nanosurf representative
if this seems to be the case.
The Tip-Position setting can for example be useful when a sample is mainly
a large flat surface with some deep holes in it. In this case proceed as follows:
- Ideally, first make sure that the center position of the Scan range is outside
a hole.
When the Scanner is idle (such as during approach), the tip is always
brought to the center position of the scan range.
- Set Tip-Position to about 80% of the maximum value.