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V.2.d.
Starting a scan
To finally start the scan check the following parameters in the feedback box
as already shown before:
Actual Value:
SPM ADC1
Z limit min:
0nm
Z limit max:
maximum z scanner stroke (see data sheet
at the end of the manual).
P:
1-5 m
I:
10-50 Hz
Setpoint:
Working point WP as described in the two
subsections above
Inv. Polarity:
not checked for contact mode(signal ADC1
is expected to increase with increasing Z)
checked for non-contact mode(signal ADC1
is expected to decrease with increasing Z)
In the ‘Scanner’ box select the scan area (blue shaded area) of interest and
choose a slow ‘Scan Speed’ (< 3 µm/s) to start the scan.
Now the feedback can be activated by checking the ‘Loop On’ box. The z
piezo will expand and the tip will go into contact.
Before you start the scan, select the appropriate signals in the ‘Frame/Line
View’ tab:
Содержание attoAFM I
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