Operating instructions

MEASUREMENT MODES
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vibration and a reference signal is measured. This phase shift changes when
the resonance characteristic of the cantilever changes due to changes in the
tip-sample interaction. Thus, the Phase contrast mode can be used to pro-
duce material contrast when there is a significant difference in the tip sam-
ple interaction of these materials.
Proceed as follows to operate the easyScan 2 AFM in the Phase Contrast
mode:
For Phase contrast mode, you can use the same cantilevers that you use for
Dynamic force mode.
- Select the Phase Contrast mode in the Operating Mode panel.
To display the measurement results:
- Create a new chart in the Imaging window by clicking in the Chart
bar.
- If necessary, increase the size of the window to make space for the new
chart.
- Select the ‘Color map’ chart type by .
- Select the ‘Phase’ signal by .
The reference phase is usually set automatically after the approach so that
the average phase shift lies in the centre of the measurement range. To auto-
matically readjust the phase shift:
- Ensure that you have selected the ‘Standard level’ or ‘Advanced level’ user
interface mode in the User Interface dialog.
- Click ‘Reference phase’: in the Operating mode panel.
If you do not want to automatically set the reference phase:
- In the Operating mode panel, deactivate Reference phase: ‘Auto set’.
- Enter the reference phase using the ‘Reference phase’ input.