© ICSPI Corp. 2007-2021
nGauge AFM User Manual 2.0
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Controls
Description
Manual Sweep
Manual Sweep will perform a frequency sweep from Start Frequency to
Stop Frequency, incrementing the frequency by Step Size. The results will
be displayed in the main Frequency Sweep plot.
Clear
Clears all the results from the main Frequency Sweep plot.
8.2.
Approach Advanced Controls
In the approach tab, click on
Show
Advanced Controls
. These additional controls are for the
controller, and the coarse Z positioning.
Parameter
Description
Proportional
The proportional gain coefficient of the PI controller. See Section 5.8.3
Proportional and Integral Control for details on tuning the controller.
Integral
The integral gain coefficient of the PI controller. See Section 5.8.3
Proportional and Integral Control for details on tuning the controller.
Setpoint
The tip oscillation amplitude that the controller will try to maintain.
Increasing this value can be thought of as applying less force between
the tip and sample. Decreasing this value can be thought of as
applying more force between the tip and sample.
Enable/Disable
Manually turns the controller on or off.
