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Channel Panels

Control Description
Data Type Channels may be assigned to any input signal available including: Deflection Error, Amplitude, Phase, Friction and so on. Any channel may be switched to Off, however, at least one channel is always on.
X Data Type Type of data that the channel data is being compared to. This data displays on the X-axis of the scope grid.
Data Scale

Voltage range for the vertical axis of the force curve plot.

NOTE: This can be overridden by selecting AutoScale On for the plot.
Data Center

Offsets centerline of scan by the amount entered.

Range or Settings:

  • Depends upon the input signal, generally ± one-half of data scale maximum.
NOTE: The Data Center offset does not become a permanent part of the data.
Deflection Sensitivity Defines the conversion factor from cantilever deflection signal voltage to nanometers of cantilever displacement (in nm/V) using data in the contact region of a force plot.
Plot Invert Inverts data along the Y-axis, effectively turning valleys into mounds and vice versa.
Average Points Averages multiple points to smooth the curve.
Effective BW

A display (you cannot input a value to it) representing the sampling frequency with display averaging taken into account:

Effective BW = (force plot sampling rate)/(Ave. Points)

Phase Offset

Shifts horizontal position of plot to compensate for averaging of endpoint data.

NOTE: The numerical values of the two Phase Offset parameters can be ignored; set them to whatever values minimize the apparent hysteresis. Particularly when Forward Velocity and Reverse Velocity are unequal, the same numerical value for each Phase Offset may not correspond to an identical displacement on each axis.
Display Mode The data types to be plotted on the force graph. E.g. Amplitude vs. Z.

 

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