This parameter allows you to select the type of data you want to display on the vertical axis. Channels may be assigned to any input signal available including: Deflection, Amplitude, Phase, Friction and so on. Any channel may be switched to Off, however, at least one channel is always on.
This parameter sets the vertical scale in the force plot. Increasing this parameter expands the range of the display about the centerline causing more of the force curve to fall on the graph. Initially, set this parameter to its maximum value, then gradually reduce.
This parameter shifts the displayed force plot in the vertical axis.
NOTE: For Data type = Deflection in Contact AFM mode or Data type = Amplitude in TappingMode AFM, the data is also shifted by the setpointOperator-selected threshold used as the target of the feedback control loop..(i.e., if the Data type = Deflection and Data Center = 0, then the setpoint is at the center of the vertical scale.
TM Deflection Sensitivity relates the vibrational amplitude of the cantilever (in nm) to the amplitude signal (in V) from the controller. To calculate the TM Deflection Sensitivity, measure the slope of the RMS amplitude versus the Z piezo position when the tip is in contact with a very hard, stiff sample. The NanoScope software automatically calculates and enters the value from the graph. You must properly calibrate the TM Deflection Sensitivity before amplitude data can be correctly displayed in nm.
Data Type
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