Agilent Technologies E5500 Series Guía de usuario Pagina 188

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MAC III Mode 11
Agilent 5500 SPM User’s Guide 188
Other Tab
The Other tab includes additional parameters that control MAC III
operation:
Figure 124 Advanced AC Mode window: Other tab
Drive Selects the drive mechanism (AAC, standard MAC
or Top MAC).
I Gain The Integral Gain to the MAC III internal servo
loop. The default value is 0.
P Gain The Proportional Gain to the MAC III servo. The
default value is 0.
Setpoint (V) The voltage which the servo will try to maintain.
Input Routes the Amplitude, Phase, X Component or Y
Component from the three lock-in signals to the
MAC III servo input. This is the signal that the servo
will maintain at the selected Setpoint. Selecting
GND, the default setting, provides no signal to the
servo.
Q Control On By applying a phase-shifted version of the
cantilever drive signal on top of the drive signal, Q
control can either increase or decrease the effective
quality factor of the system. Select this box to enable
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