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Head, Probe, & Sample Preparation

System Information

100 Dimension 3100 Manual Rev. D

• Load the Sample: Section 7.2.12

• Focus Surface: Section 7.2.13

• Cantilever Tune (TappingMode only): Section 7.2.14

• Set Initial Scan Parameters: Section 7.2.15

• Engage: Section 7.2.16

• Withdraw: Section 7.2.17

• Advanced AFM Operation: Section 7.3

• Stage Parameters: Section 7.3.1

7.1 System Information

7.1.1 Mouse versus Trackball

The mouse exclusively operates the NanoScope software with the exception of functions related to

direct control of the stage. These commands are only initiated with the trackball. Operator-initiated

movement of motors via the Zoom, Focus, Move SPM (Z-stage) and Move XY commands are

controlled by the trackball and its buttons. Motor operation is permitted only when the appropriate

menu enables movement.

7.1.2 Motor Interlock

SPM stage movement is software interlocked against motion if a valid sum (laser signal) is not

present. The sum signal must be between 0.5-9.5 volts, otherwise all commands which try to

initiate stage motion will not move the SPM X, Y, or Z stages. However, except for upward Z-stage

travel. This interlock reduces the possibility of inadvertently crashing the tip and scanner crystal

into the sample or stage, minimizing tip and scanner damage. If during the engage sequence the

sum signal changes to a value outside the interlocked limits, the downward motion stops,

preventing damage to scanners had the Z-stage continued downward.

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Dell 3100 Spezifikationen Seite 120