TOC-8 Dimension 3100 Manual Rev. C
11.4.21 Cantilever Tune . . . . . . . . . . . . . . . . 11-18
11.4.22 Adjust the Drive amplitude . . . . . . . 11-19
11.4.23 Re-center the Photodiode . . . . . . . . 11-19
11.4.24 Engage. . . . . . . . . . . . . . . . . . . . . . . 11-19
11.4.25 Adjust the Setpoint. . . . . . . . . . . . . . 11-19
11.4.26 Optimize Other Scan Parameters . . 11-20
11.5 Troubleshooting . . . . . . . . . . . . . . . . .11-21
11.5.1 Cantilever Tune Plot Looks Bad . . . . 11-21
11.5.2 Laser Sum Signal Absent or Weak . . . 11-21
11.5.3 Poor Image Quality . . . . . . . . . . . . . . 11-21
11.5.4 Unable to Locate Particulate Samples11-22
Chapter 12 Lateral Force Mode 12-1
12.1 Overview . . . . . . . . . . . . . . . . . . . . . . .12-1
12.2 Basic LFM Operation. . . . . . . . . . . . . .12-2
12.2.1 Select the Microscope Head . . . . . . . . 12-2
12.2.2 Select Mode of Operation . . . . . . . . . . 12-2
12.2.3 Head, Cantilever, and Sample Preparation12-2
12.2.4 Align Laser . . . . . . . . . . . . . . . . . . . . . 12-2
12.2.5 Adjust Photodetector . . . . . . . . . . . . . . 12-3
12.2.6 Locate Tip . . . . . . . . . . . . . . . . . . . . . . 12-3
12.2.7 Focus Surface. . . . . . . . . . . . . . . . . . . . 12-3
12.2.8 Set Initial Scan Parameters . . . . . . . . . 12-4
12.2.9 Engage. . . . . . . . . . . . . . . . . . . . . . . . . 12-7
12.3 Advanced LFM Operation . . . . . . . . . .12-8
12.3.1 Optimal Setup for Frictional Measurements12-8
12.3.2 Identification of Friction . . . . . . . . . . . 12-9
12.3.3 Identification of Forces Other Than Friction12-
12
12.3.4 Example of Frictional Data . . . . . . . . 12-14
Chapter 13 Force Imaging 13-1
13.1 Overview . . . . . . . . . . . . . . . . . . . . . . .13-1
13.2 Force Plots–An Analogy . . . . . . . . . . .13-2
13.3 Force Calibration . . . . . . . . . . . . . . . . .13-5
13.3.1 Example Force Plot . . . . . . . . . . . . . . . 13-6
13.4 Force Calibration Control Panels . . . .13-10
13.4.1 Main Controls (Ramp Controls) . . . . 13-11
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