Chapter 3. Preparing for Operation
the optical viewing system (Fig. 3-21). Here, the bright portion corresponds to the
edge of the probe chip while dark areas display the chip surface and the sample
surface which are out of focus of the objective.
Fig. 3-21. Chip edge imaged by the light spot
3. Rotate the screw 2 to move the probe along the light spot until the spot comes to the
cantilever (pos. 3 in Fig. 3-20). The monitor will display alternating dark and bright
areas (Fig. 3-22).
Fig. 3-22. Chip edge and the cantilever imaged by the light spot
4. Move the light spot to the free end of the cantilever (pos. 4 in Fig. 3-20) by moving
the probe away from you with the screw 1. Watch the image on the monitor of the
optical viewing system.
Fig. 3-23. Free end of the cantilever imaged by the light spot
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