Solver NEXT SPM. Instruction Manual
42
NOTE. The laser for detecting the cantilever deflection is kept off while the protective
shield is lifted. The laser is activated automatically after the shield is drawn down.
Two modes are provided for adjusting the cantilever deflection detection system:
● Automatic mode (see sect. 6.7.1 on p. 42);
● Manual mode (see sect. 6.7.2 on p. 43).
Below, these modes are explained in details.
6.7.1. Adjusting the Cantilever Deflection Detection System in
Automatic Mode (EXPERTFBA™ System)
Before aiming the laser beam at the cantilever, the measuring threshold (minimum level)
corresponding to detection of the reflected beam should be defined. The aiming procedure
acquires the laser signal taken by the photodiode in the process of automatic search. When
a point is found where the signal exceeds the threshold, the search region is narrowed and
the photodiode is accordingly repositioned. Optimization of the photodiode position can
take several iterations.
To adjust the cantilever deflection detection system in the automatic mode, perform the
following steps:
1. Open the Laser/Diode scan window by clicking the button (see Fig. 6-32).
Fig. 6-32. Window
Laser/Diode scan
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