5
MEASUREMENT OPERATION
TMPM5200-2
5-197
(used other than STM mode)
Adjust PD
Clicking on the Adjust PD button displays the position of the photodiode (PD) position
indicator used in the PD position adjustment when you carry out the axis adjustment of
the cantilever.
Fig. 1
Red circle
Blue square
Red indicator
The
inten
p
photodiode position so that you can obtain a high
enough value.
The
he
photodiode so that this red circle coincides with the square part (target position for the
PD adjustment) displayed in blue. Be careful that the target positions for the PD
adjustment are different from each other between the AC AFM mode and Contact AFM
mode.
Tuning (used only for AC AFM)
This starts the cantilever-position adjustment sequence. The kind of sequence differs
depending on the AFM mode setting (AC/FM) in the operation parameters.
Cantilever (used only for AC AFM)
This displays the Cantilever setting dialog in which you set the oscillation condition for
the c
settin
red indicator on the left side of the Display Window shows the SUM value (the
sity of the incident laser beam onto the photodiode). Adjust the laser beam incident
ion on the cantilever and the
osit
red circle is the position that the laser beam is irradiating. Adjust the position of t
antilever. The content of the displayed dialog differs depending on the AFM mode
g (AC/FM) in the operation parameters.
•
When AFM mode is AC
This opens the Cantilever (AC) dialog in which you set the oscillation signal in the
cantilever.