5
MEASUREMENT OPERATION
5-190
TMPM5200-2
easurement (KFM) tab window
Surface Potential m
surface potential, you need not set it. The measurement pixels are fixed
at 256
×
256. When the measurement starts, the images appear as follows:
•
Source signal
Since the source signal of the Surface Potential measurement tab window is set for
measuring
Topographic
Image
Sur face
Potential
Image
You can confirm the scan mode and source-signal settings at surface potential
m
dow by
movi
Source signal 1:
Topography
Source signal 2:
CPD (Aux3)
er, which enables
KFM measurement.
easurement from the Surface Potential measurement (KFM) tab win
ng directly to the advanced setting tab window.
Scan
mode:
2
Inputs
Measurement
mode:
KFM
•
Source Gain
The same as that in the AC-AFM tab window.
•
Setting button
This button opens the KFM setting dialog that is used for measuring surface poten-
tial.
•
KFM Feedback on
If you check this check box, KFM feedback of the bias voltage starts. When KFM
feedback starts, the CPD signal is output from the AFM amplifi