5
MEASUREMENT OPERATION
TMPM5200-2
5-193
Later
surement tab windows
al-Modulation FFM
mea
•
Source signal
Since the source signal of the Lateral-Modulation FFM measurement tab window is
set for measuring lateral-modulation FFM, you need not set it. The measurement
pixels are fixed at 256
×
256. When measurement starts, the images appear as
follows:
Topog
(Topo Image)
(Friction
Image)
You can confirm the scan mode and source-signal settings at lateral-modulation
FFM measurement from the Lateral-Modulation FFM measurement tab win-
dow by moving directly to the advanced setting tab window.
Scan
mode:
Measurement
mode:
VE-AFM
Source signal 1:
Topography
Source signal 2:
raphy
Acos
φ
Asin
φ
4
Inputs
LIA1 (Aux1)
signal 3:
LIA2 (Aux2)
ously.
•
Lo
Source
Source signal 4:
Topography
Although the scan mode is 4 Inputs during lateral-modulation FFM measure-
ment, source signal 4 is ignored, and the system actually acquires 3 images si-
multane
•
Source Gain
The same as that in the AC-AFM tab window.
ck-in amplifier setting button
This button opens the Lock-in Amplifier Control window, which sets the extended
lock-in amplifier that is necessary for measuring lateral-modulation FFM. Details
on setting the lock-in amplifier will be provided later.