TMPM5200-2
5-125
ent for sensitivity and phase in the Lock-in-Amplifier
Click on Auto Configure when Model 5110 is used. Click on both Auto Sensitivity
er will adjust the
-in amplifier (from 1 mV to 100 nV
ange in which the
s
8.
T
e SPM
and Auto Phase when Model 7265 is used. The Lock-in-Amplifi
phase and gain automatically.
Increase the input sensitivity of the lock
direction) using the Sensitivity setting key (
ignals from the lock-in amplifier do not saturate.
When using Model 5110 and the signal becomes saturated, the OLVD LED lights
up.
o start scans, click on the Repeat button of the Advanced tab in th
Parameters window.
The following images will be obtained.
Topography
(Topography
image)
Acos
φ
(Elasticity
image)
Asin
φ
(Viscosity
image)
The area in which both Acos
φ
(elasticity image) and Asin
φ
(viscosity image)
become bright is the one in which elasticity and viscosity are large.
9.
S
o
1
u can obtain an optimum
elasticity image as well as an optimum viscosity image.
•
SC Frequency/kHz)
f specimens in elasticity and viscosity is small, for example,
such as a Si cantilever, reduce oscillation level to
too large, the cantilever may break.
cillation level. Gener-
ge, use a
pecify the SPM parameters for usual operation so that you can obtain an
ptimum topography image.
0.
Change the following parameters so that yo
Oscillation frequency (O
If the difference o
same kinds of materials such as composite plastic are mixed, increase oscilla-
tion frequency, and then you will obtain better images.
•
Oscillation level (OSC Level/V)
When using hard cantilevers
observe the image. If oscillation level is
To the contrary, when using soft cantilevers, increase os
ally speaking, when you measure viscoelasticity, to obtain a good ima
hard cantilever.
