5-108
TMPM5200-2
The motor for approaching starts to rotate and automatically stops when the AFM
value becomes the same as the value given in Reference/V.
When approaching has completed, the indicator on
P unit suddenly changes
from the value during approaching (–2.0 V) to the Referenc V value (0 V). This
phenomenon is called Jump-in.
If approaching finishes as the indicator on the AFM AMP unit slowly changes to 0 V,
approaching might not have been correctly performed. In such a case, even though you
try to measure a force curve (described later), you cannot obtain the force curve data, nor
can you o
The
ctrostatic force and interference of laser beams
a
in th
roach On button in the Tip window again.
re the indicator on the AFM AMP unit indicates the
ng having completed
occurred due to unexpected electric
click on
agai
You may hear an oscillation sound coming fro
completing. This is because the setting of the feedback filter is so fast that it oscillates. If
the sound continues, click on the
the AFM AM
e/
btain the force curve image, either.
possible reasons for this are the ele
reflected on the specimen surface. For the former, take remedial measures as explained
bove. For the latter, readjust the photodiode position, click on the Approach Off button
e Tip window; then, click on the App
If approaching stops befo
Reference/V value, it is judged that the seeming state of approachi
al noise or something like that. In this case,
the Approach Off button in the Tip window; then, click on the Approach On button
n.
m the instrument when approaching is
button in the Feedback Filter/Hz selection box and
select a slow filter (a smaller value) from the pull-down menu.
