JEOL JSPM-5200 Instructions Manual page 174

Meas urement result
• To
grab the measured Force Curve, c
•
To change the display style of the Force Curve, change it using the Plot Parameters
item of the Display menu
• If the Force Curve goes out of the linear region and becomes saturated in the
repulsive-force domain, as shown below, it means that the measurement has been
attempted outside the measurable range of the detector and the A/D converter ( ± 10 V
In such a case, change the Tip Displacemen
to a smaller value.
The relationship among Tip Displacement/nm,
shown in the figure below.
The
poi
If t
not been properly performed.
If the data obtained is something like the above, that means that the cantilever tip has
not yet approached the specimen surface.
TMPM5200-2
after grabbing the Force Curve.
Tip Displacement
refore, when the Reference/V value is set to 0 V, feedback is carried out at the
nt where the Force Curve crosses the 0 V axis.
he Force Curve is not obtained correctly, it usu
５ MEASUREMENT OPERATION
lick on the Grab button during the measurement.
t/nm value in the SPS Parameters window
Saturated
Tip Offset/nm an
Reference/V
Tip offset
ally means that approaching has
).
d Reference/V is
5-111