Calibration, Maintenance, Troubleshooting and Warranty
Quick Guide to Piezo Tube Calibration
Rev. B
MultiMode SPM Instruction Manual
309
Do
not
adjust the derating parameters for atomic-scale imaging, including:
•
X fast derate
•
X slow derate
•
Y fast derate
•
Y slow derate
•
Retracted offset der
•
Extended offset der
, you must calibrate the sensitivity parameters with the
Scan angle
set at both
0
degrees and at
90
degrees.
7. Complete the Z-axis calibration using a silicon calibration reference. Refer to
for instructions on calibrating the Z-axis.
15.10
Quick Guide to Piezo Tube Calibration
15.10.1
Linearize Scanner
This calibration is
not
necessary during routine maintenance.
1. Engage in Contact AFM with these settings:
•
Scan size
=
440V
•
Scan rate
=
2.44Hz
•
Scan angle
=
0º
2. Rotate the sample so that it is square with respect to the X-Y scan motion.
3. Adjust Orthogonality to make the scan square.
4. Adjust the
Fast Mag0
to make the first (1/3) and the last (3/3) of the image have the same
spacing of pits. Typical values are ~1.0 - 2.0.
5. Adjust the
Fast Arg
to make the middle (2/3) of the image equal to the first (1/3) and last (3/
3) portions of the image. Typical values are ~3.0 - 4.0.
6. Adjust the
Slow mag0
and
Slow arg
to make the slow axis linear. Follow the same procedure
as with the fast axis.
