JEOL JSPM-5200 Instructions Manual page 126

6.
Enter the cha
Frequency/KHz input box.
If you do not know the characteristic frequency of the cantilever, perform the above
operation, "Cantilever characteristic frequency peak search." If the characteristic
frequency is known, the frequency to be input is given by:
Locked center frequency = Peak frequency – Dynamic range/2
7.
Set O
8.
Click
wind
T he phase is automatically adjusted so that the RMS value displayed in AFM
ALIGNMENT of th
not exceed 2. If it seems likely to exceed it, diminish the Output Amp/V value.
9.
Set the indicator selection knob on the AFM AMP unit to FMD, then set the
AFM ALIGNMENT display to FMD.
1 0.
Adjust the Locked Center Frequency/KHz bar chart so that the FMD value
becomes about —5 (V).
1 1.
Change the locked center frequency to the higher frequency using the
button
If the locked center frequency i
about –5 (V). It does not change any more. If the locked center frequency is appro-
priate, you can set the FMD value between 0 and 10 (V) according to the appropri-
ately locked center frequency.
TMPM5200-2
racteristic frequency of the cantilever in the Locked Center
utput Amp/V to 0.1 V.
on the Phase Scan radio button and on the Scan button in the FM
ow.
e AFM AMP unit becomes the largest. The RMS value should
There may be times when the RMS value exceeds 2 even if the output voltage
is near 0 V. If this occurs, proceed to the next step as it is.
of the Locked Center Frequency/KHz bar chart.
５ MEASUREMENT OPERATION
s not appropriate, the display of FMD value will be
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