JEOL JSPM-5200 Instructions Manual page 105

５ MEASUREMENT OPERATION
■ Observ
ing a topographical image
Obse rve the topographical image of a sample; make sure that the image is satisfactory;
then click on the Retract On button to retract the tip.
■ Setting the
lock-in amplifier
Model 72 65
1.
Click on the Lock-In button to open the Lock-In
2.
Check the Connect box to connect the amplifier to the SPM controller. The
system waits about
3.
Specify the parameters according to the following table:
4.
Click on the Retract Off button in the VE-AFM tab window.
5.
Click on Auto Sensitivity in the Lock-In Amplifier window.
The lock-in amplifier
6.
Click on Auto Phase in the Lock-In Amplifier window.
The lock-in amplifier automatically adjusts its phase.
5-42
a second for the
If an error message appears, be sure that the power supply is on, the cables are
connected securely and the Device Setup window is properly set.
Sensitivity
Time Constant
Ref. Phase
Ref. Frequency
Output
Frequency/kHz
Amplitude/V
au matically adjusts its gain. to
Amplifier window.
parameters to be initialized.
1 mV
5 ms
0.000
F
Acos・Asin
20.000
0.200
TMPM5200-2