Registration Head - NT-MDT NTEGRA Therma Instruction Manual

NTEGRA Therma Probe NanoLaboratory. Instruction Manual

1.2. Registration Head

The main parts of the registration head design are presented in Fig. 1-7. The system for
detecting the cantilever deflections and the piezodriver are inside the head.
a) general view b) bottom view
1 – laser adjustment screws; 6 – supports; 7 – piezodriver driving rod
2 – photodiode adjustment screws;
3 – protective overlay; 4 – observation port;
5 – piezodriver
Fig. 1-7. Registration head design
The system for detecting the cantilever deflections consists of a laser, a photodiode,
the system of mirrors, the laser beam and photodiode alignment devices and a preamplifier
board. The system for detecting the cantilever deflections is schematically shown
in Fig. 1-8.
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2
1
2
4
Fig. 1-8. System for detecting cantilever deflections
1 – laser, 2 – mirror, 3 – photodiode, 4 – probe
To protect the head from heat, a fluoroplastic protective cover is installed in the lower part
of the head (Fig. 1-7). There is an observation port in its upper part.
The piezodriver is in the lower part of the head. The driving rod, that transmits oscillations
to the cantilever in the temperature chamber, is fixed to the piezodriver (see Fig. 1-7 b).
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