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AT 38
Electronic control unit.
The unit intended to control multychannel devices exhibiting capacitive or inductive reactance of the actuators.
The unit is used to control multychannel deformable mirrors and can be used in other devices containing piezoelectric or electromagnet actuators.
Provides independent computer or manual control of several channels or devices in static or dynamic modes.
- High quality and reliability
- High accuracy
- Wide frequency area
- Static and dynamic control
- Independent control on channels
- Simple management and service
- Optimum design
- Flexible program algorithm of control
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Fig. 1, Control unit AT38, front view
Fig. 2, Control unit AT38, rear view
Fig. 3, Control unit AT38, side view
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The control unit based on modular principle and allowing to vary number of channels from 1 up to 32. Number of channels can be expanded by the connecting of several control units. The channel amplifiers can be added on demand of the customer.
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The motherboard with boards of channel amplifiers of AT38 control unit
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The board of channel amplifier
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The control program works under Windows 95/98 and allows to establish a voltage of each channel manually, to write values to a file or read voltage from a file created by other interface program, for example, wavefront sensor.
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The control program interface.
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Pulse output voltage shape under load on capacitance of 200 nF.
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Sawtooth output voltage shape under load on capacitance of 200 nF.
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Sinusoid output voltage shape under load on capacitance of 200 nF.
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Specification
Table 1.
| Range of control voltage, V |
-300...+300 |
| Step of output voltage, V |
1 |
| Accuracy of output voltage, V, no less |
± 0.5 |
| Range of frequencies, Hz |
0...200 under loading CL=300 nF. |
| Number of control channels |
1...32 |
| PC interface |
RS-232, LPT, USB |
| Weight, kg |
see table 2 |
| Dimensions, mm |
see table 2 |
| Power supply |
220 V/50 Hz |
| Power consumption |
50 W |
Table 2
| Enclosure type |
Control channel quantity |
Dimensions, mm |
Appearance |
Weight, kg, no more |
| A |
1-4 |
236x140x320 |
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3 |
| B |
5-8 |
340x148x320 |
Fig. 1 |
6 |
| C |
9-32* |
495x140x320 |
Fig. 2,3 |
8 |
| D |
9 and more |
It is arranged on the basis of 8-channel modules of enclosure B.
Configuration and dimensions are performed according the customer requirement. |
Note:
* For friequecies up to 100 Hz.
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