E-662.LR, E-662.SR LVPZT Piezo Amplifier/Position Servo Controller
Latest Information on E-665 (E-662 Successor) Available Here
E-662E-662 is a bench-top, amplifier/position servo controller with integrated RS-232 computer interface and 12 bit D/A converter for Low Voltage PZTs. The amplifier can output and sink a peak current of 360 mA and an average current of 120 mA. The position servo controller works with either strain gage sensors (E-662.SR) or LVDT sensors (E-662.LR). E-662 can be operated in 6 ways:
- 36 W Peak Power
- Position Servo Control
- For Strain Gages & LVDT Sensors
- RS-232 Computer Interface with 12 bit D/A Converter
I. Open loop (amplifier mode)
Output voltage can be set by a 10-turn, DC offset potentiometer in the range of 0 to 100 V.
- Manual operation
Output voltage is controlled by an analog signal applied to the BNC input ranging from -2 to +12 V. Multiplying by the gain factor of 10, an output voltage range of -20 to +120 V results. The DC offset potentiometer allows for a continuous variation of the input voltage range between -2 V to +12 V and -12 V to +2 V (click here).
- External operation
Output voltage is controlled via the RS-232 computer interface in the range of 0 to 100 V with a resolution of 12 bits. The DC offset potentiometer and BNC analog input are inactive when in computer control mode.
- Computer Control (toggle switch selected)
II. Closed loop (position control mode)
Displacement of the PZTs can be set by a 10-turn, DC offset potentiometer in the range of zero to nominal displacement.
- Manual operation
Displacement of the Piezo is controlled by an analog signal in the range of 0 to +10 V, applied to the BNC input. The controller is calibrated in such a way that 10 V corresponds with maximum nominal displacement and 0 V corresponds with 0 displacement. The DC offset potentiometer can be used to add an offset voltage of 0 to 10 V to the input signal.
- External operation
Displacement of the Piezo is controlled via the RS-232 computer interface in the range of 0 to maximum nominal displacement, with a resolution of 12 bits. The DC offset potentiometer and BNC analog input are inactive when in computer control mode.
- Computer Control (toggle switch selected)
More than 40 SCPI (Standard Commands for Programmable Instruments) ASCII commands are available to program the E-662. An internal function generator provides sine, square, ramp and triangular functions up to 150 Hz. User defined functions can be stored in a table with up to 200 entries. Minimum time between two samples is 1 msec.
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