Piezo LEGS WavePlate0 pages

Piezo LEGS® WavePlate
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Unlimited rotation
Sub-microradian resolution
No power draw in hold position
Quick response
The Piezo LEGS WavePlate is intended primarily for use in
laser applications with standard 0.5 inch (12.7 mm) inserts.
The inserts are locked in place with the provided retaining
rings. For added mounting flexibility, the turnable part has
four M1.6 threaded holes. Fine adjustments are made using the
innovative Piezo LEGS friction drive technology with submicroradian resolution. Manual override of the turnable part
allows for coarse positioning.
The WavePlate is ideally suited for move and hold applications
within optics or other high precision fields. When the rotary
part is in hold position the WavePlate does not consume any
power. The drive technology is direct, meaning no gears are
needed to create motion. This means there is no mechanical
play or backlash in the motion.
Operating modes
The Piezo LEGS can move in full steps (wfm-steps), or partial
steps (microsteps) giving positioning resolution in the submicroradian range. Speed is adjustable from single microsteps
per second up to max specified.
Controlling the motor
PiezoMotor offers a range of drivers and controllers. The most
basic one is a handheld push button driver. Another option is
an analogue driver that regulates the drive speed by means
of an ±7 V analogue interface. One of the more advanced
alternatives is the PMD101 Microstep Driver/Controller.
This product enables the user to vary the waveform as well as
speed. The PMD101 is equipped with encoder signal inputs
for close loop control. The microstepping feature divides full
step cycle into maximum 2048 increments which results in
microsteps as small as 0.5 µrad (0.1 arcsec).
PMD101
Design your own driver
Some customers prefer to design their own driver control for
ease of integration or for even higher waveform resolution. In
this case PiezoMotor can provide information to assist in the
design.
Ordering information
Motor
LW2011A-
WavePlate motor
Drivers and Controllers
PMCM21-01
Handheld push button driver
PMCM31-01
Analogue driver
PMD101
Microstepping driver
Accessories
102431-05
Motor cable 0.5 m
102431-15
Motor cable 1.5 m