Rotary stage uses PILine piezomotor technology

Physik Instrumente (PI) will introduce an ultra-low profile (0.6in), direct-driven, high-speed rotary stage based on the PILine piezomotor drive technology at the SPIE Photonics West conference.

The M-660 stage reaches top speeds of 720deg/s and resolutions of 40urad (eight arcsec).

Its self-locking ceramic drive holds the position steady at rest, with no energy consumption and heat generation.

A directly coupled precision optical encoder provides phase lag-free, backlash-free feedback to the servo controller.

The compact design with minimised mass and inertia provides high-precision bidirectional speed and position control, as well as high-speed motion contouring.

The M-660 is claimed to offer a higher stability, acceleration and settling speed than traditional servo motor direct drives and gear-driven mechanisms.

The motor drive was recently chosen by Leica Geosystems in its latest generation of surveying instruments for geodesy because it can provide high speeds, short positioning times and very high positioning accuracy when moving the measuring optics.

A piezomotor controller is available to be able to use the specific motion characteristics of ultrasonic ceramic motors.

A fast USB interface and a solid software and driver package allow for easy integration into user applications.

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