21 Sep 2006 PRS-1 represents a new generation in high-precision rotary positioning devices. This unique motorized rotary stage incorporates a proprietary direct-drive motor coupling mechanism with an advanced piezoelectric rotary actuator under DSP control. The PRS-1 represents a new generation in high-precision rotary positioning devices. This unique motorized rotary stage incorporates a proprietary direct-drive motor coupling mechanism with an advanced piezoelectric rotary actuator under digital signal processor (DSP) control. The PRS-1 design addresses one substantial limitation of conventional rotary systems based on electromagnetic motor technology, which rely of translation mechanisms to convert linear movement into rotary movement. With such systems the accuracy is always significantly much worse than the quoted resolution, often leading to a misleading understanding by the user. The PRS-1 differs because the novel direct-drive technology provides unparalleled accuracy. A combination of high torque, variable speed, and high angular resolution with zero backlash enables the PRS-1 to be used in either continuous or stepper mode. Moreover, when the motor is de-energized, the stage auto-locks with undetectable drift. These characteristics allow smooth transition from an angular step < 5 µrad (1 arcsec) to continuous motion. Accuracy 10 µrad (2 arcsec), min. angular increment < 20 µrad (4 arcsec), bi-directional repeatability < 10 µrad (2 arcsec), backlash/hysteresis < 10 µrad, Velocity 5 µrad/sec to 2.1 rad/sec (120 deg/sec), superior tracking bandwidth (2 kHz), 12 Volt DC power supply or optional rechargeable battery pack, completely portable, 20 kg load capacity. Windows®-XP software. |
