The precise measurements of angles and the curvature of objects are easily determined using four new Pitch and Roll Stages just introduced by OES ( Optimal Engineering Systems , Inc.). The Pitch axis (lower stage) is a high precision goniometer stage which features preloaded cross roller guides and a 1:296 ratio worm drive for smooth motion over a range of travel of +/- 45 degrees and has a typical accuracy of 0.05 degrees and repeatability of +/- 0.01 degrees.
The roll axis (upper stage) is also a high precision goniometer stage featuring preloaded cross roller guides and a 1:352 gear ratio worm drive for smooth motion over a range of travel of +/- 10 degrees. This stage has a 65 mm x 65 mm table and also has a typical accuracy of 0.05 degrees and repeatability of +/- 0.01 degrees. Additionally, each axis has end-of-travel limit switches.
The PR120-45-10-01 (pictured) and the PR120-45-10-04 which have Optical Encoders for position verification, are both stepper motor driven. The PR120-45-10-02 is driven by Three Phase Servo motors and the PR120-45-10-03 is driven by DC Servo motors; and each have Quardrature Incremental Encoders for the higher speeds, resolution, and repeatability of closed loop servo systems. Each axis features a calibrated scale to visually display the angle of rotation. The maximum speed with stepper motors is 14 degrees/second and 45 degrees/second with servo motors. The resolution of the PR100-45-01 stepper motor driven duel-axis stage depends on the resolution of the stepper motor driver resolution or the optical encoder if a servo motor is used.
A resolution of 0.001 degrees equivalent to 3.6 arc-sec can be achieved using a 10 micro-steps per step stepper motor driver or an encoder with a resolution of 500 cycles per revolution. All PR120-45-10 stages can be ordered plug-and-play with a fully compatible multi-axis motion controller from OES.
