Dual-axis Pitch and Roll Stage

The precise measurements of angles and the curvature of objects are easily determined using two new Pitch and Roll stages just introduced by OES.

The PR45-60-01 (pictured) is driven by stepper motors and the PR45-60-02 is driven by brushless servo motors with quadrature incremental optical encoders.

The Pitch axis (lower stage) is a high precision goniometer stage which features preloaded cross roller guides and a high ratio worm drive for smooth motion over a range of travel of +/- 45 degrees. It has a typical accuracy of 0.05 degrees and repeatability of +/- 0.01 degrees. Additionally, this axis has end-of-travel limit switches.   

The 60 mm diameter Roll axis (upper stage) has a 180:1 gear ratio for smooth motion and has a precise pattern of threaded holes for fixtures or tooling.  This axis has an accuracy of 0.05 degrees and repeatability of +/- 0.01 degrees. The Roll axis has a Home signal for initialization.

Each axis features a calibrated scale to visually display the angle. The maximum speed with stepper motors is 14 degrees/second and 45 degrees/second with servo motors. 
The knobs of the stepper motors can be replaced with optional optical encoders for position verification.

The resolution of the PR45-60-01 stepper motor driven duel-axis stage depends on the resolution of the step 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 a10 micro-steps per step stepper motor driver or an encoder with a resolution of 500 cycles per revolution.

The PR45-60-02 that features servo motors and optical quadrature encoders are used for very precise closed loop operation and greater speeds.
 
The Dual-axis Pitch and Roll Stages require a Motion Controller that can be ordered as a complete plug-and-play system with joystick, trackball, and keypad.