Three new high accuracy yaw-pitch-roll stages have been introduced by OES (Optimal Engineering Systems, Inc.) – the YPR100-10-15-01 (stepper-motor driven, pictured below), the YPR100-10-15-02 (brushless servo-motor driven) and the YPR100-10-15-03 (dc servo motor driven). These stages are suitable for the precise measurement of compound angles or the curvature of an object.

The yaw axis (bottom stage) is capable of rotation of large angles and features a 180:1 ratio gear. The positional accuracy is 0.05˚ and repeatability is +/- 0.01˚.

The pitch axis (middle stage) has cross roller guides and a range of travel of +/- 10˚ and an accuracy of 0.05˚ and repeatability of +/- 0.01˚.

The roll axis (top stage) has cross roller guides and a range of travel of +/- 15˚ and the 65 x 65 mm table has a precise pattern of threaded holes for fixtures or tooling. This stage has an accuracy of 0.05˚ and repeatability of +/- 0.01˚ and the total center deflection for all axes is 0.03 mm. The rotation center height is 50 mm.

The pitch and roll axes are equipped with end of travel limit switches and the yaw axis has a HOME signal for initialization. Additionally all axes have a calibrated indicator to display the angle of rotation. The maximum speed with stepper motors is 14˚ /sec and 90˚/sec with servo motors.

The knobs of stepper motors can be replaced with optional optical encoders for position verification. The YPR100-10-15-02 and YP110-10-03 feature servo motors and optical quadrature encoders for precise closed-loop operation and greater speeds. The YPR100-10-15 stages can be ordered plug-and-play with a fully compatible multi-axis motion controller from OES.

For more information, visit www.oesincorp.com.