Aerotech goniometers are offered in direct-drive and worm-gear models. ANT-20G series direct-drive goniometers offer 0.05-arcsec resolution, 0.03-arcsec in-position stability and ±6-arcsec accuracy. Travel is up to 20°. AGC series worm-gear-driven goniometers are used where 90° of angular travel is needed with the payload at the center of rotation, or where two axes of rotation are needed about a common point.

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