Unlike conventional worm- or piezo-driven goniometers, the non-contacting drive mechanics means the stages do not require periodic adjustment or maintenance
Aerotech's latest goniometer stages, for the optics, photonics and medical device industries as well as research and development laboratories, provide significantly larger optical alignment envelopes than previously achievable.
The two new stages, the ANT-20G-110 and ANT-20G-160, handle transverse axis radii of 110 and 160mm respectively.
They offer exceptional resolution, accuracy and repeatability in combination with high speed - even with loads up to 3.5kg.
The unique design of the ANT goniometers uses Aerotech's world-class direct-drive non-contact motor technology.
When used with Aerotech's MXH encoder multiplier, the ANT-20G series provides an industry-leading positioning speed of 150deg per second over 20deg of travel.
High-precision, preloaded, cross roller angular contact bearings and linear encoder feedback are coupled with non-contact direct-drive technology that exhibits zero cogging. These features assure the highest level of performance and deliver the excellent repeatability and in-position stability of the stages.
Indeed, accuracy is +/-10 arc seconds, while repeatability is an outstanding +/-0.5 arc seconds.
Unlike systems that use worm drives, there is no backlash.
The stages are remarkably compact, with the ANT20G-110 measuring just 105x107x45mm and the ANT20G-160 measuring 105x143x49mm.
For multiple axis applications the goniometers can be stacked to provide pitch and roll motion about the same point in space.
ANT series goniometer stages are all supplied optimised for the end user's application and are plug and play to ensure quick and simple installation.
The critical elements of the goniometers, as with all of Aerotech's other ANT series nano-positioners, are designed to operate in a 24/7 manufacturing environment.
Cost of ownership is said to be minimal and, unlike conventional worm- or piezo-driven goniometers, the non-contacting nature of the ANT-20G's drive mechanics means the stages do not require periodic adjustment or maintenance.
