Overview was approached by a Gulf state to build eight large rapid deployment units with three sensors (visible long range, image intensified with a laser illuminator, and long range thermal) with integral cooling for desert operation.
These rapid deployment units had specialised Overview designed Pan and Tilt drives units utilizing printed motor and advanced encoders driving a digital servo. On the Pan unit data and a 40 amp supply was transferred over a unique power slipring.
The solution used an absolute encoder fitted to the final drive and main bearings, which were formed from single wire race units capable of carrying several tons.
The solutions developed for this customer included a very robust local controller for use by forward operators in an emergency.