Heason Technology has launched a 15 mm diameter miniature precision rotary servo motor from Nanomotion as a direct-drive solution.
The system features the unique operating characteristics of the ceramic motor specialists technology - providing inherent braking and the ability to eliminate servo dither when in a static position even under power-off conditions.
The ER15 rotary piezo motor incorporates four tiny Edge ceramic linear motor elements in a backlash and hysteresis free arrangement that suits space restricted rotary motion applications where position stability is a critical factor.
Aimed at autofocus/zoom modules, shutter/aperture controls, filter changers and pan and tilt modules, the ER-15 produces up to 10 mNm output torque.
At around 22 mm in length the 15 mm diameter motor is smaller than comparably rated conventional precision DC brushed and brushless motors.
The ER 15 is available with the miniature board-based XCD drive and servo control but can be driven with conventional drives if required.
There is provision for an optional rotary encoder mounted at the rear or the motor or servo feedback can be supported by an externally mounted linear or rotary encoder.
