UTAF micro motor technology
Ultra-Thin Actuator Family for precision motion in tiny spaces
New Scale’s patented UTAF™ ultra-thin actuator family integrates all ultrasonic motor functions into a single piezoelectric ceramic beam measuring only 4.5 X 0.82 X 0.7 mm. It can produce either linear or rotary motion. This technology is used in New Scale motion modules and is available for licensing in high-volume applications.
- Precise: 0.5 μm resolution
- Fast: > 10 mm/sec (linear) or > 300 deg/sec (rotary)
- Tiny: 0.7 x 0.8 x 4.5 mm
- Quiet and smooth
- Strong: 0.02 N stall force (linear) or high torque depending on diameter (rotary)
- Low power: 2.8 V, less than 150 mW moving, 0 mW to hold position
The UTAF motor uses an innovative co-fired multi-layer ceramic process to create a single beam composed of many thin layers of piezoelectric ceramic material. Sub-segments of the monolithic beam are energized independently, causing the beam to vibrate simultaneously in two orthogonal directions.
The vibrations are used to move an object - such as a lens - placed in direct friction contact with the beam. UTAF motors can be used to produce either linear or rotary motion. Frequency, phase and amplitude of the ultrasonic vibrations are controlled by a two-phase drive circuit. Patented Smart Step control algorithms optimize speed and accuracy.
Because the layers are very thin, they respond to signals of 3 volts or less. This allows the UTAF motor to operate directly from a portable device's battery.
Linear UTAF motion
Rotary UTAF motion
UTAF smart modules
New Scale combines UTAF technology with numerous other innovations to deliver complete “smart” actuator modules. These innovations include advanced drive electronics and motor control algorithms, high-efficiency pin-bushing guides and precision bearings, and innovative position sensor technology.
Rotary applications include a Risley device designed for an endoscopic laser scalpel, and a very compact micro-mirror positioning system. Linear applications include an Ultra-Thin Auto Focus module for phone cameras.
Custom motion system development for OEM products
We help you define, create and integrate our smart motion systems into your OEM products. In addition to UTAF motion systems, we may employ our SQUIGGLE motor technology and expertise in piezoelectric motion system development to solve your OEM problem.
Contact us today to learn more.