Scale Technologies' new M3 micro actuator
is smaller, more precise and easier to integrate than traditional
electromagnetic motor systems. Each module is a complete closed-loop motion
control system with 0.5 micron position resolution in a footprint of 12x30 mm
or smaller, and contains a patented Squiggle piezoelectric micro motor that
runs on 3V without voltage boost (compared to 40V for other piezo motors); a
position sensor; drive ASIC and microprocessor for onboard closed-loop PID
control. This combination of features means that no external control board is
necessary. Modules have 3.3V input voltage and low power consumption for long
battery life in handheld devices.
no external controller, electrical integration can be accomplished by sending
high-level ASCII motion commands to the M3 module via a standard serial
interface (I2C or SPI). Breakthroughs in this model include a drive ASIC with control
and performance optimization functions on the chip and a miniature non-contact
position sensor. M3-F focus modules are used in compact cameras for machine
vision and biometric imaging.
integration is customized to the application and possibilities include
integrating a lens within the module or pushing a lever external to the module.
M3-L linear actuators provide linear motion for applications such as tunable RF
filters, photonic tuning devices, optical instrumentation, precision hand-held
devices, aerospace controls and biomedical systems.