Patented piezoelectric micro motor has smallest size, high force and
speed
The SQUIGGLE motor is a revolutionary linear micro motor that sets
new benchmarks for small size and big performance. This patented
ultrasonic motor creates high force and speed with only a few parts.
It replaces complex electromagnetic gearhead motors which have
hundreds of parts.
This simple, robust piezo motor is scalable to much smaller sizes
than electromagnetic motors, without significant loss of power
efficiency. This makes it ideal for portable consumer products such
as mobile phone cameras and
wearable medical devices.
SQUIGGLE Motor Features
- Precise: nanometer resolution
- Fast: variable speed from 1 µm/second to 10 mm/second
- Strong: 5 Newton force
- Tiny: as small as 1.5 x 1.5 x 6 mm
- Quiet and smooth
- Non-magnetic, vacuum and cryogenic options
available
Download SQUIGGLE overview brochure (2.8Mb PDF)
The SQUIGGLE Motor Operating Principle
Piezo actuators change shape when electrically excited. A
SQUIGGLE motor consists of several piezoelectric ceramic actuators
attached to a threaded nut, with a mating threaded screw inside.
Applying power to the actuators creates ultrasonic vibrations,
causing the nut to vibrate in an orbit - similar to a person’s hips
in a “Hula Hoop.” The rotating nut turns the threaded
screw, creating a smooth in-and-out linear motion.
Thread friction drives the shaft, directly converting rotary motion to linear motion. This means:
- No parasitic drag - less wasted power
- Zero backlash (with a light pre-load)
- Very high stiffness
- Nanometer resolution and high force
- High torque at low speeds, with no gearbox
- Smooth velocity at microscopic speeds
- Off-power hold
- Very small diameter
- Manual screw rotation for off-power positioning
The speed and position of the threaded screw can be
precisely controlled. Most importantly, the screw holds its position
when the power is turned off.
The SQUIGGLE motor generates no magnetic fields. It can be made from non-ferrous metals
for use in MRI, scanning electron microscopy and focused ion
microscopy applications. We can also
make custom SQUIGGLE motors for use in vacuum, UHV and cryogenic
environments.
Put Piezo Motors to Work
Learn more about piezoelectric
motors, have a look at the different SQUIGGLE motors that are
available for lab or
OEM use, or ask us about creating a
tiny piezoelectric motor especially for you.
Call us at (585) 924-4450 x 112 or
email us today. |
