New Scale Technologies added a smaller, lower-power module to its SQL-M line of SQUIGGLE micro-actuator modules. Each module incorporates a piezoelectric SQUIGGLE motor - claimed to be the world’s smallest linear motor – with optical limit switches in a compact polymer housing. The new SQL-M-1.8 micro-actuator module measures 13.5 × 4.2 × 4.3 mm and uses approximately 300 mW when moving. It is self-locking and uses zero power to hold its position. This new SQL-M-1.8 module is approximately35% smaller than the company’s original SQL-M-3.4 model. It also has significantly greater power efficiency, higher speed, and longer lifetime (more than 500,000 cycles). According to the company, it is less than half the size of solenoids or stepper motors, draws less power, and offers longer stroke with comparable force. Flex circuits connect the SQL-M module to a miniature drive card, which can be powered by a 3V battery and controlled using TTL signals. Motor driver ASICs, under development with austriamicrosystems, will allow the entire motor drive circuit to fit in a 10 × 10 mm footprint.
New Scale Technologies