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Piezo Ceramic GmbH (Germany) - http://www.piceramic.de
Ultrasonic motor manufacturer. Also piezo ceramic, PZT transducers and actuators. |
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Institute of Piezomechanics - http://www.piezo.lt/index.htm
Ultrasonic actuator and motor research in Kaunas, Lithuania from 1970. Multi degree of freedom motors for robotics. |
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Ultrasonic Motors - http://ndeaa.jpl.nasa.gov/nasa-nde/usm/usm-hp.htm
JPL's NDEAA Group work for space application of piezo devices up to year 2000 including commercially available motors. |
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MicroPropulsion Corp (USA) - http://www.micropropulsion.com/
Ultrasonic motors, piezoelectric transformers, miniature generators. |
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Surface Acoustic Wave Linear Motor - http://www.intellect.pe.u-tokyo.ac.jp/research/sawmotor/sawmotor_e.html
SAW linear motors. Article describing the principle, experiment and conclusions and future reading. |