Ultrasonic Motor: Animated Motion, Precision linear stage
Channel: Physik Instrumente USA - Precision Motion Control
Date: 2011-09-30

Ultrasonic Motor Principle,  Piezo-Motor Driven Stage.  Ultasonic motors rely on high frequency beding modes of piezo ceramic actuators.  Nanoscopic motion is generated during each cycle and transferred onto linear or rotary positioning elements. 
More:  http://www.ultrasonic-motor.com/Ultrasonic_Motors_Catalog.pdf


Performance automation https://www.pi-usa.us/en/tech-blog/search-blog-posts-by-category/automation-nano-automation/