Multi-degree-of-freedom ultrasonic motors for mass-consumer devices

摘要

New approach to design active kinematic pairs, transforming resonant non-harmonic periodical vibrations into continuous motion is presented. The specifics of a piezoelectric motor utilizing this approach is that it can be made with limited size of arbitrary cross-section. Some examples of this type of piezomotor are presented, allowing creating miniature in-plane positioning systems and angular scanning systems. Examples of multi-degree-of-freedom piezomotors in mass-consumer devices are shown by “smart” toy prototypes made from standard LEGO? construction blocks and mini figures.