# A ball-type multi-DOF ultrasonic motor with three embedded traveling wave stators

> Research article (Sensors and Actuators A Physical, 2020) · cited 28× · AI/ML

**Wikidata**: [openalex:W3035072406](https://www.wikidata.org/wiki/openalex:W3035072406)  
**Source**: https://4ort.xyz/entity/a-ball-type-multi-dof-ultrasonic-motor-with-three-embedded-traveling-wave-stators