# Sensorless control of a three-degree-of-freedom ultrasonic vibration tool holder

> Research article (Precision Engineering, 2019) · cited 20× · AI/ML

**Wikidata**: [openalex:W2945115398](https://www.wikidata.org/wiki/openalex:W2945115398)  
**Source**: https://4ort.xyz/entity/sensorless-control-of-a-three-degree-of-freedom-ultrasonic-vibration-tool-holder