A standing wave ultrasonic stepping motor using open-loop control system

Xiaoxiao Dong; Minqiang Hu; Long Jin; Zhike Xu; Chunrong Jiang

doi:10.1016/j.ultras.2017.09.014

A standing wave ultrasonic stepping motor using open-loop control system

Ultrasonics. 2018 Jan:82:327-330. doi: 10.1016/j.ultras.2017.09.014. Epub 2017 Sep 22.

Authors

Xiaoxiao Dong¹, Minqiang Hu¹, Long Jin¹, Zhike Xu², Chunrong Jiang³

Affiliations

¹ School of Electrical Engineering, Southeast University, Nanjing, Jiangsu 210096, China.
² School of Electrical Engineering, Southeast University, Nanjing, Jiangsu 210096, China. Electronic address: xuzhike@seu.edu.cn.
³ School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing, Jiangsu 211167, China.

PMID: 28964961
DOI: 10.1016/j.ultras.2017.09.014

Abstract

We propose a standing wave ultrasonic stepping motor with blades and grooves for positioning. The step-by-step movements are achieved by applying the square wave driving voltage and the high-voltage pulse in turn. The prototype with a diameter of 30mm, a height of 10mm is experimentally characterized. The motor is superior to those previously reported due to the positioning mechanism for eliminating displacement cumulative error when using an open-loop control system. Also, the operating mode and the metal-to-metal friction drive ensure a stall torque of 0.055Nm under a relatively low operating voltage of 100V_pp at a resonance frequency of 74kHz.

Keywords: Open-loop; Radial mode; Stepping; Ultrasonic motor.

Publication types

Research Support, Non-U.S. Gov't