Piezoelectric ultrasonic resonant motor with stator diameter less than 250 micrometers: the proteus motor

Piezoelectric ultrasonic resonant motor with stator diameter less than 250 micrometers: the proteus motor

Watson, B, Friend, J and Yeo, L 2009, 'Piezoelectric ultrasonic resonant motor with stator diameter less than 250 micrometers: the proteus motor', Journal of Micromechanics and Microengineering, vol. 19, no. 2, pp. 1-5.

Document type:	Journal Article
Collection:	Journal Articles

Title	Piezoelectric ultrasonic resonant motor with stator diameter less than 250 micrometers: the proteus motor
Author(s)	Watson, B Friend, J Yeo, L
Year	2009
Journal name	Journal of Micromechanics and Microengineering
Volume number	19
Issue number	2
Start page	1
End page	5
Total pages	5
Publisher	Institute of Physics Publishing Ltd
Abstract	Minimally invasive and in vivo surgery is limited by the ability to provide controllable and powerful motion at scales appropriate for navigation within the human body. A motor for in vivo microbot propulsion is presented with a stator diameter of 250 ?m, demonstrating the potential to directly drive a flagellum for swimming at up to 1295 rpm with a torque of 13 nN m. The motor uses coupled axial-torsional vibration at 652-682 kHz in a helically cut structure excited by a thickness-polarized piezoelectric element. The output power is 4.25 ?W, on the order of what is necessary to navigate small human arteries
Subject	Acoustics and Acoustical Devices; Waves Dynamics, Vibration and Vibration Control Microelectromechanical Systems (MEMS)
Copyright notice	© 2009 IOP Publishing Ltd
ISSN	0960-1317

Citation counts:	Cited 17 times in TR Web of Science Cited 21 times in Scopus Article \| Citations
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Created:	Fri, 13 Apr 2012, 08:14:00 EST by Catalyst Administrator