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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Watson, B. Friend, J. Yeo, L. Sitti, M. |
| Copyright Year | 2009 |
| Description | Author affiliation: NanoRobotics Laboratory, Carnegie Mellon University, Forbes Avenue, Pittsburgh, PA 15213 USA (Sitti, M.) || Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Vic, 3800, Australia (Watson, B.; Friend, J.; Yeo, L.) |
| Abstract | To improve on current methods of minimally invasive surgery, research is being carried out on systems that will permit procedures to be conducted on the micro-scale using remotely operated micro-robots. One of the major stumbling blocks to meeting this need has been the absence of a practical micromotor with a volume of less than 1 $mm^{3}$ with which to drive these devices. To rectify this, we present a piezoelectric ultrasonic resonant micromotor with a volume of approximately 0.75 $mm^{3}.$ The motor uses a novel helically cut stator that matches axial and torsional resonant frequencies, excited by a lead zirconate titanate element 0.03 $mm^{3}$ in volume. An earlier motor using the same stator design, but a larger overall volume, achieved a start-up torque of 47 nNm and no load angular velocity of 830 rad/s. This performance is on the order necessary to propel a swimming microbot in small human veins. |
| Starting Page | 2225 |
| Ending Page | 2230 |
| File Size | 3086073 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424427888 |
| ISSN | 10504729 |
| DOI | 10.1109/ROBOT.2009.5152400 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-05-12 |
| Publisher Place | Japan |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Resonance Micromotors Minimally invasive surgery Stators Resonant frequency Lead Titanium compounds Torque Angular velocity Propulsion |
| Content Type | Text |
| Resource Type | Article |
| Subject | Artificial Intelligence Control and Systems Engineering Electrical and Electronic Engineering Software |
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