Nanotechnology Conference and Trade Show - Nanotech 2006
> Program > Technical Conferences > Business & Development > Nano Impact Workshop > Nanotech Job Fair > Expo
Program
Sessions
Sunday
Monday
Tuesday
Wednesday
Thursday
Index of Authors
Index of Keywords
Confirmed Speakers
Conferences & Symposia

Conference Proceedings

Conference Technical Proceedings

A Bio-Inspired Rotor Powered by a Micro-Bubble

J. Kao, J. Warren, J. Xu and D. Attinger
Columbia University, US

Keywords:
rotor, actuator, micro-bubble, acoustic streaming, micro-machine

Abstract:
We present and characterize a novel micro-rotor actuation concept, where acoustic oscillations of a micro-bubble produce a steady fluid flow driving a microfabricated rotor at a rotating speed as high as 600 rpm.
Developing micro-machines can be done in two ways. A first approach it to miniaturize an existing macroscopic solution, as successfully exemplified by the micro-gas turbine of Frechette et al. (ref.1 ). Another approach is to take advantage of the different ratio of forces on the microscale, as exemplified by the bubble-jet printing technology, where the explosive growth of a bubble acts as a piston (ref. 2). This second approach can lead to simpler designs, with fewer issues of geometric tolerances. Our goal is to use this second approach to generate controllable rotary power in a package as thin as a human hair.
Besides proving the feasibility of this novel rotor actuation concept, our study provides basic experimental data for modeling the complex interaction between the fluid flow and the rotor, with the objective to develop rotors with optimized shape. Finally, we outline construction steps to develop this micro-rotor into a micro-motor delivering a controllable and infinitesimal power on the microscale.

Back to Program

Sessions Sunday Monday Tuesday Wednesday Thursday Authors

Nanotech 2006 Conference Program Abstract

 
Nanotechnology Conference | Terms of use | Privacy policy | Contact | NSTI Home
Program | Technical Conferences | Business & Development | Nano Impact Workshop | Nanotech Job Fair | Expo |
Nanotech 2006 Home | Press Room | Venue | Subscribe | Site Map
Names, and logos of other organizations are the property of those organizations and not of NSTI.
This event is not open to the general public and NSTI reserves the right to refuse admission and participation to any individual.