CLOSED LOOP FREQUENCY TUNING OF A VIBRATION-BASED MICRO-GENERATOR
Zhu, Dibin, Roberts, Stephen, Tudor, John and Beeby, Steve (2008) CLOSED LOOP FREQUENCY TUNING OF A VIBRATION-BASED MICRO-GENERATOR. At PowerMEMS 2008+ microEMS2008, Sendai, Japan, 09 - 12 Nov 2008. , 229-232.
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Description/Abstract
This paper presents a tunable electromagnetic vibration-based micro-generator with closed loop frequency tuning. Frequency tuning is realized by applying an axial tensile force to the micro-generator. A closed-loop frequency tuning system has been developed to control the tuning process so that the generator always operates at the ambient vibration frequency to make the entire process automatic. Experimentally the resonant frequency has been successfully tuned from 67.6 to 98 Hz when various axial tensile forces were applied to the structure. The generator produced a power of 61.6 to 156.6 uW over the tuning range when excited at vibrations of 0.588 m/s2.
| Item Type: | Conference or Workshop Item (Poster) |
|---|---|
| Additional Information: | Event Dates: November 9-12, 2008 |
| Divisions: | Faculty of Physical and Applied Science > Electronics and Computer Science > EEE |
| Item ID: | 266932 |
| Date Deposited: | 20 Nov 2008 17:10 |
| Last Modified: | 02 Mar 2012 13:43 |
| Contributors: | Zhu, Dibin (Author) Roberts, Stephen (Author) Tudor, John (Author) Beeby, Steve (Author) |
| Date: | November 2008 |
| Additional Information: | Event Dates: November 9-12, 2008 |
| Status: | Published |
| Contact Email Address: | spb@ecs.soton.ac.uk |
| Further Information: | Google Scholar |
| URI: | http://eprints.soton.ac.uk/id/eprint/266932 |
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