- Title
- Ultrasonic energy transmission and conversion using a 2-D MEMS resonator
- Creator
- Zhu, Y.; Moheimani, S. O. R.; Yuce, M. R.
- Relation
- IEEE Electron Device Letters Vol. 31, Issue 4, p. 374-376
- Publisher Link
- http://dx.doi.org/10.1109/led.2010.2040575
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- journal article
- Date
- 2010
- Description
- This letter reports a novel ultrasonic-based method to power biosensors. Compared with commonly used radiofrequency radiation methods, ultrasonic power transmission is relatively safe for the human body and does not cause electronic interference. To extract ambient kinetic energy with arbitrary motion directions, a novel 2-D microelectromechanical systems energy converter is designed with resonance frequencies of 38520 and 38725 Hz. Working in the diagonal direction, the device has a bandwidth of 302 Hz, which is twice wider than that of a comparable 1-D resonator device. A storage capacitor is charged up to 0.95 V in 15 s, when the converter is driven by an ultrasonic transducer at a distance of 0.5 cm, indicating the energy-conversion capability of 21.4 nW.
- Subject
- energy converter; implantable biosensor; microelectromechanical systems (MEMS); ultrasonic transmission
- Identifier
- http://hdl.handle.net/1959.13/927583
- Identifier
- uon:10184
- Identifier
- ISSN:0741-3106
- Rights
- Copyright © 2010 IEEE. Reprinted from IEEE Electron Device Letters Vol. 31, Issue 4, p. 374-376 . This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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