Design and characterization of a 2-DOF MEMS ultrasonic energy harvester with triangular electrostatic electrodes

Title: Design and characterization of a 2-DOF MEMS ultrasonic energy harvester with triangular electrostatic electrodes
Creator: Fowler, Anthony G.; Moheimani, S. O. Reza; Behrens, Sam
Relation: ARC
Relation: IEEE Electron Device Letters Vol. 34, Issue 11, p. 1421-1423
Publisher Link: http://dx.doi.org/10.1109/LED.2013.2282815
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Resource Type: journal article
Date: 2013
Description: This letter presents a microelectromechanical systems (MEMS) based energy harvester designed for applications such as the powering of implanted biomedical devices. The harvester is mechanically excited by an external source of ultrasonic waves with triangular electrostatic electrodes being used to produce electrical power from the vibrations of the system's proof mass. Comparisons are made with a previous MEMS harvester that uses conventional comb-finger electrostatic electrodes to demonstrate that the triangular electrodes result in a more effective conversion process. Experimental characterization shows that the device produces an average power output of 27.6 nW, which corresponds to a 29% increase in power output over the conventional comb-finger device.
Subject: electrostatic transducer; energy harvesting; energy scavenging; microelectromechanical systems (MEMS)
Identifier: http://hdl.handle.net/1959.13/1328673
Identifier: uon:25965
Identifier: ISSN:0741-3106
Language: eng
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