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EvansJ_Thesis.pdf (1.78 MB)
ETD Abstract Container
Abstract Header
Piezoelectric-Based, Self-Sustaining Artificial Cochlea
Author Info
Evans, Jared
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=wright1389196704
Abstract Details
Year and Degree
2013, Master of Science in Engineering (MSEgr), Wright State University, Electrical Engineering.
Abstract
Hearing loss is a prevalent issue, affecting all ages in innumerable occupations. Cochlear implants are one solution to sensorineural hearing complications; and though they are commonly used, the electronic devices have limitations in power consumption and external equipment. Piezoelectric films emulate the relationship between the basilar membrane and inner hair cell structures of the human cochlear epithelium, inducing a potential difference in response to sound pressure. Through proper MEMS fabrication and material selection, an artificial cochlear can be developed utilizing piezoelectrics, which is self-sustainable and functions naturally with the mechanisms of the human ear. This research investigates the feasibility of piezoelectric films in achieving adequate voltage output and frequency selectivity to replace the human cochlea. Piezoelectric samples were manufactured for different resonant frequencies and subjected to air vibrations, after which the resulting voltage was recorded. Through both simulated and experimental data, the necessary 5-10mV to stimulate nerve bundles connected to the hearing centers of the brain was realized. The response spanned the human speech register of 500 to 8000 Hz.
Committee
Yan Zhuang, Ph.D. (Advisor)
Robert Goldenberg, M.D. (Committee Member)
Reiter Chad, Ph.D. (Committee Member)
Pages
67 p.
Subject Headings
Biomedical Engineering
;
Electrical Engineering
;
Materials Science
Keywords
Piezoelectric
;
Artificial Cochlea
;
Frequency Selective
;
PVDF
;
Polymers
;
Basilar Membrane
;
MEMS
;
Biomedical
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Citations
Evans, J. (2013).
Piezoelectric-Based, Self-Sustaining Artificial Cochlea
[Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1389196704
APA Style (7th edition)
Evans, Jared.
Piezoelectric-Based, Self-Sustaining Artificial Cochlea.
2013. Wright State University, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=wright1389196704.
MLA Style (8th edition)
Evans, Jared. "Piezoelectric-Based, Self-Sustaining Artificial Cochlea." Master's thesis, Wright State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1389196704
Chicago Manual of Style (17th edition)
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Document number:
wright1389196704
Download Count:
2,783
Copyright Info
© 2013, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.