Design and simulation of a membranes-based acoustic sensors array for cochlear implant applications
Vol. 27 No. 1 (2014), Research Papers
Vol. 27 No. 1 (2014)

Design and simulation of a membranes-based acoustic sensors array for cochlear implant applications

Research Papers
Published 2014-03-15
G. Quiroz
National Polytechnic Institute – Computing Research Center,
H. Báez
National Polytechnic Institute – Computing Research Center,
S. Mendoza
National Polytechnic Institute – Computing Research Center,
M. Alemán
National Polytechnic Institute – Computing Research Center,
L. Villa
National Polytechnic Institute – Computing Research Center,
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Keywords

MEMS
Microphone
Capacitive
Cochlear
Implant
Simulation

How to Cite

Quiroz, G., Báez, H., Mendoza, S., Alemán, M., & Villa, L. (2014). Design and simulation of a membranes-based acoustic sensors array for cochlear implant applications. Superficies Y Vacío, 27(1), 24-29. Retrieved from https://superficiesyvacio.smctsm.org.mx/index.php/SyV/article/view/150
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Abstract

In this work we present the design and simulation of an acoustic sensors array for detecting specific frequencies in a range, and allowing their identification from a complex audio signal in order to develop an application for cochlear implants. The sensitivity is obtained when a membrane resonates when stimulated by an audio signal which behaves as a mechanical wave. The structure of each sensor is designed with the concept of MEMS capacitive microphones, formed by a flexible membrane between two rigid backplates. The variation of the distance between the membrane and backplates generates a capacitance change that can pass to an electronic readout circuit. The structure has been designed as a massspring system where a set of springs, with the same elastic properties, holds the flexible membrane.
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