Design and simulation of a membranes-based acoustic sensors array for cochlear implant applications
In this work we present the design and simulation of an ac oustic sensors array for detec ting 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 resonate...
| Autores: | , , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2014 |
| País: | México |
| Recursos: | Instituto Politécnico Nacional |
| Repositório: | Redalyc-IPN |
| OAI Identifier: | oai:redalyc.org:94231175006 |
| Acesso em linha: | https://www.redalyc.org/articulo.oa?id=94231175006 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Física, Astronomía y Matemáticas MEMS Implant Cochlear Microphone Capacitive |
| Resumo: | In this work we present the design and simulation of an ac oustic sensors array for detec ting 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 resonate s 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 variat ion 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 mass- spring system where a set of springs, with the same elastic properties, holds the flexible membrane. |
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