MEMS piezoelectric artificial basilar membrane with passive frequency selectivity for short pulse width signal modulation

Jongmoon Jang; Sangwon Kim; David J. Sly; Stephen J. O'Leary; Hongsoo Choi

doi:10.1016/j.sna.2013.08.017

MEMS piezoelectric artificial basilar membrane with passive frequency selectivity for short pulse width signal modulation

Jongmoon Jang
, Sangwon Kim
, David J. Sly
, Stephen J. O'Leary
, Hongsoo Choi

Department of Robotics and Mechatronics Engineering

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

We demonstrated a novel MEMS artificial basilar membrane composed of a piezoelectric beam array that mimics the passive frequency selectivity of the cochlea and exhibits acoustic-to-electrical energy conversion. Each beam was designed to have a unique resonance frequency. To determine the resonance frequencies of the beams, the displacement and piezoelectric voltage were measured by applying a periodic chirped signal with a sound pressure level of 109.7 dB. The measured resonance frequencies were in the range 10-37 kHz. The piezoelectric signal was used to modulate a finite pulse-width signal for electrical stimulation; the pulse widths were in the range 0.43-5.1 ms with sound pressure levels in the range 84.9-112.4 dB.

Original language	English
Pages (from-to)	6-10
Number of pages	5
Journal	Sensors and Actuators, A: Physical
Volume	203
DOIs	https://doi.org/10.1016/j.sna.2013.08.017
State	Published - 2013

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea grant funded by the Korean Government ( 2011-0013638 ).

Keywords

Artificial basilar membrane (ABM)
Frequency selectivity
MEMS
Piezoelectric acoustic sensor

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10.1016/j.sna.2013.08.017

Cite this

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title = "MEMS piezoelectric artificial basilar membrane with passive frequency selectivity for short pulse width signal modulation",

abstract = "We demonstrated a novel MEMS artificial basilar membrane composed of a piezoelectric beam array that mimics the passive frequency selectivity of the cochlea and exhibits acoustic-to-electrical energy conversion. Each beam was designed to have a unique resonance frequency. To determine the resonance frequencies of the beams, the displacement and piezoelectric voltage were measured by applying a periodic chirped signal with a sound pressure level of 109.7 dB. The measured resonance frequencies were in the range 10-37 kHz. The piezoelectric signal was used to modulate a finite pulse-width signal for electrical stimulation; the pulse widths were in the range 0.43-5.1 ms with sound pressure levels in the range 84.9-112.4 dB.",

keywords = "Artificial basilar membrane (ABM), Frequency selectivity, MEMS, Piezoelectric acoustic sensor",

author = "Jongmoon Jang and Sangwon Kim and Sly, \{David J.\} and O'Leary, \{Stephen J.\} and Hongsoo Choi",

note = "Funding Information: This work was supported by a National Research Foundation of Korea grant funded by the Korean Government ( 2011-0013638 ).",

year = "2013",

doi = "10.1016/j.sna.2013.08.017",

language = "English",

volume = "203",

pages = "6--10",

journal = "Sensors and Actuators, A: Physical",

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T1 - MEMS piezoelectric artificial basilar membrane with passive frequency selectivity for short pulse width signal modulation

AU - Jang, Jongmoon

AU - Kim, Sangwon

AU - Sly, David J.

AU - O'Leary, Stephen J.

AU - Choi, Hongsoo

N1 - Funding Information: This work was supported by a National Research Foundation of Korea grant funded by the Korean Government ( 2011-0013638 ).

PY - 2013

Y1 - 2013

N2 - We demonstrated a novel MEMS artificial basilar membrane composed of a piezoelectric beam array that mimics the passive frequency selectivity of the cochlea and exhibits acoustic-to-electrical energy conversion. Each beam was designed to have a unique resonance frequency. To determine the resonance frequencies of the beams, the displacement and piezoelectric voltage were measured by applying a periodic chirped signal with a sound pressure level of 109.7 dB. The measured resonance frequencies were in the range 10-37 kHz. The piezoelectric signal was used to modulate a finite pulse-width signal for electrical stimulation; the pulse widths were in the range 0.43-5.1 ms with sound pressure levels in the range 84.9-112.4 dB.

AB - We demonstrated a novel MEMS artificial basilar membrane composed of a piezoelectric beam array that mimics the passive frequency selectivity of the cochlea and exhibits acoustic-to-electrical energy conversion. Each beam was designed to have a unique resonance frequency. To determine the resonance frequencies of the beams, the displacement and piezoelectric voltage were measured by applying a periodic chirped signal with a sound pressure level of 109.7 dB. The measured resonance frequencies were in the range 10-37 kHz. The piezoelectric signal was used to modulate a finite pulse-width signal for electrical stimulation; the pulse widths were in the range 0.43-5.1 ms with sound pressure levels in the range 84.9-112.4 dB.

KW - Artificial basilar membrane (ABM)

KW - Frequency selectivity

KW - MEMS

KW - Piezoelectric acoustic sensor

UR - https://www.scopus.com/pages/publications/84883882549

U2 - 10.1016/j.sna.2013.08.017

DO - 10.1016/j.sna.2013.08.017

M3 - Article

AN - SCOPUS:84883882549

SN - 0924-4247

VL - 203

SP - 6

EP - 10

JO - Sensors and Actuators, A: Physical

JF - Sensors and Actuators, A: Physical

ER -

MEMS piezoelectric artificial basilar membrane with passive frequency selectivity for short pulse width signal modulation

Abstract

Bibliographical note

Keywords

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