Cited 12 time in webofscience Cited 13 time in scopus

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

Title
MEMS piezoelectric artificial basilar membrane with passive frequency selectivity for short pulse width signal modulation
Authors
Jang, J[Jang, Jongmoon]Kim, S[Kim, Sangwon]Sly, DJ[Sly, David J.]Oleary, SJ[Oleary, Stephen J.]Choi, H[Choi, Hongsoo]
DGIST Authors
Jang, J[Jang, Jongmoon]; Kim, S[Kim, Sangwon]; Choi, H[Choi, Hongsoo]
Issue Date
2013-12-01
Citation
Sensors and Actuators, A: Physical, 203, 6-10
Type
Article
Article Type
Article
Keywords
Acoustic Variables MeasurementAcoustic Wave TransmissionArtificial Basilar Membrane (ABM)Basilar MembranesElectrical StimulationsEnergy ConversionFire Alarm SystemsFrequency SelectivityMEMSNatural FrequenciesPiezoelectric Acoustic SensorPiezoelectric Acoustic SensorsPiezoelectric SignalsPiezoelectric VoltagePiezoelectricityResonance FrequenciesSound Pressure Level
ISSN
0924-4247
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. © 2013 Elsevier B.V.
URI
http://hdl.handle.net/20.500.11750/1687
DOI
10.1016/j.sna.2013.08.017
Publisher
Elsevier
Related Researcher
  • Author Choi, Hong Soo Bio-Micro Robotics Lab
  • Research Interests Micro/Nano robot; Neural prostheses; MEMS; BMI; MEMS/NEMS; BioMEMS; MEMS 초음파 트랜스듀스; 인공와우
Files:
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Collection:
Robotics EngineeringETC1. Journal Articles


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