کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
737483 | 1461897 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
MEMS piezoelectric artificial basilar membrane with passive frequency selectivity for short pulse width signal modulation
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
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چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 203, 1 December 2013, Pages 6–10
Journal: Sensors and Actuators A: Physical - Volume 203, 1 December 2013, Pages 6–10
نویسندگان
Jongmoon Jang, Sangwon Kim, David J. Sly, Stephen J. O’leary, Hongsoo Choi,