Silicon Cochlear Michrophone "Fishbone" with Complex Filtering and Hilbert Transform Capability for Instantaneous Signal Detection and Analysis

We have been studying on the cochlear mechanism as an efficient structure for sensors and actuators [3], [4], [5], The "Fishbone" has a silicon micromachinable shape derived from the electro-mechanical analogy of the Zwislocki's transmission line modelfl], [2], We propose here a novel...

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Bibliographic Details
Main Authors: Ando, S., Koyama, S., Ono, N., Ikeuchi, N.
Format: Conference Proceeding
Language:English
Subjects:
Acoustic sensors
Actuators
biomimetic
biomimicry
Filtering
modulation
Radio frequency
sensor
Sensor phenomena and characterization
Shape
Signal analysis
Signal detection
Silicon
SOI
Transmission line theory
vibration
wireless
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Summary:We have been studying on the cochlear mechanism as an efficient structure for sensors and actuators [3], [4], [5], The "Fishbone" has a silicon micromachinable shape derived from the electro-mechanical analogy of the Zwislocki's transmission line modelfl], [2], We propose here a novel transduction method being suitable for single- chip and wireless acoustic/vibrometric sensor. It has digitally adjustable complex frequency characteristics, radio- frequency (RF) outputs with direct modulation on resonant beams, and Hilbert transform capability to produce real and imaginary signal pair after quadrature-demodulating the RF output. We show theoretical analysis and experimental results using a newly fabricated Fishbone chip.
ISSN:2159-547X
DOI:10.1109/SENSOR.2007.4300375