Bio-Inspired MEMS Direction Finding Underwater Acoustic Sensor

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Authors
Collins, Joshua D.
Subjects
MEMS
direction finding
Ormia Ochracea
acoustic sensor
underwater
Advisors
Karunasiri, Gamani
Alves, Fabio
Date of Issue
2017-09
Date
Sep-17
Publisher
Monterey, California: Naval Postgraduate School
Language
Abstract
This thesis has developed a microelectromechanical directional acoustic sensor based on directional finding capabilities that the Ormia Ochracea fly uses. Previous versions of this sensor have been characterized in the air to exploit resonance modes and resolve bearing ambiguity of an incident sound wave. New sensors have been designed and fabricated for use in the underwater environment. This thesis focuses on the development of these underwater sensors. The research involved design, simulation and experimental characterization of these sensors in both air and water. The sensors show readiness for further development and that they can be vital as a directional finding sound sensor in numerous undersea applications.
Type
Thesis
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Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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