Eddy-current non-inertial displacement sensing for underwater infrasound measurements

Dimitri M. Donskoy; Benjamin A. Cray

doi:10.1121/1.3577576

Eddy-current non-inertial displacement sensing for underwater infrasound measurements

Dimitri M. Donskoy, Benjamin A. Cray

Department of Civil, Environmental and Ocean Engineering

Naval Undersea Warfare Center

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

6 Scopus citations

Abstract

A non-inertial sensing approach for an Acoustic Vector Sensor (AVS), which utilizes eddy-current displacement sensors and operates well at Ultra-Low Frequencies (ULF), is described here. In the past, most ULF measurements (from mHertz to approximately 10 Hertz) have been conducted using heavy geophones or seismometers that must be installed on the seafloor; these sensors are not suitable for water column measurements. Currently, there are no readily available compact and affordable underwater AVS that operate within this frequency region. Test results have confirmed the validity of the proposed eddy-current AVS design and have demonstrated high acoustic sensitivity.

Original language	English
Pages (from-to)	EL254-EL259
Journal	Journal of the Acoustical Society of America
Volume	129
Issue number	6
DOIs	https://doi.org/10.1121/1.3577576
State	Published - Jun 2011

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Eddy-current non-inertial displacement sensing for underwater infrasound measurements

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