Design and implementation of a shielded underwater vector sensor for laboratory environments

Andrew R. Barnard; Stephen A. Hambric

doi:10.1121/1.3658483

Design and implementation of a shielded underwater vector sensor for laboratory environments

Andrew R. Barnard, Stephen A. Hambric

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

12 Scopus citations

Abstract

Underwater acoustic vector sensors, for measuring acoustic intensity, are typically used in open water where electromagnetic interference (EMI) is generally not a contributor to overall background noise. However, vector sensors are also useful in a laboratory setting where EMI can be a limiting factor at low frequencies. An underwater vector sensor is designed and built with specific care for EMI immunity. The sensor, and associated signal processing, is shown to reduce background noise at EMI frequencies by 10-50 dB and 10-20 dB across the entire frequency bandwidth, as compared to an identical unshielded vector sensor.

Original language	English (US)
Pages (from-to)	EL387-EL391
Journal	Journal of the Acoustical Society of America
Volume	130
Issue number	6
DOIs	https://doi.org/10.1121/1.3658483
State	Published - Dec 2011

All Science Journal Classification (ASJC) codes

Arts and Humanities (miscellaneous)
Acoustics and Ultrasonics

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10.1121/1.3658483

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title = "Design and implementation of a shielded underwater vector sensor for laboratory environments",

abstract = "Underwater acoustic vector sensors, for measuring acoustic intensity, are typically used in open water where electromagnetic interference (EMI) is generally not a contributor to overall background noise. However, vector sensors are also useful in a laboratory setting where EMI can be a limiting factor at low frequencies. An underwater vector sensor is designed and built with specific care for EMI immunity. The sensor, and associated signal processing, is shown to reduce background noise at EMI frequencies by 10-50 dB and 10-20 dB across the entire frequency bandwidth, as compared to an identical unshielded vector sensor.",

author = "Barnard, {Andrew R.} and Hambric, {Stephen A.}",

note = "Funding Information: This work was funded by the Naval Sea Systems Command, Advanced Submarine Systems Development Office (SEA 073R) under the program management of Diane Segelhorst. The authors would like to acknowledge the contribution of Dr. Thomas Gabrielson of the Graduate Program in Acoustics at Penn State. Additional thanks go to Edward “Rusty” Boone, Brian Kline, Wayne Holmberg, and Gregory Seeger of the Applied Research Lab at Penn State for test and instrumentation support. Finally, thanks to James McConnell of Applied Physical Sciences Corporation, Groton, CT, for his guidance and help in calibrating the vector sensors.",

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Design and implementation of a shielded underwater vector sensor for laboratory environments

Abstract

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