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Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

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Published on: June 16, 2023

An impulsive source with variable output and stable bandwidth for underwater acoustic experiments.

Andrew R McNeese¹, Preston S Wilson¹, Jason D Sagers¹

¹Applied Research Laboratories, The University of Texas at Austin, P.O. Box 8029, Austin Texas 78713-8029 mcneese@arlut.utexas.edu; pswilson@mail.utexas.edu; sagers@arlut.utexas.edu; knobles@arlut.utexas.edu.

The Journal of the Acoustical Society of America

|July 5, 2014

Summary

A new Combustive Sound Source (CSS) offers an eco-friendly option for ocean acoustics. This innovative device generates broadband acoustic pulses while allowing controlled amplitude adjustments, crucial for marine research and surveys.

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Area of Science:

Oceanography
Acoustics
Environmental Science

Background:

Traditional ocean acoustics research relies on sound sources that may have environmental impacts.
Developing sustainable and adaptable acoustic sources is essential for marine surveys and research.

Purpose of the Study:

To introduce and demonstrate the capabilities of the Combustive Sound Source (CSS) as an environmentally friendly acoustic source.
To show the CSS's ability to maintain signal bandwidth across varying source levels for ocean acoustics applications.

Main Methods:

The Combustive Sound Source (CSS) utilizes a submersible combustion chamber with a fuel/oxidizer mixture.
Ignition of the mixture initiates combustion and bubble activity, generating an impulsive acoustic pulse.
Controlled amplitude adjustments were performed while maintaining signal bandwidth.

Main Results:

The CSS produces a wide bandwidth acoustic signal suitable for ocean acoustics.
The source level of the CSS can be adjusted over a 20 dB range without compromising signal bandwidth.
The combustion and bubble activity effectively generate broadband acoustic pulses.

Conclusions:

The Combustive Sound Source (CSS) is a viable, environmentally friendly tool for ocean acoustics research and surveys.
The CSS offers precise control over pulse amplitude while preserving signal bandwidth, enhancing its utility.
This technology represents a significant advancement in sustainable marine acoustic surveying.