The use of a combination frequency technique to measure the surf zone bubble population
The use of a combination frequency technique to measure the surf zone bubble population
There are great benefits to sizing bubbles using a two frequency technique, which examines the appearance of sum-and-difference signals generated by the interaction between a resonant bubble pulsation and a much higher frequency imaging beam. This paper presents the results from using the technique to size bubbles in the ocean surf zone, and details the pulsation model used to calibrate the returned data such that the height of the bubble scattered signal can be related to the number of resonant bubbles of that size. It also shows how ambiguities and inaccuracies (brought on through turbulence and the substantial off-resonance nature of the signal) which affected earlier oceanic tests using the same method can be identified in the returned signal or removed from the estimate during the data processing
1981-1989
Phelps, Andy D.
5bf38d15-9242-4102-843c-d40806bed5fc
Ramble, David G.
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Leighton, Timothy G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
1997
Phelps, Andy D.
5bf38d15-9242-4102-843c-d40806bed5fc
Ramble, David G.
b31d0da3-7641-4c0f-9d59-98d9905d9db3
Leighton, Timothy G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Phelps, Andy D., Ramble, David G. and Leighton, Timothy G.
(1997)
The use of a combination frequency technique to measure the surf zone bubble population.
Journal of the Acoustical Society of America, 101 (4), .
(doi:10.1121/1.418199).
Abstract
There are great benefits to sizing bubbles using a two frequency technique, which examines the appearance of sum-and-difference signals generated by the interaction between a resonant bubble pulsation and a much higher frequency imaging beam. This paper presents the results from using the technique to size bubbles in the ocean surf zone, and details the pulsation model used to calibrate the returned data such that the height of the bubble scattered signal can be related to the number of resonant bubbles of that size. It also shows how ambiguities and inaccuracies (brought on through turbulence and the substantial off-resonance nature of the signal) which affected earlier oceanic tests using the same method can be identified in the returned signal or removed from the estimate during the data processing
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# 1997 Phelps et al (surf zone) JASA.pdf
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Published date: 1997
Organisations:
Acoustics Group
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Local EPrints ID: 349538
URI: http://eprints.soton.ac.uk/id/eprint/349538
ISSN: 0001-4966
PURE UUID: e38423d8-97e7-46ba-855e-90e10d4293d0
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Date deposited: 07 Mar 2013 11:51
Last modified: 15 Mar 2024 02:45
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Author:
Andy D. Phelps
Author:
David G. Ramble
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