On the relation between surface waves on a bubble and the subharmonic combination-frequency emission
On the relation between surface waves on a bubble and the subharmonic combination-frequency emission
The characterisation of bubbles using a two-frequency excitation technique is known to accurately detect and size certain bubble samples. This is done through the generation of a signal at Wi ± Wp/2 when the bubble is insonified by a fixed MHz imaging signal Wi and a variable pumping frequency, Wp , tuned to the bubble's resonance. Recent work has suggested that the principal mechanism for the generation of the Wi ± Wp /2 signal is linked to the onset of surface waves on the bubble's surface This paper strengthens this argument through the comparison of published experimentally measured thresholds for the Wi ±Wp /2 signal with recent theoretical models which predict the driving sound field pressure amplitudes required for the onset of surface waves on a spherical surface.
986-988
Ramble, D.G.
9e0accbe-54f4-445d-a542-cc3c293f47fe
Phelps, A.D.
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Leighton, T.G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
1998
Ramble, D.G.
9e0accbe-54f4-445d-a542-cc3c293f47fe
Phelps, A.D.
3f987d72-7fdd-4282-9a58-9ec5f9effcf2
Leighton, T.G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Ramble, D.G., Phelps, A.D. and Leighton, T.G.
(1998)
On the relation between surface waves on a bubble and the subharmonic combination-frequency emission.
Acta Acustica United with Acustica, 84 (5), .
Abstract
The characterisation of bubbles using a two-frequency excitation technique is known to accurately detect and size certain bubble samples. This is done through the generation of a signal at Wi ± Wp/2 when the bubble is insonified by a fixed MHz imaging signal Wi and a variable pumping frequency, Wp , tuned to the bubble's resonance. Recent work has suggested that the principal mechanism for the generation of the Wi ± Wp /2 signal is linked to the onset of surface waves on the bubble's surface This paper strengthens this argument through the comparison of published experimentally measured thresholds for the Wi ±Wp /2 signal with recent theoretical models which predict the driving sound field pressure amplitudes required for the onset of surface waves on a spherical surface.
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# 1998 Ramble et al (Acustica) surface waves.pdf
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Published date: 1998
Organisations:
Acoustics Group
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Local EPrints ID: 349548
URI: http://eprints.soton.ac.uk/id/eprint/349548
ISSN: 1610-1928
PURE UUID: 78b5e4ab-a6db-4e99-b809-6b8cb4d2fbc6
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Date deposited: 07 Mar 2013 11:28
Last modified: 15 Mar 2024 02:45
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Author:
D.G. Ramble
Author:
A.D. Phelps
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