The acoustic emissions from single-bubble sonoluminescence

Journal of the Acoustical Society of America

Volumn 103, Issue 3, 1998, Pages 1377-1382

  Matula, Thomas J ^a   Hallaj, Ibrahim M ^a   Cleveland, Robin O ^a   Crum, Lawrence A ^a   Moss, William C ^b   Roy, Ronald A ^c  

^a UNIVERSITY OF WASHINGTON   (United States)

^b LAWRENCE LIVERMORE NATIONAL LABORATORY   (United States)

^c BOSTON UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC EMISSIONS; ACOUSTIC TRANSDUCERS; ACOUSTIC VARIABLES MEASUREMENT; CALCULATIONS; CAVITATION; HYDROPHONES; SHOCK WAVES;

BUBBLE WALL MOTION; CAVITATION BUBBLE; INTERNAL SHOCK WAVE METHOD; PULSE AMPLITUDE; SINGLE BUBBLE SONOLUMINESCENCE;

SONOLUMINESCENCE;

ACOUSTICS; ARTICLE; LIGHT SCATTERING; LUMINESCENCE; PRIORITY JOURNAL; SENSOR; SOUND INTENSITY; TRANSDUCER;

EID: 0032030851     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.421279     Document Type: Article

References (33)

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10. For a review, cf. T. G. Leighton, The Acoustic Bubble (Academic, New York, 1994), pp. 302-308.
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13. Measurements of the transient collapse of individual cavitation bubbles have been made previously. See, e.g., S. L. Ceccio and C. E. Brennen, "Observations of the dynamics and acoustics of traveling bubble cavitation," J. Fluid Mech. 233, 633-610 (1991); S. Fujikawa and T. Akamatsu, "Effects of the non-equilibrium condensation of vapour on the pressure wave produced by the collapse of a bubble in a liquid," J. Fluid Mech. 97, 481-512 (1980).
14. Measurements of the transient collapse of individual cavitation bubbles have been made previously. See, e.g., S. L. Ceccio and C. E. Brennen, "Observations of the dynamics and acoustics of traveling bubble cavitation," J. Fluid Mech. 233, 633-610 (1991); S. Fujikawa and T. Akamatsu, "Effects of the non-equilibrium condensation of vapour on the pressure wave produced by the collapse of a bubble in a liquid," J. Fluid Mech. 97, 481-512 (1980).
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16. Recent measurements of the acoustic emission using a fiber-optic hydrophone [Gompf (private communication)] show similar characteristics to our data, but because of the decreased sensitivity, the fiber-optic hydrophone must employ signal averaging.
17. The custom needle hydrophone obtained by Dapco (Dapco Industries, Inc., 241 Ethan Allen Highway, Ridgefield, CT 06883) was calibrated against a B&K 8103 calibrated hydrophone via a substitution calibration in a 4-1 "tank" filled with degased water. A PZT glued to the bottom of the tank was used to set up a standing wave within the tank, at the appropriate frequency. The Dapco sensitivity was found to be -266±1.5 dBV/ μPa.
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19. r≈0.35/BW≈3.5 ns. See, e.g., Malvino, Electronic Principles (McGraw-Hill, New York, 1984), pp. 426-428.
20. Panametrics, Inc. (800) 225-8330. We also observed the acoustic emission from SBSL using 5 and 30 MHz focused transducers.
21. The pulse-echo technique consists of a Panametrics 502U pulser-receiver connected to the transducer. A pulse is sent out at a particular phase of the sound field (triggered with an SRSDG345 delay generator) so that the pulse is incident on the bubble during the growth phase, which gives a larger echo signal. In this configuration the time difference between the pulse and echo was measured to be 33.53±0.05 μs, and corresponds to twice the travel time from the bubble to the transducer. Note that the travel time from a 1-μm bubble would add approximately 13 ns.
22. 3 is the density of water. Thus we obtain M≈1.13. See, e.g., A. D. Pierce, Acoustics: An Introduction to its Physical Principles and Applications (Acoustical Society of America, New York, 1989), 2nd ed., pp. 589-590.
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