The relationship between bubble concentration and the acoustic emission energy of separate frequency bands
File(s)
Accepted version
Author(s)
Sujarittam, Krit
Choi, James J
Type
Journal Article
Abstract
This letter presents the relationship between bubble concentration and the energy ratio of low to high frequency bands of their acoustic emissions. Two sensors, placed perpendicular and concentric to a transmitter, captured the emissions from sonicated microbubbles. Emissions from different bubbles arrived at the perpendicular sensor with small time differences. Low frequencies with periods longer than the time differences interfered constructively, while higher frequencies interfered both constructively and destructively. The low-frequency (2nd–3rd harmonics) to high-frequency (7th–12th harmonics) energy ratio increased with the bubble concentration. The relationship was not observed with the concentric sensor, where the time differences were larger.
Date Issued
2022-02-01
Date Acceptance
2022-01-11
Citation
JASA Express Letters, 2022, 2 (2)
ISSN
2691-1191
Publisher
Acoustical Society of America
Journal / Book Title
JASA Express Letters
Volume
2
Issue
2
Copyright Statement
© 2022 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
License URL
Sponsor
Alzheimer's Research UK (ARUK)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000752543400005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
ARUK-NC2018-IMP
Subjects
Science & Technology
Technology
Life Sciences & Biomedicine
Acoustics
Audiology & Speech-Language Pathology
CONTRAST MICROBUBBLES
ULTRASOUND
FRAGMENTATION
DEPENDENCE
SIGNAL
Publication Status
Published
Article Number
ARTN 022002