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Bubble detection and sizing with a double frequency Doppler system
Journal article   Peer reviewed

Bubble detection and sizing with a double frequency Doppler system

J.Y. Chapelon, V.L. Newhouse, D. Cathignol and P.M. Shankar
Ultrasonics, v 26(3), pp 148-154
1988
DOI: https://doi.org/10.1016/0041-624X(88)90005-4
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

bubble detection bubble sizing Doppler effects
The detection and sizing of microbubbles have applications in many fields. In this Paper it is shown that resonant moving bubbles introduce Doppler shifts on the sidebands generated at the sum and difference frequency of a pumping frequency field which is swept through the resonance frequency of the bubble, together with a higher frequency imaging field. These so-called double frequency Doppler shifts are equal to the conventional Doppler shifts induced on the imaging frequency, with an amplitude which is maximum when the pumping frequency is equal to the resonance frequency of the bubble. A new device was constructed to detect and size resonant bubbles passing through the ultrasonic beam in a flowing liquid by monitoring these double frequency Doppler shifts. It is shown experimentally that moving bubbles can be accurately sized even when they are surrounded by stationary targets, and that the variation of the displacement velocity does not affect the accuracy of the size estimation.

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13 Record Views
10 citations in Web of Science
15 citations in Scopus

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Acoustics
Radiology, Nuclear Medicine & Medical Imaging
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