Development of an Autonomous Broadband Acoustic Scattering System for Remote Characterization of Zooplankton

2008 ◽  
Author(s):  
Andone C. Lavery ◽  
Eugene A. Terray ◽  
Malinda M. Sutor
Keyword(s):  
Acoustic Scattering ◽  
Scattering System

Development of an Autonomous Broadband Acoustic Scattering System for Remote Characterization of Zooplankton

2009 ◽  
Author(s):  
Andone C. Lavery ◽  
Eugene A. Terray ◽  
Malinda M. Sutor
Keyword(s):  
Acoustic Scattering ◽  
Scattering System

Optical characterization of plasma facing mirrors for a Thomson scattering system of a burning plasma experiment

2001 ◽  
Vol 72 (1) ◽  
pp. 540-544 ◽  
Author(s):  
F. P. Orsitto ◽  
D. Del Bugaro ◽  
M. DiFino ◽  
A. Maiolo ◽  
M. Montecchi ◽  
...  
Keyword(s):  
Optical Characterization ◽  
Thomson Scattering ◽  
Scattering System ◽  
Burning Plasma ◽  
Plasma Experiment

Characterization of a cylindrical rod by inversion of acoustic scattering data

Ultrasonics ◽  
2014 ◽  
Vol 54 (6) ◽  
pp. 1559-1567 ◽  
Author(s):  
Mohammadreza Kari ◽  
Farhang Honarvar
Keyword(s):  
Acoustic Scattering ◽  
Scattering Data

Characterization of trabecular bone structure through acoustic scattering

2007 ◽  
Vol 122 (5) ◽  
pp. 2958
Author(s):  
Max Denis ◽  
Charles Thompson ◽  
Kavitha Chandra
Keyword(s):  
Trabecular Bone ◽  
Bone Structure ◽  
Acoustic Scattering ◽  
Trabecular Bone Structure

In vitro characterization of echogenic liposomes by acoustic scattering at 3.5–15.0 MHz

2004 ◽  
Vol 115 (5) ◽  
pp. 2560-2560
Author(s):  
Tyrone M. Porter ◽  
Christy K. Holland ◽  
Saurabh Datta ◽  
Shaoling Hwang ◽  
Robert C. MacDonald ◽  
...  
Keyword(s):  
Acoustic Scattering ◽  
In Vitro Characterization ◽  
Echogenic Liposomes

scholarly journals Dynamics landscape for acoustic superradiance

2020 ◽  
Vol 378 (2177) ◽  
pp. 20200003 ◽  
Author(s):  
Cisco Gooding
Keyword(s):  
Born Approximation ◽  
Acoustic Scattering ◽  
Microscopic Level ◽  
Rotating Fluid ◽  
Analogue Gravity ◽  
Theoretical Predictions ◽  
Dynamical Features ◽  
Vortex Beams ◽  
Similarities And Differences

We analyse the behaviour of acoustic vortex beams interacting with rotating, fluid-saturated porous materials. Regions of the parameter space that exhibit distinct dynamical features are identified, with a focus on features that are relevant to the characterization of rotational superradiance. We discuss the similarities and differences between two recent proposals to observe acoustic superradiance with rotating, air-saturated sound absorbers. Finally, theoretical predictions for macroscopic acoustic scattering, obtained by averaging over interactions between the fluid and the porous material at the microscopic level, are compared with predictions of the first-Born approximation. This article is part of a discussion meeting issue ‘The next generation of analogue gravity experiments’.

An Evaluation of Acoustic Doppler Velocimeters as Sensors to Obtain the Concentration of Suspended Mass in Water

2012 ◽  
Vol 29 (5) ◽  
pp. 755-761 ◽  
Author(s):  
Clementina R. Russo ◽  
Emmanuel S. Boss
Keyword(s):  
Acoustic Scattering ◽  
Acoustic Properties ◽  
Robust Estimate ◽  
Vicarious Calibration ◽  
Ocean Science ◽  
Laboratory Characterization ◽  
Science Community ◽  
Optical Turbidity ◽  
Acoustic Doppler Current Profilers

Abstract During the last two decades, acoustic Doppler velocimeters (ADVs) and other acoustic sensors have been used by researchers in the ocean science community to acquire information on current velocity and turbulence. More recently, acoustic backscatter systems (ABS) and acoustic Doppler current profilers (ADCPs) have been investigated for their use in determining sediment concentrations and particle sizes. Acoustic systems tend to be less prone to biofouling than optical turbidity sensors, and the high-frequency velocity measurements allow for a direct estimation of turbulence by the flux of particulate materials. This work investigates the responses of two commercially available ADVs to changes in mass concentrations of particles. A careful laboratory characterization of each sensor’s response to concentrations of three different size classes of polymer beads is evaluated and compared with the predicted response from acoustic scattering theory. Within uncertainties, experimental results are shown to agree with theory and these results demonstrate that, if the basic acoustic properties of the scatterers are known or if a local, vicarious calibration is performed, then ADV-type sensors can provide a robust estimate of particle concentrations from the measured acoustic return.

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