Results 81 to 90 of about 558 (180)

Accuracy assessment of planar near-field acoustical holography applied to non-resonant vibration imaging [PDF]

open access: yes, 2013
A numerical study is presented on the accuracy of Planar Near-field Acoustical Holography (PNAH) for measuring non-resonant Vibration of plate-like structures.
Scholte, Rick   +3 more
core   +2 more sources

Acoustic Holography [PDF]

open access: yes, 2013
This bachelor“s thesis is focused on description and process during contactless identification of sound source for near and far field. Principles of individual methods of acoustic holography are relatively shortly described and for details of this ...
Vacula, Jan
core  

IMPROVING THE NEAR-FIELD ACOUSTICAL HOLOGRAPHY RESULTS BY USING THE REGRESSIVE DISCRETE FOURIER SERIES [PDF]

open access: yes, 2013
International audienceThe planar Near-field Acoustical Holography (NAH) is a non-contact technique that can be used to estimate the vibration pattern of a planar body from the sound pressure it produces on a planar microphone array.
Pasqual, Alexander
core   +2 more sources

Characterization of High-Power Rocket and Jet Noise Using Near-Field Acoustical Holography [PDF]

open access: yes, 2010
Structural fatigue, hearing damage, and community disturbances are all consequences of rocket and jet noise, especially as they become more powerful. Noise-reduction schemes require accurate characterization of the noise sources within rocket plumes and ...
James, Michael M.   +3 more
core   +1 more source

Hydrophone Measurements for Biomedical Ultrasound Applications: A Review. [PDF]

open access: yesIEEE Trans Ultrason Ferroelectr Freq Control, 2023
Harris GR   +7 more
europepmc   +1 more source

A Prototype Therapy System for Boiling Histotripsy in Abdominal Targets Based on a 256-Element Spiral Array. [PDF]

open access: yesIEEE Trans Ultrason Ferroelectr Freq Control, 2021
Bawiec CR   +10 more
europepmc   +1 more source

Numerical techniques for near-field acoustic holography

open access: yes, 2019
Near-field acoustic holography (NAH) has proved to be an enormously successful sound source identification technique, which is widely used in field of acoustics and noise control. The work presented in this thesis aims at developing a novel method for modelling near-field acoustic holography, where the particle velocity on the surface of a vibrating ...
openaire  

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