Towards the real-time measurement of Ultrasound Fields by combining Schlieren Tomography and Wavefront Sensing

Recent advances in ultrasound generation such as ultrasonic holography and acoustic tweezers require methods for the fast characterization of pressure fields. Typically, this can be achieved by using a hydrophone, but the measurement of the three-dimensional (3D) pressure distribution in a few cm re...

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Detalhes bibliográficos
Autores: Colom, Mateu, Ricci, Pietro, Duocastella, Martí
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/222059
Acesso em linha:https://hdl.handle.net/2445/222059
Access Level:acceso abierto
Palavra-chave:Ultrasons
Temps real (Informàtica)
Ultrasonics
Real-time data processing
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spelling Towards the real-time measurement of Ultrasound Fields by combining Schlieren Tomography and Wavefront SensingColom, MateuRicci, PietroDuocastella, MartíUltrasonsTemps real (Informàtica)UltrasonicsReal-time data processingRecent advances in ultrasound generation such as ultrasonic holography and acoustic tweezers require methods for the fast characterization of pressure fields. Typically, this can be achieved by using a hydrophone, but the measurement of the three-dimensional (3D) pressure distribution in a few cm region is extremely time-consuming, with typical times ranging from hours to even days. Alternatively, visual methods like Schlieren techniques offer a rapid assessment of the pressure field, but they remain largely qualitative. In this work, we combine Schlieren tomography with wavefront sensing to fill this void and quantitatively reconstruct 3D ultrasonic fields within seconds. Our method is based on the simultaneous acquisition of intensity images with a Schlieren setup and phase maps with a Wavefront Sensor. Because optical phase differences are related to changes in refractive index in the medium and, at the same time, to changes in pressure, we can convert phase values into pressure maps. By feeding this information into the Schlieren sinograms, we obtain quasi-real-time 3D pressure fields with sub-millimetric resolution. This new optical method is a significant step forward toward the real-time and precise characterization of ultrasound2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/222059Articles publicats en revistes (Física Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://dael.euracoustics.org/confs/fa2023/data/articles/000192.pdf2023, vol. 2023cc-by (c) Colom, M. et al., 2023http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2220592026-05-27T06:46:51Z
dc.title.none.fl_str_mv Towards the real-time measurement of Ultrasound Fields by combining Schlieren Tomography and Wavefront Sensing
title Towards the real-time measurement of Ultrasound Fields by combining Schlieren Tomography and Wavefront Sensing
spellingShingle Towards the real-time measurement of Ultrasound Fields by combining Schlieren Tomography and Wavefront Sensing
Colom, Mateu
Ultrasons
Temps real (Informàtica)
Ultrasonics
Real-time data processing
title_short Towards the real-time measurement of Ultrasound Fields by combining Schlieren Tomography and Wavefront Sensing
title_full Towards the real-time measurement of Ultrasound Fields by combining Schlieren Tomography and Wavefront Sensing
title_fullStr Towards the real-time measurement of Ultrasound Fields by combining Schlieren Tomography and Wavefront Sensing
title_full_unstemmed Towards the real-time measurement of Ultrasound Fields by combining Schlieren Tomography and Wavefront Sensing
title_sort Towards the real-time measurement of Ultrasound Fields by combining Schlieren Tomography and Wavefront Sensing
dc.creator.none.fl_str_mv Colom, Mateu
Ricci, Pietro
Duocastella, Martí
author Colom, Mateu
author_facet Colom, Mateu
Ricci, Pietro
Duocastella, Martí
author_role author
author2 Ricci, Pietro
Duocastella, Martí
author2_role author
author
dc.subject.none.fl_str_mv Ultrasons
Temps real (Informàtica)
Ultrasonics
Real-time data processing
topic Ultrasons
Temps real (Informàtica)
Ultrasonics
Real-time data processing
description Recent advances in ultrasound generation such as ultrasonic holography and acoustic tweezers require methods for the fast characterization of pressure fields. Typically, this can be achieved by using a hydrophone, but the measurement of the three-dimensional (3D) pressure distribution in a few cm region is extremely time-consuming, with typical times ranging from hours to even days. Alternatively, visual methods like Schlieren techniques offer a rapid assessment of the pressure field, but they remain largely qualitative. In this work, we combine Schlieren tomography with wavefront sensing to fill this void and quantitatively reconstruct 3D ultrasonic fields within seconds. Our method is based on the simultaneous acquisition of intensity images with a Schlieren setup and phase maps with a Wavefront Sensor. Because optical phase differences are related to changes in refractive index in the medium and, at the same time, to changes in pressure, we can convert phase values into pressure maps. By feeding this information into the Schlieren sinograms, we obtain quasi-real-time 3D pressure fields with sub-millimetric resolution. This new optical method is a significant step forward toward the real-time and precise characterization of ultrasound
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/222059
url https://hdl.handle.net/2445/222059
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://dael.euracoustics.org/confs/fa2023/data/articles/000192.pdf
2023, vol. 2023
dc.rights.none.fl_str_mv cc-by (c) Colom, M. et al., 2023
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Colom, M. et al., 2023
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Articles publicats en revistes (Física Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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