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Shock wave overpressure history mapping using high-resolution distributed acoustic sensing

Shock wave overpressure history mapping using high-resolution distributed acoustic sensing
Shock wave overpressure history mapping using high-resolution distributed acoustic sensing
This study explored the use of high-resolution distributed acoustic sensing (HR-DAS) for measuring blast wave overpressures, addressing the limitations of conventional pressure transducers. Shock tube experiments were conducted to evaluate HR-DAS performance in capturing side-on blast overpressures, comparing its strain measurements with reference piezoelectric pressure transducers. The study examined the effects of sensing fibre orientation and mounting methods on sensor sensitivity. Results showed that HR-DAS strain histories aligned well with conventional pressure measurements. The findings demonstrate the feasibility of HR-DAS for blast wave sensing, highlighting its potential for further development and broader applications.
Blast wave, DAS, Distributed acoustic Sensor, High-resolution, Shock wave
SPIE - The International Society for Optical Engineering
Masoudi, Ali
8073fb9b-2e6c-46c9-89cf-cb8670d76dc0
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Critchley, Richard
e2b9904e-97ee-4dca-b55e-bddc3b635f9b
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Denny, Jack
7bd3e650-6c4e-4149-b408-2166e377b216
Santos, José Luís
Lopez-Amo Sainz, Manuel
Sun, Tong
Masoudi, Ali
8073fb9b-2e6c-46c9-89cf-cb8670d76dc0
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Critchley, Richard
e2b9904e-97ee-4dca-b55e-bddc3b635f9b
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Denny, Jack
7bd3e650-6c4e-4149-b408-2166e377b216
Santos, José Luís
Lopez-Amo Sainz, Manuel
Sun, Tong

Masoudi, Ali, Lee, Timothy, Beresna, Martynas, Critchley, Richard, Brambilla, Gilberto and Denny, Jack (2025) Shock wave overpressure history mapping using high-resolution distributed acoustic sensing. Santos, José Luís, Lopez-Amo Sainz, Manuel and Sun, Tong (eds.) In 29th International Conference on Optical Fiber Sensors. vol. 13639, SPIE - The International Society for Optical Engineering. 4 pp . (doi:10.1117/12.3063011).

Record type: Conference or Workshop Item (Paper)

Abstract

This study explored the use of high-resolution distributed acoustic sensing (HR-DAS) for measuring blast wave overpressures, addressing the limitations of conventional pressure transducers. Shock tube experiments were conducted to evaluate HR-DAS performance in capturing side-on blast overpressures, comparing its strain measurements with reference piezoelectric pressure transducers. The study examined the effects of sensing fibre orientation and mounting methods on sensor sensitivity. Results showed that HR-DAS strain histories aligned well with conventional pressure measurements. The findings demonstrate the feasibility of HR-DAS for blast wave sensing, highlighting its potential for further development and broader applications.

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e-pub ahead of print date: 22 May 2025
Published date: 22 May 2025
Venue - Dates: 29th International Conference On Optical Fiber Sensors, , Porto, Portugal, 2025-05-25 - 2025-05-30
Keywords: Blast wave, DAS, Distributed acoustic Sensor, High-resolution, Shock wave

Identifiers

Local EPrints ID: 503557
URI: http://eprints.soton.ac.uk/id/eprint/503557
PURE UUID: d8881b0c-dfde-4efe-9a34-4ae629e010a6
ORCID for Ali Masoudi: ORCID iD orcid.org/0000-0003-0001-6080
ORCID for Timothy Lee: ORCID iD orcid.org/0000-0001-9665-5578
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499
ORCID for Jack Denny: ORCID iD orcid.org/0000-0003-3181-4747

Catalogue record

Date deposited: 05 Aug 2025 16:40
Last modified: 01 Oct 2025 02:00

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Contributors

Author: Ali Masoudi ORCID iD
Author: Timothy Lee ORCID iD
Author: Martynas Beresna
Author: Richard Critchley
Author: Gilberto Brambilla ORCID iD
Author: Jack Denny ORCID iD
Editor: José Luís Santos
Editor: Manuel Lopez-Amo Sainz
Editor: Tong Sun

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