Localized measurement of a sub-nanosecond shockwave pressure rise time

Petelin, Jaka (avtor), Lokar, Žiga (avtor), Horvat, Darja (avtor), Petkovšek, Rok (avtor)

In a growing number of applications fast and localized pressure measurement in aqueous media is desired. To perform such measurements a custom made single-mode fiber optic probe hydrophone (FOPH) was designed and used to measure the pressure pulse generated by laser induced breakdown in water. The sensor enabled sub-nanosecond pressure rise time measurement. Both the rise time and the duration of the shockwave were found to be shorter in the direction perpendicular to the breakdown generating laser beam, compared to the shockwave observed in the parallel direction. Simultaneous high-framerate imaging was used to qualitatively validate the novel hydrophone data and to observe the shockwave evolution. The measurements were performed also on pressure pulses emitted during generation of miniature (150 [micro]m diameter) laser-induced bubbles at very small distances (down to 40 [micro]m), further demonstrating the capabilities of the small-size sensor and the ability to measure locally. The results improve understanding of laser induced breakdown shockwave characteristics dependence on laser pulse energy and duration.

• Jezik: Angleški jezik
• Ključne besede: optical fiber sensors, pressure measurement, measurement by laser beam, electric breakdown, sonar equipment, fiber lasers, optical fibers, fiber optic probe hydrophone, pressure, shockwave
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Datum objave: 24.09.2021
• Leto izida: 2022
• Št. strani: 8 str.
• Številčenje: Vol. 69, no. 1
• PID: 20.500.12556/RUL-138102
• UDK: 535:531.787
• ISSN pri članku: 0885-3010
• DOI: 10.1109/TUFFC.2021.3115629
• COBISS.SI-ID: 78110211
• Datum objave v RUL: 11.07.2022

Gradivo je del revije

• Naslov: IEEE transactions on ultrasonics, ferroelectrics, and frequency control
• Skrajšan naslov: IEEE trans. ultrason. ferroelectr. freq. control
• Založnik: Institute of Electrical and Electronics Engineers
• ISSN: 0885-3010
• COBISS.SI-ID: 2882063

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 24.09.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: optični senzorji, meritve tlaka, laserski žarki, vlakenski laserji, optični laserji