Fiber optic sensors for precursory acoustic signals detection in rockfall events

Autor:	Schenato L., Palmieri L., Gruca G., Iannuzzi D., Marcato G., Pasuto A., Galtarossa A.
Jazyk:	angličtina
Rok vydání:	2012
Předmět:	fiber optic sensor acoustic emission rock monitoring interferometry Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
Zdroj:	Journal of the European Optical Society-Rapid Publications, Vol 7, p 12048 (2012)
Druh dokumentu:	article
ISSN:	1990-2573 09194436
DOI:	10.2971/jeos.2012.12048
Popis:	Two fiber optic sensors (FOSs) for detection of precursory acoustic emissions in rockfall events are addressed and experimentally characterized. Both sensors are based on interferometric schemes, with the first one consisting of a fiber coil used as sensing element and the second one exploiting a micro-machined cantilever carved on the top of a ferrule. Preliminary comparisons with standard piezo-electric transducers shows the viability of such FOSs for acoustic emission monitoring in rock masses.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/09194436291a4a579824e6b3f22372c9 Zobrazit plný text záznamu View record in DOAJ