Analysis of fiber optic sensor application to precursory acoustic signals detection in rockfall events

Autor:	T. van de Watering, Alessandro Pasuto, G.L. Gruca, Andrea Galtarossa, Davide Iannuzzi, L. Palmieri, Luca Schenato, L. Vianello, Gianluca Marcato
Jazyk:	angličtina
Rok vydání:	2012
Předmět:	geography Engineering geography.geographical_feature_category Cantilever business.industry Acoustics Ferrule Fiber optic sensor rock monitoring interferometry Interferometry Transducer Rockfall Acoustic emission Electromagnetic coil business acoustic emission Remote sensing
Zdroj:	22nd International Conference on Optical Fiber Sensors, Beijing, China, 12-19 October 2012 info:cnr-pdr/source/autori:Schenato L., Palmieri L., Vianello L., Marcato G., Gruca G., Van De Watering T., Iannuzzi D., Pasuto A., Galtarossa A./congresso_nome:22nd International Conference on Optical Fiber Sensors/congresso_luogo:Beijing, China/congresso_data:12-19 October 2012/anno:2012/pagina_da:/pagina_a:/intervallo_pagine
Popis:	Two fiber optic sensors (FOSs) for detection of precursory acoustic emissions in rockfall events are proposed and experimentally characterized. While both sensors are interferometric, the first one use a fiber coil as sensing element, whereas the second sensor exploits a micro-machined cantilever carved on the top of a ferrule. Preliminary experimental comparison with standard piezo-electric transducers shows the viability of such FOSs for acoustic emission monitoring in rock masses.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7c4821f3ada32b36bb2cb961d85857d http://hdl.handle.net/11577/2534697 Zobrazit plný text záznamu