Fiber opticsensors for precursory acoustic signals detection in rockfall events

L. Schenato; L. Palmieri; G.L. Gruca; D. Iannuzzi; G. Marcato; A. Pasuto; A. Galtarossa

doi:10.2971/jeos.2012.12048

Fiber opticsensors for precursory acoustic signals detection in rockfall events

L. Schenato, L. Palmieri, G.L. Gruca, D. Iannuzzi, G. Marcato, A. Pasuto, A. Galtarossa

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Abstract

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.

Original language	English
Journal	Journal of the European Optical Society. Rapid Publications
Volume	7
DOIs	https://doi.org/10.2971/jeos.2012.12048
Publication status	Published - 2012

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title = "Fiber opticsensors for precursory acoustic signals detection in rockfall events",

abstract = "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.",

author = "L. Schenato and L. Palmieri and G.L. Gruca and D. Iannuzzi and G. Marcato and A. Pasuto and A. Galtarossa",

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journal = "Journal of the European Optical Society. Rapid Publications",

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AU - Schenato, L.

AU - Palmieri, L.

AU - Gruca, G.L.

AU - Iannuzzi, D.

AU - Marcato, G.

AU - Pasuto, A.

AU - Galtarossa, A.

PY - 2012

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AB - 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.

U2 - 10.2971/jeos.2012.12048

DO - 10.2971/jeos.2012.12048

M3 - Article

SN - 1990-2573

VL - 7

JO - Journal of the European Optical Society. Rapid Publications

JF - Journal of the European Optical Society. Rapid Publications

ER -

Fiber opticsensors for precursory acoustic signals detection in rockfall events

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