Consiglio Nazionale delle Ricerche

Tipo di prodottoAbstract in atti di convegno
TitoloFiber Optic Pressure Sensor for Underground Water Level Monitoring
Anno di pubblicazione2019
Autore/iLuca Palmieri, Luca Schenato, Alessandro Pasuto, Andrea Galtarossa
Affiliazioni autoriLuca Palmieri1 , Luca Schenato2 , Alessandro Pasuto2 , and Andrea Galtarossa1, 3 1 Department of Information Engineering, University of Padova, Padova, Italy 2 National Research Council, Research Institute for Hydrogeogical Protection, Paodva, Italy 3 IIUSE, Southeast University, Nanjing, China
Autori CNR e affiliazioni
  • inglese
AbstractPressure sensors find many uses in fields ranging from industry to environmental monitoring. In particular, they can play a key role in the monitoring of dikes and embankments, where measurement of the underground water level is a good indicator of the structure stability. This specific application, however, requires high sensitivity and a relatively high longitudinal density of sensing points along the dike. While a distributed pressure sensor would be most befitted for this last requirement, high sensitivity distributed pressure sensors are not yet available nowadays, therefore the viable solution is a dense concatenation of point sensors. Different fiber- based approaches to point measurement of pressure have been presented in the literature. The simplest one is based on transducing pressure into optical losses, but usually this yields low sensitivity. Very high sensitivity can be achieved with interferometric pressure sensors, such as those based on Fabry-Perot cavities; yet both this and the previous approach are difficult to multiplex. From this point of view, fiber Bragg grating (FBG) offer the most effective way to implement a quasi-distributed sensing system; nevertheless, pressure sensitivity of bare FBG is as low as -3 pm/MPa.
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Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
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Parole chiavePressure, Optical fiber sensor, FBG
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Titolo convegno/congressoPIERS PhotonIcs & Electromagnetics Research Symposium - PIER 2019
Luogo convegno/congressoRome
Data/e convegno/congresso17 - 20/06/2019
RelazioneSu invito
Titolo parallelo-
Note/Altre informazioni-
Strutture CNR
  • IRPI — Istituto di ricerca per la protezione idrogeologica
Moduli/Attività/Sottoprogetti CNR
  • DTA.AD003.215.001 : DOMINO - Dikes and debris Flows Monitoring by novel Optical fiber Sensors ERANET
Progetti Europei-
Fiber Optic Pressure Sensor for Underground Water Level Monitoring (documento privato )
Tipo documento: application/pdf