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Proceedings Paper • Open Access • new

Test of FBG sensors for monitoring high pressure pipes
Author(s): Antonio Paolozzi; Claudio Paris; Cristian Vendittozzi; Ferdinando Felli; Marialuisa Mongelli; Gerardo De Canio; Alessandro Colucci; Hiroshi Asanuma

Paper Abstract

Fibre Bragg Grating (FBG) sensors are increasingly being used on a wide range of civil, industrial and aerospace structures. The sensors are created inside optical fibres (usually standard telecommunication fibres); the optical fibres technology allows to install the sensors on structures working in harsh environments, since the materials are almost insensitive to corrosion, the monitoring system can be positioned far away from the sensors without sensible signal losses, and there is no risk of electric discharge. FBG sensors can be used to create strain gages, thermometers or accelerometers, depending on the coating on the grating, on the way the grating is fixed to the structure, and on the presence of a specifically designed interface that can act as a transducer. This paper describes a test of several different FBG sensors to monitor an high pressure pipe that feeds the hydraulic actuators of a 6 degrees-of-freedom shaking table at the ENEA Casaccia research centre. A bare FBG sensor and a copper coated FBG sensor have been glued on the pipe. A third sensor has been mounted on a special interface to amplify the vibrations; this last sensor can be placed on the steel pipe by a magnetic mounting system, that also allows the its removal. All the sensor are placed parallel to the axis of the pipe. The analysis of the data recorded when the shaking table is operated will allow to determine which kind of sensor is best suited for structural monitoring of high pressure pipelines.

Paper Details

Date Published: 12 April 2017
PDF: 8 pages
Proc. SPIE 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017, 101681Q (12 April 2017); doi: 10.1117/12.2260474
Show Author Affiliations
Antonio Paolozzi, Sapienza Univ. di Roma (Italy)
Museo Storico della Fisica e Ctr. Studi e Ricerche "Enrico Fermi" (Italy)
Claudio Paris, Museo Storico della Fisica e Ctr. Studi e Ricerche "Enrico Fermi" (Italy)
Sapienza Univ. di Roma (Italy)
Cristian Vendittozzi, Univ. de Brasilia (Brazil)
Ferdinando Felli, Sapienza Univ. di Roma (Italy)
Marialuisa Mongelli, ENEA (Italy)
Gerardo De Canio, ENEA (Italy)
Alessandro Colucci, ENEA (Italy)
Hiroshi Asanuma, Chiba Univ. (Japan)


Published in SPIE Proceedings Vol. 10168:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017
Jerome P. Lynch, Editor(s)

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