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Polarization-switching FBG interrogator for distributed point measurement of magnetic field strength and temperature

Orr, Philip and Niewczas, Pawel (2010) Polarization-switching FBG interrogator for distributed point measurement of magnetic field strength and temperature. IEEE Sensors Journal, 11 (5). pp. 1220-1226. ISSN 1530-437X

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Abstract

We report on the design and implementation of a novel optical fiber system for dual point measurement of magnetic field strength and temperature. The system incorporates a polarization switching technique that enables ratiometric processing of the orthogonal circularly polarized reflections from low-birefringence fiber Bragg gratings. High-resolution magneto-optical measurement of either static or dynamic magnetic fields may be achieved while retaining the capability for serial multiplexing and temperature measurement. The system provides a practical solution to intrinsic fiber point measurement of magnetic field, leading to potential applications in adverse environmental conditions, where electronic or extrinsic optical technologies are unsuitable.

Author(s):Orr, Philip and Niewczas, Pawel
Item type:Article
ID code:32817
Keywords:fibre Bragg gratings, sensors, polarisation, magneto-optical effects, optical fibre sensing, Electrical engineering. Electronics Nuclear engineering, Instrumentation, Electrical and Electronic Engineering
Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
Department:Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Pure Administrator
Date deposited:26 Aug 2011 08:32
Last modified:03 Jan 2019 13:00
URI:https://strathprints.strath.ac.uk/id/eprint/32817
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