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Laboratory evaluation of the hybrid fiber-optic current sensor

Dziuda, L. and Fusiek, G. and Niewczas, P. and Burt, G.M. and McDonald, J.R. (2007) Laboratory evaluation of the hybrid fiber-optic current sensor. Sensors and Actuators A: Physical, 136 (1). pp. 184-190. ISSN 0924-4247

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Abstract

This paper gives details of the design, construction and laboratory evaluation of the pre-prototype optical current sensor developed specifically to prove the concept of the possibility of monitoring remotely operated electrical plant. The proposed sensor is of a hybrid construction, and uses an optical voltage-to-strain transducer to monitor a specially designed current transformer. In this application, the voltage-to-strain transducer is realized using a novel approach: it employs a fiber Bragg grating (FBG) bonded to a stack of multiple piezoelectric elements, with their respective electrodes connected in parallel. This approach greatly increases the measurement sensitivity; thus, the FBG can be interrogated using a classic scanning filter configuration rather than the interferometric technique. Moreover, since the absolute wavelength information is preserved, this brings the advantage of the simultaneous temperature measurement capability and enables the straightforward multiplexing of several sensors on one optical fiber.

Item type: Article
ID code: 4677
Keywords: fiber Bragg grating sensors, piezoelectric transducers, temperature compensation, electrical submersible pumps, Electrical engineering. Electronics Nuclear engineering, Instrumentation, Surfaces, Coatings and Films, Metals and Alloys, Electronic, Optical and Magnetic Materials, Electrical and Electronic Engineering, Condensed Matter Physics
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Professional Services > Corporate Services Directorate
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 08 Nov 2007
    Last modified: 04 Sep 2014 18:06
    URI: http://strathprints.strath.ac.uk/id/eprint/4677

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