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A low-cost technique for simulation and characterization of fi bre Bragg grating sensors in undergraduate instructional laboratories

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Fibre optic sensors are becoming so important in engineering that it is important to introduce this new subject in Electrical Engineering courses. This work describes the construction of a simple, low-cost fi bre Bragg grating (FBG) electronic interrogation system that uses LabVIEW as a tool for simulation, measurement interface and parameter extraction of the FBGs. Although the system is relatively slow (a precise FBG characterization takes 10 minutes to be performed), the students can observe, while performing the assigned tasks, all the signals in the interrogator circuit, resulting in an extremely useful didactic tool. The measurements obtained with the system are in very good agreement
with results measured on expensive Optical Spectrum Analysers when obtaining a full FBG profi le. The system can also be used to measure and characterize FBGs submitted to external strains (e.g.,temperature and force) demonstrating the Bragg shift caused by these strains on FBG sensors.

Keywords electronics interrogation; FBG interrogator; fi bre Bragg grating; fi bre optic sensors

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Informasi Detail

Judul Seri

International Journal of Electrical Engineering Education

No. Panggil

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Penerbit

: Manchester University Press., 2014

Deskripsi Fisik

International Journal of Electrical Engineering Education, Volume 51, Number 1 (January 2014), © Manchester University Press

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

Edukasi

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

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