Parameter estimation techniques for fiber bragg grating sensors

In recent decades, fiber Bragg grating sensors (FBGSs) have been widely implemented for measurements in various dynamic or static fields. The basic properties of the FBGSs are their wavelength-encoded measured information and their inherent self-referencing. When the light delivered from the light s...

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Main Author: Tang, Yu
Other Authors: Chu Yun Chung
Format: Theses and Dissertations
Language:English
Published: 2010
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Online Access:https://hdl.handle.net/10356/41408
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-414082023-07-04T16:52:48Z Parameter estimation techniques for fiber bragg grating sensors Tang, Yu Chu Yun Chung School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics In recent decades, fiber Bragg grating sensors (FBGSs) have been widely implemented for measurements in various dynamic or static fields. The basic properties of the FBGSs are their wavelength-encoded measured information and their inherent self-referencing. When the light delivered from the light source reaches the FBGSs, signal waves that are close to the Bragg wavelength are reflected by the fiber Bragg grating (FBG) and the others waves pass through the FBG. Hence, the value of the Bragg wavelength can be obtained by measuring the reflected waves with an optical spectrum analyzer. Physical properties such as the fiber reflectance index and the Grating pitch will change with strain and temperature, thus causing a shift of the Bragg wavelength. Based on this principle, measuring the shift of the Bragg wavelength provides a means to monitor external strain and temperature variations. However, to produce an accurate result, the ability to detect small measured-induced wavelength shifts is critical. MASTER OF ENGINEERING (EEE) 2010-07-02T06:38:51Z 2010-07-02T06:38:51Z 2008 2008 Thesis Tang, Y. (2008). Parameter estimation techniques for fiber bragg grating sensors. Master’s thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/41408 10.32657/10356/41408 en 112 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Tang, Yu
Parameter estimation techniques for fiber bragg grating sensors
description In recent decades, fiber Bragg grating sensors (FBGSs) have been widely implemented for measurements in various dynamic or static fields. The basic properties of the FBGSs are their wavelength-encoded measured information and their inherent self-referencing. When the light delivered from the light source reaches the FBGSs, signal waves that are close to the Bragg wavelength are reflected by the fiber Bragg grating (FBG) and the others waves pass through the FBG. Hence, the value of the Bragg wavelength can be obtained by measuring the reflected waves with an optical spectrum analyzer. Physical properties such as the fiber reflectance index and the Grating pitch will change with strain and temperature, thus causing a shift of the Bragg wavelength. Based on this principle, measuring the shift of the Bragg wavelength provides a means to monitor external strain and temperature variations. However, to produce an accurate result, the ability to detect small measured-induced wavelength shifts is critical.
author2 Chu Yun Chung
author_facet Chu Yun Chung
Tang, Yu
format Theses and Dissertations
author Tang, Yu
author_sort Tang, Yu
title Parameter estimation techniques for fiber bragg grating sensors
title_short Parameter estimation techniques for fiber bragg grating sensors
title_full Parameter estimation techniques for fiber bragg grating sensors
title_fullStr Parameter estimation techniques for fiber bragg grating sensors
title_full_unstemmed Parameter estimation techniques for fiber bragg grating sensors
title_sort parameter estimation techniques for fiber bragg grating sensors
publishDate 2010
url https://hdl.handle.net/10356/41408
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