The Measurement of Structural Vibration and Impact Response by Fiber Bragg Grating Sensor

碩士 === 元智大學 === 機械工程學系 === 96 === Fiber-optic sensors with small size, light weight, low attenuation and immunity to the electro-magnetic have the advantages over the conventional sensor. In this investigation, the fiber bragg grating is incorporated with the long period fiber grating to measure the...

Full description

Bibliographic Details
Main Authors: Shin-Chieh Chung, 鍾士傑
Other Authors: 何旭川
Format: Others
Language:zh-TW
Published: 2008
Online Access:http://ndltd.ncl.edu.tw/handle/15132865849755435885
id ndltd-TW-096YZU05489065
record_format oai_dc
spelling ndltd-TW-096YZU054890652015-10-13T13:51:27Z http://ndltd.ncl.edu.tw/handle/15132865849755435885 The Measurement of Structural Vibration and Impact Response by Fiber Bragg Grating Sensor 光纖光柵量測結構振動與衝擊響應 Shin-Chieh Chung 鍾士傑 碩士 元智大學 機械工程學系 96 Fiber-optic sensors with small size, light weight, low attenuation and immunity to the electro-magnetic have the advantages over the conventional sensor. In this investigation, the fiber bragg grating is incorporated with the long period fiber grating to measure the strain of structures excited by a shaker and impact hammer. As the light transmits through the long period fiber grating, the intensity of the light is modulated by the wavelength reflected from the FBG. By measuring the intensity of the light, the wavelength reflected from the fiber bragg grating sensor can be determined, thus, leads to the determination of the strain in the structures. In this investigation, the fiber bragg grating sensor is attached to the beam and printed circuit board. The experimental tests presented in this research including three vibration tests (free vibration, forcing vibration, base excitation) and two transient tests (drop test and impact hammer). The structural strain measured by the Fiber Bragg Grating sensor is compared with the strain gauge. Good agreement between the two sensor demonstrates the capability of FBG sensor in measuring the dynamic and transient responses of the structures. 何旭川 2008 學位論文 ; thesis 196 zh-TW
collection NDLTD
language zh-TW
format Others
sources NDLTD
description 碩士 === 元智大學 === 機械工程學系 === 96 === Fiber-optic sensors with small size, light weight, low attenuation and immunity to the electro-magnetic have the advantages over the conventional sensor. In this investigation, the fiber bragg grating is incorporated with the long period fiber grating to measure the strain of structures excited by a shaker and impact hammer. As the light transmits through the long period fiber grating, the intensity of the light is modulated by the wavelength reflected from the FBG. By measuring the intensity of the light, the wavelength reflected from the fiber bragg grating sensor can be determined, thus, leads to the determination of the strain in the structures. In this investigation, the fiber bragg grating sensor is attached to the beam and printed circuit board. The experimental tests presented in this research including three vibration tests (free vibration, forcing vibration, base excitation) and two transient tests (drop test and impact hammer). The structural strain measured by the Fiber Bragg Grating sensor is compared with the strain gauge. Good agreement between the two sensor demonstrates the capability of FBG sensor in measuring the dynamic and transient responses of the structures.
author2 何旭川
author_facet 何旭川
Shin-Chieh Chung
鍾士傑
author Shin-Chieh Chung
鍾士傑
spellingShingle Shin-Chieh Chung
鍾士傑
The Measurement of Structural Vibration and Impact Response by Fiber Bragg Grating Sensor
author_sort Shin-Chieh Chung
title The Measurement of Structural Vibration and Impact Response by Fiber Bragg Grating Sensor
title_short The Measurement of Structural Vibration and Impact Response by Fiber Bragg Grating Sensor
title_full The Measurement of Structural Vibration and Impact Response by Fiber Bragg Grating Sensor
title_fullStr The Measurement of Structural Vibration and Impact Response by Fiber Bragg Grating Sensor
title_full_unstemmed The Measurement of Structural Vibration and Impact Response by Fiber Bragg Grating Sensor
title_sort measurement of structural vibration and impact response by fiber bragg grating sensor
publishDate 2008
url http://ndltd.ncl.edu.tw/handle/15132865849755435885
work_keys_str_mv AT shinchiehchung themeasurementofstructuralvibrationandimpactresponsebyfiberbragggratingsensor
AT zhōngshìjié themeasurementofstructuralvibrationandimpactresponsebyfiberbragggratingsensor
AT shinchiehchung guāngxiānguāngshānliàngcèjiégòuzhèndòngyǔchōngjīxiǎngyīng
AT zhōngshìjié guāngxiānguāngshānliàngcèjiégòuzhèndòngyǔchōngjīxiǎngyīng
AT shinchiehchung measurementofstructuralvibrationandimpactresponsebyfiberbragggratingsensor
AT zhōngshìjié measurementofstructuralvibrationandimpactresponsebyfiberbragggratingsensor
_version_ 1717744238245969920