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...
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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 |
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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.
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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 |
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