Pointwise fiber Bragg grating displacement sensor system for dynamic measurements

Chuang, Kuo-Chih; Ma, Chien‐Ching

doi:10.1364/ao.47.003561

Cited by 33 publications

(20 citation statements)

References 16 publications

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“…Therefore, it is able to withstand compression and tension translated from the specimen. Since the Bragg wavelength is linearly proportional to the longitudinal strain over the grating, FBG1 shows the pointwise dynamic out-of-plane displacement when the detected point moves along the vertical direction based on the proposed setup method for the FBG, and this sensor system can measure the dynamic displacement within the range of 200 to 5000 nm with a vibration frequency of up to at least 20 kHz [15].…”

Section: Sensing Principle Of Fbgmentioning

confidence: 99%

Review of fiber Bragg grating sensor technology

Chen

Liu

Zeng

2011

Front. Optoelectron. China

168

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The current status of the fiber Bragg grating (FBG) sensor technology was reviewed. Owing to their salient advantages, including immunity to electromagnetic interference, lightweight, compact size, high sensitivity, large operation bandwidth, and ideal multiplexing capability, FBG sensors have attracted considerable interest in the past three decades. Among these sensing physical quantities, temperature and strain are the most widely investigated ones. In this paper, the sensing principle of FBG sensors was briefly introduced first. Then, we reviewed the status of research and applications of FBG sensors. As very important for industrial applications, multiplexing and networking of FBG sensors had been introduced briefly. Moreover, as a key technology, the wavelength interrogation methods were also reviewed carefully. Finally, we analyzed the problems encountered in engineering applications and gave a general review on the development of interrogation methods of FBG sensor.

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Section: Sensing Principle Of Fbgmentioning

confidence: 99%

Review of fiber Bragg grating sensor technology

Chen

Liu

Zeng

2011

Front. Optoelectron. China

168

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“…The gluing and setting process of FBG sensors are the primary determinants of measurement accuracy and reusability. Details regarding the FBG displacement sensor setup method can be found from Chuang and Ma [19].…”

Section: S(x T) = R S Exp -4 In 2 (5)mentioning

confidence: 99%

Investigation of Dynamic Responses for Piezoceramic Plates in Resonance by Using Fiber Bragg Grating

Chuang

Liang

2009

J. mech.

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A fiber Bragg grating (FBG) sensor system which can simultaneously measure the point-wise, out-ofplane and in-plane dynamic displacements is proposed. A demodulation system based on the fiber Bragg grating filter is used. The steady-state responses of particle motions of a piezoceramic plate measured by the FBG out-of-plane and in-plane displacement sensors are simultaneously compared with those obtained by a laser Doppler vibrometer (LDV) and a surface-mounted FBG strain sensor, respectively. The integration of the FBG displacement sensor with a dynamic signal analyzer (FBG-DSA) forms a measurement system which has the ability to acquire the frequency response of a piezoceramic plate. An LDV-DSA system and an impedance analyzer are used to compare the results obtained from the dynamic signal analyzer combined with the out-of-plane FBG sensor (OFBG-DSA) and the in-plane FBG sensor (IFBG-DSA), respectively. The experimental results of the impulse excitation as well as the random excitation of the piezoceramic plate are also presented. To explain the experimental results, an optical full-field measurement technique called amplitude-fluctuation electronic speckle pattern interferometry (AF-ESPI) and FEM numerical calculations are also used to provide full-field vibration mode shapes of the piezoceramic plate. These results indicate that the proposed displacement sensor system has the multiplexing capability to measure the dynamic displacements up to 45kHz.

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“…Therefore, OFSs have been widely used for health monitoring applications in transportation, civil structures, aerospace, marine and smart structures, etc. [3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Fiber Strain Sensor with Enhanced Sensitivity Utilizing Differential Pair of Fiber Bragg Gratings

Zhang

Liu

Pan

et al. 2012

2012 Symposium on Photonics and Optoelectronics

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A sensitivity enhanced demodulation method for the fiber Bragg grating (FBG) sensing system is presented with a pair of reference FBGs. One of the reference FBGs and the sensing FBG have the same Bragg wavelength, but the other reference FBGs has a Bragg wavelength offset relative to the sensing FBG. Reflected optical signals from the sensing FBG passed through two reference FBGs, and subtracted with each other after detection. Proposed scheme is verified using a rail load platform with doubled strain measurement sensitivity compared to the general matched grating approach.

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Pointwise fiber Bragg grating displacement sensor system for dynamic measurements

Cited by 33 publications

References 16 publications

Review of fiber Bragg grating sensor technology

Review of fiber Bragg grating sensor technology

Investigation of Dynamic Responses for Piezoceramic Plates in Resonance by Using Fiber Bragg Grating

Fiber Strain Sensor with Enhanced Sensitivity Utilizing Differential Pair of Fiber Bragg Gratings

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