In-fiber integrated accelerometer

Peng, Feng; Yang, Jun; Li, Xingliang; Yuan, Yonggui; Wu, Bing; Zhou, Ai

doi:10.1364/ol.36.002056

Cited by 51 publications

(16 citation statements)

References 11 publications

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“…As the axial strain,   is the light, 11 P and 12 P are the elastic coefficients of fiber materials,  is the fiber material for mu Poisson ratio,  is a fiber thermal expansion coefficient,  is the thermal coefficient for zeta, and T is the temperature variation [7].…”

Section: Basic Characteristics Of Fiber Bragg Gratingmentioning

confidence: 99%

Design of vibration sensor based on fiber Bragg grating

Zhang

Liu

2017

Photonic Sens

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Fiber grating is a kind of new type of fiber optic light source device which has been rapidly changing in the refractive index of the core in recent years. Especially, it can realize the high precision of the external parameters by means of the special structure design and the encapsulation technology [1,2]. In this paper, a fiber grating vibration sensor which is suitable for vibration monitoring in key areas is designed based on the technical background of vibration monitoring system. The sensor uses a single beam structure and pastes the fiber Bragg grating (FBG) to measure the vibration wavelength on the surface. When the vibration is simply harmonic vibration, the Bragg reflection wavelength will change periodically, and the periodic variation of the wavelength curve can be measured by the fiber grating demodulator, then the correctness of the experimental results is verified. In this paper, through the analysis of the data measured by the demodulator, the MATLAB software is used to verify the data, and the different frequency domains, the modes, and the phase frequency curves are obtained. The measurement range is 0 Hz -100 Hz, and the natural frequency is 90.6 Hz.

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Section: Basic Characteristics Of Fiber Bragg Gratingmentioning

confidence: 99%

Design of vibration sensor based on fiber Bragg grating

Zhang

Liu

2017

Photonic Sens

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“…Commonly used fiber interferometers generally include Michelson interferometer (MSI), Mach-Zehnder interferometer (MZI) and Fabry-Perot interferometer (FPI). Therefore, this paper will review the optical phase modulation type vibration sensor from the fiber MSI vibration sensor [13][14][15][16][17], the optical fiber MZI vibration sensor [18][19] and the optical fiber FPI vibration sensor [20][21][22][23][24][25].…”

Section: Optical Phase Modulation Type Fiber Vibration Sensormentioning

confidence: 99%

“…In 2005, Tianjin University achieved a Michelson interferometric accelerometer based on a simple harmonic oscillator. The phase detection sensitivity was about 1.11×10 -2 rad/(m/s -2 ) [17]. In 2011, GY Chen et al [15] achieved a measurement of the vibration information by fixing the probe arm to a disk of a polymeric carbon material by applying a bending stress to the detection arm by bending stress during disc vibration.…”

Section: Optical Fiber Msi Phase Modulation Type Vibration Sensormentioning

confidence: 99%

“…In recent years, fiber optic sensor technology based on fiber optic sensor with its anti-electromagnetic interference, small size, light weight, wide dynamic range, high precision, can work in harsh environments have been the rapid development of the advantages [2]. In the past few decades, fiber optic vibration sensor has been a lot of research and reports, according to the parameters of light modulation can be divided into four categories: light intensity modulation [3][4][5][6][7][8][9][10][11][12], optical phase modulation [13][14][15][16][17][18][19][20][21][22][23][24][25] And optical wavelength modulation [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] vibration sensor, this paper mainly discusses the status of these three sensors.…”

Section: Introductionmentioning

confidence: 99%

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Research Progress of Fiber Grating Vibration Sensor

Zhang¹,

Liu²,

Li³

et al. 2017

Proceedings of the 2017 5th International Conference on Frontiers of Manufacturing Science and Measuring Technology (FMSMT 2017

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Abstract. With the rapid development of fiber grating sensing technology, vibration sensor based on fiber grating sensing technology has become a new research and development direction. This paper focuses on the latest research progress of vibration sensors based on different structural principles of fiber gratings at home and abroad. The future development of fiber grating vibration sensor is prospected, and the future development of fiber grating vibration sensor is also discussed.

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“…In order to improve the measurement accuracy, and meet the demands for sensor integration and miniaturization, a variety of mixed interferometer structures have been developed [1][2][3][4] , and the performance of interferometers is greatly improved. In addition, due to the use of multi-core fiber [5] and photonic crystal fiber [6] , Michelson interferometers have been able to be integrated into single fibers to fabricate many integrated devices such as sensors [7] , filters [8] and modulations [9] .…”

Section: Introductionmentioning

confidence: 99%

Twin-core fiber-based sensor for measuring the strain and bending simultaneously

et al. 2013

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A novel composite interferometer sensor is presented and its sensing characteristics are investigated. Based on the infiber integrated Michelson interferometer, a quartz tube is used to encapsulate the ends of the twin-core fiber and single mode fiber to form the dual extrinsic FP cavities. Thereby, the Michelson and FP configurations are integrated into a single fiber, which we call it Michelson-FP composite interferometer sensor. The novel sensor can respond to the axial strain and radial bending simultaneously. We have derived and analyzed the interferometer principle of the new structure. The analysis results show that the interferometer sensor could be considered as the superposition of Michelson interferometer and FP interferometer. Moreover, we establish a testing system and conduct a series of experiments to investigate the strain and bending characteristics. We measure the reflection spectra with the spectrum analyzer. The spectral response of the composite interferometer sensor presents two pattern fringes with different frequencies due to the respective optical path interferometers. The experimental results indicate that the composite interferometer sensor is very sensitive to the strain and bending characteristics, and the presented sensor has different strain and bending sensitivity coefficients. Due to these characteristics, the presented sensor might be able to measure the strain and bending characteristics simultaneously. In conclusion, the presented novel interferometer sensor is of compact structure, high integration and good strain and bending sensing characteristics. Thus, many types of fiber-optic sensors may be built based on it.Keywords: twin-core fiber, Michelson interferometer, Fabry-Perot interferometer, Michelson-FP composite interferometer sensor, simultaneous measurement of strain and bending characteristics.

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In-fiber integrated accelerometer

Cited by 51 publications

References 11 publications

Design of vibration sensor based on fiber Bragg grating

Design of vibration sensor based on fiber Bragg grating

Research Progress of Fiber Grating Vibration Sensor

Twin-core fiber-based sensor for measuring the strain and bending simultaneously

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