&lt;title&gt;Development of a three-axis strain and temperature fiber optic grating sensor&lt;/title&gt;

Udd, Eric; Lawrence, Craig M.; Nelson, D. V.

doi:10.1117/12.275740

Cited by 18 publications

(7 citation statements)

References 3 publications

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“…FBGs are an attractive alternative to other sensing technologies because they have advantages that include a small size (typically 125 μm in diameter), high sensitivity (nano-strain scale), large linear measuring range (10 000 micro-strain range), immunity to electromagnetic interference, and low cost, among others. FBG sensors have been used to measure various parameters, such as strain [12], temperature [12], pressure [13], humidity [14] and refractive index [15,16], and are increasingly studied for use in a variety of applications, such as structure health monitoring, vibration measurement, non-destructive testing, and biomedical measurement.…”

Section: Introductionmentioning

confidence: 99%

Modeling and prototyping of a fiber Bragg grating-based dynamic micro-coordinate measuring machine probe

Liu¹,

Chen²,

Wang³

et al. 2016

Meas. Sci. Technol.

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Higher-accuracy measurements of the 3D metrology of nano-and micro-structures are increasingly demanded. This paper details the prototyping of a novel 3D micro-scale coordinate measuring machine probe based on fiber Bragg grating sensors for true 3D measurements at micro-and nanometer scales. A new manufacturing technique for the highprecision cantilever used in the probe is also reported. Simulations are performed during the design and testing to help to test important aspects of the probe and to gain understanding about the influence of the probe geometrical parameters on the sensor sensitivity. The initial performance of the probe has been tested in both the vertical and horizontal directions, and the characterization results are promising. Further experimental results demonstrate that the probe is not affected by surface interaction forces.

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Section: Introductionmentioning

confidence: 99%

Modeling and prototyping of a fiber Bragg grating-based dynamic micro-coordinate measuring machine probe

Liu¹,

Chen²,

Wang³

et al. 2016

Meas. Sci. Technol.

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“…The fiber Bragg grating (FBG) has proved its potential for measuring the strain, temperature, pressure, displacement, refractive index, humidity, etc. [1][2][3][4][5][6][7][8]. FBGs also find applications in the structural health monitoring as well in the medical field [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Implementation of interrogation systems for fiber Bragg grating sensors

P¹,

R²,

Raju³

2013

Photonic Sens

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The development of two simple methods for wavelength-optical intensity modulation techniques for fiber Bragg grating (FBG) sensors is presented. The performance is evaluated by measuring the strain and temperature. The first method consists of a narrow band source, an optical circulator, an FBG, and a power meter. The source and Bragg reflected signal from the FBG need to be matched to get linear results with good power levels. The source spectral power levels are very critical in this study. The power reflected from a matched reference FBG is fed into the measuring FBG in the second method. Since the FBGs are matched, the entire power is reflected back initially. During the measurement, the change in the measurand causes the reflected power from the sensing FBG to vary. A costly high resolution spectrum analyzer is required only during the characterization of the FBG and source. The performances of two interrogators are compared by measuring the strain and temperature. In the second method, the strain measurements can be made insensitive to the temperature variation by selecting a source with a flat spectrum at the measurement range. Highlights of these methods are the portability, cost effectiveness and better resolution.

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“…Fiber Bragg gratings (FBGs) can be regarded as one of the most important inventions of the last decade in optical fiber sensing technology. FBG sensors have been used to measure various parameters such as strain [10], temperature [10], pressure [11], humidity [12] and refractive index [13,14]. They are an attractive alternative to other sensing technologies because they have advantages of small size (typically 125 μm in diameter), mechanical compliance, high sensitivity (nano-strain scale), large linear measuring range (10 000 micro-strain range), immunity to electromagnetic interference and so on.…”

Section: Introductionmentioning

confidence: 99%

A new micro/nano displacement measurement method based on a double-fiber Bragg grating (FBG) sensing structure

Liu

Fei

Xia

et al. 2012

Meas. Sci. Technol.

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The trend toward miniaturization in manufacturing has led to a requirement for micro/nano measuring techniques capable of measuring tiny features on small components. In this paper we propose and demonstrate a novel scheme for micro/nano displacement measurement based on a double-FBG (fiber Bragg grating) sensing structure, a suspended FBG probe stem and a fiber fused micro-ball tip. Such a scheme has some advantages including robustness, sensitivity, small size with large aspect ratio attainable, simplicity and economy. The preliminary experiments showed that the prototype yielded a measurement resolution of 10 nm and a nonlinear error of 150 nm.

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<title>Development of a three-axis strain and temperature fiber optic grating sensor</title>

Cited by 18 publications

References 3 publications

Modeling and prototyping of a fiber Bragg grating-based dynamic micro-coordinate measuring machine probe

Modeling and prototyping of a fiber Bragg grating-based dynamic micro-coordinate measuring machine probe

Implementation of interrogation systems for fiber Bragg grating sensors

A new micro/nano displacement measurement method based on a double-fiber Bragg grating (FBG) sensing structure

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