Analysis of the compensation mechanism of a fiber-optic displacement sensor

Yuan, Libo; Pan, Jianguo; Yang, Tao; Guochen, Han

doi:10.1016/0924-4247(93)80190-r

Cited by 34 publications

(11 citation statements)

References 8 publications

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“…The theoretical estimation of the optical fibre bending sensor under investigation is based on the analysis of a reflective sensor using twin-receiving fibre for displacement application [27].…”

Section: Theoretical Estimationmentioning

confidence: 99%

“…θ c = sin −1 NA). ξ = 0.3034 is the coefficient parameter dependent on the light source type and the NA of the fibre [27]. e − ( i n j r j ) is the additional losses parameters in the i-th receiving fibre caused by microbends.…”

Section: Theoretical Estimationmentioning

confidence: 99%

“…This loss was measured by comparing the light intensity difference between unbent and bent fibres. The bent fibre was coiled for n-times, around a rod with radius, r [27], [28]. Now, we can analyze and derive the response characteristic functions of the fibre outputs, designated as I 1 , I 2 and I 3 .…”

Section: Theoretical Estimationmentioning

confidence: 99%

See 2 more Smart Citations

Optical Fibre Bending Sensor With Automatic Intensity Compensation

Zawawi

O'Keeffe

Lewis

2015

J. Lightwave Technol.

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An extrinsic optical fibre bending sensor based on intensity modulation technique aimed for physiological application is presented. This sensing technique is capable of measuring the bending angle continuously in flexion, extension and lateral movements. The sensor working range is between −22°and 22°with 0.4°accuracy and 0.1°resolution. From the theoretical estimation, the bending sensor automatically compensates for variation in the source intensity and various losses in the input and output fibres. The experimental results obtained in this investigation verified the theoretical finding. Among the advantages of the this optical bending sensor are being noninvasive, suitable for continuous measurement and immune from electromagnetic effects.Index Terms-Bending sensor, health monitoring, intensitymodulation sensor, optical fibre sensor.

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Section: Theoretical Estimationmentioning

confidence: 99%

Section: Theoretical Estimationmentioning

confidence: 99%

See 1 more Smart Citation

Optical Fibre Bending Sensor With Automatic Intensity Compensation

Zawawi

O'Keeffe

Lewis

2015

J. Lightwave Technol.

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“…The first one [3,4] is based on calculation of power P I (x) according to a simple expression (see Fig. 2)…”

Section: Mathematical Modelsmentioning

confidence: 99%

Modified Fiber Optic System for Monitoring the Railgun Rail Deflections

Kleiza

Verkelis

2011

Acta Phys. Pol. A

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The work presents a research into adequacy of two models of an individual fiber optic sensor of a system of identical sensors, which is designed for measuring the railgun rail deflections. The presented models are compared with the data of an experiment. It has been found that a more simple model (in view of the scope of calculation) is more convenient as it concerns the calibration on the grounds of the data of the experiment.

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“…The sensors based on a single multimode fiber-optic pair have been created and investigated in detail [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Frequency and Sensitivity Limited Fiber-Optic Transducers

Kleiza

Verkelis

2008

Acta Phys. Pol. A

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Modelling and experimental investigation of U −h characteristics of fiber-optic reflective displacement transducer, with the aim to obtain the maximal sensitivity and high speed in the displacement and vibration measurements, are presented. Excellent agreement between theory and experiment was obtained, therefore the limiting sensitivity of transducers can be predicted by modelling. Configurations of non-contact fiber optical transducers of the maximal possible sensitivity and speed were found, the metrological parameters which do not depend either on the degradation of the light source intensity or on elements used in the measurements, as well as on the value of the mirror reflection coefficient and changes due to aging. All that increases the reliability of measurement system, which is of utmost importance for process monitoring.

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Analysis of the compensation mechanism of a fiber-optic displacement sensor

Cited by 34 publications

References 8 publications

Optical Fibre Bending Sensor With Automatic Intensity Compensation

Optical Fibre Bending Sensor With Automatic Intensity Compensation

Modified Fiber Optic System for Monitoring the Railgun Rail Deflections

Frequency and Sensitivity Limited Fiber-Optic Transducers

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