Piezoelectroluminescent fiber-optic sensors for temperature and deformation fields

Pan’kov, A. A.

doi:10.1016/j.sna.2019.01.030

Cited by 9 publications

(4 citation statements)

References 13 publications

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“…Equation (1) gives the relationship between the three-beam interference spectrum, the PDMS thickness L 2 and the cavity length L 1 . The actual fiber FPI cavity length L 1 is determined.…”

Section: Structure and Principle Of Sensormentioning

confidence: 99%

“…Pressure sensors have many applications in industrial production, medical testing, transportation, etc. Fiber optic structural pressure sensors have attracted people's attention because of their low cost, high sensitivity, fast response time and good stability [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Polydimethylsiloxane (PDMS) is a hydrophobic silicone material which can be used to prepare films of good quality.…”

Section: Introductionmentioning

confidence: 99%

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An Optimized PDMS Thin Film Immersed Fabry-Perot Fiber Optic Pressure Sensor for Sensitivity Enhancement

Luo

Liu

et al. 2019

Coatings

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To effectively control the critical thickness of a polydimethylsiloxane (PDMS) film and enhance the sensitivity characteristics of the fiber pressure sensor, we propose a new method to optimize the thickness of the PDMS film in a fiber tube. It is characterized by analyzing the relationship between the diffusion rate of the PDMS and its viscosity, and using an oven to solidify the PDMS to a certain extent to accurately control the diffusion rate and diffusion length of the PDMS in the fiber tube. We also used multiple transfer methods to control the volume of the PDMS in the fiber tube to minimize the thickness of the formed PDMS film. Fabry-Perot interference occurs when the surface of the PDMS film layer filled into the fiber tube and the adjacent single mode fiber/fiber tube form a joint surface. This method forms a new fiber-optic Fabry-Perot pressure sensor that is very sensitive to external pressure parameters. The experimental results show that the optimized film thickness will be reduced to an order of 20 μm. Correspondingly, the fiber-optic pressure sensor has a sensitivity of up to 100 pm/kPa, which is about 100 times that reported in the literature. The structure also has better resistance to temperature interference. To our knowledge, this is the first in-depth study of the effects of the PDMS viscosity coefficient, diffusion rate, and fiber pressure sensitivity in fiber. The film thickness optimization method has some advantages, including a low cost, good controllability, and good application value in high sensitivity pressure and sound wave detection.

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“…Equation (1) gives the relationship between the three-beam interference spectrum, the PDMS thickness L 2 and the cavity length L 1 . The actual fiber FPI cavity length L 1 is determined.…”

Section: Structure and Principle Of Sensormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Optimized PDMS Thin Film Immersed Fabry-Perot Fiber Optic Pressure Sensor for Sensitivity Enhancement

Luo

Liu

et al. 2019

Coatings

View full text Add to dashboard Cite

show abstract

“…«Резонансный подход» [1][2][3][4][5] к диагностированию, в частности, температуры [6,7] или концентраций химических веществ [8][9][10]…”

Section: Introductionunclassified

Modal Analysis of Fiber Optic Resonance Piezoelecluminescent Pressure Sensor

Pan’kov¹,

Pisarev²,

Bayandin³

2023

JRE

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An electro-mechanical mathematical model of the functioning of an optical fiber resonance piezoelectroluminescent (RPEL) sensor with an external nonlinear elastic buffer layer has been developed. The sensor is designed to measure the distribution spectrum along the length of the dynamic and/or static pressure sensor using a resonant diagnostic method based on the results of measuring the amplitude spectrum of the intensity of the resulting light flux at the output from the fiber of the sensor. The numerical values of the frequency characteristics (- these are the proportionality coefficients for the informative relationship "pressure/resonance frequency") of the optical fiber RPEL sensor, which are used in the algorithm for finding the pressure spectrum, for different (first six) modes of vibration, are determined.

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“…Перспективными являются датчики [24][25][26][27][28] и индикаторные покрытия [29][30][31] на основе «механолюминесцентного эффекта» -светоотдачи при механическом воздействии, который может проявляться как для однородных, так и композиционных с пьезоэлектрической и электролюминесцентной фазами [32,33] материалов.…”

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Electro-mechanical model of tactile polymer fiber optic piezoelectroluminescent coating

Pan’kov¹,

Pisarev²,

Bayandin³

2022

JRE

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An electro-mechanical model has been developed for the functioning of a tactile polymer coating with a built-in fiber optic piezoelectroluminescent (PEL) sensor and many villi (vibrisses) on the surface of the coating along the sensor. Local deformation of the coating and the built-in sensor is carried out in the disturbance zones, witch are local areas of the coating (sensor) near the points of cantilever fastening of the tufts at their contacts with the analyzed object. Mechanoluminescent effect occurs on deformed sections of sensor when electric field of section of its piezoelectric layer affects adjacent section of electroluminescent layer. Modeling and analysis of substantially inhomogeneous deformation and electric fields occurring in piezoelectric and electroluminescent layers of the sensor were carried out and characteristic forms of generated informative light signals for different cases of deformation of bending villi in different planes and torsion as a result of contact of villi ends with the surface of the analyzed object were revealed.

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Piezoelectroluminescent fiber-optic sensors for temperature and deformation fields

Cited by 9 publications

References 13 publications

An Optimized PDMS Thin Film Immersed Fabry-Perot Fiber Optic Pressure Sensor for Sensitivity Enhancement

An Optimized PDMS Thin Film Immersed Fabry-Perot Fiber Optic Pressure Sensor for Sensitivity Enhancement

Modal Analysis of Fiber Optic Resonance Piezoelecluminescent Pressure Sensor

Electro-mechanical model of tactile polymer fiber optic piezoelectroluminescent coating

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