A review paper on fiber-optic sensors and application of PDMS materials for enhanced performance

Sidek, Othman; Afzal, Muhammad Hassan Bin

doi:10.1109/isbeia.2011.6088858

Cited by 15 publications

(8 citation statements)

References 41 publications

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“…In the traditional optical fiber sensing principle based on Mach-Zehnder interference, the light in the sensor can usually be divided into core-mode light (reference-mode light) and cladding-mode light (sensing mode light) [ 19 , 20 ]. The energy distribution of the light field can be analyzed according to the light intensity interference formula [ 20 , 21 , 22 , 23 ]:

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Section: Sensors Coated With the Pdmsmentioning

confidence: 99%

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A Review of Coating Materials Used to Improve the Performance of Optical Fiber Sensors

Yang

Wang

et al. 2020

Sensors

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In order to improve the performance of fiber sensors and fully tap the potential of optical fiber sensors, various optical materials have been selectively coated on optical fiber sensors under the background of the rapid development of various optical materials. On the basis of retaining the original characteristics of the optical fiber sensors, the coated sensors are endowed with new characteristics, such as high sensitivity, strong structure, and specific recognition. Many materials with a large thermal optical coefficient and thermal expansion coefficients are applied to optical fibers, and the temperature sensitivities are improved several times after coating. At the same time, fiber sensors have more intelligent sensing capabilities when coated with specific recognition materials. The same/different kinds of materials combined with the same/different fiber structures can produce different measurements, which is interesting. This paper summarizes and compares the fiber sensors treated by different coating materials.

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Section: Sensors Coated With the Pdmsmentioning

confidence: 99%

“…This is the principle used in this part of the sensor. The performance of PDMS, which has a higher negative thermal optical coefficient (−4.66 × 10 −4 / • C) and thermal expansion coefficient (300 × 10 −6 / • C), has been fully reflected in the sensor [19].…”

Section: A Variety Of Structures Based On Mach-zehnder Interferencementioning

confidence: 99%

A Review of Coating Materials Used to Improve the Performance of Optical Fiber Sensors

Yang

Wang

et al. 2020

Sensors

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“…[1] Optical fiber sensors that have a very high bandwidth, electromagnetic interference of immunity and a strong capability of functioning under difficult environments of temperature, toxic and pressure. [2] In this field of optical fiber sensing technology, the fiber Bragg grating (Fiber Bragg Grating) sensors as an outstanding merit is one of the most exciting developments with multiplexing capability, and applied widely in various SHM paradigms. [3] An Fiber Bragg Grating has a special character to proceed and has been carried out as a sensor.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Fiber Bragg Grating Characteristics and Behaviors as Strain and Temperature Sensor

Jalil¹

2021

IJRASET

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Optical Fiber Sensor (OFS) has come quite considerable and famous in world of sensor technology where it has been used widely to detect for a changeable environment and responds to some output on other system such as in industrial, chemical analysis and monitoring. A Fiber Bragg Grating (Fiber Bragg Grating) is a kind of appropriated where the short fragment of optical fiber which certain and specific wavelength is reflected with light and the Bragg reflector started developed and transmits all others. The current project is concerned with the development characteristics and behaviors of strain and temperature sensors acting on Fiber Bragg Grating by a computer simulation. This study focuses on analyzing the performance of the characteristics and behavior of strain and temperature sensors acting on Fiber Bragg Grating. A strain sensor is used to measure strain on an object of which the resistance varies range with applied force. Meanwhile,for the temperature sensor is used to measure and detect any abnormality of temperature acting on Fiber Bragg Grating such as can lead into fire and accidents. This will found out on how Fiber Bragg Grating can demonstrate strain and temperature sensors. A simulation of the computer program (MATLAB) will be carried out to simulate due to the strain and temperature sensor of Fiber Bragg Grating. Keywords Fiber Bragg Grating, sensors; Strain; Temperature; Simulation; MATLAB

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“…PDMS hydroxyl-terminated has been reported as a concrete additive [51] to reduce the production of calcite protecting the concrete structures against the reduction of the pH level. Sidek et al [52,53] reported the preparation of a fibre Bragg grating (FBG) sensor for strain detection in concrete structures, with and without a PDMS coating. PDMS coated FBG sensors have shown themselves to be more sensitive than uncoated FBG sensors [54].…”

Section: Introductionmentioning

confidence: 99%

PDMS Based Hybrid Sol-Gel Materials for Sensing Applications in Alkaline Environments: Synthesis and Characterization

et al. 2020

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Nowadays, concrete degradation is a major problem in the civil engineering field. Concrete carbonation, one of the main sources of structures’ degradation, causes concrete’s pH to decrease; hence, enabling the necessary conditions for corrosion reinforcement. An accurate, non-destructive sensor able to monitor the pH decrease resistant to concrete conditions is envisaged by many researchers. Optical fibre sensors (OFS) are generally used for concrete applications due to their high sensitivity and resistance to external interferences. Organic-inorganic hybrid (OIH) films, for potential functionalization of OFS to be applied in concrete structures, were developed. Polydimethylsiloxane (PDMS) based sol-gel materials were synthesized by the formation of an amino alcohol precursor followed by hydrolysis and condensation. Different ratios between PDMS and (3-aminopropyl)triethoxysilane (3-APTES) were studied. The synthesized OIH films were characterized by Fourier-transformed infrared spectroscopy (FTIR), UV–Vis spectroscopy, electrochemical impedance spectroscopy (EIS) and thermogravimetric analysis (TGA). The OIH films were doped with phenolphthalein (Phph), a pH indicator, and were characterized by UV–Vis and EIS. FTIR characterization showed that the reaction between both precursors, the hydrolysis and the condensation reactions occurred successfully. UV–Vis characterization confirmed the presence of Phph embedded in the OIH matrices. Dielectric and thermal properties of the materials showed promising properties for application in contact with a high alkaline environment.

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A review paper on fiber-optic sensors and application of PDMS materials for enhanced performance

Cited by 15 publications

References 41 publications

A Review of Coating Materials Used to Improve the Performance of Optical Fiber Sensors

A Review of Coating Materials Used to Improve the Performance of Optical Fiber Sensors

Simulation of Fiber Bragg Grating Characteristics and Behaviors as Strain and Temperature Sensor

PDMS Based Hybrid Sol-Gel Materials for Sensing Applications in Alkaline Environments: Synthesis and Characterization

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