This study proposes a novel fiber optic strain sensor employing a cascaded configuration of a microfiber interferometer (MFI) and a fiber Bragg grating (FBG). The MFI generates
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Strain and Temperature Discrimination and Measurement Using Superimposed Fiber Bragg Grating Sensor : Proceedings of the 13th International Conference on Experimental Mechanics,
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Frequently Asked Questions on Fiber Bragg Grating Technology & Systems Optical sensors based on Fiber Bragg Gratings (FBG) are becoming increasingly
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Fiber-optic sensing (FOS) technology has emerged as a cutting-edge research focus in the sensor field due to its miniaturized structure, high
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Herein, we report a fast-response optical fiber humidity sensor based on MXene-Lys integrated with a tilted fiber Bragg grating for real-time monitoring of human finger motion.
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Fiber Bragg grating (FBG) sensors have emerged as advanced tools for monitoring a wide range of physical parameters in various fields, including structural health, aerospace, biochemical,
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In recent years there has been considerable interest in developing photonic temperature sensors such as the Fiber Bragg gratings (FBG) as an alternative to resistance thermometry. In this study we
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Experimental investigations are conducted to clarify the performance in the temperature range from room temperature to 4 K for the developed FBG strain sensors. Results confirm that the
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Fiber-optic hydrogen gas sensor using Pt catalyzed tungsten trioxide (WO 3) was proposed and characterized in this paper. Pt-loaded WO 3 coatings prepared with sol–gel method
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This study explores the application of two machine learning algorithms, Linear Regression (LR) and Random Forest (RF), to predict strain in a material based on temperature data.
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A fiber Bragg grating (FBG)-enabled smart washer for bolt pre-load measurement: design, analysis, calibration, and experimental validation. Sensors 2018; 18 (8): 2586.
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Optical fiber sensors, particularly fiber Bragg gratings (FBGs), offer negligible mass, distributed sensing, and immunity to electromagnetic interference, but their wavelength shift is a combined function of
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FBG temperature sensors are investigated for cryogenic, ambient, high-temperature and ultrahigh-temperature environments.
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A polybutylene terephthalate (c-PBT) coating for enhancing the temperature sensitivity of a fiber Bragg grating- (FBG-) based sensor is proposed
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A customized fiber Bragg grating acceleration sensor is designed and applied to measure the low flow rate and detect leakage in the pipeline.
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Experimental results are presented that demonstrate, when the laser is locked, this method detects differential phase shifts in the optical carrier relative to its sidebands, due to minute
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Strain gage sensors have been used to evaluate the local behavior of structures; however, there are limited studies for its application in bridge dynamic feature identification. In this study, fiber Bragg
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Among various sensing technologies, fiber Bragg grating (FBG) sensors have emerged as a promising solution for damage detection in composite structures [, , , ], offering distinct
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In this paper, a highly sensitive refractive index (RI) and temperature sensor based on two fiber Bragg gratings (FBGs) cascaded with a droplet-like fiber interferometer (DLFI) is...
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This paper analyzed the strain-temperature cross sensitive characteristic of optical fiber Bragg grating (FBG) theoretically, designed and
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In this paper, a highly sensitive refractive index (RI) and temperature sensor based on two fiber Bragg gratings (FBGs) cascaded with a droplet-like
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This example demonstrates a temperature sensor based on fiber Bragg gratings (FBG). The temperature-dependent change of the refractive indices of the fiber, consequently the shift of its
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Point-by-point inscription: Directly writes grating planes with femtosecond lasers. Draw-tower grating: Inscribes gratings during fiber manufacturing for high mechanical stability. Applications in Sensing
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In this work, we design a stress sensor for multi-parameter haptic perception based on a side-polished chirped fiber Bragg grating (SCFBG). And an improved mutual correlation spectral
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To solve the temperature/strain cross-sensitivity problem, simultaneous measurement of temperature and strain can be achieved by using the two spectra of LP 01 mode and LP 11 mode in
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An experiment was developed to relate the wavelength shifts resulting from temperature changes of fiber Bragg grating (FBGs) to the thermal expansion coefficients.
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Wide-area and multi-point remote sensing technology plays an important role in the fields of disaster monitoring and locating. We demonstrate a demultiplexing method for quasi-distributed
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Aiming to the accurate measurement of aircraft surface temperature in thermal vibration environment, a design and fabrication method of fiber Bragg grating (FBG) temperature sensor
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