To better address the temperature interference problem of fiber Bragg grating (FBG) strain-based anemometer sensors, based on the FBG sensor theory, the cross-sensitivity mechanism of the fiber grating during wind speed and temperature measurement is analyzed ...
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In this paper, a novel high temperature strain sensor based on a polyimide-coated fiber Bragg grating (FBG) and a rhombus metal structure is presented and experimentally demonstrated.
The temperature detection grating is encapsulated in a stainless-steel capillary tube single-end fixed support structure to shield the device from wind pressure, achieve a rapid thermal
This deformation is measured by fiber Bragg grating strain gauges. Comprehensive theoretical and numerical simulation research are conducted to examine how the sensor''s design
A bare fiber Bragg grating (FBG) for temperature measurement, an FBG with lamellar polyimide (PI) coating for salinity measurement and a diaphragm-based extrinsic Fabry-Perot
To address the issue of high-precision reconstruction of the posture of bionic dexterous hand fingers, a finger posture reconstruction system using Fiber Bragg Grating (FBG) as the sensing element is
In this paper, the new compensation method of hull monitoring FBG sensor based on the sensor theory with both FBG temperature self-correction and steel thermal expansion effects
Abstract A Two-photon 3D printing Fabry-Perot (FP) sensor for simultaneous measurement of temperature and non-contact pressure is proposed and verified by experiments. A
Fiber Bragg grating (FBG) sensors are widely used in the field of transmission line ice monitoring, but the cross-sensitivity of temperature and stress seriousl
Optical fiber sensors based on surface plasmon resonance (SPR) are powerful tools for biosensing, yet their performance is often hindered by thermal and mechanical instability. This work
However, the evaluation methods and monitoring technologies for composite tanks under cryogenic experiments are still challenging problems. In this paper, fiber Bragg grating (FBG) is used
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
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
From the fundamental principle point of view, fiber-based RI sensors usually fall into two main categories. The first one is based on fiber gratings. Compared with the uniform fiber Bragg
This paper developed a novel method and relevant mechanical configurations to enhance strain sensitivity and realize temperature compensation simultaneously for fiber Bragg grating (FBG)
Fiber Bragg Grating Sensors: FBG sensors comprised 60% of shipments, supporting strain, temperature, and pressure monitoring applications. More than 200,000 FBG sensors were
The fiber-optic voltage meter, patented by Kazan researchers, is based on the principles of optics. The device is made using an optical sensor based on a fiber Bragg lattice, which is a periodic
An experiment was developed to relate the wavelength shifts resulting from temperature changes of fiber Bragg grating (FBGs) to the thermal expansion coefficients.
Strain monitoring is of great significance to identify the failure of key mechanical components and ensure the good operation of mechanical equipment. In terms of the common issue
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.
Fiber Bragg Grating (FBG) sensors are a promising alternative, but their simultaneous response to both temperature and strain (cross-sensitivity) has hindered their application.
Therefore, this study proposed a reasonable procedure for temperature compensation for the FBG sensors embedded in packaging material and host material. In particular, the thermal sensitivity of
Bragg gratings are reflecting structures with a periodic refractive index modulation. They are contained in dielectric mirrors and in some fiber devices.