Results 11 to 20 of about 200,851 (352)
Photocatalytic synergistic biofilms enhance tetracycline degradation and conversion
Environmental Science and Ecotechnology, 2023 Tetracyclines are refractory pollutants that cause persistent harm to the environment and human health. Therefore, it is urgently necessary to develop methods to promote the efficient degradation and conversion of tetracyclines in wastewater. This report
Chuanbao Xiao +9 more
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Sensors, 2022 The demodulation algorithm based on 3 × 3 coupler in a fiber-optic hydrophone array has gained extensive attention in recent years. The traditional method uses a circulator to construct the normal path-match interferometry; however, the problem of ...
Yandong Pang +5 more
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Galloping Vibration Monitoring of Overhead Transmission Lines by Chirped FBG Array
Photonic Sensors, 2022 A distributed online fiber sensing system based on the phase-sensitive optical time domain reflectometer (Φ-OTDR) enhanced by the drawing tower fiber Bragg grating (FBG) array is presented and investigated experimentally for monitoring the galloping of ...
Qizhong Yan +5 more
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Overview of Fibre Optic Sensing Technology in the Field of Physical Ocean Observation
Frontiers in Physics, 2021 Fiber optic sensors are expected to be an auxiliary measurement tool in the field of ocean observation due to their small size, easy networking, intrinsic immunity to electromagnetic interference, and many other advantages.
Li Wang +6 more
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A iber optic vibration sensor based on SMF-MMF-SMF structure and a tilted iber Bragg grating [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2021 The paper proposes a version of realization for a fiber optic vibration sensor. The sensor possesses a wide range of operation frequencies with such interrogation devices as optical power meters.
Andrei A. Dmitriev +3 more
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Fiber-Optic Chemical Sensors and Fiber-Optic Bio-Sensors [PDF]
Sensors, 2015 This review summarizes principles and current stage of development of fiber-optic chemical sensors (FOCS) and biosensors (FOBS). Fiber optic sensor (FOS) systems use the ability of optical fibers (OF) to guide the light in the spectral range from ultraviolet (UV) (180 nm) up to middle infrared (IR) (10 μm) and modulation of guided light by the ...
Marie Pospísilová +2 more
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2D-Vector Magnetic Sensing Based on Ring-Shaped Fiber-Optic Structure Coated with Magnetic Fluid
Micromachines, 2023 In this work, a novel fiber-optic sensor for 2D magnetic sensing is explored based on nanostructured magnetic fluid. The fiber-optic sensor comprises a ring-shaped fiber structure that is coated with magnetic fluid.
Qijing Lin +4 more
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Interferometric Fiber Optic Sensors [PDF]
Sensors, 2012 Fiber optic interferometers to sense various physical parameters including temperature, strain, pressure, and refractive index have been widely investigated. They can be categorized into four types: Fabry-Perot, Mach-Zehnder, Michelson, and Sagnac.
Byeong Ha Lee +6 more
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Microbend fiber-optic sensor [PDF]
Applied Optics, 1984 Intensity modulation induced by microbending in multimode fibers is considered as a transduction mechanism for detecting environmental changes such as pressure, temperature, acceleration, and magnetic and electric fields. A generic microbend sensor has been defined and studied, and its components, such as sensing fiber, light source, optical fiber ...
N, Lagakos, J H, Cole, J A, Bucaro
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STUDY OF GAIN FACTOR EFFECT OF ERBIUM DOPED FIBER AMPLIFIER ON NOISE FLOOR LEVEL OF FIBER-OPTIC INTERFEROMETRIC SENSOR [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2018 Subject of Research. The paper presents experimental study results of the gain factor effect of an erbium doped fiber amplifier on the noise floor level of a fiber-optic interferometric acoustic sensor.
M. V. Bykadorov +3 more
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