Results 11 to 20 of about 12,220 (301)

Fiber Loop Ringdown — a Time-Domain Sensing Technique for Multi-Function Fiber Optic Sensor Platforms: Current Status and Design Perspectives [PDF]

open access: yesSensors, 2009
Fiber loop ringdown (FLRD) utilizes an inexpensive telecommunications light source, a photodiode, and a section of single-mode fiber to form a uniform fiber optic sensor platform for sensing various quantities, such as pressure, temperature, strain ...
Chuji Wang
doaj   +2 more sources

Lightning current measurement with fiber-optic sensor [PDF]

open access: yes2014 International Conference on Lightning Protection (ICLP), 2014
A fiber-optic current sensor is successfully developed with many potential applications for electric current measurement. Originally developed for in-flight lightning measurement, the sensor utilizes Faraday Effect in an optical fiber. The Faraday Effect causes linear light polarization in a fiber to rotate when the fiber is exposed to a magnetic field.
Truong X. Nguyen   +5 more
openaire   +4 more sources

Characteristic Analysis and Experiment of Adaptive Fiber Optic Current Sensor Technology [PDF]

open access: yesApplied Sciences, 2019
The straight-through magneto-optical glass current sensor has desirable temperature properties, but it is vulnerable to magnetic interference. In contrast, a polarization-type fiber optic current sensor has poor temperature performance, but the magnetic ...
Yansong Li   +3 more
doaj   +2 more sources

Miniature Fiber-Optic Magnetic Field Sensor Based on Ampere Force and Fiber Laser [PDF]

open access: yesPhotonic Sensors, 2020
A compact fiber-optic magnetic field sensor is proposed by packaging an orthogonal dual-frequency fiber grating laser and a copper wire with alternating electrical current together inside epoxy resin.
Weiren Cheng   +4 more
doaj   +2 more sources

Thermo-Optic Nanomaterial Fiber Hydrogen Sensor [PDF]

open access: yesNanomaterials
In the current energy transition procedure, the application prospect of hydrogen as a clean energy material has attracted much attention. However, the widespread use of hydrogen is also accompanied by safety hazards, and how to detect hydrogen safely and
Xuhui Zhang   +6 more
doaj   +2 more sources

Utilization of Faraday Mirror in Fiber Optic Current Sensors [PDF]

open access: yesRadioengineering, 2008
Fiber optic sensors dispose of some advantages in the field of electrical current and magnetic field measurement, like large bandwidth, linearity, light transmission possibilities. Unfortunately, they suffer from some parasitic phenomena.
P. Fiala, P. Drexler
doaj   +3 more sources

MINIMIZATION OF NOISE FLOOR LEVEL OF FIBER-OPTIC INTERFEROMETRIC SENSOR ARRAY BY ADJUSTMENT OF OPERATIONAL AMPLIFIER CASCADE PARAMETERS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. The paper presents results of the experimental study on the dependence of the noise floor level of a fiber-optic interferometric sensor array on the gain factor of operational amplifiers located on the signal processing board and ...
Matvey V. Bykadorov   +3 more
doaj   +1 more source

Research on Measurement Technology of Ship Leakage Current by All-Fiber Optic Current Sensor

open access: yesIEEE Access, 2021
In this study, all-fiber optic current sensor is adapted to measure the leakage current of ships. The analytical model is built in a two-dimensional (2D) cartesian coordinate system.
Jianhua Wu   +3 more
doaj   +1 more source

Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]

open access: yes, 2006
Lead sensitivity in low-coherence interferometric fiber-optic sensors is a well-known problem. It can lead to a severe degradation in the sensor resolution and accuracy through its effect on the fringe visibility and interferometric phase.
Flockhart, G M H   +2 more
core   +1 more source

All-optical differential current detection technique for unit protection applications [PDF]

open access: yes, 2013
In this paper we demonstrate a novel, all-optical differential current protection scheme. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and using a simple optoelectronic threshold detector, an ...
Philip Orr   +7 more
core   +1 more source

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