Results 21 to 30 of about 8,813,533 (289)
New multiplexing scheme for monitoring fiber optic Bragg grating sensors in the coherence domain
, 1997 A new multiplexing scheme for monitoring fiber optic Bragg gratings in the coherence domain has been developed. Grating pairs with different grating distances are distributed along a fiber line, and interference between their reflections is monitored ...
Usbeck, K. +11 more
core +2 more sources
Fiber Optic Sensors Based on the Faraday Effect
Sensors, 2021 Some 175 years ago Michael Faraday discovered magnetic circular birefringence, now commonly known as the Faraday effect. Sensing the magnetic field through the influence that the field has on light within the fiber optic sensor offers several advantages,
Pedja Mihailovic, Slobodan Petricevic
doaj +1 more source
Miniature Fiber-Optic Magnetic Field Sensor Based on Ampere Force and Fiber Laser
Photonic 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 +1 more source
FBG-based fibre-optic current sensors for power systems protection : laboratory evaluation [PDF]
, 2009 Conventional differential current unit protection schemes rely on a pair of electronic protection relays that measure current phasors separately at the boundaries of the protected zone.
Niewczas, Pawel +3 more
core +3 more sources
A broadband Faraday fiber-optic current sensor with excess noise compensation
Results in Physics, 2020 A Faraday fiber-optic current sensor with suppression of excess noise produced by a low-coherent light source is presented. The sensor is designed to detect short current pulses and represents an in-line interferometer with a sensing element based on a ...
V.P. Gubin +4 more
doaj +1 more source
Fiber-Optic Chemical Sensors and Fiber-Optic Bio-Sensors
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 ...
Marie Pospíšilová +2 more
doaj +1 more source
Simulation analysis of temperature effects on all-fiber optic current sensor
Energy Reports, 2021 Temperature is the main factor restricting the application of all-fiber current sensors. To comprehensively analyze temperature influences, the influences of temperature on Verdet constant, birefringence, and phase delay of the quarter-wave plate are ...
Jianhua Wu +3 more
doaj +1 more source
Fiber-Optic Sensor for Aircraft Lightning Current Measurement [PDF]
4th AIAA Atmospheric and Space Environments Conference, 2012 An electric current sensor based on Faraday rotation effect in optical fiber was developed for measuring aircraft lightning current. Compared to traditional sensors, the design has many advantages including the ability to measure total current and to conform to structure geometries.
Truong X. Nguyen +5 more
openaire +1 more source
MATEC Web of Conferences, 2017 The design of current fiber optic sensor technology especially when related to the chemical still requires a certain degree of the quantitative reliability.
Md Johari Md Ashadi +4 more
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Fiber-optic chemical sensing with Langmuir-Blodgett overlay waveguides [PDF]
, 1999 Fiber-optic chemical sensing has been demonstrated with a side-polished single- mode optical fiber, evanescently coupled to chemically sensitive Langmuir- Blodgett (LB) overlay waveguides.
Tatam, Ralph P. +3 more
core +1 more source