Comparative analysis of the DFB fiber laser and fiber-optic interferometric strain sensors [PDF]
, 2007 The DFB fiber laser strain sensor is shown to provide an improvement in the minimum detectable length change by a factor of 275 at 2 kHz for an applied strain when compared with an interferometric sensor interrogated by at equivalent DFB laser.
C. K. Kirkendall +5 more
core +4 more sources
Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]
, 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 +4 more sources
Micromachined optical fiber current sensor [PDF]
Applied Optics, 1999 We describe a micromachined optical fiber current sensor. The sensing element consists of a squared silicon membrane (8 mm long and 20 microm thick) that has a cylindrical permanent magnet (NdFeB alloy, 3-mm diameter, 1.5 mm high) fixed on its central region.
Heredero, R.L. +5 more
openaire +6 more sources
All-optical differential current detection technique for unit protection applications [PDF]
, 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 ...
Niewczas, Pawel +3 more
core +4 more sources
Efficient fiber Bragg grating and fiber Fabry-Pe'rot sensor multiplexing scheme using a broadband pulsed mode-locked laser [PDF]
, 2005 A pulsed broadband mode-locked laser (MLL) combined with interferometric interrogation is shown to yield an efficient means of multiplexing a large number of fiber Bragg grating (FBG) or fiber Fabry-Perot (FFP) strain sensors with high performance ...
Flockhart, G M H +2 more
core +4 more sources
A Fiber-Optic Current Sensor for Aerospace Applications [PDF]
Proceedings of the 25th Intersociety Energy Conversion Engineering Conference, 1990 A robust, accurate, broadband, AC sensor using fiber optics that is being developed for space applications at power frequencies as high as 20 kHz is described. It can also be used in low- and high-voltage 60-Hz terrestrial power systems and in 400-Hz aircraft systems.
R.L. Patterson +3 more
openaire +1 more source
Research on Measurement Technology of Ship Leakage Current by All-Fiber Optic Current Sensor
IEEE 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
Sensors, 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 +1 more source
Self-Referencing Fiber-Optic Intensity Sensors Using Ring Resonators and Fiber Bragg Gratings [PDF]
, 2006 An improved ring resonator self-referencing technique in a new reflection configuration for remote fiber-optic intensity sensors is demonstrated using fiber Bragg gratings. Sensor sensitivity doubles and a single fiber lead is used.
Sánchez-Pena, José Manuel +3 more
core +2 more sources
Characteristic Analysis and Experiment of Adaptive Fiber Optic Current Sensor Technology
Applied 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 +1 more source