Research on the Dual Modulation of All-Fiber Optic Current Sensor [PDF]
Sensors, 2022 Acousto-optic modulator (AOM) and electro-optical modulator (EOM) are applied to realize the all-fiber current sensor with a pulsed light source. The pulsed light is realized by amplitude modulation with AOM.
Jianhua Wu, Xiaofeng Zhang, Liang Chen
doaj +4 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 +4 more sources
Assessment of the Structural Vibration Effect on Plasma Current Measurement Using a Fiber Optic Current Sensor in ITER [PDF]
Sensors, 2023 In this paper, we assess the effect of cryostat bridge vibrations on the plasma current measurement accuracy when using a fiber optic current sensor (FOCS) in ITER.
Sung-Moon Kim +5 more
doaj +4 more sources
An affordable smartphone interrogatable polarimetric fiber optic current sensor
Results in OpticsIn this paper we describe a low cost polarimetric optical fiber sensor based on a BSO magneto-optic crystal and plastic fibers spectrally interrogated with a smartphone.
Tinko Eftimov +5 more
doaj +3 more sources
Lightning current measurement with fiber-optic sensor [PDF]
2014 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.
Nguyễn Xuân Trường +5 more
openalex +2 more sources
Research on All-Fiber Dual-Modulation Optic Current Sensor Based on Real-Time Temperature Compensation [PDF]
IEEE Photonics Journal, 2022 We present a method to simultaneously measure the temperature and electric current, which can be applied for the all-fiber optic current sensor (AFOCS) temperature compensation.
Jianhua Wu +4 more
doaj +2 more sources
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.
Nguyễn Xuân Trường +5 more
openalex +2 more sources
Energy Reports, 2022 Measurement accuracy is essential for the all-fiber optic current sensor. Angle errors of axis alignment in the fusion processing affect the measurement accuracy with different modulation and demodulation methods.
Jianhua Wu +3 more
doaj +2 more sources
Optical Polarization Errors in Sagnac Fiber Optic Current Sensor [PDF]
Proceedings of the 2013 International Conference on Advanced Computer Science and Electronics Information, 2013 Sagnac fiber optic current sensor(S-FOCS) is a kind of precision instrument based on optical polarization and optical interference theory. There are several kinds of error characteristics from optical components in S-FOCS, including polarizer, integrated optical chip, quarter-wave retarder, sensing head and so on.
Li hui Wang +3 more
openalex +3 more sources
Passive Time-Division Multiplexing Fiber Optic Sensor for Magnetic Field Detection Applications in Current Introduction [PDF]
PhotonicsUnder the dual impetus of the “Dual Carbon” goals and the construction of smart grids, the development of new energy power infrastructure has been fully realized.
Yong Liu +5 more
doaj +2 more sources