Fiber-Optic Current Sensor Based on FBG and Terfenol-D With Magnetic Flux Concentration for Enhanced Sensitivity and Linearity

López, Juan Camilo; Dante, Alex; Cremonezi, Alcides O.; Bacurau, Rodrigo Moreira; Carvalho, Cesar Cosenza; Allil, Regina C.; Ferreira, Elnatan Chagas; Werneck, Marcelo Martins

doi:10.1109/jsen.2019.2959231

Cited by 41 publications

(22 citation statements)

References 25 publications

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“…Geometry TD Mass Linear Range [13] Cylindrical 40 250-700 A [14] Toroidal 144 320-900 A Lopez et al [19] proposed an optical fiber current sensor with concentrated magnetic flux density based on magnetostrictive composite material, and the mass of Terfenol-D alloy used in the proposed sensor was only 0.42 g. The author uses FEM to optimize the geometry of the optical fiber current sensor. As shown in Figure 13, the structure of the magnetically permeable material is arranged in a ring structure from thick to thin, which not only reduces the usage amount of the magnetically permeable material, but also makes the magnetic flux density on the magnetic field telescopic composite material more concentrated.…”

Section: Referencementioning

confidence: 99%

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Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials

Peng

et al. 2020

Applied Sciences

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Optical fiber current sensors are widely used in the online monitoring of a new generation power system because of their high electrical insulation, wide dynamic range, and strong anti-electromagnetic interference ability. Current sensors, based on fiber Bragg grating (FBG) and giant magnetostrictive material, have the advantages of high reliability of FBG and high magnetostrictive coefficient of giant magnetostrictive material, which can meet the monitoring requirements of digital power systems. However, giant magnetostrictive materials are expensive, fragile, and difficult to mold, so giant magnetostrictive composite materials have replaced giant magnetostrictive materials as the sensitive elements of sensors. High sensitivity, high precision, wide working range, low response time, and low-cost optical fiber current sensors based on magnetostrictive composites have become a research hotspot. In this paper, the working principle of the sensor, the structure of the sensor, and the improvement of magnetostrictive composite materials are mainly discussed. At the same time, this paper points out improvements for the sensor.

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Section: Referencementioning

confidence: 99%

“…1.5 g hyperboloid magnetostrictive material 2. open-loop structure Lower cost, higher sensitivity, faster response time, and easy installation. Juan D. Lopez [19] 1. 0.42 g rectangular magnetostriction material 2. circular magnetic permeability material from coarse to fine…”

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confidence: 99%

Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials

Peng

et al. 2020

Applied Sciences

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“…If a transductive layer or package is applied to an FBG, one that could convert a desirable measurand into a strain, the FBG would then act as a sensor for that measurand. Recently, for example, an FBG was embedded within a magnetostrictive polymer composite comprising epoxy resins and Terfenol D in order to create an FBG sensor sensitive to magnetic fields [ 39 ]. The package, upon exposure to a magnetic field, compresses the FBG resulting in a detectable strain-induced Bragg wavelength shift.…”

Section: Through-the-coating Fiber Bragg Gratingsmentioning

confidence: 99%

Ultrafast Laser Processing of Optical Fibers for Sensing Applications

Mihailov

Hnatovsky

Abdukerim

et al. 2021

Sensors

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A review of recent progress in the use of infrared femtosecond lasers to fabricate optical fiber sensors that incorporate fiber Bragg gratings (FBG) and random fiber gratings (RFG) is presented. The important advancements in femtosecond laser writing based on the phase mask technique now allow through-the-coating (TTC) fabrication of Bragg gratings in ultra-thin fiber filaments, tilted fiber Bragg gratings, and 1000 °C-resistant fiber Bragg gratings with very strong cladding modes. As an example, through-the-coating femtosecond laser writing is used to manufacture distributed fiber Bragg grating sensor arrays for oil pipeline leak detection. The plane-by-plane femtosecond laser writing technique used for the inscription of random fiber gratings is also reviewed and novel applications of the resultant devices in distributed temperature sensing, fiber lasers and fiber laser sensors are discussed.

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“…However, the problem has not been solved completely, but the sensor structure becomes more complex to some extent. In comparison with the FOCS, the fiber Bragg grating (FBG)based current sensor has the advantages of no polarization maintaining fiber (PMF) and discrete optical components, and it is capable to implement the multi-point measurement by cascading a series of sensors in one optical fiber [21][22][23][24][25][26][27]. However, the cross-sensitivity to temperature of FBG is a problem that should be solved.…”

Section: Introductionmentioning

confidence: 99%

A LiNbO3 Integrated Optics Sensor for Measurement of Pulsed Current

Zhang

et al. 2022

Crystals

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A LiNbO3 integrated optics sensor fusing with an optical waveguide Mache–Zehnder interferometer (MZI), a loop-antenna, and a segmented electrode has been proposed, designed, and fabricated for the measurement of pulsed current. The experiment results have demonstrated that, for measurement of the standard 8/20 μs lightning pulsed current, the average of the front time and duration time of the sensor detected pulsed current waveform are 7.00 μs and 19.78 μs, respectively, while those detected by the Person CT are 7.30 μs and 20.35 μs, respectively. From 100 A to 3300 A, the sensor shows good linear characteristics, and the correlation coefficient is 0.9989. Moreover, the minimum detectable pulsed current is about 66 A in the time domain. All these results reveal the sensor can provide a new and potential technology for the measurement of pulsed current in the time domain.

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Fiber-Optic Current Sensor Based on FBG and Terfenol-D With Magnetic Flux Concentration for Enhanced Sensitivity and Linearity

Cited by 41 publications

References 25 publications

Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials

Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials

Ultrafast Laser Processing of Optical Fibers for Sensing Applications

A LiNbO3 Integrated Optics Sensor for Measurement of Pulsed Current

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