Fiber-Optic Current Sensor Based on FBG and Optimized Magnetostrictive Composite

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

doi:10.1109/lpt.2019.2952255

Cited by 14 publications

(8 citation statements)

References 13 publications

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“…The sensor based on hyperboloid magnetostrictive composite material not only reduces the production cost and improves the sensitivity of the sensor, but also reduces the response time of the sensor. Lopez et al [18] proposed an optical fiber current sensor based on hyperboloid magnetostrictive composite material, and the proposed that the sensor only uses 1.5 g of Terfenol-D alloy. The sensor adopts an open-loop structure, which can not only reduce the use of magnetically permeable materials, but also allow convenient installation of the sensor.…”

Section: Sensor Structurementioning

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: Sensor Structurementioning

confidence: 99%

“…Further reduce the cost and improve the sensitivity, which is suitable for fault detection. Juan D. Lopez [18] 1. 1.5 g hyperboloid magnetostrictive material 2. open-loop structure Lower cost, higher sensitivity, faster response time, and easy installation.…”

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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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“…However, an optical fiber is in itself not sensitive to an electromagnetic field, and thus developing an optical fiber-based magnetic field sensor will largely depend on the sensing characteristics of added magnetic induction materials. Magnetic induction materials can be classified into three categories according to their working principles: magnetic fluid [8][9][10][11][12], magnetostrictive materials [2,3,[13][14][15][16][17][18][19][20], and magneto-rotational materials [21][22][23][24]. A magnetic fluid can flexibly be integrated into many types of fiber sensing structures, such as fiber Fabry-Perot interferometers [25,26], fiber Mach-Zehnder interferometers [27], fiber Bragg gratings (FBG) [12], and fiber tapering structures [28].…”

Section: Introductionmentioning

confidence: 99%

Optical Fiber Sensor with Stable Operating Point for AC Magnetic Field Measurement

Chen

Lin

et al. 2022

Applied Sciences

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A novel alternating current (AC) magnetic field sensor that has a stable operating point and is insensitive to ambient temperature fluctuations is presented. The sensor is based on a high attenuation fiber Bragg grating (HAFBG) attached to a magnetostrictive rod. A stable operating point is achieved by regulating a heating laser based on a feedback algorithm that compensates the temperature fluctuations of the surrounding environment. Experimental results show that the sensor responds well to dynamic magnetic fields and is able to ensure a stable operating point in the range of at least 15 °C in an ambient temperature disturbance test. The ease of fabrication and excellent performance suggest that the proposed fiber sensor is suitable for practical AC magnetic field sensing applications, such as health monitoring of transformers and fault diagnosis of induction motors.

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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 Optimized Magnetostrictive Composite

Cited by 14 publications

References 13 publications

Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials

Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials

Optical Fiber Sensor with Stable Operating Point for AC Magnetic Field Measurement

A LiNbO3 Integrated Optics Sensor for Measurement of Pulsed Current

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