Current measurement method based on integral reconstruction of magnetic rotation angle
DOI:
https://doi.org/10.54097/ije.v2i1.5614Keywords:
Current measurement method, Magnetic rotation angleAbstract
In view of the nonlinear limitation of the sine function on the magnetic rotation angle in the optical current sensor based on the light intensity detection mode, this paper proposes a current measurement method based on the integral reconstruction of the magnetic rotation angle, thus avoiding the large current measurement error caused by the approximate linear measurement of the magnetic rotation angle. In this method, the cosine term in the derivative of the sine signal containing the magnetic rotation angle is eliminated by the constant deformation of the trigonometric function, and then the magnetic rotation angle is reconstructed by integration. The experimental results show that within the current range of 0.20 Arms to 2.40 Arms, the measurement error of the current value of the integral reconstruction method is less than 1.30%, the measurement error is less than the approximate linear measurement method, and there is a good linear relationship between the magnetic rotation angle and the current, with a linearity of 99.987%.
Downloads
References
LIU C, SHEN T, WU H-B, et al. Applications of magneto-strictive, magneto-optical, magnetic fluid materials in optical fiber current sensors and optical fiber magnetic field sensors: A review [J]. Optical Fiber Technology, 2021, 65: 102634.
ZHAO J, SHI L, SUN X. Design and Performance Study of a Temperature Compensated +/- 1100-kV UHVdc All Fiber Current Transformer [J]. IEEE Transactions on Instrumentation and Measurement, 2021, 70: 1-6.
QI Y, ZHANG X, WANG Y, et al. Application of a novel spatial non-reciprocal phase modulator in fiber optic gyroscope [J]. Optical Fiber Technology, 2020, 58: 102258.
LI Y S, LIU X Y, ZHANG W W, et al. Error characteristic analysis and experimental research on a fiber optic current transformer [J]. Applied Optics, 2018, 57(28): 8359-8365.
GUO Q, WEN J, HUANG Y, et al. Magneto-optical properties and measurement of the novel doping silica optical fibers [J]. Measurement, 2018, 127: 63-67.
DU J, TAO Y, LIU Y, et al. Highly sensitive and reconfigurable fiber optic current sensor by optical recirculating in a fiber loop [J]. Optics Express, 2016, 24(16): 17980-17988.
HUANG D, SRINIVASAN S, BOWERS J E. Compact Tb doped fiber optic current sensor with high sensitivity [J]. Optics Express, 2015, 23(23): 29993-29999.
BERAVAT R, WONG G K L, XI X M, et al. Current sensing using circularly birefringent twisted solid-core photonic crystal fiber [J]. Optics Letters, 2016, 41(7): 1672-1675.
ZHANG C, LI C, WANG X, et al. Design principle for sensing coil of fiber-optic current sensor based on geometric rotation effect [J]. Applied optics, 2012, 51(18): 3977-3988.
SUN L, JIANG S, MARCIANTE J R. All-fiber optical magnetic-field sensor based on Faraday rotation in highly terbium-doped fiber [J]. Optics Express, 2010, 18(6): 5407-5412.
SUN L, JIANG S, MARCIANTE J R. Compact all-fiber optical Faraday components using 65-wt%-terbium–doped fiber with a record Verdet constant of −32 rad/(Tm) [J]. Optics Express, 2010, 18(12): 12191-12196.
LI C. Magnetooptic Sensor Based on Electrogyration Compensation for Faraday Effect in Lead Molybdate Crystal [J]. IEEE Sensors Journal, 2016, 16(9): 2982-2987.
CHANG-SHENG L. Mutual compensation property of electrooptic and magnetooptic effects and its application to sensor [J]. Acta Physica Sinica, 2015, 64(4).
LI C, YOSHINO T. Single-crystal magneto-optic sensor with electrically adjustable sensitivity [J]. Applied Optics, 2012, 51(21): 5119-5125.
WANG Z P, WANG H Y, JIANG H L, et al. A magnetic field sensor based on orthoconjugate reflection used for current sensing [J]. Optics and Laser Technology, 2007, 39(6): 1231-1233.
MIHAILOVIC P, PETRICEVIC S, RADUNOVIC J. Improvements in difference-over-sum normalization method for Faraday effect magnetic field waveforms measurement [J]. Journal of Instrumentation, 2006, 1(12): P12002.
SILVESTRI L, CHEN Y, BRODZELI Z, et al. A Novel Optical Sensing Technology for Monitoring Voltage and Current of Overhead Power Lines [J]. IEEE Sensors Journal, 2021, 21(23): 26699-26707.
XU Z, XU Q, CHEN X, et al. A Linear Optical Current Transducer Based on Crystal Wedge Imaging Detection [J]. IEEE Sensors Journal, 2017, 17(23): 7894-7900.
HUANG Y, XU Q, XIE N, et al. A Linear Optical Current Transducer Implemented With a Strip Aluminum Polarization Grating [J]. IEEE Sensors Journal, 2021, 21(6): 7532-7540.
SIMA W X, ZENG L, YANG M, et al. Improving the Temperature and Vibration Robustness of Fiber Optic Current Transformer Using Fiber Polarization Rotator [J]. IEEE Transactions on Instrumentation and Measurement, 2022, 71: 1-12.
MIHAILOVIC P, PETRICEVIC S, STOJKOVIC Z, et al. Development of a portable fiber-optic current sensor for power systems monitoring [J]. IEEE Transactions on instrumentation and measurement, 2004, 53(1): 24-30.
YIN S Y, ZHANG Z Z, LI Y, et al. Faraday Angle and Accuracy Measurement of Magneto-Optic Current Transmission Based on New Telluride Glass [J]. IEEE Photonics Journal, 2022, 14(5): 1-6.
