&lt;title&gt;All-fiber optical sensor of electrical current with a SPUN fiber sensing element&lt;/title&gt;

Gubin, V. P.; Isaev, V. A.; Morshnev, S. K.; Sazonov, A. I.; Starostin, N. I.; Chamorovsky, Yu. K.; Oussov, Aleksey I; Otrokhov, S. Yu.

doi:10.1117/12.677697

Cited by 4 publications

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“…Therefore, how to suppress the scale factor error caused by the LB is a key issue to the design of the sensing coil of the FOCS. The current solutions to overcome the LB problem include the following: reducing the LB in the sensing coil by using the thermal annealing fiber coil [14,15] or flint glass fiber having low elastic-optic constant fiber [16]; adding the reciprocal circular birefringence (CB) to the sensing coil to suppress the effects of the LB, e.g., spun elliptically birefringent fiber [17,18], twisted fiber [19], or fiber alignment along a helical path [20,21]. In fact, winding the optical fiber in a helix path is a method producing the reciprocal CB by the geometric rotation effect.…”

Section: Introductionmentioning

confidence: 99%

Design principle for sensing coil of fiber-optic current sensor based on geometric rotation effect

Zhang

Wang

et al. 2012

Appl. Opt.

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The design principle exploiting the geometric rotation effect for the sensing coil of the fiber-optic current sensor (FOCS) on the basis of the polarization-rotated reflection interferometer is investigated. The sensing coil is formed by winding the low birefringence single-mode optical fiber in a toroidal spiral. The effects of the linear birefringence on the scale factor of the sensor can be suppressed with the reciprocal circular birefringence by appropriately designing the geometric parameters of the sensing coil. When the rated current is 1200 A(rms), the designed sensing coil can ensure the scale factor error of the sensor to satisfy the requirements of the 0.2 S class specified in IEC60044-8 over a temperature range from -40 °C to 60 °C.

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Section: Introductionmentioning

confidence: 99%

Design principle for sensing coil of fiber-optic current sensor based on geometric rotation effect

Zhang

Wang

et al. 2012

Appl. Opt.

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“…The small current that passes through a solenoid structure will generate a large magnetic field identical to a multi-turn optical fiber coil winding a conductor [13]. This scheme could realize milliampere current measurement [14]. However, it ignores the effects of optical fiber birefringence.…”

Section: Introductionmentioning

confidence: 99%

Research on Measurement Technology of Ship Leakage Current by All-Fiber Optic Current Sensor

Zhang

Chen³

et al. 2021

IEEE Access

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The all-fiber optic current sensor is applied to realize the measurement of the leakage current of ships. The analytical model is established in a two-dimensional cartesian coordinate system. The magnetic field distribution of the weak current of a single long straight wire and the leakage current formed by two wires are modeled and simulated, respectively. The correctness of the analytical model is verified by the finite element method. The conditions of the formula application of the all-fiber current sensor are studied. It is determined that no magnetic field mutation, sensing fiber coil closure, transmission fiber insensitive to the magnetic field, and stable operation of the Verdet constant are the prerequisites for the combination of the Faraday effect and Ampere loop theorem. Finally, the experiments are conducted to prove the feasibility of the proposed method. The sensor achieves an accuracy of 1% and good linearity when the leakage current is from 1mA to 99mA.

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Fiber-Optic Current Sensing Based on Reflective Polarization-Bias-Added Structure

Jiang,

Zheng

2024

IEEE Sensors J.

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<title>All-fiber optical sensor of electrical current with a SPUN fiber sensing element</title>

Cited by 4 publications

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Design principle for sensing coil of fiber-optic current sensor based on geometric rotation effect

Design principle for sensing coil of fiber-optic current sensor based on geometric rotation effect

Research on Measurement Technology of Ship Leakage Current by All-Fiber Optic Current Sensor

Fiber-Optic Current Sensing Based on Reflective Polarization-Bias-Added Structure

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