Temperature compensation for optical current sensors

Madden, W.I.; Michie, W. Craig; Cruden, Andrew; Niewczas, Paweł; McDonald, James R.; Andonović, Ivan

doi:10.1117/1.602222

Cited by 47 publications

(9 citation statements)

References 12 publications

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“…As in the all-fiber optic sensors, bulk-optic ones also have temperature dependency of the Verdet constant. A solution was measuring the temperature and compensating its effect by introducing a correction factor that depends on the temperature [39].…”

Section: Bulk-optic Current Sensorsmentioning

confidence: 99%

Optical Current Sensors for High Power Systems: A Review

et al. 2012

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Abstract:The intrinsic advantages of optical sensor technology are very appealing for high voltage applications and can become a valuable asset in a new generation of smart grids. In this paper the authors present a review of optical sensors technologies for electrical current metering in high voltage applications. A brief historical overview is given together with a more detailed focus on recent developments. Technologies addressed include all fiber sensors, bulk magneto-optical sensors, piezoelectric transducers, magnetic force sensors and hybrid sensors. The physical principles and main advantages and disadvantages are discussed. Configurations and strategies to overcome common problems, such as interference from external currents and magnetic fields induced linear birefringence and others are discussed. The state-of-the-art is presented including commercial available systems.

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Section: Bulk-optic Current Sensorsmentioning

confidence: 99%

Optical Current Sensors for High Power Systems: A Review

et al. 2012

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“…For these reasons, there exists an appropriate compromise to the selection of magneto-optic medium which is a paramagnetic material. From the view of [8,9], we can know a linear relationship between temperature and Verdet constant, given as…”

Section: The Temperature Dependence Of the Verdet Constantmentioning

confidence: 99%

Temperature Compensation in Full Optical Fiber Current Transformer Using Signal Processing

Yang

et al. 2013

2013 Sixth International Symposium on Computational Intelligence and Design

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Error caused by temperature change is one of the major reasons for restricting the promotion of Full Optical Fiber Current Transformer (FOCT) at present. This article analyzes how the change of temperature makes impact on the parameters of optical devices, such as the original phase of quarter-wave plate and the Verdet constant of the fiber. After the experimental data are sampled in a temperature range from +20 to +70 , the relational model of error and temperature can be set up by adopting least-square method. After compensation based on this model, error could be decreased; meanwhile the precision of FOCT could be improved. Indeed, the experimental results verify that the accuracy of FOCT can be improved four times, compared with the original output without compensation. This method of compensation is quite effective to reduce the temperature influences on the FOCT to improve the accuracy.

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“…All-fiber optic current sensors (AFCSs) are mainly based on the Faraday effects in the coil of an optical fiber around a current conductor and have attracted significant interest in recent years owing to their immunity to compact design, fast response time, electromagnetic interference, and so on [ 1 , 2 , 3 , 4 , 5 , 6 ]. However, a disadvantage of the AFCS is its limited sensitivity to the magnetic field.…”

Section: Introductionmentioning

confidence: 99%

“…Sensitivity is decided by the Verdet constant of silica material itself and linear birefringence induced by bending and can be enhanced by the use of either a very long fiber or a doped fiber. However, these methods can increase the size, are high in cost, and are more sensitive to temperature and the introduction of birefringence [ 5 , 6 ]. Therefore, fiber loops utilizing ring-down architecture have wide applications in many aspects, such as sensors, lasers, and so on [ 7 , 8 , 9 , 10 ] and have advantages of better flexibility, lower cost, and stronger extensibility [ 7 , 8 , 9 , 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Structure Multichannel All-Fiber Current Sensor

Jiang

Zhang

Qiu

2017

Sensors

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We have experimentally developed a hybrid-structure multi-channel all-fiber current sensor with ordinary silica fiber using fiber loop architecture. According to the rationale of time division multiplexing, the sensor combines parallel and serial structures. The purpose of the hybrid-structure multi-channel all-fiber current sensor is to get more information from the different measured points simultaneously. In addition, the hybrid-structure fiber current sensor exhibited a good linear response for each channel. A three-channel experiment was performed in the study and showed that the system could detect different current positions. Each channel could individually detect the current and needed a separate calibration system. Furthermore, the three channels will not affect each other.

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Temperature compensation for optical current sensors

Cited by 47 publications

References 12 publications

Optical Current Sensors for High Power Systems: A Review

Optical Current Sensors for High Power Systems: A Review

Temperature Compensation in Full Optical Fiber Current Transformer Using Signal Processing

Hybrid Structure Multichannel All-Fiber Current Sensor

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