Design and Development of a Low-Cost Optical Current Sensor

Zubía, Joseba; Casado, Luciano; Aldabaldetreku, Gotzon; Montero, Alfonso; Zubia, Eneko; Durana, Gaizka

doi:10.3390/s131013584

Cited by 56 publications

(18 citation statements)

References 19 publications

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“…Такие системы обеспечивают точные измерения в большом диапазоне токов, развязку по электропитанию с измеряемыми системами, позволяют обрабатывать сигнал в режиме реального времени, результаты измерений обладают достоверностью и повторяемостью. В настоящее время используются оптоволоконные датчики на основе эффекта Фарадея [2,3], представляющие собой солиноиды стандартных одномодовых волокон, подключенных по рециркуляционной схеме [4,5], по схеме интерферометра Саньяка [6]; волокно, легированное квантовыми точкам CdSe для повышения чувствительности; в качестве датчиков применяются специальные магнито-оптические материалы и пластиковые оптические волноводы для передачи оптических сигналов [8][9][10] Целью работы являлась разработка принципиальной схемы распределенного сенсора силы тока на основе анализа частотных характеристик ВРМБ, создание математической модели сенсора для демонстрации его работы и расчет основных параметров сенсора.…”

Section: Introductionunclassified

Simulation of Distributed Current Sensor Based on Optical Fiber Deformation

Янукович

Poliakov

2019

Prib. metody izmer.

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Due to the development of automation and control systems, methods and devices for measuring of electric current large values are of great interest. The aim of the work was to develop a schematic diagram of a distributed current strength sensor based on the Brillouin optical frequency domain analysis; to create a mathematical model of the sensor to demonstrate its work and to calculate the basic parameters of the sensor. To provide the measurement optical fiber with conductive coating is used. Between the current bus, where current is measured, and conductive coating the Ampere force arises. Strain occurs in optical fiber due to this force. Stimulated Brillouin scattering has the strain dependent characteristic frequency. Shift of the characteristic frequency allows to measure current in the bus. To measure the characteristic frequency and the location of its shift Brillouin optical frequency domain analysis is used.The mathematical model of sensor operation based on tree-wave model of stimulated Brillouin scattering is demonstrated. This model allows calculating intensity of optical signal in the fiber in dependence of characteristic frequency shift. Brillouin optical frequency domain analysis uses inverse Fourier transform to obtain pulse response.A schematic diagram of a distributed current sensor based on the method of Brillouin optical frequency domain analysis is presented. An a priori estimate of parameters of the measuring system was carried out on the basis of the mathematical model of stimulated Brillouing scattering in an optical fiber. The spatial resolution of the sensor when determining the length and location of fiber sections was 0.06 m. The resolution of the sensor was 0.22 kA, the maximum value of the current strength was 25 kA. Dependence of the sensor operation at different powers of the laser used was investigated. The refractive index change influence on the result of measurements was estimated.

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Section: Introductionunclassified

Simulation of Distributed Current Sensor Based on Optical Fiber Deformation

Янукович

Poliakov

2019

Prib. metody izmer.

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“…In the visible region, Chakraborty and Bera (2008) developed a current sensor based on a null detection technique and Chakraborty and Kumari (2015) designed a magnetic field sensor using a TDG crystal as an MO sensor. A lowcost optical current sensor was designed and demonstrated by Zubia et al (2013). The characterization of applied tensile stress is studied with in situ magnetic domain imaging and their dynamic behaviors by using magneto-optical Kerr effect (MOKE) microscopy assisted with magneto-optical indicator film (MOIF) (Qiu et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Based on a literature survey it is found that MO sensors are being used in many industrial applications, such as measurement of displacement (Bera and Chakraborty, 2011), magnetic field (Wolfe et al, 1992;Chakraborty and Kumari, 2015), current (Chakraborty and Bera, 2008;Zubia et al, 2013), temperature, and vibration. Several studies are reporting on MO material development and its properties (Munin et al, 1992;Chen et al, 2016a, b;Booth and White, 1984;Chakraborty and Bera, 2008;Chakraborty and Kumari, 2015).…”

Section: Introductionmentioning

confidence: 99%

Study of different magneto-optic materials for current sensing applications

Kumari

Chakraborty

2018

J. Sens. Sens. Syst.

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Abstract. This article discusses the properties of different diamagnetic and paramagnetic materials for a basic current/magnetic field sensor system set up with different relative orientations of analyzers and polarizers. The paper analyzes linearity ranges of different materials and their sensitivity for different wavelengths. Terbium doped glass (TDG), terbium gallium garnet (TGG), doped TGG and dense flint glass materials are used for analysis based on Faraday's rotation principle. TGG shows high Faraday rotation, temperature stability and high optical quality. Three ranges of the magnetic field have been chosen for performance analysis. The study reveals that doping of praseodymium (Pr3+) on TGG exhibits a better response at 532 nm as well as 1064 nm wavelengths than TGG. At 632.8 nm wavelength, cerium (Ce3+) doped terbium aluminum garnet (TAG) ceramic exhibits better resolution than others. The study has been done for performance analysis of different MO sensors applicable for measurement of various process parameters like current, displacement, and magnetic field.

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“…Fiber optic magnetic field sensors (and current sensors by extension—FOCS) have been under investigation as an important new technology suitable for industrial application at voltage levels ranging from low voltages to hundreds of kilovolts [1,2,3,4]. Advances in electronic processing and the abundance of fiber types ease manufacture and offer suitable connectivity options as required by industry.…”

Section: Introductionmentioning

confidence: 99%

Compensation of Verdet Constant Temperature Dependence by Crystal Core Temperature Measurement

Petričević

Mihailović

2016

Sensors

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Compensation of the temperature dependence of the Verdet constant in a polarimetric extrinsic Faraday sensor is of major importance for applying the magneto-optical effect to AC current measurements and magnetic field sensing. This paper presents a method for compensating the temperature effect on the Faraday rotation in a Bi12GeO20 crystal by sensing its optical activity effect on the polarization of a light beam. The method measures the temperature of the same volume of crystal that effects the beam polarization in a magnetic field or current sensing process. This eliminates the effect of temperature difference found in other indirect temperature compensation methods, thus allowing more accurate temperature compensation for the temperature dependence of the Verdet constant. The method does not require additional changes to an existing Δ/Σ configuration and is thus applicable for improving the performance of existing sensing devices.

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Design and Development of a Low-Cost Optical Current Sensor

Cited by 56 publications

References 19 publications

Simulation of Distributed Current Sensor Based on Optical Fiber Deformation

Simulation of Distributed Current Sensor Based on Optical Fiber Deformation

Study of different magneto-optic materials for current sensing applications

Compensation of Verdet Constant Temperature Dependence by Crystal Core Temperature Measurement

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