Faraday effect based optical fiber current sensor for tokamaks

Aerssens, Matthieu; Gusarov, A.; Brichard, B.; Massaut, V.; Mégret, Patrice; Wuilpart, Marc

doi:10.1109/animma.2011.6172868

Cited by 20 publications

(14 citation statements)

References 7 publications

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“…Since then, several researchers have proposed and demonstrated a number of practical applications using optical fiber current sensors (OFCS) [16,17,18]. One of the most popular configurations for current measurements is based on the magneto-optic effect, known as the Faraday rotation effect.…”

Section: Introductionmentioning

confidence: 99%

“…One of the most popular configurations for current measurements is based on the magneto-optic effect, known as the Faraday rotation effect. For example, in [16] the authors reported an OFCS based on the Faraday effect for the measurement of plasma current in tokamaks. In [17] a long-period fiber grating (LPFG) and a Faraday effect sensing element to measure electrical current in transmission lines are described, whereas in [18], the authors have proposed the use of the Faraday rotation effect using a LPFG inscribed on a polarization-maintaining fiber as a sensor demodulator.…”

Section: Introductionmentioning

confidence: 99%

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An Optical Fiber Sensor and Its Application in UAVs for Current Measurements

Delgado

Carvalho

Coelho

et al. 2016

Sensors

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In this paper, we propose and experimentally investigate an optical sensor based on a novel combination of a long-period fiber grating (LPFG) with a permanent magnet to measure electrical current in unmanned aerial vehicles (UAVs). The proposed device uses a neodymium magnet attached to the grating structure, which suffers from an electromagnetic force produced when the current flows in the wire of the UAV engine. Therefore, it causes deformation on the sensor and thus, different shifts occur in the resonant bands of the transmission spectrum of the LPFG. Finally, the results show that it is possible to monitor electrical current throughout the entire operating range of the UAV engine from 0 A to 10 A in an effective and practical way with good linearity, reliability and response time, which are desirable characteristics in electrical current sensing.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Optical Fiber Sensor and Its Application in UAVs for Current Measurements

Delgado

Carvalho

Coelho

et al. 2016

Sensors

View full text Add to dashboard Cite

show abstract

“…In an OCT, there are several sensitive parts and the desired accuracy is achieved only if all of the parts have higher accuracies than targeted accuracy [11], [12]. The interaction of these parts with each other and effects of external factors can cause several types of errors in OCTs [13].…”

Section: Introductionmentioning

confidence: 99%

Optical Current Transducers and Error Sources in Them: A Review

2015

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Optical current transducers are developed vastly in recent decades. For an accurate transducer achievement, different factors should be considered. This paper reviews the most important sources of errors in these devices. First, the main types of transducers are introduced. Afterwards, the effects of temperature and vibration on their operational performance are discussed. Then, the birefringence is addressed which is the main error source in the transducers. In each part, the proposed solutions in the papers are reviewed. Finally, the effect of nonideal optical parts on the measurement accuracy is discussed. The paper serves as a brief introduction to common errors in optical current transducers.Index Terms-Birefringence, Error decrement, Optical current transducers, Review.1530-437X (c)

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“…As B is related to the current I by Ampere's law, I can also be measured. This technique, called Fiber Optic Current Sensor, has been used in [199] to estimate the plasma current in Tore Supra Tokamak by wounding a fiber around the vacuum vessel. By adding polarization controller and polarization analyzer to the OTDR scheme of Figure 9, one obtains a polarization OTDR (POTDR) that can measure the light polarization state versus the length of the fiber.…”

Section: Magnetic Field Measurementmentioning

confidence: 99%

Nuclear instrumentation and measurement: a review based on the ANIMMA conferences

Giot

Vermeeren

Lyoussi

et al. 2017

EPJ Nuclear Sci. Technol.

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Abstract. The ANIMMA conferences offer a unique opportunity to discover research carried out in all fields of nuclear measurements and instrumentation with applications extending from fundamental physics to fission and fusion reactors, medical imaging, environmental protection and homeland security. After four successful editions of the Conference, it was decided to prepare a review based to a large extent but not exclusively on the papers presented during the first four editions of the conference. This review is organized according to the measurement methodologies: neutronic, photonic, thermal, acoustic and optical measurements, as well as medical imaging and specific challenges linked to data acquisition and electronic hardening. The paper describes the main challenges justifying research in these different areas, and summarizes the recent progress reported. It offers researchers and engineers a way to quickly and efficiently access knowledge in highly specialized areas.

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Faraday effect based optical fiber current sensor for tokamaks

Cited by 20 publications

References 7 publications

An Optical Fiber Sensor and Its Application in UAVs for Current Measurements

An Optical Fiber Sensor and Its Application in UAVs for Current Measurements

Optical Current Transducers and Error Sources in Them: A Review

Nuclear instrumentation and measurement: a review based on the ANIMMA conferences

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