A novel design of the sensor head for avoiding the influence of the reflection phase shift in optical current transducer

Wan, Xia; Zhao, Jianlin; Wang, Meirong

doi:10.1016/j.optlaseng.2009.10.013

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…However, the maximum detectable current intensity can be very large. This is because the magnetic field at the field point surrounding the current-carrying wire is dependent on the distance away from the wire, as indicated in (3). Increasing the mounting distance of the proposed sensor can decrease the field strength at the sensor point.…”

Section: B the Property Of The System In Sensing Alternating Current 1) Decision Of The Mounting Distance Of The Sensormentioning

confidence: 96%

“…Optical fiber current sensors have been widely applied in many industrial areas owing to their advantages such as lightweight, compact size, immunity to electromagnetic interference, and good electric insulation [1,2]. Faraday effects based all-fiber current sensors are among the most typical ones [3,4]. They are based on the Faraday rotation of the polarization direction as the light in the fiber propagates across the magnetic field generated by the applied current.…”

Section: Introductionmentioning

confidence: 99%

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An all-fiber current sensor based on magnetic fluid clad microfiber knot resonator

et al. 2014

International Journal on Smart Sensing and Intelligent Systems

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A novel optical current sensor based on microfiber knot resonator (MKR) with magnetic fluid (MF) as cladding is proposed and demonstrated in this paper. The operating principles, package technique and mounting method of the proposed sensor are introduced in detail. Moreover, the performances of the proposed sensor are demonstrated experimentally by detecting sinusoidal current with 50Hz and pulse current signals with rising time of 2.5μs respectively. The results have shown that the relationship between the sensor responding and the applied current intensity is approximately linear and the minimal detectable current is 10 Amps with SNR (Signal-to-noise ratio) as 3.

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Section: B the Property Of The System In Sensing Alternating Current 1) Decision Of The Mounting Distance Of The Sensormentioning

confidence: 96%