Optical fibre magnetic field sensors using ceramic magnetostrictive jackets

Sedlar, M.; Matejec, Vlastimil; Paulicka, Ivan

doi:10.1016/s0924-4247(00)00403-9

Cited by 43 publications

(23 citation statements)

References 10 publications

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“…Among ferrites, the cobaltbased retains the highest magnetostriction levels, which makes them promising candidates for applications in magnetomechanical and magnetoelectric sensors 5,6 . Ni-based ferrites also have interesting magnetostrictive properties for sensors applications 7,8 . However, for some applications in magnetomechanical sensors, the material must have adequate mechanical strength, which requires strict control of the microstructure.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, Magnetic, and Microstructural Characterization of Ni0.9Co0.1Fe2O4 Produced by the Ceramic Method

et al. 2018

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Ni-Co ferrites, especially the ones with lower cobalt fractions, are candidate materials for applications in magnetomechanical sensors and electromagnetic wave absorbers. This work studied the microstructure, magnetostriction, flexural strength, and complex magnetic permeability of Ni 0.9 Co 0.1 Fe 2 O 4 , presenting data that weren't covered by previous literature on this composition. It was found that sieving the calcined powder before the forming operation increased the flexural strength of the ceramic. The Ni-Co ferrite had a saturation magnetostriction of 36ppm. The real part of the complex magnetic permeability varied between 2.2-2.3 in frequencies from 100MHz to 1GHz. In frequencies higher than 1GHz, µ' decreased sharply and reached 1 at 3.9GHz. It was found that the grinding media provided a small fraction of Al to the ferrite composition, which apparently affected the complex magnetic permeability of the material but the magnetostriction results were very close to Al-free Ni-Co ferrites with similar composition.

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Section: Introductionmentioning

confidence: 99%

Mechanical, Magnetic, and Microstructural Characterization of Ni0.9Co0.1Fe2O4 Produced by the Ceramic Method

et al. 2018

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“…Parameters like composition, method of synthesis, substitution of different cations, annealing time and temperature, sintered density, porosity and crystallite size alter the properties of material [10][11] . Ferrites materials are comparatively economical for preparation of various types of sensors to probe, such as magnetic field 12 , current 13 , gas concentrations [14][15] , heat treatment 16 and mechanical stresses 17 , and. Ferrite temperature sensors used in biochemical applications [18][19][20][21] .…”

Section: Introductionmentioning

confidence: 99%

Influence of pH Variation on Structural and Magnetic Properties of Ni-Zn Ferrite Nanoparticles Synthesized by Auto Combustion Method

Tyagi¹,

Ahlawat²

2017

Orient. J. Chem

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Nickel zinc ferrite (Ni 0.5 Zn 0.5 Fe 2 O 4 ) nanoparticles were synthesized via solution auto ignition combustion method. The ferrite samples were synthesized with different pH values 3, 5, 7 and 8. The as synthesized samples were calcined at 800 o C for 4 hours. These synthesized nanopowder have been characterized by XRD, SEM and VSM and effect of pH value on the properties of the ferrite samples were studied. XRD pattern confirmed that samples were crystalline in nature. Crystallite size of ferrite powder increased with increase in basic nature of ferrite nanopaticles. Crystallite size of sample was found 24.86nm, 28.10nm, 33.51nm and 39.61nm at pH values 3, 5, 7 and 8 respectively. The magnetization of samples prepared at different pH values 3, 5, 7 and 8 were found 55.490e.m.u./g, 61.420e.m.u./g, 65.541e.m.u./g and 66.512e.m.u./g respectively.

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“…Till now, many possibilities have been proposed to generate the fiber magnetic sensor, such as the Mach-Zehnder interferometer in the open-loop mode [7], metallic glass with the detection technique utilizing a square-wave magnetic field modulation [8], and fiber optic Michelson interferometer [9].…”

Section: Introductionmentioning

confidence: 99%

Design of fiber magnetic field sensor based on fiber Bragg grating Fabry-Perot cavity ring-down spectroscopy

Chen

2015

Photonic Sens

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A novel fiber magnetic sensor based on the fiber Bragg grating Fabry-Perot (FBG-FP) cavity ring-down technique with pulse laser injection is proposed and demonstrated theoretically. A general expression of the intensity of the output electric field is derived, and the effect of the external magnetic field on the ring-down time is discussed. The results show that the output light intensity and the ring-down time of the FBG-FP cavity are in the inverse proportion to the magnitude of the external magnetic field. Our results demonstrate the new concept of the fiber magnetic sensor with the FBG-FP cavity ring-down spectroscopy and the technical feasibility.

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Optical fibre magnetic field sensors using ceramic magnetostrictive jackets

Cited by 43 publications

References 10 publications

Mechanical, Magnetic, and Microstructural Characterization of Ni0.9Co0.1Fe2O4 Produced by the Ceramic Method

Mechanical, Magnetic, and Microstructural Characterization of Ni0.9Co0.1Fe2O4 Produced by the Ceramic Method

Influence of pH Variation on Structural and Magnetic Properties of Ni-Zn Ferrite Nanoparticles Synthesized by Auto Combustion Method

Design of fiber magnetic field sensor based on fiber Bragg grating Fabry-Perot cavity ring-down spectroscopy

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