A magnetic field sensor based on a dual S-tapered multimode fiber interferometer

Zhang, Xu; Liu, Bo; Zhang, Hao; Wu, Jixuan; Song, Binbin; Wang, Chao

doi:10.1088/1361-6501/aac00e

Cited by 19 publications

(5 citation statements)

References 40 publications

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“…In addition, because of the disorderly distribution of these nanoparticles, the magnetic torque between particles can offset itself, so the overall MF shows no magnetism. However, as illustrated in Figure 2b,c, with the emergence of the magnetic torque, the MF presents a different optical property, i.e., magnetic nanoparticle chains are formed along the magnetic field direction, which will change the light absorption, scattering coefficients, and refractive index [32][33][34][35]. The appearance of nanoparticle chains changes the magnetic fluid into an anisotropic material, i.e., the transmission loss of light in different directions is different.…”

Section: Methodsmentioning

confidence: 99%

2D-Vector Magnetic Sensing Based on Ring-Shaped Fiber-Optic Structure Coated with Magnetic Fluid

Lin,

Zhu,

Zhao

et al. 2023

Micromachines

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In this work, a novel fiber-optic sensor for 2D magnetic sensing is explored based on nanostructured magnetic fluid. The fiber-optic sensor comprises a ring-shaped fiber structure that is coated with magnetic fluid. The unique magneto-optical characteristic of the nanostructured magnetic fluid enables the fiber-optic structure to detect magnetic fields. By utilizing the 3D Monte Carlo method, the magneto-optical characteristic induced by the nanostructure changes in the magnetic fluid was analyzed. The sensor can realize 2D vector magnetic sensing by intensity demodulation and achieves a sensitivity of 2.402 dB/mT. The proposed fiber optic sensor helps in developing a high-sensitivity 2D vector magnetic field sensor, which has potential applications in the fields of navigation, electrical power systems, and biological detection.

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Section: Methodsmentioning

confidence: 99%

2D-Vector Magnetic Sensing Based on Ring-Shaped Fiber-Optic Structure Coated with Magnetic Fluid

Lin,

Zhu,

Zhao

et al. 2023

Micromachines

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“…Multi-walled carbon nanotubes (CNT) [69][70][71][72][73][74][75][76][77][78][79][80][81] are widely used in sensor applications and can be uniformly distributed on piezoelectric microspheres. Based on the flexible strain sensor of three-dimensional carbon nanotube (CNT) foam-filled nanocomposite, Hao et al [82].…”

Section: Multi-walled Carbon Nanotubes (Cnts)mentioning

confidence: 99%

Wearable Electrochemical Sensors Based on Nanomaterials for Healthcare Applications

Tong

Ligetu

et al. 2022

Electroanalysis

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Wearable electrochemical sensors have attracted great interest in health care applications because of their flexibility, biocompatibility, low cost and light weight. This review briefly focuses on the main concepts and methods that are related to the application of nanoparticles (NPs) in wearable electrochemical sensors. Moreover, attempts to bring together different perspectives and terms that are commonly used in NPs‐based wearable electrochemical sensors along with the introduction and discussion of common manufacturing methods and recent achievements. In the end, future challenges and prospects are also discussed on the development of wearable electrochemical sensors based on nanoparticles.

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“…Optical fiber sensors have attracted more and more attention due to their inherent advantages such as simple structure, easy implementation, high sensitivity, chemical corrosion resistance, and are not easily affected by electromagnetic interference [1]. Furthermore, optical fiber sensors have been successfully used in monitoring physical quantities, such as temperature [2], strain [3], pressure [4], rotation [5], magnetic field [6], refractive index (RI) [7], relative humidity [8], and curvature [9][10][11][12][13][14]. The bending curvature of the structure is an important parameter for measuring the deformation of the object, and it is also an important optical parameter for optical fiber sensor.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Measurement of Curvature and Temperature Based on a Simple Cascaded Fiber Interferometer

Wang¹,

Lu²,

Liu³

2022

PIER M

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An optical fiber sensor based on thin-core fiber (TCF) and no-core fiber (NCF) interference structures is presented and experimentally demonstrated to measure the curvature and temperature. The fabrication process of the sensor is simple and convenient, and the sensing part is formed by cascading a TCF and an NCF between two single-mode fibers. The dips at resonant wavelengths are generated in the optical transmission spectrum owing to mode interference. The experimental results indicate that an optical curvature sensitivity of −5.76 nm/m −1 is achieved in the linear range of 0.9895-3.2817 m −1 and that a temperature sensitivity of 0.18 nm/ • C is obtained in the temperature range of 25-55 • C. Additionally, the cross sensitivity problem is solved using the coefficient matrix measurement method, and the cross-sensitivity is as low as 0.0312 m −1 / • C. Therefore, the sensor exhibits a highly reproducible technique and low cross sensitivity, which has a wide range of application prospects in the accurate measurement of mechanical arms and structural health monitoring.

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A magnetic field sensor based on a dual S-tapered multimode fiber interferometer

Cited by 19 publications

References 40 publications

2D-Vector Magnetic Sensing Based on Ring-Shaped Fiber-Optic Structure Coated with Magnetic Fluid

2D-Vector Magnetic Sensing Based on Ring-Shaped Fiber-Optic Structure Coated with Magnetic Fluid

Wearable Electrochemical Sensors Based on Nanomaterials for Healthcare Applications

Simultaneous Measurement of Curvature and Temperature Based on a Simple Cascaded Fiber Interferometer

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