A Low-Frequency Magnetic Field Sensor Based on Fiber Bragg Gratings

Chen, J.; Huang, Siyu; Lin, Cheng-Yu; Liu, Wen‐Fung

doi:10.3390/photonics9020102

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…For instance, MFS based on FBG and F‐P interferometer embedded with MF has been proposed [116]. In the research of Chen et al., the achieved sensitivity of low‐frequency MFS based on FBG was 8.16 pm/Gs with a resolution of 3 Gs [76]. In another work on fibre‐optic MFS, MF was used as a sensitive medium.…”

Section: Emerging Opportunities For Optical Magnetic Field Sensors Ba...mentioning

confidence: 99%

Optical magnetic field sensors based on nanodielectrics: From biomedicine to IoT‐based energy internet

Zhang

Meng

Han

et al. 2023

IET Nanodielectrics

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Smart sensors with excellent performance are accelerating the development of biomedicine and the Internet of Energy. Nanodielectrics exhibit unique electrical and mechanical properties. As the predominant materials in optical magnetic field sensor (MFS), they can not only exert the anti‐interference of optical sensing, but improve the measuring characteristics of optical sensors. For instance, the optical fibre quantum probe for the magnetic field can obtain a higher sensitivity of 0.57 nT/Hz1/2, while the measurement range of the sensor that uses Co‐doped ZnO nanorods as cladding is 17–180 mT. Here, these exciting recent achievements in the realm of optical sensing methods for magnetic field detection are reviewed, with a focus on nanodielectrics, which provide an emerging opportunity to achieve higher sensitivity and a wider measurement range of MFS.

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Section: Emerging Opportunities For Optical Magnetic Field Sensors Ba...mentioning

confidence: 99%

Optical magnetic field sensors based on nanodielectrics: From biomedicine to IoT‐based energy internet

Zhang

Meng

Han

et al. 2023

IET Nanodielectrics

View full text Add to dashboard Cite

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“…An alternative method involves the integration of a ber Bragg grating (FBG) with a magnetostrictive cantilever. The deformation of the FBG modi es its re ection spectrum, which can be related to the magnetic signal 11,12 .…”

Section: Introductionmentioning

confidence: 99%

Electret Integrated Magnetic Field Sensor Based on Magnetostrictive Polymer Composite with nT Resolution

Zimoch,

Schröder,

Elzenheimer

et al. 2024

Preprint

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The pursuit for advanced magnetoelectric field sensors has gained momentum, driven by applications in various fields, ranging from biomedical applications to soft robotics and the automotive sector. In this context, a capacitive read-out based magnetostrictive polymer composite (MPC) sensor element is introduced, offering a new perspective on magnetic field detection. The sensor element's unique feature is the possibility to independently tailor its mechanical and magnetic properties. When compared to other composite-based magnetic field sensors, the limit of detection (LoD) is three orders of magnitude lower (95.6 nT/√Hz at a resonance frequency of 160.5 Hz). In contrast to other electret-based ME sensors, the LoD is reduced by a factor of 20. To the best of the authors' knowledge, this work marks the first comprehensive attempt to characterize a sensor magnetically, aligning with the thorough assessment standards of ME sensors. This study aims to narrow the disparity between established magnetic field sensors, featuring consistent characterization protocols, and the novel MPC sensors, which often undergo limited magnetic characterization as part of their evaluation. The presented sensor, built from readily available materials, offers a versatile and tuneable platform for magnetic field detection, and ongoing research aims to unlock its full potential in diverse applications.

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