Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Magnetic Damping

Magnetic Damping

Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Effect of Mechanical Polishing on Rice Flavor: Comparison and Exploration of Key Aroma Characteristics Components.

Foods (Basel, Switzerland)·2026

Same author

Combined inhibition of BETs and HDACs as a potential epigenetics-based therapy for malignant rhabdoid tumor.

Cell death & disease·2026

Same author

Arginine metabolism and the NF-ĸB pathway jointly regulate the airway inflammation in asthma mediated by ILC2s.

International immunopharmacology·2026

Same author

Debranching and OSA esterification of waxy maize starch: effects on nanoparticle properties and emulsion performance.

Food chemistry: X·2026

Same author

Lactylation-driven PDLIM1/PDAP1 axis remodels the inflammatory landscape of acute lung injury: mechanistic insights and precision intervention.

Frontiers in immunology·2026

Same author

Sanguinarine triggers apoptosis and ferroptosis synchronously by directly binding BiP in lung squamous cell carcinoma.

Chinese journal of natural medicines·2026

Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026

Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026

Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026

Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026

Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026

Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 19, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Single-crystal magneto-optic sensor with electrically adjustable sensitivity.

Changsheng Li¹, Toshihiko Yoshino

¹School of Instrumentation Science & Opto-Electronic Engineering, Beihang University, Beijing, China. c_li_eocm@yahoo.com

|August 4, 2012

Summary

This summary is machine-generated.

A new magneto-optic sensor uses electrical voltage to adjust its sensitivity for precise DC magnetic field or current measurements. This novel sensor offers real-time control over measurement ranges and temperature stability.

More Related Videos

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

Related Experiment Videos

Last Updated: May 19, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

Area of Science:

Optoelectronics
Magneto-optics
Sensor technology

Background:

Magneto-optic sensors are crucial for measuring magnetic fields and currents.
Existing sensors often lack adjustable sensitivity and real-time control.
Bismuth germanate crystals offer unique magneto-optic properties.

Purpose of the Study:

To propose and demonstrate a novel magneto-optic sensor with electrically adjustable sensitivity.
To investigate the real-time control of measurement sensitivity, temperature stability, and measurement ranges.
To enable precise measurement of DC magnetic fields and currents.

Main Methods:

Utilizing the approximate multiplication correlation between electro-optic phase retardation and Faraday rotation in a bismuth germanate crystal.
Applying a modulating voltage to the sensing crystal for real-time control.
Theoretical analysis and experimental validation using DC current measurement.

Main Results:

Demonstrated a magneto-optic sensor with electrically adjustable sensitivity.
Achieved real-time control over measurement sensitivity, temperature stability, and linear/monotonic ranges.
Successfully performed precise DC current measurements.

Conclusions:

The proposed magneto-optic sensor offers tunable sensitivity and enhanced stability.
This technology is suitable for precise DC magnetic field and current sensing applications.
Electrical control provides a significant advantage for real-time sensor adjustment.