Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jul 6, 2026

Label-free Single Molecule Detection Using Microtoroid Optical Resonators
08:53

Label-free Single Molecule Detection Using Microtoroid Optical Resonators

Published on: December 29, 2015

Micromachined optical fiber current sensor.

R L Heredero1, R Fernández de Caleya, H Guerrero

  • 1Laboratorio de Instrumentacin Espacial, División de Ciencias del Espacio, Instituto Nacional de Técnica Aeroespacial ~INTA!, 28850 Torrejón de Ardoz, Madrid, Spain. lopezhr@inta.es

Applied Optics
|March 8, 2008
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Evidence for Atomic-Scale Vibron-Mediated Electron Bunching.

Physical review letters·2026
Same author

Fast and Continuous Detection of Single Microwave Photons via Photoassisted Quasiparticle Tunneling to a Superconducting Island.

Physical review letters·2026
Same author

Blastic Plasmacytoid Dendritic Cell Neoplasm: A Single-Center Experience. Clinical Characterization, Mutational Landscape, and Clinical Outcome of Patients Undergoing Hematopoietic Stem Cell Transplantation Intensive Therapy.

Actas dermo-sifiliograficas·2024
Same author

Efficient Microwave Photon-to-Electron Conversion in a High-Impedance Quantum Circuit.

Physical review letters·2024
Same author

Blastic Plasmacytoid Dendritic Cell Neoplasm: A Single-Center Experience. Clinical Characterization, Mutational Landscape, and Clinical Outcome of Patients Undergoing Hematopoietic Stem Cell Transplantation Intensive Therapy.

Actas dermo-sifiliograficas·2024
Same author

Therapy-related myelodysplastic syndromes deserve specific diagnostic sub-classification and risk-stratification-an approach to classification of patients with t-MDS.

Leukemia·2020
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

This study introduces a novel micromachined optical fiber current sensor. It accurately measures electrical currents up to 70 A using a vibrating magnet and optical interferometry.

Area of Science:

  • Optical Fiber Sensors
  • Microsystems Engineering
  • Magnetics

Background:

  • Accurate electrical current measurement is crucial for power systems.
  • Existing sensors may face limitations in sensitivity, size, or cost.
  • Developing novel sensing principles is essential for advanced applications.

Purpose of the Study:

  • To develop and characterize a micromachined optical fiber sensor for measuring alternating current (AC).
  • To investigate the relationship between electrical current and magnet displacement.
  • To determine the sensor's measurement range and minimum detectable intensity.

Main Methods:

  • Fabrication of a silicon membrane with an integrated permanent magnet (NdFeB alloy).
  • Utilizing white-light interferometry with a fiber optic Fabry-Perot microcavity to measure magnet displacement.

More Related Videos

Design and Fabrication of an Optical Fiber Made of Water
08:06

Design and Fabrication of an Optical Fiber Made of Water

Published on: November 8, 2018

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

Related Experiment Videos

Last Updated: Jul 6, 2026

Label-free Single Molecule Detection Using Microtoroid Optical Resonators
08:53

Label-free Single Molecule Detection Using Microtoroid Optical Resonators

Published on: December 29, 2015

Design and Fabrication of an Optical Fiber Made of Water
08:06

Design and Fabrication of an Optical Fiber Made of Water

Published on: November 8, 2018

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

  • Analyzing the linear response between electrical current and displacement.

    • Main Results:

    • Demonstrated a linear relationship between electrical current and magnet displacement.
    • Achieved a measurement range of 0-70 Amperes (A).
    • Obtained a minimum detectable intensity of 20 milliamperes (mA) at a distance of 5 mm.

    Conclusions:

    • The micromachined optical fiber sensor offers a sensitive and linear method for AC current measurement.
    • The sensor's performance is dependent on the distance from the electrical power line.
    • This technology shows potential for non-contact current sensing applications.