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 Concept Videos

Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

63
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short...
63

You might also read

Related Articles

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

Sort by
Same author

Effect of electron beam irradiation on the property of oat and barley proteins and their interaction with major flavor compounds.

Food chemistry·2026
Same author

Engineering surface functional groups of MXenes for advanced catalysis and energy technology.

Nanoscale horizons·2026
Same author

Ciprofol-Esketamine Versus Ciprofol-Remifentanil in Hysteroscopic Endometrial Polypectomy: A Randomized Controlled Trial.

Medical science monitor : international medical journal of experimental and clinical research·2026
Same author

Framework-Densified Isotropic Cellulose Ionogel for Omnidirectional Flexible Sensing.

Biomacromolecules·2026
Same author

Assessing social rank in male mice using the multi-round warm spot test.

Physiology & behavior·2026
Same author

Global emergence, evolution and international dissemination of the ST145 Klebsiella oxytoca lineage.

npj antimicrobials and resistance·2026

Related Experiment Video

Updated: Jul 24, 2025

Author Spotlight: Epimysial Electrode Fabrication and Testing in ACL Injury Studies
04:48

Author Spotlight: Epimysial Electrode Fabrication and Testing in ACL Injury Studies

Published on: April 12, 2024

498

Development of DMPS-EMAT for Long-Distance Monitoring of Broken Rail.

Wujun Guo1, Zhiyang Yu2, Hsiang-Chen Chui1

  • 1School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116000, China.

Sensors (Basel, Switzerland)
|July 8, 2023
PubMed
Summary

This study introduces a novel dual-magnet phase-stacked EMAT for improved rail monitoring. The new design enhances the A0 wave amplitude by 1.35 times for more effective broken track detection.

Keywords:
EMATconstructive interferencesignal enhancementsingle-mode A0 wave

More Related Videos

Simultaneous Scalp Electroencephalography EEG, Electromyography EMG, and Whole-body Segmental Inertial Recording for Multi-modal Neural Decoding
11:25

Simultaneous Scalp Electroencephalography EEG, Electromyography EMG, and Whole-body Segmental Inertial Recording for Multi-modal Neural Decoding

Published on: July 26, 2013

43.4K
A Real-Time Wearable Electromyography Measurement System for Small Animals
05:00

A Real-Time Wearable Electromyography Measurement System for Small Animals

Published on: November 15, 2024

748

Related Experiment Videos

Last Updated: Jul 24, 2025

Author Spotlight: Epimysial Electrode Fabrication and Testing in ACL Injury Studies
04:48

Author Spotlight: Epimysial Electrode Fabrication and Testing in ACL Injury Studies

Published on: April 12, 2024

498
Simultaneous Scalp Electroencephalography EEG, Electromyography EMG, and Whole-body Segmental Inertial Recording for Multi-modal Neural Decoding
11:25

Simultaneous Scalp Electroencephalography EEG, Electromyography EMG, and Whole-body Segmental Inertial Recording for Multi-modal Neural Decoding

Published on: July 26, 2013

43.4K
A Real-Time Wearable Electromyography Measurement System for Small Animals
05:00

A Real-Time Wearable Electromyography Measurement System for Small Animals

Published on: November 15, 2024

748

Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Nondestructive Testing

Background:

  • Real-time rail monitoring is vital for railway safety and economic development.
  • Existing track circuit monitoring systems are complex and costly.
  • Electromagnetic ultrasonic transducers (EMATs) offer non-contact detection but suffer from low efficiency and complex modes for long-distance applications.

Purpose of the Study:

  • To develop a novel EMAT design for efficient, long-distance rail monitoring.
  • To address the limitations of traditional EMATs in terms of conversion efficiency and mode complexity.
  • To enhance the detection of broken tracks through improved wave excitation.

Main Methods:

  • Introduced a dual-magnet phase-stacked EMAT (DMPS-EMAT) with specific magnet and coil arrangements.
  • Analyzed rail waist dispersion curves to determine optimal monitoring frequency (35 kHz).
  • Optimized magnet and coil positioning to achieve constructive interference of the A0 wave.

Main Results:

  • The DMPS-EMAT design successfully excited a single-mode A0 wave.
  • Achieved a 1.35-fold increase in A0 wave amplitude compared to traditional methods.
  • Demonstrated effective constructive interference for enhanced wave propagation.

Conclusions:

  • The novel DMPS-EMAT design significantly improves A0 wave excitation for rail monitoring.
  • This technology offers a more efficient and effective solution for detecting rail defects.
  • The findings support the use of DMPS-EMAT for enhanced railway safety and integrity.