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

Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

436
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
436
Relative Motion Analysis using Rotating Axes - Acceleration01:22

Relative Motion Analysis using Rotating Axes - Acceleration

314
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame. The absolute velocity of point B is determined by adding the absolute velocity of point A, the relative velocity of point B in the rotating frame, and the effects caused by the angular velocity within the rotating frame.
Time differentiation is...
314

You might also read

Related Articles

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

Sort by
Same author

Work-related Musculoskeletal Disorders Among Machinery Manufacturing Factory Workers in a Chinese Factory.

Safety and health at work·2026
Same author

CRISPR/Cas12a and nanocomposite-based electrochemical/ colorimetric parallel dual-channel aptasensor for highly sensitive LDL detection.

Nanomedicine : nanotechnology, biology, and medicine·2026
Same author

Intelligent optical pH sensing via metasurface spectral encoding and machine learning.

Applied optics·2026
Same author

Robust Rear-View Human Tracking for Robotic Visual Sensing: A Spatiotemporal Prediction and Multi-Modal Fusion Approach.

Sensors (Basel, Switzerland)·2026
Same author

The Ratio of S<sup>2-</sup>/SO<sub>4</sub><sup>2-</sup> Induces the Transference of Cadmium in Rhizosphere Soil, Soil Pore Water and Root Iron Plaque.

Life (Basel, Switzerland)·2026
Same author

Synchronous single-photon LiDAR ranging with up to two triggers per pulse cycle.

Optics express·2026

Related Experiment Video

Updated: May 16, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

6.2K

Single-layer metasurface enables a compact rotational speed detection system.

Jintao Liang, Siqi Li, LiFei Li

    Optics Letters
    |April 1, 2025
    PubMed
    Summary

    Researchers developed a compact system for measuring rotational speed using the rotational Doppler effect (RDE). This new method utilizes a single-layer metasurface, significantly reducing system complexity for enhanced metrology applications.

    More Related Videos

    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
    08:48

    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

    Published on: September 25, 2020

    5.7K
    Construction and Operation of a Light-driven Gold Nanorod Rotary Motor System
    09:48

    Construction and Operation of a Light-driven Gold Nanorod Rotary Motor System

    Published on: June 30, 2018

    8.8K

    Related Experiment Videos

    Last Updated: May 16, 2025

    Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
    09:33

    Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

    Published on: June 7, 2019

    6.2K
    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
    08:48

    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

    Published on: September 25, 2020

    5.7K
    Construction and Operation of a Light-driven Gold Nanorod Rotary Motor System
    09:48

    Construction and Operation of a Light-driven Gold Nanorod Rotary Motor System

    Published on: June 30, 2018

    8.8K

    Area of Science:

    • Optics and Photonics
    • Metrology
    • Applied Physics

    Background:

    • Rotational Doppler effect (RDE) detection offers rapid, non-contact measurement of rotational speed.
    • Existing RDE systems often employ bulky optical components like spatial light modulators (SLMs) or digital micromirror devices (DMDs), hindering miniaturization and integration.
    • The complexity of current RDE systems limits their practical application in space-constrained environments.

    Purpose of the Study:

    • To propose and demonstrate a novel, compact method for rotational speed detection based on RDE.
    • To overcome the limitations of bulky optical elements in conventional RDE systems.
    • To enable the development of miniature and integrated RDE-based metrology devices.

    Main Methods:

    • Generation of conjugate topological vortex beams using a single-layer metasurface.
    • Implementation of a compact RDE-based rotational speed detection system.
    • Analysis of frequency peak gaps in echo light signals for speed determination.

    Main Results:

    • Successful demonstration of the first compact RDE-based rotational speed detection system.
    • Accurate measurement of rotational speed by analyzing frequency peak gaps.
    • Achieved a maximum average relative measurement error of 0.812%.

    Conclusions:

    • The proposed single-layer metasurface method significantly simplifies RDE system design.
    • This advancement paves the way for miniature, integrated RDE metrology devices.
    • The technology is well-suited for applications with stringent size and payload limitations.