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 Videos

Multipoint laser vibrometer for modal analysis.

William N MacPherson1, Mark Reeves, David P Towers

  • 1School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, UK. w.n.macpherson@hw.ac.uk

Applied Optics
|May 22, 2007
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

Cellularized hydrogel-interfaced cantilever (CHIC) biosensors for monitoring 3D cell culture mechanical properties.

Biosensors & bioelectronics·2026
Same author

Predicting future dementia from routine clinical MRI and linked healthcare data.

Alzheimer's research & therapy·2026
Same author

Supporting recruitment into complex trials: An embedded qualitative process evaluation in the RADICAL trial of radiofrequency denervation for chronic low back pain.

British journal of pain·2026
Same author

Factors influencing the preferred method of fixation in total hip arthroplasty : a national survey of practice with consultant orthopaedic surgeons in the UK.

The bone & joint journal·2026
Same author

Medical thoracoscopy with talc poudrage and indwelling pleural catheter insertion versus medical thoracoscopy with talc poudrage alone for patients with symptomatic malignant pleural effusion (TACTIC): a randomised, controlled phase 3 trial.

The Lancet. Respiratory medicine·2026
Same author

Exploratory study of a long-term hospital-based cervical cancer screening program in a high HIV prevalence area of rural Malawi.

Gynecologic oncology reports·2025
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

Researchers developed a multipoint laser vibrometer for detailed vibration analysis. This system captures both amplitude and phase across 256 points, enabling precise mode shape recovery for engineering applications.

Area of Science:

  • Mechanical Engineering
  • Vibration Analysis
  • Experimental Physics

Background:

  • Multifrequency vibration analysis requires high-resolution measurement systems.
  • Understanding vibration necessitates capturing both amplitude and phase information.
  • Existing systems may lack the necessary spatial or temporal resolution for complex modes.

Purpose of the Study:

  • To present a novel multipoint laser vibrometer system.
  • To demonstrate its capability for high-resolution modal analysis.
  • To validate its performance in practical engineering scenarios.

Main Methods:

  • Development of a laser vibrometer capable of simultaneous measurement at 256 points along a line.
  • Operation at a temporal resolution of up to 80 kHz.

Related Experiment Videos

  • Application to modal analysis of a test object under transient excitation and a rotating disk brake.

    • Main Results:

    • Successful recovery of modal vibration data from a test object.
    • Demonstration of high spatial and temporal resolution in vibration measurements.
    • Successful application to measure vibrations on a squealing rotating disk brake.

    Conclusions:

    • The developed multipoint laser vibrometer provides essential spatial and temporal resolution for modal analysis.
    • The system effectively measures both vibration amplitude and phase.
    • It offers a practical solution for analyzing complex vibrations in engineering components.