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

Optical encoder based on a nondiffractive beam.

Ariel Lutenberg1, Fernando Perez-Quintián, María A Rebollo

  • 1Laboratorio de Aplicaciones Opticas, Facultad de Ingeniería, Universidad de Buenos Aires,Avenue Paseo Colón 850, C1063ACU Buenos Aires, Argentina. alutenb@fi.uba.ar

Applied Optics
|May 2, 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

Full-field high-frequency surface vibration amplitude measurement from an out-of-focus and blurred speckle image.

Applied optics·2026
Same author

Evaluating empathy in GPT-4-generated vs. physician-written emergency department discharge letters.

Digital health·2025
Same author

Self-aligning CMOS photodetector sensor for application on an NDB-based optical encoder.

Applied optics·2019
Same author

Shunt-dependent hydrocephalus after aneurysmal subarachnoid hemorrhage.

Journal of neurosurgical sciences·2019
Same author

Performance of an optical encoder based on a nondiffractive beam implemented with a specific photodetection integrated circuit and a diffractive optical element.

Applied optics·2015
Same author

Far-field angular distribution of the mean scattered intensity from strong diffusers by means of a near-field intensity pattern.

Applied optics·2010
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 presents a novel optical encoder design using a nondiffractive beam for precise motion measurement. The new design demonstrates high tolerance to mechanical disturbances, offering a stable sinusoidal output signal.

Area of Science:

  • Optics and Photonics
  • Mechanical Engineering
  • Instrumentation

Background:

  • Optical encoders are crucial for motion control in industrial and laboratory settings, measuring rotational and linear movements.
  • Existing designs can be sensitive to mechanical perturbations, impacting measurement accuracy.
  • Nondiffractive beams offer unique properties like invariant profiles and radial symmetry.

Purpose of the Study:

  • To introduce and validate a novel optical encoder design utilizing a nondiffractive beam.
  • To investigate the potential of nondiffractive beams for enhancing tolerance to mechanical perturbations in optical encoders.
  • To experimentally verify the performance and accuracy of the proposed encoder design.

Main Methods:

  • Design and construction of an optical encoder system employing a nondiffractive beam.

Related Experiment Videos

  • Experimental testing to evaluate the encoder's output signal characteristics and robustness against mechanical disturbances.
  • Development of a numerical model based on the angular spectrum approximation for system simulation.

    • Main Results:

    • The proposed optical encoder design successfully generated a sinusoidal output signal.
    • The output signal exhibited low harmonic distortion, indicating high signal quality.
    • Experimental results showed excellent agreement with predictions from the numerical model.

    Conclusions:

    • The nondiffractive beam-based optical encoder design offers remarkable tolerance to mechanical perturbations due to its invariant profile and radial symmetry.
    • The system provides a high-quality sinusoidal output suitable for precise motion measurement applications.
    • The validated numerical model can be used for further optimization and design of similar optical encoder systems.