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

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 distances...
Doppler Effect - II01:05

Doppler Effect - II

The Doppler effect has several practical, real-world applications. For instance, meteorologists use Doppler radars to interpret weather events based on the Doppler effect. Typically, a transmitter emits radio waves at a specific frequency toward the sky from a weather station. The radio waves bounce off the clouds and precipitation and travel back to the weather station. The radio frequency of the waves reflected back to the station appears to decrease if the clouds or precipitation are moving...
Distance Measurements by Taping01:18

Distance Measurements by Taping

Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:

You might also read

Related Articles

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

Sort by
Same author

RNA therapeutics-An evaluation of potential occupational health hazards and a strategy to establish occupational exposure limits (OELs).

Journal of occupational and environmental hygiene·2025
Same author

Preinterventional Third-Molar Assessment Using Robust Machine Learning.

Journal of dental research·2023
Same author

Controlling cleaning agent residues in pharmaceutical manufacturing: A harmonized scientific strategy.

Regulatory toxicology and pharmacology : RTP·2023
Same author

Delayed Surgery for Perforated Appendicitis is Feasible in Children Without Compromising the Outcome in Selected Cases.

World journal of surgery·2022
Same author

PDE concept for controlling cleaning agent residues in pharmaceuticals- A critical analysis.

Regulatory toxicology and pharmacology : RTP·2021
Same author

Switching off for future-Cost estimate and a simple approach to improving the ecological footprint of radiological departments.

European journal of radiology open·2021
Same journal

Denoising algorithm of Φ-OTDR systems based on adaptive fractional wavelet transform denoising.

Optics express·2026
Same journal

Millisecond photon-to-photon latency and high-speed volumetric projection system for optogenetics.

Optics express·2026
Same journal

Polarization-encoded coaxial structured light for high-precision 3D surface profilometry.

Optics express·2026
Same journal

Discrete freeform optical design based on collaborative optimization of point cloud and local normals.

Optics express·2026
Same journal

Ultrafast ghost imaging with 25 GHz speckle switching and wavelength-division multiplexing.

Optics express·2026
Same journal

Atomic vapor cells fabricated by femtosecond laser welding of standard-optical-quality glass.

Optics express·2026
See all related articles

Related Experiment Video

Updated: Jun 25, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Laser Doppler distance sensor using phase evaluation.

P Günther1, T Pfister, L Büttner

  • 1Laboratory of Measurement and Testing Techniques, Department of Electrical Engineering and Information Technology, Technische Universität Dresden. philipp.guenther@tu-dresden.de

Optics Express
|February 17, 2009
PubMed
Summary
This summary is machine-generated.

This novel optical sensor precisely measures position and velocity of moving objects. It achieves high-resolution distance measurements independent of surface speed, ideal for fast-rotating surfaces.

More Related Videos

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
09:10

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

Published on: December 5, 2025

Related Experiment Videos

Last Updated: Jun 25, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
09:10

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

Published on: December 5, 2025

Area of Science:

  • Optical sensing
  • Metrology
  • Laser Doppler velocimetry

Background:

  • Conventional measurement techniques like triangulation have limitations in resolving fast-moving or rotating surfaces.
  • Precise axial position and tangential velocity measurements are crucial in various industrial applications.

Purpose of the Study:

  • To present a novel optical sensor for simultaneous axial position and tangential velocity measurement of solid-state objects.
  • To demonstrate a distance resolution of 150 nm and position uncertainty below 1 micrometer.

Main Methods:

  • Utilizing an extended laser Doppler velocimeter (LDV) setup.
  • Employing two slightly tilted interference fringe systems for phase evaluation.
  • Implementing phase evaluation for distance determination.

Main Results:

  • Achieved a distance resolution of 150 nm.
  • Demonstrated a total position uncertainty below 1 micrometer.
  • Distance resolution was found to be independent of lateral surface velocity.

Conclusions:

  • The developed phase laser Doppler distance sensor enables precise distance and shape measurements of fast-rotating surfaces.
  • This sensor overcomes limitations of conventional methods for dynamic surface metrology.
  • The technology offers significant advantages for high-speed industrial measurement applications.