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

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

1.7K
Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single...
1.7K
Angular Velocity and Displacement01:08

Angular Velocity and Displacement

22.0K
Uniform circular motion is motion in a circle at a constant speed. Although this is the simplest case of rotational motion, it is very useful for many situations and is used to introduce rotational variables. When a particle is moving in a circle, the coordinate system is fixed and serves as a frame of reference to define the particle’s position. Its position vector from the origin of the circle to the particle sweeps out the angle θ, which increases in the counterclockwise direction...
22.0K
Gyroscope: Precession01:24

Gyroscope: Precession

5.1K
Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
5.1K
NMR Spectrometers: Resolution and Error Correction01:14

NMR Spectrometers: Resolution and Error Correction

989
When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
989
Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

811
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...
811
Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

648
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
648

You might also read

Related Articles

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

Sort by
Same author

Cobalt-Catalyzed Hydrogen-Bond-Promoted Tandem Cyclization and Oxygen Migration: Access to Sterically Congested Fused Tetrahydro-β-Carbolines.

Organic letters·2026
Same author

Serum metabolomic characteristics and their predictive value for ninety-day prognosis in patients with acute-on-chronic liver failure.

World journal of gastroenterology·2025
Same author

Trends in the molecular epidemiology of human papillomavirus in males from the plateau region of Southwest China: an 11-year retrospective analysis (2014-2024).

Virology journal·2025
Same author

Development of a competitive ELISA based on Brucella neotomae lipopolysaccharide for detecting brucellosis in livestock.

Analytical biochemistry·2025
Same author

Environmental enrichment for neuropathic pain via modulation of neuroinflammation.

Frontiers in molecular neuroscience·2025
Same author

Gravitational wave astronomy with TianQin.

Reports on progress in physics. Physical Society (Great Britain)·2025

Related Experiment Video

Updated: Dec 27, 2025

Implementation of a Reference Interferometer for Nanodetection
16:11

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

9.7K

Super-resolved angular displacement estimation based upon a Sagnac interferometer and parity measurement.

Jian-Dong Zhang, Zi-Jing Zhang, Long-Zhu Cen

    Optics Express
    |March 4, 2020
    PubMed
    Summary

    This study demonstrates super-resolved angular displacement estimation using a Sagnac interferometer. The novel protocol achieves enhanced precision in quantum information processing, surpassing classical limits.

    More Related Videos

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
    08:23

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

    Published on: September 30, 2019

    6.6K
    Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy iPALM
    11:57

    Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy iPALM

    Published on: December 1, 2016

    11.1K

    Related Experiment Videos

    Last Updated: Dec 27, 2025

    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.7K
    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
    08:23

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

    Published on: September 30, 2019

    6.6K
    Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy iPALM
    11:57

    Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy iPALM

    Published on: December 1, 2016

    11.1K

    Area of Science:

    • Quantum Information Processing
    • Quantum Metrology
    • Optical Interferometry

    Background:

    • Precise angular displacement estimation is vital for quantum technologies.
    • Existing methods often face limitations in sensitivity and resolution.
    • Super-resolution techniques are sought to overcome classical bounds.

    Purpose of the Study:

    • To develop a super-resolved angular displacement estimation protocol.
    • To enhance precision in quantum information processing applications.
    • To experimentally validate the proposed estimation method.

    Main Methods:

    • Utilizing a Sagnac interferometer.
    • Employing coherent states with orbital angular momentum.
    • Implementing parity measurements for enhanced resolution.

    Main Results:

    • Achieved a 4ℓ-fold super-resolved output in a lossless scenario.
    • Demonstrated shot-noise-limited sensitivity, saturating the quantum Cramér-Rao bound.
    • Experimentally confirmed a super-resolved effect with a factor of 7.88.

    Conclusions:

    • The proposed protocol offers significant advancements in angular displacement estimation.
    • The method shows robustness against realistic experimental imperfections.
    • This work paves the way for more precise quantum measurements.