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

1.0K
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...
1.0K
Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

814
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...
814
Relative Motion Analysis using Rotating Axes - Acceleration01:22

Relative Motion Analysis using Rotating Axes - Acceleration

957
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...
957
Kinematic Equations for Rotation01:30

Kinematic Equations for Rotation

956
In mechanics, when one observes a rigid body in rotational motion with constant angular acceleration, it is possible to establish equations for its rotational kinematics. This process resembles how linear kinematics are dealt with in simpler motion studies.
For instance, imagine a point A on a rigid body engaged in circular motion. The translational velocity of this particular point can be calculated by taking the time derivatives of the displacement equation, which essentially measures the...
956
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

891
A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
891
Rotational Motion about a Fixed Axis01:26

Rotational Motion about a Fixed Axis

1.7K
A rigid body's rotation around a fixed axis makes every point within it trace a circular path around a specific line or point. The term given to this type of spinning is defined by the angular position, symbolized by the angle θ. This angle is gauged from a static reference line to the revolving object. From this angular position, any variation is referred to as angular displacement, denoted by dθ. The extent of this displacement can be calculated in degrees, radians, or...
1.7K

You might also read

Related Articles

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

Sort by
Same author

A noncanonical role of SAT1 enables anchorage independence and peritoneal metastasis in ovarian cancer.

Nature communications·2025
Same author

Effect of Hypoglycemic Drugs on Patients with Heart Failure with or without T2DM: A Bayesian Network Meta-analysis.

Reviews in cardiovascular medicine·2025
Same author

Cuproptosis inhibits tumor progression and enhances cisplatin toxicity in ovarian cancer.

FASEB journal : official publication of the Federation of American Societies for Experimental Biology·2025
Same author

US disruptions to science could transform global research landscape.

Nature·2025
Same author

Accuracy of 3D CE-MRA combined with ultrasound microbubble angiography for the diagnosis of lower extremity atherosclerotic occlusion.

American journal of translational research·2025
Same author

Enhancer transcription profiling reveals an enhancer RNA-driven ferroptosis and new therapeutic opportunities in prostate cancer.

Signal transduction and targeted therapy·2025

Related Experiment Video

Updated: Mar 15, 2026

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
06:09

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

Published on: March 12, 2021

3.9K

Vision-based measurement for rotational speed by improving Lucas-Kanade template tracking algorithm.

Jie Guo, Chang'an Zhu, Siliang Lu

    Applied Optics
    |September 9, 2016
    PubMed
    Summary

    This study introduces a novel vision-based algorithm for measuring rotational angle and speed in machinery. The method accurately tracks objects using a modified Lucas-Kanade algorithm, enabling effective condition monitoring and fault diagnosis.

    More Related Videos

    Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
    07:24

    Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

    Published on: August 22, 2025

    609
    Video-oculography in Mice
    09:43

    Video-oculography in Mice

    Published on: July 19, 2012

    24.5K

    Related Experiment Videos

    Last Updated: Mar 15, 2026

    Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
    06:09

    Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

    Published on: March 12, 2021

    3.9K
    Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
    07:24

    Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

    Published on: August 22, 2025

    609
    Video-oculography in Mice
    09:43

    Video-oculography in Mice

    Published on: July 19, 2012

    24.5K

    Area of Science:

    • Mechanical Engineering
    • Computer Vision
    • Signal Processing

    Background:

    • Rotational angle and speed are critical for machinery condition monitoring and fault diagnosis.
    • Accurate measurement is essential for precision machining and early fault detection.

    Purpose of the Study:

    • To propose a novel vision-based measurement algorithm for rotational angle and speed.
    • To enable noncontact and effective condition monitoring of rotating machinery.

    Main Methods:

    • Utilizing a high-speed camera to capture video of the rotating object.
    • Applying a template-based Lucas-Kanade algorithm with a nonlinear transformation for motion tracking and angle extraction.
    • Developing a practical tracking strategy for video sequence analysis.

    Main Results:

    • The algorithm accurately extracts rotational angles from video sequences.
    • Instantaneous rotational speed (IRS) is measured accurately and efficiently.
    • Validation on a brushless direct current motor test rig showed effectiveness compared to microphone-based methods.

    Conclusions:

    • The proposed vision-based algorithm provides accurate noncontact measurement of rotational angles and IRS.
    • This method offers an effective solution for condition monitoring and fault diagnosis in rotating machinery.