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

Angular Momentum01:21

Angular Momentum

989
Angular momentum characterizes an object's rotational motion and is defined as the moment of its linear momentum about a specified point O. When a particle moves along a curved path in the x-y plane, the scalar formulation calculates the magnitude of its angular momentum, utilizing the moment arm (d), representing the perpendicular distance from point O to the line of action of the linear momentum. Despite being scalar in formulation, angular momentum is inherently a vector quantity. Its...
989
Angular Velocity and Acceleration01:11

Angular Velocity and Acceleration

12.7K
We previously discussed angular velocity for uniform circular motion, however not all motion is uniform. Envision an ice skater spinning with their arms outstretched; when they pull their arms inward, their angular velocity increases. Additionally, think about a computer's hard disk slowing to a halt as the angular velocity decreases. The faster the change in angular velocity, the greater the angular acceleration. The instantaneous angular acceleration is defined as the derivative of...
12.7K
Angular Momentum: Single Particle01:10

Angular Momentum: Single Particle

8.0K
Angular momentum is directed perpendicular to the plane of the rotation, and its magnitude depends on the choice of the origin. The perpendicular vector joining the linear momentum vector of an object to the origin is called the “lever arm.” If the lever arm and linear momentum are collinear, then the magnitude of the angular momentum is zero. Therefore, in this case, the object rotates about the origin such that it lies on the rim of the circumference defined by the lever arm...
8.0K
Rotation with Constant Angular Acceleration - I01:37

Rotation with Constant Angular Acceleration - I

9.1K
If angular acceleration is constant, then we can simplify equations of rotational kinematics, similar to the equations of linear kinematics. This simplified set of equations can be used to describe many applications in physics and engineering where the angular acceleration of a system is constant.
Using our intuition, we can begin to see how rotational quantities such as angular displacement, angular velocity, angular acceleration, and time are related to one another. For example, if a flywheel...
9.1K
Relating Angular And Linear Quantities - II01:05

Relating Angular And Linear Quantities - II

7.0K
In the case of circular motion, the linear tangential speed of a particle at a radius from the axis of rotation is related to the angular velocity by the relation:
7.0K
Angular Momentum about an Arbitrary Axis01:11

Angular Momentum about an Arbitrary Axis

510
Imagine a rigid body with a mass denoted as 'm', which has its center of mass at point G and is rotating around an inertial reference frame. The angular momentum at an arbitrary point P can be calculated by taking the cross product of the position vector and linear momentum vector for each individual mass element.
The velocity of a mass element comprises its translational velocity and the relative velocity instigated by the body's rotation. Substituting the velocity equation into...
510

You might also read

Related Articles

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

Sort by
Same author

Trends in Medicare Part D prescription claims for biologic and nonbiologic immunosuppressive medications by dermatologists.

Journal of the American Academy of Dermatology·2020
Same author

Tripeptide and hexapeptide topical as adjunct to nonablative fractional resurfacing for photodamage: A randomized split-face trial.

Journal of cosmetic dermatology·2020
Same author

Rare case of a basal cell carcinoma with intravascular invasion.

International journal of women's dermatology·2020
Same author

The Complete Genome Sequence of a Bacterial Strain with High Alkalic Xylanase Activity Isolated from the Sludge Near a Papermill.

Current microbiology·2020
Same author

Assessment of treatment tolerance and parental perspective of outpatient pulsed-dye laser treatment for port wine birthmark without general anesthesia in infants and toddlers.

Journal of the American Academy of Dermatology·2020
Same author

Association Between Non-high-density Lipoprotein Cholesterol and 3-Month Prognosis in Patients With Spontaneous Intracerebral Hemorrhage.

Frontiers in neurology·2020
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Apr 7, 2026

Magnetic Adjustment of Afterload in Engineered Heart Tissues
09:40

Magnetic Adjustment of Afterload in Engineered Heart Tissues

Published on: May 5, 2020

6.3K

A Novel Permanent Magnetic Angular Acceleration Sensor.

Hao Zhao1,2, Hao Feng3,4

  • 1College of Information Engineering, Zhejiang University of Technology, Hangzhou 310023, China. zhaohao204@163.com.

Sensors (Basel, Switzerland)
|July 8, 2015
PubMed
Summary
This summary is machine-generated.

A new permanent magnetic sensor directly measures angular acceleration in rotary machinery without angle limitations. This innovation offers convenient installation and avoids signal weakening for improved fault diagnosis.

Keywords:
FEM analysiscalibration and testingelectromagnetic inductionsensor

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

6.8K
Magnetic Tweezers for the Measurement of Twist and Torque
11:41

Magnetic Tweezers for the Measurement of Twist and Torque

Published on: May 19, 2014

24.1K

Related Experiment Videos

Last Updated: Apr 7, 2026

Magnetic Adjustment of Afterload in Engineered Heart Tissues
09:40

Magnetic Adjustment of Afterload in Engineered Heart Tissues

Published on: May 5, 2020

6.3K
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

6.8K
Magnetic Tweezers for the Measurement of Twist and Torque
11:41

Magnetic Tweezers for the Measurement of Twist and Torque

Published on: May 19, 2014

24.1K

Area of Science:

  • Mechanical Engineering
  • Sensor Technology
  • Rotary Machinery Dynamics

Background:

  • Angular acceleration is critical for monitoring the health and diagnosing faults in rotating equipment.
  • Existing sensors may have limitations in rotation angle or signal integrity.

Purpose of the Study:

  • To develop and validate a novel permanent magnetic sensor for direct, real-time measurement of angular acceleration.
  • To overcome limitations of existing angular acceleration sensors, such as angle restrictions and signal degradation.

Main Methods:

  • Design and simulation of a novel permanent magnetic angular acceleration sensor.
  • Finite element method (FEM) used for simulation and analysis.
  • Experimental calibration using a torsional pendulum and angle sensor.
  • In-situ testing on a single-phase asynchronous motor and a step motor.

Main Results:

  • The sensor directly measures instantaneous angular acceleration without rotation angle limitations.
  • The sensor features convenient coaxial installation and a low-inertia rotor.
  • Signal transmission without slip rings prevents signal weakening.
  • Experimental calibration yielded a sensitivity of approximately 0.88 mV/(rad·s(-2)).

Conclusions:

  • The developed permanent magnetic sensor accurately measures angular acceleration in rotary systems.
  • The sensor demonstrates excellent practicability for status monitoring and fault diagnosis.
  • This technology offers a significant advancement for the analysis of rotating machinery.