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

Measurement of Fluid Pressure01:16

Measurement of Fluid Pressure

572
Fluid pressure is commonly measured using devices called manometers, which rely on liquid columns to indicate pressure differences. The height of a liquid column in a manometer reflects the pressure exerted by the fluid, providing a simple yet effective means of measurement. Different types of manometers serve specific purposes based on their configurations and the type of fluids involved.
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...
572
Vector Components in the Cartesian Coordinate System01:29

Vector Components in the Cartesian Coordinate System

26.7K
Vectors are usually described in terms of their components in a coordinate system. Even in everyday life, we naturally invoke the concept of orthogonal projections in a rectangular coordinate system. For example, if someone gives you directions for a particular location, you will be told to go a few km in a direction like east, west, north, or south, along with the angle in which you are supposed to move. In a rectangular (Cartesian) xy-coordinate system in a plane, a point in a plane is...
26.7K
Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

383
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence of...
383
Three-Dimensional Force System01:30

Three-Dimensional Force System

2.8K
In mechanical engineering, a three-dimensional force system is a system of forces acting in three dimensions, with forces applied along the x, y, and z coordinate axes. The three-dimensional force system is an important concept in mechanical engineering, as it allows engineers to understand and analyze the behavior of objects and structures in three dimensions. By understanding the forces acting on a system, engineers can design more efficient and effective mechanical systems that can withstand...
2.8K
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

796
In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
796

You might also read

Related Articles

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

Sort by
Same author

The dual role of ATF4 in neurons: from stress adaptation to therapeutic intervention.

Frontiers in molecular neuroscience·2026
Same author

Inhibition of Raly promotes oligodendrocyte precursor cell differentiation and remyelination after chronic hypoperfusion.

Neural regeneration research·2026
Same author

Disasters weaken the synergy effects among the global Sustainable Development Goals.

iScience·2026
Same author

Dual-branch spatio-temporal graph network for bearing fault diagnosis.

Scientific reports·2026
Same author

Discovery of MARK2 as a physiological kinase for PER2 in the mammalian clock.

Cell chemical biology·2026
Same author

Graphene/thermally expandable microsphere composite films with switchable thermal conductivity for intelligent thermal management.

Journal of colloid and interface science·2026

Related Experiment Video

Updated: Jan 13, 2026

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow
13:02

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

Published on: February 27, 2016

12.9K

Specific Dynamic Parameters: A Novel Multi-View Stereo Vision Measurement System for Vector Nozzle.

Zhixiao Lin1, Kechen Song1, Han Zhang1

  • 1School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China.

Sensors (Basel, Switzerland)
|January 10, 2026
PubMed
Summary

This study introduces a novel vision system for precise measurement of vector nozzle motion parameters in aero-engines. The system achieves high accuracy and stability, crucial for thrust vector control and flight performance.

Keywords:
fitting and measuringmulti-view stereo visionpoint cloud segmentationvector nozzle

More Related Videos

Determining 3D Flow Fields via Multi-camera Light Field Imaging
14:25

Determining 3D Flow Fields via Multi-camera Light Field Imaging

Published on: March 6, 2013

17.1K
Methods for Measuring the Orientation and Rotation Rate of 3D-printed Particles in Turbulence
12:34

Methods for Measuring the Orientation and Rotation Rate of 3D-printed Particles in Turbulence

Published on: June 24, 2016

10.5K

Related Experiment Videos

Last Updated: Jan 13, 2026

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow
13:02

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

Published on: February 27, 2016

12.9K
Determining 3D Flow Fields via Multi-camera Light Field Imaging
14:25

Determining 3D Flow Fields via Multi-camera Light Field Imaging

Published on: March 6, 2013

17.1K
Methods for Measuring the Orientation and Rotation Rate of 3D-printed Particles in Turbulence
12:34

Methods for Measuring the Orientation and Rotation Rate of 3D-printed Particles in Turbulence

Published on: June 24, 2016

10.5K

Area of Science:

  • Aerospace Engineering
  • Computer Vision
  • Mechanical Engineering

Background:

  • Accurate measurement of vector nozzle motion is vital for aero-engine thrust vector control and flight performance.
  • Existing methods may lack the precision required for advanced aero-engine applications.

Purpose of the Study:

  • To design and validate a multi-view vision system for precise measurement of vector nozzle motion parameters.
  • To develop a robust technical solution combining 3D reconstruction, point cloud segmentation, and fitting measurement.

Main Methods:

  • A dual-bearing rotating nozzle was designed for simulation.
  • A multi-view vision platform was developed for motion parameter measurement.
  • A "3D reconstruction-point cloud segmentation-fitting measurement" approach was employed, utilizing deep learning for stereo vision, Point Transformer for segmentation, and RANSAC for circle fitting.

Main Results:

  • The system demonstrated high accuracy and stability in measuring vector nozzle motion parameters.
  • Analysis of Variance (ANOVA) in measurement system analysis showed GRR% of 2.81% and NDC of 7.69% (or 1.84%, 50, 18, 76 depending on interpretation).
  • Effectiveness was verified through comparative experiments.

Conclusions:

  • The proposed vision system and measurement method are effective and reliable for vector nozzle motion parameter measurement.
  • The system's high accuracy and stability support advancements in thrust vector control and flight performance.
  • This research provides a valuable tool for the development and testing of aero-engine components.