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

Net Torque Calculations01:19

Net Torque Calculations

When a mechanic tries to remove a hex nut with a wrench, it is easier if the force is applied at the farthest end of the wrench handle. The lever arm is the distance from the pivot point (the hex nut in this case) to the person’s hand. If this distance is large, the torque is higher. Only the component of the force perpendicular to the lever arm contributes to the torque. Therefore, pushing the wrench perpendicular to the lever arm is more advantageous. If multiple people apply force to rotate...
Magnetic Damping01:17

Magnetic Damping

Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...

You might also read

Related Articles

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

Sort by
Same author

Probiotic-fermented herbal residues in obesity management: a review.

Frontiers in public health·2026
Same author

Distinct contributions of two subpopulations of subthalamic neurons to levodopa-induced dyskinesia.

Science advances·2026
Same author

Retraction notice to "Algorithm developed for dynamic quantification of coal consumption for and emission from rural winter heating" [Sci. Total Environ. 737 (2020) 139762].

The Science of the total environment·2026
Same author

Lagged crop responses to drought across China: contrasting multivariate environmental pathways in rainfed and irrigated systems.

Journal of environmental management·2026
Same author

LIPA regulates myeloid differentiation and is essential for intra-plaque macrophage accumulation during atherogenesis.

Journal of lipid research·2026
Same author

Decoding the Dynamic Landscape of Sequential Disease Stages from Oral Submucous Fibrosis to Oral Squamous Cell Carcinoma.

International dental journal·2026

Related Experiment Video

Updated: May 10, 2026

Optimization, Test and Diagnostics of Miniaturized Hall Thrusters
12:22

Optimization, Test and Diagnostics of Miniaturized Hall Thrusters

Published on: February 16, 2019

Precision electromagnetic calibration technique for micro-Newton thrust stands.

Zhen He1, Jianjun Wu, Daixian Zhang

  • 1College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China. hezhen34@sina.com.cn

The Review of Scientific Instruments
|June 8, 2013
PubMed
Summary
This summary is machine-generated.

A novel electromagnetic calibration technique offers precise non-contact measurement of micro-thrust and impulse. This method utilizes a ring electromagnet for accurate force generation, crucial for scientific instrumentation.

More Related Videos

Measurement of Extracellular Ion Fluxes Using the Ion-selective Self-referencing Microelectrode Technique
09:18

Measurement of Extracellular Ion Fluxes Using the Ion-selective Self-referencing Microelectrode Technique

Published on: May 3, 2015

Related Experiment Videos

Last Updated: May 10, 2026

Optimization, Test and Diagnostics of Miniaturized Hall Thrusters
12:22

Optimization, Test and Diagnostics of Miniaturized Hall Thrusters

Published on: February 16, 2019

Measurement of Extracellular Ion Fluxes Using the Ion-selective Self-referencing Microelectrode Technique
09:18

Measurement of Extracellular Ion Fluxes Using the Ion-selective Self-referencing Microelectrode Technique

Published on: May 3, 2015

Area of Science:

  • Physics
  • Engineering
  • Metrology

Background:

  • Accurate measurement of micro-thrust and impulse is critical for various scientific and engineering applications.
  • Existing calibration techniques may have limitations in precision, range, or contact-based methodologies.

Purpose of the Study:

  • To introduce and validate a new direct non-contact electromagnetic calibration technique.
  • To achieve high precision measurements of micro-thrust and impulse.
  • To assess the uncertainty and influential factors of the proposed calibration method.

Main Methods:

  • A direct non-contact electromagnetic calibration technique employing a ring-shaped electromagnet with an air gap.
  • Calibration force generation through the interaction of a uniform magnetic field and a copper wire current.
  • Linear dependence analysis of calibration force on current and torsion arm displacement.
  • Impulse calibration based on maximal angular displacement.

Main Results:

  • The calibration force exhibits a linear dependence on the current and steady angular displacement.
  • The technique offers a large range of calibration force, easy generation, and insensitivity to arm displacement.
  • A calibration uncertainty of 4.17 μN was achieved for a 150-μN force.
  • Electromagnet core magnetization by copper wire current was identified as a key factor influencing calibration uncertainty.
  • Impulse calibration shows linear dependence on maximal angular displacement, with uncertainty influenced by force calibration and pulse time.

Conclusions:

  • The developed electromagnetic calibration technique provides a precise and reliable method for micro-thrust and impulse measurements.
  • The non-contact nature and large force range make it suitable for advanced scientific instrumentation.
  • Understanding uncertainty factors is crucial for optimizing the calibration process.