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

The Electromagnetic Spectrum02:37

The Electromagnetic Spectrum

65.1K
The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
65.1K
The Electromagnetic Spectrum01:24

The Electromagnetic Spectrum

33.6K
Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
33.6K
Bar Graph01:07

Bar Graph

21.9K
A bar graph is also called a bar chart and consists of bars that are separated from each other. It either uses horizontal or vertical bars to show comparisons among categories. The bars can be rectangles, or they can be rectangular boxes (used in three-dimensional plots). One axis of the graph represents the specific categories being compared, and the other axis shows a discrete value. In this graph, the length of the bar for each category is proportional to the number or percent of individuals...
21.9K
Multiple Bar Graph01:07

Multiple Bar Graph

9.1K
As the name suggests, a multiple bar graph is the same as a bar graph but has multiple bars to depict relationships between different data values. One can include as many parameters as possible. However, each parameter must have the same unit of measurement.
Each bar or column in the multiple bar graph represents a data value. These graphs are used primarily in interrelating two or more sets of data. The categories of different kinds of data are listed along the horizontal or x-axis, whereas...
9.1K
Pulse01:16

Pulse

2.1K
When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
2.1K
Pulse01:05

Pulse

3.6K
The pulse is one of the most fundamental physiological indicators of the body's cardiovascular health. It is the rhythmic expansion and contraction of the arterial walls in response to the pressure generated by the heart's pumping action.
Pulse Rate and its Significance
Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls...
3.6K

You might also read

Related Articles

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

Sort by
Same author

Design and development of a novel strain gauge automatic pasting device for mini split Hopkinson pressure bar.

The Review of scientific instruments·2018
Same author

A miniature Hopkinson experiment device based on multistage reluctance coil electromagnetic launch.

The Review of scientific instruments·2017
See all related articles

Related Experiment Video

Updated: Jan 28, 2026

Blast Quantification Using Hopkinson Pressure Bars
09:41

Blast Quantification Using Hopkinson Pressure Bars

Published on: July 5, 2016

9.4K

A miniature multi-pulse series loading Hopkinson bar experimental device based on an electromagnetic launch.

Wenkai Huang1, Guangxin Chen2, Mingbin Hu2

  • 1Center for Research on Leading Technology of Special Equipment, School of Mechanical and Electric Engineering, Guangzhou University, Guangzhou 510006, People's Republic of China.

The Review of Scientific Instruments
|March 6, 2019
PubMed
Summary

Researchers developed a new technique for controlled multi-pulse loading in split Hopkinson pressure bar (SHPB) experiments using a reluctance coil launcher. This method precisely controls multiple stress pulses for advanced material dynamic response studies.

More Related Videos

High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition
05:11

High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition

Published on: June 27, 2025

667
Feeding Experimentation Device FED: Construction and Validation of an Open-source Device for Measuring Food Intake in Rodents
09:18

Feeding Experimentation Device FED: Construction and Validation of an Open-source Device for Measuring Food Intake in Rodents

Published on: February 21, 2017

8.6K

Related Experiment Videos

Last Updated: Jan 28, 2026

Blast Quantification Using Hopkinson Pressure Bars
09:41

Blast Quantification Using Hopkinson Pressure Bars

Published on: July 5, 2016

9.4K
High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition
05:11

High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition

Published on: June 27, 2025

667
Feeding Experimentation Device FED: Construction and Validation of an Open-source Device for Measuring Food Intake in Rodents
09:18

Feeding Experimentation Device FED: Construction and Validation of an Open-source Device for Measuring Food Intake in Rodents

Published on: February 21, 2017

8.6K

Area of Science:

  • Materials Science and Engineering
  • Mechanical Engineering
  • Experimental Dynamics

Background:

  • Classical split Hopkinson pressure bar (SHPB) testing typically employs single-pulse loading.
  • Controlled multi-pulse loading is rarely utilized in SHPB research, limiting the study of complex material behaviors under dynamic stress.
  • A need exists for advanced loading techniques to better understand material responses to sequential impacts.

Purpose of the Study:

  • To introduce a novel technique for controlled multi-pulse loading in SHPB experiments.
  • To develop and present a miniature multi-pulse series reluctance coil launcher for precise dynamic material testing.
  • To enable detailed investigation of material dynamic responses under precisely controlled sequential loading conditions.

Main Methods:

  • Development of a micro-multi-pulse series reluctance coil emitter comprising two single-stage reluctance coils and two impact bars.
  • Generation of two successive loading pulses of identical amplitude by sequentially impacting the incident bar with the two impact bars.
  • Control of the time delay between the two loading pulses by adjusting the distance between the impact bars and their launch speed.

Main Results:

  • Successful implementation of a controlled multi-pulse loading technique for SHPB experiments.
  • Demonstration of precise control over the delay between successive loading pulses.
  • The developed reluctance coil launcher provides a reliable method for generating repeatable multi-pulse impacts.

Conclusions:

  • The proposed precise multi-pulse loading technique is easily implementable in SHPB setups.
  • This technique facilitates the measurement and study of the dynamic response of various materials under complex loading scenarios.
  • The developed reluctance coil launcher offers a versatile tool for advanced materials research in dynamic mechanics.