Jove
Visualize
Contact Us

Related Concept Videos

2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)01:19

2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)

1.0K
Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...
1.0K
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

365
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
365

You might also read

Related Articles

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

Sort by
Same journal

Quantitative evaluation of surface crack depth based on wideband surface waves electromagnetic acoustic transducer.

The Review of scientific instruments·2026
Same journal

A tetrahedral probe constellation approach for measuring canonical momentum in self-organized laboratory plasma.

The Review of scientific instruments·2026
Same journal

High-precision and short duration operating time dispersion in a fast mechanical switch driven by an ultrasonic motor: Modeling, prediction, and compensation.

The Review of scientific instruments·2026
Same journal

Cluster assisted soft-landing hub (CLASH): An instrument for surface desorption and deposition using a pulsed cluster ion source.

The Review of scientific instruments·2026
Same journal

Influence of pre-ionization parameters on multi-channel discharge characteristics of field-distortion switch gaps.

The Review of scientific instruments·2026
Same journal

A Joule-Thomson low-temperature scanning tunneling microscope with vector magnet and rotatable scanning head.

The Review of scientific instruments·2026
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 Experiment Video

Updated: Oct 21, 2025

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
14:11

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

Published on: March 29, 2016

27.1K

A dual-frequency phase-difference method for ultrasonic hydrogen-concentration detection.

Xin Ding1, Yunbo Shi1, Hui Sun1

  • 1The Higher Educational Key Laboratory for Measuring & Control Technology and Instrumentation of Heilongjiang Province, Harbin University of Science and Technology, Harbin 150080, China.

The Review of Scientific Instruments
|September 2, 2021
PubMed
Summary
This summary is machine-generated.

A new dual-frequency phase-difference technique accurately measures high-concentration hydrogen leaks, crucial for energy system safety. This method enhances ultrasonic gas detection, offering a reliable solution for detecting up to 50% hydrogen concentration.

More Related Videos

Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications
08:19

Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications

Published on: October 5, 2018

6.6K
Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging
04:54

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

3.3K

Related Experiment Videos

Last Updated: Oct 21, 2025

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
14:11

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

Published on: March 29, 2016

27.1K
Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications
08:19

Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications

Published on: October 5, 2018

6.6K
Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging
04:54

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

3.3K

Area of Science:

  • Energy systems engineering
  • Sensor technology
  • Chemical safety

Background:

  • Hydrogen energy systems present safety risks due to high-concentration leaks.
  • Accurate measurement of high-concentration hydrogen is critical for safety.
  • Traditional ultrasonic gas detection methods have limitations in resolution and measurement range.

Purpose of the Study:

  • To develop an improved ultrasonic technique for detecting high-concentration hydrogen.
  • To overcome the limitations of traditional phase-difference methods in multi-period detection.
  • To provide a reliable method for measuring hydrogen concentrations up to 50%.

Main Methods:

  • Proposed a novel dual-frequency phase-difference technique for ultrasonic gas detection.
  • Utilized simulation analysis to validate the technique's performance.
  • Conducted experimental validation to assess measurement accuracy and range.

Main Results:

  • The dual-frequency phase-difference technique accurately measures multi-period phase differences.
  • The proposed method successfully detected hydrogen concentrations up to 50%.
  • Achieved an uncertainty of less than 5% in measurements, meeting commercial standards.

Conclusions:

  • The dual-frequency phase-difference technique offers a significant advancement in high-concentration hydrogen detection.
  • This method enhances the safety and reliability of hydrogen energy systems.
  • The technique provides accurate and commercially viable measurements for critical hydrogen leak detection.