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 Experiment Videos

Multiline absorption spectroscopy for methane gas detection.

Yi Qu1, Zhi-Hui Kang, Yun Jiang

  • 1College of Physics, Jilin University, Changchun 130023, China.

Applied Optics
|November 7, 2006
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Secondary Effects from Mass Azithromycin Administration: A Systematic Review and Meta-analysis.

The American journal of tropical medicine and hygiene·2022
Same author

Design of a Fiber Bragg Grating Pressure Sensor Based on a Metal Diaphragm and Lever Structure.

Sensors (Basel, Switzerland)·2022
Same author

Predictive Value of the Respiratory Variation in Inferior Vena Cava Diameter for Ventilated Children With Septic Shock.

Frontiers in pediatrics·2022
Same author

Modifiable risk factors for incident dementia and cognitive impairment: An umbrella review of evidence.

Journal of affective disorders·2022
Same author

Corrigendum: Pathogenicity and Long-Term Outcomes of Liddle Syndrome Caused by a Nonsense Mutation of SCNN1G in a Chinese Family.

Frontiers in pediatrics·2022
Same author

Eltrombopag binds SDC4 directly and enhances MAPK signaling and macropinocytosis in cancer cells.

American journal of cancer research·2022
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

This study presents an open-path methane detection system using multiline absorption spectroscopy. The developed system achieved a minimum detectable concentration of 1000 ppm, enhancing methane sensing capabilities.

Area of Science:

  • Spectroscopy
  • Environmental Monitoring
  • Gas Sensing

Background:

  • Single-line absorption spectroscopy has limitations in sensitivity for gas detection.
  • Open-path systems are crucial for real-time environmental monitoring.
  • Methane detection is vital for safety and environmental applications.

Purpose of the Study:

  • To investigate a multiline absorption spectroscopy technique for enhanced methane detection.
  • To design and demonstrate an open-path methane-detecting system.
  • To improve the detectable sensitivity compared to single-line methods.

Main Methods:

  • Developed an open-path system based on single-line absorption spectroscopy principles.
  • Utilized a Light Emitting Diode (LED) as a broadband light source.

Related Experiment Videos

  • Employed a Fabry-Perot interferometer tuned to methane R-branch absorption lines.
  • Implemented multiline differential absorption spectroscopy and multiline wavelength modulation spectroscopy.

    • Main Results:

    • Achieved a minimum-detectable concentration of 7600 ± 10% ppm using multiline differential absorption spectroscopy.
    • Demonstrated a minimum-detectable concentration of 1000 ± 10% ppm using multiline wavelength modulation spectroscopy.
    • The Fabry-Perot interferometer enhanced detectable sensitivity.

    Conclusions:

    • Multiline absorption spectroscopy offers improved sensitivity for open-path methane detection.
    • The designed system, particularly with wavelength modulation spectroscopy, shows promise for accurate methane sensing.
    • Further development could lead to more sensitive and practical methane monitoring solutions.