< img src="https://www.webtraxs.com/webtraxs.php?id=wt-68567b3d-3d05-456b-a62d-390ac0c2ff88&st=img" alt="" />
ENG| CN
Contact LinkedIn Cubic

logo

Home > Technology > Dual Beam NDIR
What is Dual Beam NDIR
The principle of non-dispersive infrared gas sensing technology is that the gas absorption of characteristic infrared wavelengths conforms to Lambert-Beer's law. The basic principle is that an infrared light source emits an infrared beam through the sampling gas chamber, and each gas component in the sample gas absorbs a specific frequency infrared rays. By the detector to receive and measure the infrared absorption of the corresponding frequency, combined with the algorithm analysis set in the embedded software, the concentration of the gas component can be measured. The reason why this technique is non-dispersive is that the wavelength passing through the sampling gas cell is not pre-filtered.
Different gases have their own different absorption spectra due to differences in their molecular structure, concentration and energy distribution. If the absorption peaks of different gases overlap, the mutual interference between these gases must be dealt with. In addition, in a specific wavelength range, gas detection will also be interfered by moisture. Therefore, the use of non-dispersive infrared technology for gas measurement needs to solve the problems of cross interference between different gases, high and low temperature effects, humidity effects, and component noise effects. This requires the integration of gas path, circuit, optical path design and software algorithm Cooperate.

Related Products
  • Gasboard-5020
    Automobile Emission Gas Analyzer
    More
  • Gasboard-2000
    NDIR Gas Bench
    More
  • Gasboard-9050
    Continuous Emission Monitoring System (CEMS)
    More
  • Gasboard-3500
    Online Biogas Analysis System
    More
  • Gasboard-3200Plus
    Handheld Biogas Analyzer
    More
  • Gasboard-3100P
    Portable Infrared Syngas Analyzer
    More
  • Gasboard-3100
    Online Infrared Syngas Analyzer
    More
  • Gasboard-3110P
    Portable Infrared Natural Gas Analyzer
    More
This website uses cookies to improve your user experience. By using this site, you consent to the use of cookies. You can find more information in our Privacy Policy.