Optical Gas Detection for precise measurement Optical Gas Detection for precise measurement

Measurement methods & applications

Accurate gas detection is essential across industries — from ensuring environmental safety to optimizing production processes. Optical measurement techniques offer fast, reliable, and non-contact detection of gases in a wide variety of applications. Each method provides unique advantages depending on the target gas, concentration range, and environmental conditions.

NDIR (Non-Dispersive Infrared Spectroscopy)

  • Simple and proven detection principle
  • High reliability and easy maintenance
  • Excellent cost performance

Measurement CO2 concentration required for photosynthesis.

CO2 concentration monitoring for photosynthesis in agriculture and plant growth systems

Gas leak detection at factories and other work sites.

Gas leak detection in factories, laboratories, and industrial sites

FTIR (Fourier-Transform Infrared Spectroscopy)

  • Suitable for wide wavelength ranges
  • Ideal for gases with broad absorption bands
  • Enables analysis of multiple complex gases simultaneously

Concentration analysis of complex gas in automobile exhaust gas.

Vehicle exhaust gas analysis for compliance and performance testing

Analysis of complex gases emitted from factories and the like.

Industrial emissions monitoring of complex multi-gas mixtures

TDLAS (Tunable Diode Laser Absorption Spectroscopy)

  • Uses high-performance DFB semiconductor lasers
  • Delivers high-speed, high-accuracy measurements
  • Suitable for isotope measurement applications

Process control with real-time measurement of industrial gas.

Real-time process control for industrial gas monitoring

Analysis of SOx and NOx in gases emitted from factories and the like.

Accurate analysis of SOx and NOx emissions in factory environments

DOAS (Differential Optical Absorption Spectroscopy)

  • Works with visible and ultraviolet light
  • Optimal for detecting pollutants such as NOx and Sox
  • Less affected by moisture, ensuring stable readings

Real-time monitoring of automobile exhaust gas.

Real-time monitoring of vehicle exhaust emissions

Analysis of pollutant gases in the atmosphere.

Air pollution analysis for urban and environmental studies

Check out the recommended products for these methods here.

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