Tunable Diode Laser Absorption Spectroscopy (TDLAS) Technology
Quantitive site-level continuous emission monitoring
Superior accuracy with low detection limit 1ppm
Reliable performance in challenging weather conditions
Narrow absorbing spectrum determines unique selectivity for methane
Enhanced stability with supper low drift and low maintenance
Anit-humidity to ensure stable performance in harsh working conditions
Linearization and factory calibration for accurate measurement
Long-term stability for reliable safety alarm
Embedded temperature and humidity compensation
Super-low power at micro amp level
Matrix calibration to ensure high accuracy over full temperature
Long-term stability for reliable safety alarm
Non-dispersive infrared (NDIR) is an infrared source-based technology. NDIR gas sensors consist of an infrared source, detector, optical filter, gas cell, and electronics for signal processing.
Its working principle is based on the property of certain gas molecules to absorb light at specific wavelengths. Infrared light that is absorbed by a target gas passes through the active filter with a particular bandwidth for the detection of the target gas. The absorption is calculated according to the Beer-Lambert law. The amount of absorption is proportional to the concentration of the target gas.
Cubic NDIR technology adopts the matrix calibration assuring excellent accuracy over the full temperature range; dual-beam optical path design and smart compensation algorithm ensure reliable long-term stability, achieving credible safety monitoring.
Tunable diode laser spectroscopy (TDLAS) is a narrowband laser-based technology. TDLAS sensor mainly consists of a laser light source, gas chamber and photodiode.
The wavelength is tuned to the absorption optical spectrum of the target gas through periodic modulation of the input current. After targeted gas absorption, the remaining laser light will arrive at the photodiode which will be detected. The absorption is calculated according to the Beer-Lambert law. The amount of absorption relies on the optical path length in the gas chamber and the absorption coefficient of the target gas.
Cubic TDLAS technology adopts a long laser light path by multiple reflections, enabling low range, superior-low detection limit, and high-resolution quantitive measurement.
More than 20 years of commitment to optical gas sensing technology for methane emission monitoring solutions.
Scaled and sustainable manufacturing capabilities to ensure reliable deliveries.
By implementing large-scale production and melding self-developed components for integration to realize meticulous cost innovation.
Complete laboratory testing capabilities and strict quality control systems to ensure high-quality products from R&D to applications.
Contact Us to Explore Innovative Methane Gas Sensing Solutions!
inquiry@gassensor.com.cn
+86-27-81628827
Fenghuang No.3 Road, Fenghuang Industrial Park, Eastlake Hi-tech Development Zone, Wuhan, 430205, China 
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