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TDLAS CH4 Sensor Gasboard-2500
1 /2Pages
TDLAS CH4 Sensor Gasboard-2500
1 /2Pages
Catalog excerpts
TDLAS Cubic TDLAS Technology Tunable diode laser absorption spectroscopy (TDLAS) is one of the most sensitive and selective technologies used for measuring concentration of gases (methane, O 2 , CO, NH 3 .etc) in a gases mixture by the characteristic of tunable laser source with narrow linewidth and tenability. It is based on Lambert-Beer law which state absorption spectroscopy principles. It consists of tunable laser transmitter, optical measurement path, detector and pressure sensor. Laser source emit laser beam into the gas mixture through optical measurement path, by precisely modulating the current of tunable laser, it can scan a certain absorption peak of detected gas. At the opposite end the detector converts received laser power, attenuated by target gas absorption, into an electrical signal. The detected attenuated electrical signal reflects the changes in target gas concentration . Demodulation Phase Sensitive Detection Harmonic spectrum
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Features Narrow absorbing spectrum determine unique selectivity for methane Laser technology to ensure superior accuracy with supper low drift Laser principle to ensure anti-humidity Extended cable with connector for better integration Full temperature calibration and auto temperature compensation 100% humidity interference free, up to IP66 protection level Very fast response Low power consumption Applications Aboveground oil and gas pipeline Underground pipeline Refinery plant Natural gas transmission and distribution pipeline networks Underground pipe network Underground well (electric manhole...
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