Top 10 Chinese Polyacrylamide Brands Worth Knowing: An Industry Overview
09,21,2026 14 views
The iLAS series in-situ laser gas analyzer adopts the principle of Tunable Diode Laser Absorption Spectroscopy (TDLAS), which can measure the concentration of specific gases in process gas components, including NH3, HCL, HF, H2S, CH4, O2, CO, CO2, etc. This gas analyzer has the characteristics of high sensitivity, fast response speed, no background gas interference, non-contact optical measurement, etc. It can be applied to gas emission monitoring, process control and other scenarios in many industrial fields, providing reliable assurance for real-time and accurate reflection of gas concentration changes.
1. Working principle
TDLAS emits laser light of a specific wavelength through the gas to be measured, and the gas molecules absorb the laser energy, resulting in a decrease in light intensity. By detecting the degree of attenuation and combining it with absorption spectrum characteristics, the gas concentration can be determined. The core steps include:
laser emissionEmit laser of a specific wavelength.
light absorptionGas molecules absorb laser energy.
Light intensity detectionDetect the transmitted light intensity.
signal processingAnalyze changes in light intensity and calculate gas concentration.
2. Main features
high sensitivityCan detect gas concentrations at the ppm or even ppb level.
quick responseReal time monitoring with short response time.
Non-contact measurementNo need for sampling preprocessing, reducing interference.
Multi gas monitoringBy adjusting the laser wavelength, multiple gases can be monitored simultaneously.
3. Application Fields
petrochemical industryMonitor gases such as CO, CO ₂, CH ₄, and optimize the production process.
power industryMonitor O ₂, CO, etc. in boiler flue gas to improve combustion efficiency.
steel industryMonitor the composition of blast furnace gas to ensure safe production.
environmental monitoringMonitor industrial waste gas emissions to ensure compliance with environmental standards.
4. On site case
The in-situ laser gas analyzer plays an important role in online monitoring of industrial process gases due to its high sensitivity, fast response, and non-contact measurement advantages.
