Research of Mining Optical Fiber CO2 Monitoring System Based on TDLAS
Abstract：Carbon dioxide (CO2 ) is one of the important signal gases for forecasting and warning of the spontaneous combustion in the waste of coal mine. The CO2 concentration directly affects the production safety of the mine. Proposes a novel optical fiber CO2 monitoring system adopting tunable diode laser absorption spectroscopy (TDLAS). The CO2 concentration is calculated by the least square fit (LSF). Achieves the data calibration by single point. Compares to the electronic CO2 detector, the monitoring system not only improves the operability, facilitates field operations, but also achieves real- time on -line monitoring CO2 concentration in the waste. And this system also has higher detection accuracy and sensitivity. Its application to beam tube system in coal mine will be more fine to meet the needs of production safety, and be of good prospect.
Keywords：least square fittunable diode laser absorption spectroscopy (TDLAS)beam tube systemcarbon dioxide ( CO2 ) monitoring systemwastespontaneous combustible
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 36-39 )