The technology of mixed gas detection in fuel tank based on tunable diode laser absorption spectroscopy

Aircraft fuel tank fuel explosion is a threat to aviation safety is one of the main factors. The Federal Aviation Administration (FAA) recently to the airworthiness regulations was revised, the provisions of the aircraft fuel tank in the upper space of oxygen content, in order to ensure the safety of flight. This paper analyses the aircraft fuel tank mixed gas combustion causes general fuel inerting system are introduced. And for the lack of real-time detection of oxygen shortcomings, introduces a kind of non contact of the mixed gas detection technology. Through simulation and preliminary exploration of the feasibility of the technique.