Natural gas engine fuel flow detection system

The invention relates to a natural gas engine fuel flow detection system, which belongs to the technical field of natural gas engine detection, and comprises an acquisition assembly, a signal conditioning module, a micro-control module, a multi-way pipeline output interface, an upper computer, a voltage conversion module and a vehicle-mounted power supply connector, the acquisition assembly acquires various operation data of natural gas in a fuel supply pipeline for providing natural gas fuel for a natural engine in a vehicle state and sends the acquired various operation data to the single-chip microcomputer, and the single-chip microcomputer carries out temperature compensation and pressure compensation on gas flow to obtain mass flow data; the mass flow data is transmitted to the upper computer for analysis and drawing display, the fuel flow detection of the natural gas engine in the vehicle state is realized, in addition, the volume is small, and temperature and pressure compensation can be carried out wh