In order to enhance the impact of the composite structure of the integration of real-time positioning and monitoring systems,fuel monitoring system developed a set of integrated monitoring system for the impact location PXI bus-based architecture designed based on four-channel launch trigger programmable gain amplifier and acoustic charge PXI bus. plug-in hardware weak charge signal is converted to a voltage signal,automated fuel management system and to achieve four amplification control and filtering and produces ultra-wideband multi-channel signal threshold trigger signal.
Integrated software development platform based on VC ++, and Matlab localization algorithm for controlling the hardware to work and deal with the collected sensor signal arrival time positioning algorithm uses the modified between the sound source and the sensor to assess the state of the structure.
According to the four-point arc impact source coordinate positioning algorithm. Finally,mechanical fuel level gauge ， in the aircraft fuel tank of carbon fiber composite material structure of the function of the system is verified research results show that the system can impact the structure of on-line monitoring, and accurately determine the impact position error is less than 2cm. The system highly integrated, compact, easy to carry, is conducive to passive monitoring of engineering applications.
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