Leak Identification Quantification and Detection System (LIQDS)

"We propose to develop a sensor system "Leak Inspection, Quantification and Detection System - LIQDS" that will detect fluid leaks, pinpoint the leak location coordinates, identify the type of fluid and quantify the leakage rate and achieve this remotelywithout inserting a sensor at the location of leak. Such a system will be extremely useful for the new generation aircraft being developed including the F-22 and Joint Strike Fighter.The effectiveness of a system is only as good as its weakest link and hence it is critical to improve subcomponent reliability. Current on board health monitoring systems do not have the sensitivity to detect slow fluid leaks. This reduces confidence inthe health status mandating scheduled manual inspections. This technology would allow early detection of fluid leaks thereby avoiding serious damage to subsystem components and improving health of the system. Remote leak detection is critical for applications in modern aircraft industry and also in process plants and other fluid transportation industry. In-situ sensors and wiring could reduce overall system reliability and hence a remote monitoring system hasgood potential in future health monitoring and condition based maintenance systems. We intend to integrate this LIQDS system eventually into existing health monitoring systems."