The Research of Small Leakage Diagnostic Technique for Liquid Delivery Pipeline

The small leakage diagnostic method based on negative pressure wave method for Liquid delivery pipeline is introduced, which uses two ram circle-based uninterrupted data acquisition technique, GPS synchronizing technique, and can diagnose the small leakage effectively, orientate the leakage point precisely. The experiment has shown that the diagnostic system based on these techniques has high stability, reliability and diagnostic precision.