Development of a Pipeline Leakage Location Instrument Based on Acoustic Waves

A pipeline leakage location instrument based on acoustic method and correlation location of continuous signals was developed. This instrument uses a lot of advanced electronic techniques such as low-frequency acoustic emission sensor, high-speed acquisition of waveform of leakage signals, wireless data communication based on Internet, data high-speed communication-based USB, and time control based on GPS positioning. The real-time leakage location test and remote wireless leakage location test are realized for different kinds of pipelines with different medium leak. The testing result proves that this instrument can detect the leakage of 1 mm hole far from 50 m and 2 mm hole far from 100 m for steel pipeline under 0.4 MPa compressed air.