Development of 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 technique 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 on USB, time control based on GPS positioning and so on. The real-time leakage location test and remote wireless leakage location test are realized for different kind of pipeline with different medium leak. The testing result proves that this instrument can detect the leakage of 1mm hole for 50 m pipeline and 3 mm hole for 100 mm pipeline under 0.4 MPa compressed air.