Pipeline Leak Detection

 

Underwater pipeline

Hydrophones can be used as acoustic leak detectors. They identify the sound or vibration induced by water escaping from pipelines under pressure. When pressurized water leaks from a pipe it creates a sound or an acoustic signal that can travel through both the pipe wall and the water column in the pipeline. Most of the existing acoustic leak-detection techniques rely on external measurements of sound emitted from the turbulent jet of water escaping the pipe.