What is a common method for detecting leaks in pipelines?

Acoustic monitoring is an effective method for detecting leaks in pipelines because it relies on the principle of sound. When there is a leak in a pipeline, the pressurized fluid escaping generates unique sounds or vibrations that can be detected by specialized acoustic sensors. This technique allows for real-time monitoring and can identify leaks even when the pipeline is buried or difficult to access, making it particularly valuable for maintaining the integrity of various types of pipelines.

In contrast, visual inspection, while useful for identifying certain surface issues, may not detect leaks hidden underground or within walls. Pressure testing is a reliable method for checking the integrity of a pipeline by measuring its ability to hold pressure, but it is more of a preventative measure than a method for ongoing leak detection. Thermal imaging is beneficial for identifying temperature changes that could indicate a leak, especially in hot water or steam systems, but it can be less effective in certain conditions and may not provide the same level of specificity as acoustic monitoring.