The leakage of the oil pipeline leads to huge asset loss of national economy

as well as the huge environmental pollution.So the inspection technology for oil leakage becomes very important.A real-time monitoring & positioning system for oil pipelines leakage is designed.In the syetem

the datas of temperature

pressure and flow are collected on both sides of the pipeline and transmitted through the LAN in the oil corporation.The datas are comprehensively analyzed and processed to accomplish the leakage alarming and positioning the theory of the negative pressure wave method and some key technical problem are introduced.The software design of the system is accomplished based on LabVIEW.The system can work well in field testing.