Abstract
Abstract An important problem in the operation of gas pipelines is the identification of accidental gas leakage from the damaged pipeline. It is the hardest when the leakage is small. A disadvantage of prior methods is that with their use is only possible to identify and locate significant outflow with only a low accuracy. In proposed method of identifying the gas flow will be used a new signal from the corrective element “r” attached to the tested pipeline and calculated from it and mass flow rate signals auto and cross power spectral density Sxx, Syy, Srr, Sxy, Sxr, Syr. Using the power spectral density signals allows for transition from the signal diagnostic to the parameter diagnostic which is more effective. Assumptions methods will be verified at the experimental station.
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