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Flow Measurement in Hydraulic System Using Acoustic Emission

Flow rate is one of the most important parameters in hydraulic systems. This paper present a non-interposition flow measurement method for hydraulic systems, based on Acoustic Emission (AE) technology, by fixing an AE detector after the bend of the pipelines. The relationships between AE signals and the flow rate were investigated. Results show that the Root-Mean-Squared (RMS) values of the AE signals and AE energy could be used in hydraulic system, for flow measurement under specified system.