An Indirect Measuring Method with Self-Check Function for High-Frequency Pulsating Flow Rate

Abstract

An indirect measuring method with self-check function for high-frequency pulsating flow rate is proposed, and a measuring system based on the method is set up in this paper. The system can examine by means of its self-check function whether measured results of flow rate are accurate and reliable without using any other fluid measurement or flowmeters. The experimental results show that the system can be applied not only to the measurement of various unsteady flow rate signals, such as high-frequency pulsating flow or even nonperiodic random flow, but can also be used as a comparison standard for evaluating other measuring methods. The research provides an important measuring means for studying the dynamic characteristics of hydraulic components or systems and for developing new instantaneous flowmeters.