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Title: Systematic Error Of Gas Flow Rate Measurement Caused By Flow Pulsation
Author: Roman Fedoryshyn Fedir Matiko Ihor Kostyk Yevhen Pistun
Source: 2015 International Symposium on Fluid Flow Measurement
Year Published: 2015
Abstract: This work deals with investigation of influence of flow pulsation on the accuracy of gas flow rate and volume measurement by means of the differential pressure flow meters. Experimental studies of the step response curves of an impuls e line with a pressure transducer (PT) were carried out with application of a high - frequency analog - to - digital converter of the pressure signal in the PT chamber. Mathematical model of an impulse line with a PT was built. This model provides simulati o n and investigation of the transient processes with high accuracy. The influence of the impulse line design (length, diameter) on the step response curves and on the frequency response curves as well as on the resonant frequency of the oscillating system (an im pulse line with a PT chamber) was studied.

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