Dynamic Characteristics of a Bypass Type Flowmeter

Abstract

Dynamic characteristics of a bypass type flowmeter in pulsating flow and in transient flow were studied analytically and experimentally. (1) Parameters which influence measurement errors of the mean flow rate of pulsating flow with the bypass type flowmeter were clarified. (2) Depending on the configuration of the bypass passage, there were cases where the measured value of mean flow rate was larger than the true value and where it was less; a suitable configuration of the bypass passage should be used, to obtain a value that is close to the true one. (3) Parameters which influence response of the flow in the byapss passage during accelerating or decelerating flow were clarified.