Abstract

Pulsation intensity Γ is defined as the ratio of extreme flow variation to average flow. An intensity Γ = 0.1 is recommended as a practical pulsation threshold below which the performance of all types of flowmeters will differ negligibly from the mathematical ideal of steady flow. An equation suitable for estimating the error range at various intensities is presented, and the problems of correlation of attenuator performance and meter response are considered.

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