Measurement of pulsating fluid flow in a pipe by means of orifice plates, nozzles or Venturi tubes, in particular in the case of sinusoidal or square wave intermittent periodic-type fluctuations
Описание (англ.):
Applies to periodical flow from a single source of fluctuations, which remains always unidirectional through the pressure-difference device. Gives practical criteria for ensuring that the systematic relative error on the mean rate of flow calculated from the measurement of a pulsating flow cannot exceed a specified percentage, particularly in the case of sinusoidal fluctuations or square wave intermittent periodic-type fluctuations.