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Title: Mass Meters For Liquid Measurement
Author: Alan Young
Source: 1989 International School of Hydrocarbon Measurement
Year Published: 1989
Abstract: Process industries increasingly are adopting flow rate measurements based on mass rather than volume or flow velocity to better control the operating economy of their processes. Flow measurements based on flow velocity or volume are subject to measurement error that occur when a fluids chemical composition, temperature, pressure, viscosity, or density changes. The accuracy of conventional volumetric flow measurements is also affected by anything that changes the upstream or downstream flow velocity distribution or velocity profile across the pipe. The presence of entrained gas or solids, pulsating flow, or coatings that reduce the effective cross sectional area of the meter also degrades the accuracy of volumetric and flow velocity based measurements.

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