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Title: Mass Meters For Liquid Measurement
Author: Ed Otto
Source: 2005 International School of Hydrocarbon Measurement
Year Published: 2005
Abstract: Coriolis mass meters were introduced to industry in the early 1980s and have gained wide acceptance as accurate and reliable flow measuring devices. Today Coriolis meters are recognized as one of the more significant, estimated shipments of 100,000 units in 2005, and fastest growing of the new technology flowmeter types. Several factors have contributed to the growth and acceptance of Coriolis meters. A major factor contributing to their popularity is the basic means by which Coriolis meters measure fluid flow. Coriolis meters measure mass flow directly. By directly measuring fluid mass, Coriolis meters eliminate the need to compensate for pressure and temperature thereby reducing the potential for measurement error. The result is improved accuracy. Multivariable measuring capability further enhances the versatility of a Coriolis flowmeter. In addition to measuring mass flow, fluid density and temperature are also measured and transmitted. Coriolis meters use the primary measurements of fluid mass and density to determine and output volumetric flow rate. With accurate measurement, application versatility and no moving parts to wear as attributes, Coriolis meters have gained acceptance as viable meter type for liquid hydrocarbon custody transfer. Confirming this trend is the October 2002 Measurement Standards Publication by the American Petroleum Institute for Measurement of Liquid Hydrocarbons by Coriolis Meters. The following discussion seeks to enhance the readers understanding of Coriolis technology and general considerations for applying Coriolis meters for the measurement of liquid flow.

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