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Title: Flowmeter Dynamic Response Characteristics Part 1: Quantifying Dynamic Response
Author: David Wiklund, Marcos Peluso, Rosemount, Inc.
Source: 2002 International Symposium on Fluid Flow Measurement
Year Published: 2002
Abstract: A common method for selecting a flowmeter is to compare how the devices under consideration perform using a specified set of metrics. Perhaps the most universally employed metric is the uncertainty in the measurement of the flow rate. The measurement uncertainty of a flowmeter is an easily understood parameter and is usually specified by manufacturers. Moreover, the uncertainty is relatively straightforward to verify in the laboratory under conditions in which the flow profile is controlled and the flow rate is steady. A more meaningful comparison of the devices can be made if their response to flow transients is included as a metric. Such a comparison is complicated by incomplete and sometimes incorrect specification of the dynamic response characteristics of flowmeters. The purpose of this paper is to describe a method for determining the dynamic response performance characteristics of flowmeters and quantify these characteristics for a number of different flowmeter technologies.

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