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Title: Ultrasonic Meter Repeatability And Reproducibilty
Author: T.M. Kegel
Source: 2013 Ultrasonic Meter User's Workshop (Denver)
Year Published: 2013
Abstract: This paper describes data, discusses analytical results and presents a mathematical model that relates recalibration shift, meter size, velocity, and recalibration time interval. The results can be applied as a tool to assist in determining an appropriate recalibration interval for an ultrasonic meter. The database supporting this project is a result of twelve years of history in the operation of an ultrasonic gas flow calibration facility. The database includes 95 recalibration events, recalibration time intervals from less than one year to nine years, meter sizes from DN100 to DN500, and gas velocities between 3 and 30 m/s.

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