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Title: Study Of Thermal Effect On Calibration Of An Ultrasonic Flow Meter
Author: Ching-Yi Kuo Jiunn-Haur Shaw Chun-Min Su
Source: Flomeko 2013
Year Published: 2013
Abstract: primary high pressure air flow measurement standard was constructed at Center for Measurement Standards (CMS) in Taiwan with a capacity of 18000 m3/h and pressure range of 1 to 60 bar. With present calibration setup, the temperature of air flowing through the meter under test (MUT) decreased significantly during a test. To reduce thermal effect during meter calibration, improvements have been made by expanding the upstream air storage tank from 19 m3 to 34 m3, and installing a new compact sonic nozzle array (CSNA) downstream of the MUT as a new working standard (WS). A re-circulating loop at CMS was retrofitted and completed at the end of 2012

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