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Title: A Hybrid Technique For Calibrating Flowmeters With Compressible Fluids
Author: Thomas m. Kegel
Source: 1999 Measurement Science Conference
Year Published: 1999
Abstract: Flowmeters for compressible fluids can be calibrated by one of two basic methods: primary or secondary. A primary calibration involves comparison with a system based only on primary measurements (mass, length and time). A secondary calibration involves comparison with a transfer standard that has been characterized by a primary system. Primary calibrations are more costly and have lower associated uncertainty than secondary calibrations. This paper describes a hybrid calibration technique that has lower cost than a primary calibration and lower uncertainty than a secondary calibration. An analysis of the uncertainty is proposed that is based on a novel application of a traditional statistical technique.

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