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Finds the measurement uncertainty of gas
orifice and venturi flow systems.The gas uncertainty calculation finds
uncertainty in a system where differential pressure transmitters are
used to measure the pressure drop across an orifice plate or a venturi
flow meter.
References
International Standard ISO5167-1 First
Edition:1991, Measurement of fluid flow by means of pressure
differential devices – Part 1. Orifice plates, nozzles and Venturi
tubes inserted in cross-section conduits running full.
British Standard BS1042 Section 1.1:1992,
Measurement of fluid flow in closed conduits Part 1. Pressure
differential devices – Section 1.1 Specification for square-edged
orifice plates, nozzles and Venturi tubes inserted in circular
cross-section conduits running full.
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