2D flow model for calculating effective area of piston-cylinder units
DOI:
https://doi.org/10.21014/acta_imeko.v9i5.992Abstract
A 2D flow model is described for calculation of the effective area (A) of pressure-measuring piston-cylinder units (PCU) based on their dimensional properties. With the 2D model, the uncertainty contribution associated with PCU's axial non-symmetry can be eliminated and the uncertainty of A can be reduced. The 2D model is applied to several primary PCUs operated in absolute and gauge pressure modes with different pressure-transmitting media. The benefit of the 2D model in dependence on PCU's geometrical perfectness is discussed.Downloads
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2020-12-31
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