P. Otal, I. Morgado1, D. Steindl, N. Medina Martín, A. Lefkopoulos, A. Altintas, L. Grgec Bermanec, S. Bursic, J. Setina, M. Bergoglio, I. Spohr, C. Wüthrich, M. Rantanen, C. Vámossy, W. Sabuga, I. Koçaş
Fifteen European metrological institutes have compared their approaches to estimate the effective area parameters resulting from the calibration of pressure balances by cross-floating. The methods in estimating these parameters and the associated uncertainties are tested by applying four calibration data sets simulated numerically, two in gas (up to 10 MPa) and two in oil (up to 500 MPa). The performance of the methods is evaluated in terms of robustness and ability to estimate the uncertainties of the effective area parameters.
Keywords: pressure balance, effective area, cross-float, pressure distortion coefficient