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|Author(s):||Douglas A. Olson; Shaker A. Gelany; Alaaeldin A. Eltawil;|
|Title:||Use of higher order Heydemann-Welch model to characterize a controlled clearance piston gauge|
|Published:||October 17, 2012|
|Abstract:||We present measurements on characterizing a new controlled-clearance piston gauge made by Ruska (Fluke Calibration) which has a 290 MPa maximum pressure and a nominal piston diameter of 3.27 mm. We tested the piston gauge to jacket pressures of over 80 % of the system pressure (but not exceeding 200 MPa). Measurements showed that the cylinder becomes stiffer as the jacket pressure increases, and that non-linear models of the Heydemann-Welch parameters improve the determination of the effective area. The relative standard uncertainty in the effective area of the piston gauge ranges from 16.0E-6 to 17.6E-6, and the agreement to the present NIST pressure scale is within the standard uncertainty.|
|Pages:||pp. 2469 - 2471|
|Keywords:||controlled clearance piston gauge, effective area, Heydemann-Welch, piston gauge, pressure, primary pressure standard|
|Research Areas:||Calibrations (Thermodynamic), Pressure & Vacuum, Pressure & Vacuum, SI (Thermodynamics Units)|
|DOI:||http://dx.doi.org/10.1016/j.measurement.2011.10.047 (Note: May link to a non-U.S. Government webpage)|
|PDF version:||Click here to retrieve PDF version of paper (39KB)|