| 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. |
| Citation: |
Ptb-Mitteilungen |
| Volume: |
45 |
| Issue: |
10 |
| 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: |
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 (38KB) |
