https://metrologyrules.com/uncertainty-of-measurement-pressure-dead-weight-tester/ For Metrologists by Metrologists Sun, 20 Aug 2023 12:59:37 +0000 hourly 1 https://wordpress.org/?v=4.0.38 https://metrologyrules.com/uncertainty-of-measurement-pressure-dead-weight-tester/#comment-3605 Tue, 20 Jun 2017 14:02:16 +0000 http://metrologyrules.com/?p=483#comment-3605 NIST measures the effective area A_e = A_0·(1+lambda·p) versus pressure at 10 pressures and uses linear least squares fitting to determine A_0, the distortion coefficient and their uncertainties. EURAMET Calibration Guide cg-3 (see pages 14 and 19) recommends the same approach.

]]> https://metrologyrules.com/uncertainty-of-measurement-pressure-dead-weight-tester/#comment-3604 Tue, 20 Jun 2017 04:00:43 +0000 http://metrologyrules.com/?p=483#comment-3604 How to calculate uncertainty of pressure distortion coefficient ?

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