Temperature inhomogeneity in the MSL primary pressure standard during operation |
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| P. D. McDowall |
- Abstract:
- We report on our initial investigations into directly measuring the temperature gradient across a DHi piston-cylinder unit. A PRT in contact with the top of the piston was compared to measurements taken in the mounting post that houses the cylinder. The temperature difference between the two PRT’s was used to estimate the temperature gradient across the piston-cylinder unit. Effects of rotating the piston and operating under vacuum, and their impact on the piston-cylinder temperature, were investigated. The results can be used to inform the uncertainty budget for temperature inhomogeneity in the MSL primary pressure standard.
- Download:
- IMEKO-TC16-2023-01.pdf
- DOI:
- 10.21014/tc16-2023.01
- Event details
- IMEKO TC:
- TC16
- Event name:
- TC16 Conference 2023
- Title:
7th Conference on Pressure and Vacuum Measurement (together with the CCM - the Consultative Committee for Mass and Related Quantities of the BIPM)
- Place:
- Washington DC, UNITED STATES
- Time:
- 15 May 2023 - 19 May 2023