2003
DOI: 10.1063/1.1627110
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3He Vapour-Pressure Measurements at PTB

Abstract: The paper reports on extensive 3 He vapour-pressure measurements carried out at PTB. To investigate in detail the main error sources, three different types of vapour-pressure cells and three different arrangements of pressuresensing tubes were used. In the temperature range from 0.65 K to 1.2 K, the repeatability of the realisation of 3 He vapour-pressure temperatures T 90 according to the International Temperature Scale of 1990, ITS-90, over eight runs was of order of 0.12 mK, whereas the repeatability over f… Show more

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Cited by 2 publications
(1 citation statement)
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“…Any heat input to the pressure tube (e.g. via the flanges) influences the HPC and hence the calculated pressure at the centre of resonator, a knowledge of the zero of which is important in RIGT [2] and other low-temperature measurements [3,36]. To estimate this effect on the pressure tube, the effect of heating on the section VT-3 was simulated 2 .…”
Section: Heating Effectmentioning
confidence: 99%
“…Any heat input to the pressure tube (e.g. via the flanges) influences the HPC and hence the calculated pressure at the centre of resonator, a knowledge of the zero of which is important in RIGT [2] and other low-temperature measurements [3,36]. To estimate this effect on the pressure tube, the effect of heating on the section VT-3 was simulated 2 .…”
Section: Heating Effectmentioning
confidence: 99%