1. bookVolume 8 (2008): Issue 1 (February 2008)
Journal Details
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Format
Journal
eISSN
1335-8871
First Published
07 Mar 2008
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6 times per year
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English
Open Access

Water Vapour Effects in Mass Measurement

Published Online: 07 Mar 2008
Volume & Issue: Volume 8 (2008) - Issue 1 (February 2008)
Page range: 22 - 24
Journal Details
License
Format
Journal
eISSN
1335-8871
First Published
07 Mar 2008
Publication timeframe
6 times per year
Languages
English
Water Vapour Effects in Mass Measurement

Water vapour density inside the mass comparator enclosure is a critical parameter whose fluctuations during mass weighing can lead to errors in the determination of an unknown mass. To monitor them, a method using DFB laser diode in the near infrared has been proposed and tested. Preliminary results of our observation of water vapour sorption and de-sorption processes from the walls and the mass standard are reported.

Keywords

Giacomo, P. (1982). Equation for the determination of density of moist air (1981), Metrologia. 18, 33-40.Search in Google Scholar

Davis, R.S. (1992). Equation for the determination of the density of moist air (1981/91), Metrologia. 29, 67-70.Search in Google Scholar

Picard, A., Fang, H. (2004). Mass comparisons using air buoyancy artefacts. Metrologia. 41, 330-332.10.1088/0026-1394/41/4/015Search in Google Scholar

Chung, J. W., Chang, K. H., Lee, W. G., Kim, K. P. (2002). Air density determination using 1 kg buoyancy mass comparisons. In Proceedings of IMEKO (273-277). Celle, Germay.Search in Google Scholar

Hyland, R.W., Wexler, A. (1983). Formulations for the thermodynamic properties of the saturated phases of H2O from 173,15 °K to 473,15 °K. ASHRAE Trans. 89, Part IIA, 500-535.Search in Google Scholar

Lovell-Smith, J.W. (2006). On correlation in the water vapour pressure formulations. Metrologia 43, 556-56010.1088/0026-1394/43/6/011Search in Google Scholar

Khélifa, N. (2005). Air Moisture Measurement: The Indiscreteness of the Dew-Point hygrometer. In Proceedings of the 19th International Metrology Symposium (83-86). Opatija, Croatia.Search in Google Scholar

Khélifa, N., Guellati, S., Kerviel, P., Lecollinet, M. (2006). Capteur Optique pour le Contrôle de l'humidité de l'Air en Métrologie des Masses. Physical Chemistry News 28, 85-89.Search in Google Scholar

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