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A roadmap for humidity and moisture measurement.

Bell, S A; Benyon, R*; Böse, N*; Heinonen, M* (2008) A roadmap for humidity and moisture measurement. Int. J. Thermophysics, 29 (5). pp. 1537-1543.

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An initial roadmap for humidity and related measurements was developed in Spring 2006 as part of the EUROMET iMERA activity towards increasing impact from national investment in European metrology R&D. The conclusions address both humidity (for which standards and traceability methodologies exist, but will need to develop) and moisture content of materials (for which measurement traceability is more problematic and not so well developed in general). The Roadmap represents a shared vision of how humidity and moisture measurement and standards should develop over the next 15 years to meet future needs, open to revision as needs and technologies evolve.

The roadmap identifies main social and economic triggers driving developments in humidity and moisture measurement and standards ¿ notably global warming, and advanced manufacturing processes. Stemming from these triggers, key targets are identified which require improved humidity and moisture measurements.

In view of global warming, one key target is the development of improved models of climate, through improved measurements of atmospheric water vapour. A further target is the reduction of carbon emissions, through use of humidity measurements to optimise industrial heat treatment and combustion processes, and through humidity and moisture measurement to achieve energy-efficient buildings. For high-performance manufacturing, one key target is improved precision control of manufacturing processes through better humidity and moisture measurements. Another key target is contaminant-free manufacture in industries such as microelectronics, through high-purity gases of known moisture content at the parts-per-trillion level.

To enable these outcomes, the roadmap identifies the advances needed in measurement standards. These include: improved trace humidity standards; new humidity standards to cover high temperatures and pressures, steam, and non-air gases; and improved standards for moisture content of materials. Technologies that are likely to be harnessed are also identified, such as emerging laboratory techniques, existing and new research-grade hygrometers, hygro-thermal modelling, and nanotechnology.

Item Type: Article
Keywords: humidity, moisture, roadmap
Subjects: Engineering Measurements
Engineering Measurements > Thermal
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/4236

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