The development of instrumentation for the measurement of relative humidity within building microenvironments

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Baker, P.H. and Galbraith, G.H. and Sanders, C.H. and McLean, R.C. (2006) The development of instrumentation for the measurement of relative humidity within building microenvironments. Measurement, 39 (6). pp. 565-574. ISSN 1873-412X (http://dx.doi.org/10.1016/j.measurement.2005.11.02...)

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Abstract

Epidemiological evidence suggests that the presence of biocontaminants within buildings, such as dust mites and microfungi, can have a detrimental effect on the well-being of occupants. As a result, considerable attention has been focussed over the past few years on the measurement of the environmental conditions within biocontaminant microenvironments, which may have a spatial scale of only a few millimeters. Until recently, the major restriction in this regard was the lack of a humidity sensor with the necessary spatial resolution. The recent availability of microchip-based sensors has removed this restriction. This paper reports on the development of a humidity measurement system for microenvironment investigations. It also describes the validation of the system through a series of laboratory experiments and the novel application of a dynamic heat and mass simulation model as a suitable means of interpreting measured data.

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