相对湿度
湿度
环境科学
计算机科学
气象学
物理
作者
J W Lovell-Smith,Hamish Pearson
出处
期刊:Metrologia
[IOP Publishing]
日期:2005-12-22
卷期号:43 (1): 129-134
被引量:7
标识
DOI:10.1088/0026-1394/43/1/018
摘要
Standard definitions of relative humidity ψ of a gas at temperature t and pressure P involve the ratio of some humidity quantity to the same quantity when the gas is saturated at the same temperature and pressure. These definitions do not apply under certain conditions, notably when the gas is pure unsaturated water vapour, and more generally when the theoretical saturation vapour pressure is greater than the actual pressure. The use of impedance-based relative humidity sensors to measure humidity under such conditions is increasingly common and consequently other less well defined definitions may be used over which there is some debate and confusion in the metrological community. In this paper we identify the source of the problem, explore possible definitions and champion a simple and useful definition of relative humidity which extends the traditional definition to cover the whole range.
科研通智能强力驱动
Strongly Powered by AbleSci AI