Air pressure is measured by a barometer. 空气压力用气压计度量。
This paper put forward a simple and quick calculation method for wet air by precision barometer and psychrometer according to the relation theory of physical parameters of wet air, and derived a mathematical model for calculating the relative humidity of wet air and partial pressure of saturated vapor. 从湿空气的物理参数关系理论出发,提出了使用精密气压计和干湿球温度计测算湿空气密度的快速简便方法,推导出了求解湿空气的相对湿度及饱和水蒸气分压力的数学模型。