五孔测球测流速场的数据采集与处理

Data Collection and Processing of Flow Field Measured by Five Hole Probe

五孔球测量流场时，传统方法是采用液柱法测孔压．文中介绍采用压力（差压）传感器测了孔压并通过计算机进行数据采集和数据处理的方法．使用情况表明，此方法较传统方法提高了测量精度，加快了测量速度，省人力，并能方便快捷地进行数据处理．

When a flow field is measured by five-holed probe, The traditional method is using the liquid column to measure hole pressure. This paper introduces a new measurement method using pressure (or differ-ential pressure) sensors to measure hole pressure and using micro-computer to collect and process the measure-ment data. It is indicated by practice that compared with the traditional method, the new method has higher measure precision, can shorten the measurement time, reduce the experiment people, and process the data very quickly and conveniently.