The structure of swirler in swirlmeter is changed.The corner dimension between inlet blades and basic shaft is changed into 45 from 60 and inlet blades into seven from six.

对进流量计中体的结构进了如下改进:体的叶片与主轴的夹角由原来的60°减小到45,°叶片由六片增加到七片。