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.

对进涡流量计中涡发生体结构进了如下改进:将涡发生体叶片与主角由原来60°减小到45,°将叶片由六片增加到七片。