流速仪主要结构性能对测流精度的影响分析

Influence of Main Structures of Velocity Meters on Measurement Accuracy

介绍流速仪结构性能,主要是转子特性、旋转支承结构设计要求与旋转轴动态密封装置原理,对确保流速仪测量精度方面进行阐释,并通过国内外旋桨式流速仪的比测进行验证,还简要介绍了旋杯流速仪的旋转支承结构与发信部件特点,为仪器研发与使用者更了解流速仪的结构和确保测验精度方面提供参考。

The article introduces rotor, rotating bearing structure and rotating shaft dynamic seal devices, analyses there effects on measurement accuracy of velocity meters, by testing domestic and international propeller velocity meters,the article also describes the rotary support structure and the signal generator of cup-type current meters. The article provides references for instrument RD and the users to deeply understand the structure of the current meter and ensure its test precision.