传统的涡街流量计对管径雷诺数R_eD<10⁴时的流量不能测量,且仪表的耐震性差,遇到安装地点震动或管道振动的场合,则测量结果经常失真,不能保证准确性,并且仪表的安装条件苛刻。文中介绍了基于电磁检测法的电磁涡街流量计的原理、设计及如何克服上述缺点的举措。

Although traditional vortex flowmeter has been widely used in industry,there are still some defects in it. Firstly,it can not precisely measures flow rate of fluid uneless the Reyonolds num-ber of fluid is greater than ten thousand thousand ;Secondly,the flowmeter's property of vibrance-resisting is poor, so the measuring outcome usually distorts in strong-vibrating field.The electromagnetic vortex flowmeter whose structure and principle are decribed in detail in this paper can overcome these defects.