双钝体涡街流量计流体振动特性研究  

Research on Vibration Characteristic of Dual Bluff Body Vortex Street Flowmeter

作　　者：张平[1] 彭杰刚[1] 傅新[1] 陈鹰[1] 

机构地区：[1]浙江大学机电控制工程研究所,浙江杭州310027

出　　处：《机电工程》2001年第5期63-64,70,共3页Journal of Mechanical & Electrical Engineering

摘　　要：涡街流量计测量应用广泛,但小流量信噪比低、抗干扰性能差。本论文提出以双钝体组合强化流体振动,从而降低涡街流量计的计量下限,提高其抗干扰性能。通过实验研究获得了优化的双钝体组合,表明双钝体组合能达到强化流体振动和提高流量计信噪比的目的。Vortex flowmeter is a widely used hydro-vibration flowmeter. Its poor noise to signal ratio and anti-jamming ability, however, limit its application. The subject has made study in dual bluff body combination to consolidate the hydrodynamic vibration within the flowmeter. The optimum combination structure of the dual bluff body has been achieved by experiments. The results show that dual bluff body combination could strengthen the vibration and improve the noise-signal ratio of flowmeter.

关 键 词：涡街流量计 双钝体组合 流体振动 抗干扰性能 

分 类 号：TH814[机械工程—仪器科学与技术]