A T-SHAPED VORTEX SHEDDER FOR A VORTEX FLOWMETER

被引：30
作者：
MIAU, JJ
YANG, CC
CHOU, JH
LEE, KR
机构：
[1] Natl Cheng-Kung Univ, Tainan, Taiwan
来源：
FLOW MEASUREMENT AND INSTRUMENTATION | 1993年 / 4卷 / 04期
关键词：
VORTEX SHEDDER; VORTEX FLOWMETER; T-SHAPED;
D O I：
10.1016/0955-5986(93)90033-F
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A configuration of a T-shaped vortex shedder is developed with the goal of improving the quality of the vortex shedding signal measured. This T-shaped vortex shedder comprises a trapezoidal cylinder which is fixed in shape and an extended plate attached behind whose length is variable. The vortex shedding frequency is deduced from the differential pressure signal measured, which corresponds to the pressure difference resulting from the two sides of the trapezoidal cylinder. By varying the length of the extended plate, the optimal situation is found to be when the length of the extended plate falls in the range of 1.56 to 2.0 times the width of the vortex shedder, when the low-frequency variations embedded in the pressure signal are significantly suppressed.
引用
收藏
页码：259 / 267
页数：9
相关论文
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