旋进旋涡流量计取压方式对测量结果的影响

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【摘要】本文采用负压法音速喷嘴气体流量标准装置，分析研究了旋进旋涡流量计不同取压方式对测量结果的影响。研究结果表明，表体取压压损最小且表体取压方式的线性度优于表前取压和表后取压。

【关键词】旋进旋涡流量计；表体取压；表前取压；表后取压

【DOI编码】10.3969/j.issn.1674-4977.2024.02.060

Influence of Pressure Taking Mode of Vortex Precession Flowmeter on Measurement Results

FAN Zhenxing

（Henan Institute of Metrology， Zhengzhou 450008， China）

Abstract： This article uses a negative pressure sonic nozzle gas flow standard device to study the influence of different pressure tapping methods on the measurement results of the vortex precession flowmeter. The research results indicate that the pressure tapping at the meter body has the least pressure loss and the linearity of the pressure tapping at the meter body is better than the pressure tapping at the upstream and downstream positions of the meter.

Keywords： vortex precession flowmeter； surface body pressure； take pressure before the table； take the pressure behind the meter

0引言

旋进旋涡流量计采用先进的微处理技术，具有功能强大、流量范围广、操作维修简单、安装使用方便等优点。（剩余2405字）