旋進(jìn)旋渦流量計(jì)取壓方式對(duì)測(cè)量結(jié)果的影響

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【摘要】本文采用負(fù)壓法音速噴嘴氣體流量標(biāo)準(zhǔn)裝置，分析研究了旋進(jìn)旋渦流量計(jì)不同取壓方式對(duì)測(cè)量結(jié)果的影響。研究結(jié)果表明，表體取壓壓損最小且表體取壓方式的線性度優(yōu)于表前取壓和表后取壓。

【關(guān)鍵詞】旋進(jìn)旋渦流量計(jì)；表體取壓；表前取壓；表后取壓

【DOI編碼】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

旋進(jìn)旋渦流量計(jì)采用先進(jìn)的微處理技術(shù)，具有功能強(qiáng)大、流量范圍廣、操作維修簡(jiǎn)單、安裝使用方便等優(yōu)點(diǎn)。（剩余2405字）