| 刘月圆,梁玉娇,郑 盟,方立德.新型均速管涡街流量传感器的测量特性研究[J].电子测量与仪器学报,2022,36(12):10-18 |
| 新型均速管涡街流量传感器的测量特性研究 |
| Research on the measurement characteristics of a new type ofuniform velocity tube vortex flow sensor |
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| DOI： |
| 中文关键词: 均速管 涡街流量计 压电式 差压式 测量特性 |
| 英文关键词:uniform velocity tube vortex flowmeter piezoelectric type differential pressure type measurement characteristic |
| 基金项目:国家自然科学基金（62173122）、河北省自然科学基金重点项目（F2021201031）、京津冀协同创新共同体建设专项（20540301D）项目资助 |
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| Author | Institution |
| Liu Yueyuan | 1. School of Quality and Technical Supervision, Hebei University,2. National & Local Joint Engineering Research Center of Metrology Instrument and System, 3. Hebei Key Laboratory of Energy Measurement and Safety Testing Technology |
| Liang Yujiao | 1. School of Quality and Technical Supervision, Hebei University,2. National & Local Joint Engineering Research Center of Metrology Instrument and System, 3. Hebei Key Laboratory of Energy Measurement and Safety Testing Technology |
| Zheng Meng | 1. School of Quality and Technical Supervision, Hebei University,2. National & Local Joint Engineering Research Center of Metrology Instrument and System, 3. Hebei Key Laboratory of Energy Measurement and Safety Testing Technology |
| Fang Lide | 1. School of Quality and Technical Supervision, Hebei University,2. National & Local Joint Engineering Research Center of Metrology Instrument and System, 3. Hebei Key Laboratory of Energy Measurement and Safety Testing Technology |
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| 中文摘要: |
| 本文提出了新型均速管涡街流量传感器,实现差压与频率信号的双参数测量,并根据涡街信号的不同采集方式分为压
电式和差压式两种类型。 对两种一体化流量传感器的结构、原理以及信号采集方式进行了设计和阐述,并对其测量特性进行对
比分析。 结果表明,采用差压式流量传感器与经验小波变换(EWT)相结合,能将量程比由 10:1 拓宽至 140:1。 单相气最大测
量误差绝对值由 1. 46%减小至 0. 49%,重复性由 0. 17%降至 0. 05%,水流量最大测量误差绝对值也实现了从 1. 00%下降至
0. 49%,重复性低于 0. 07%。 与压电式流量传感器相比,差压式均速管涡街流量传感器在测量精度及测量范围中具有一定的应
用优势,为湿蒸汽测量提供了一种新思路。 |
| 英文摘要: |
| A new type of flow sensor integrated with uniform velocity tube and vortex is proposed in this paper, which can simultaneously
measure the dual-parameter measurement of the differential pressure signal and frequency signal. According to the different extraction
methods of the vortex signal, they are divided into piezoelectric type and differential pressure type. The structure, theory, signal
acquisition methods of the two flow sensors are mainly designed and expounded in this paper, and the measurement characteristics of
them are compared through gas and water. The experimental results show that the combination of the differential pressure flow sensor and
the empirical wavelet transform (EWT) can widen the range ratio from 10:1 to 140:1. The absolute value of the maximum measurement
error of single-phase gas is reduced from 1. 46% to 0. 49%, and the repeatability is reduced from 0. 17% to 0. 05%. The absolute value
of the maximum measurement error of water is also reduced from 1. 00% to 0. 49%, and the repeatability is lower than 0. 07%.
Compared with the piezoelectric flow sensor, the differential pressure uniform velocity tube vortex flow sensor has certain application
advantages in measurement accuracy and measurement range, and provides a new idea for wet steam measurement. |
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