Electromagnetic Flow Detection Technology Based on Correlation Theory

被引：15

作者：

Ge, Liang ^{[1
,2
]}

Li, Hailong ^{[1
]}

Huang, Qi ^{[1
]}

Tian, Guiyun ^{[3
]}

Wei, Guohui ^{[2
]}

Hu, Ze ^{[4
]}

Ahmed, Junaid ^{[5
]}

机构：

[1] Southwest Petr Univ, Dept Mech & Elect Engn, Chengdu 610500, Peoples R China

[2] Southwest Petr Univ, Res Inst Artificial Intelligence, Chengdu 610500, Peoples R China

[3] Newcastle Univ, Sch Engn, Newcastle NE1 7RU, England

[4] Southwest Petr Univ, Sch Elect & Informat Engn, Chengdu 610500, Peoples R China

[5] Sukkur IBA Univ, Elect Dept, Sukkur 65200, Pakistan

来源：

IEEE ACCESS | 2020年 / 8卷

基金：

英国工程与自然科学研究理事会;

关键词：

Correlation detection; electromagnetic flow measurement; interference suppression; lock-in amplification; weak signal detection; FLOWMETER; AMPLIFIER;

D O I：

10.1109/ACCESS.2020.2982474

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

When the electromagnetic flowmeter (EMF) is applied to the industrial field, the effective flow signal of the electrode output is easily drowned out by the noise under the condition of strong noise and flow rate lower than 0.2 m/s. However the flow signal drowned out in strong noise cannot be measured accurately by traditional electromagnetic flow detection technology, which cannot separate signal and noise effectively. The correlation technology can be applied to select the reference signal with the same regularity as the target signal to separate the target signal and remove the noise. Firstly, researches on the correlation detection and the basic correlation theory of the electromagnetic flowmeter are carried out. Then, the design of the electromagnetic flow measurement system based on the theoretical research is completed. Finally, in order to verify the performance and accuracy of the designed flow measurement system, a test platform for electromagnetic flow detection is set up, and the verification experiments are implemented. The experiment results show that the electromagnetic flow measurement system based on the correlation theory can not only meet the requirements of traditional flow measurement but also have unique advantages in suppression of strong noise interference, slurry flow measurement, and low flow rate measurement.

引用

页码：56203 / 56213

页数：11

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