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- W3040252079 abstract "Abstract Electromagnetic Flowmeter is widely used in industrial production and life, because it is characterized by high precision and little environmental interference in electromagnetic flow measurement. However, the commonly used low frequency rectangular wave excitation greatly reduces the measurement accuracy and measurement range of electromagnetic flowmeter due to in-phase interference, differential interference and other factors. Double-frequency trapezoidal wave excitation has the advantages of both excellent zero-point stability of low frequency excitation and strong ability to suppress the noise of slurry fluid and fast response speed of high frequency excitation. In this paper, a double-frequency trapezoidal wave excitation method for electromagnetic flow measurement is proposed. Then the experimental platform is established to verify the measurement accuracy and measurement range. According to the comparison with the instant flow of the standard meter, the measurement accuracy of double-frequency trapezoidal wave excitation is significantly higher than that of low frequency rectangular wave excitation, and in phase interference and differential interference are significantly reduced." @default.
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- W3040252079 date "2020-06-01" @default.
- W3040252079 modified "2023-09-28" @default.
- W3040252079 title "Research on Electromagnetic Flowmeter Based on Double-frequency Trapezoidal Wave Excitation" @default.
- W3040252079 doi "https://doi.org/10.1088/1742-6596/1549/5/052086" @default.
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