Study on the Dual-Frequency Excited Electromagnetic Flowmeter

Abstract:

A time-division dual-frequency excitation scheme was proposed as an improvement to the traditional electromagnetic flowmeters. The proposed scheme keeps the advantage of zero-point stability of the traditional design, the immunity to low frequency noise is enhanced, and the response to fast change of fluid velocity is improved. A prototype flowmeter was made based on the proposed design, experiment results show that the prototype flowmeter can measure water flow in a wide velocity range with satisfactory accuracy.

• Periodical: Applied Mechanics and Materials (Volumes 241-244)
• Pages: 571-575
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.241-244.571
• Online since: December 2012
• Authors: Tie Jun Liu*, Yin Jia Chen
• Keywords: Dual-Frequency Excitation, Square Wave Excitation, Time-Division Dual-Frequency, Zero-Point

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