Research Progress on Optimization Techniques for Electromagnetic Flowmeters: A Review

As a common volume flow measuring instrument, an electromagnetic flowmeter (EMF) is widely used in various fields and plays an important role. With the development of EMFs in the direction of complex fluid measurement, further improving their measurement accuracy is becoming increasingly urgent. The optimization research of EMF is the key to reducing measurement error and eliminating the influence of interference noise. This article reviews the latest optimization technology for circular pipeline EMFs. First, the optimization technology of the EMF sensor is introduced, including the optimization of the excitation coil and signal electrode. Then, the optimization technology of the EMF converter is discussed, including the optimization of signal excitation mode and signal processing method. Finally, the future development trend of EMF optimization technology is discussed, and the work is summarized. This review compares different optimization techniques for EMFs and demonstrates their effectiveness in improving flow measurement accuracy. This article can provide valuable research references for researchers in the field of instrumentation who use EMF optimization technology to measure single-phase flow or multiphase flow to keep in touch with the latest research progress in this field.