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Updated: May 6, 2026

High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition
Published on: June 27, 2025
Measurement and control systems for an imaging electromagnetic flow metre
Y Y Zhao1, G Lucas2, T Leeungculsatien2
1School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China; School of Computing and Engineering, University of Huddersfield, Huddersfield HD1 3DH, UK.
A new imaging electromagnetic flow metre (IEF) reconstructs liquid velocity profiles using
Area of Science:
- Fluid dynamics
- Electromagnetism
- Instrumentation
Background:
- Electromagnetic flow metres (EMF) measure mean liquid velocity in single-phase flows.
- Conventional EMFs are limited to axisymmetric flows and cannot capture velocity profiles.
- Non-uniform velocity profiles require advanced measurement techniques.
Purpose of the Study:
- To develop and describe a novel imaging electromagnetic flow metre (IEF) for velocity profile measurement.
- To demonstrate the capability of IEF for non-uniform single-phase flows.
- To integrate the IEF with a microcontroller for standalone operation.
Main Methods:
- Development of an Imaging Electromagnetic Flow metre (IEF).
- Application of 'weight value' theory for velocity profile reconstruction.
- Interfacing the IEF with a 'Microrobotics VM1' microcontroller.
Main Results:
- The novel IEF successfully reconstructs liquid velocity profiles.
- Demonstration of velocity profile measurement in non-uniform flows.
- Successful integration and standalone operation with a microcontroller.
Conclusions:
- The Imaging Electromagnetic Flow metre (IEF) is a viable instrument for liquid velocity profile measurement.
- IEF technology is well-suited for microcontroller-based control.
- This advancement enables more detailed flow analysis in various industrial applications.
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