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Related Experiment Video

Updated: Feb 19, 2026

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Published on: November 7, 2017

Metal Solidification Imaging Process by Magnetic Induction Tomography.

Lu Ma¹, Stefano Spagnul², Manuchehr Soleimani³

¹University of Bath, Engineering Tomography Laboratory, Department of Electronic and Electrical Engineering, Bath, BA2 7AY, UK. l.ma@bath.ac.uk.

Scientific Reports

|November 8, 2017

Summary

This summary is machine-generated.

This study introduces magnetic induction tomography (MIT) for real-time imaging of metal solidification. This contactless technique enables in-situ monitoring of the process and measurement of solidified shell thickness.

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Area of Science:

Materials Science
Electromagnetism
Non-Destructive Testing

Background:

Contactless monitoring is crucial for enclosed objects, especially during metal solidification.
Existing real-time monitoring techniques for metal solidification are lacking.
Magnetic induction tomography (MIT) offers a potential solution for in-situ imaging.

Purpose of the Study:

To introduce and validate magnetic induction tomography (MIT) for real-time, in-situ imaging of metal solidification.
To demonstrate the feasibility of using an array of magnetic induction coils for tomographic imaging.
To achieve real-time visualization and measurement of solidified shell thickness.

Main Methods:

Utilized a single inductive coil to monitor inductance changes during wood alloy solidification.
Designed an array of magnetic induction coils for a tomographic approach (transmitter-receiver configuration).
Employed static cold phantoms to verify system performance with various liquid/solid interfaces.
Applied a temporal reconstruction method for real-time visualization.

Main Results:

Observed distinct phase changes in receiver coils as the wood alloy transitioned from liquid to solid.
Successfully verified system performance using static phantoms representing different solidification states.
Achieved real-time, in-situ visualization of the metal solidification process.
Demonstrated the measurement of solidified shell thickness, a novel capability.

Conclusions:

Magnetic induction tomography (MIT) is a viable technique for real-time, in-situ imaging of metal solidification.
The developed MIT system enables contactless monitoring and measurement of solidified shell thickness.
This work presents the first report of real-time in-situ visualization of metal solidification using MIT.