A multi-magneto-inductive sensor array system for real-time magnetic field imaging of ferromagnetic targets

Area of Science:

• Applied Physics
• Electrical Engineering
• Nondestructive Evaluation

Background:

• Magnetic field imaging is crucial for various applications, including medical diagnostics, security, and industrial quality control.
• Existing methods may lack real-time capabilities or require complex sensor configurations.

Purpose of the Study:

• To develop and demonstrate a real-time magnetic field imaging system.
• To utilize a multi-magneto-inductive (MI) sensor array for enhanced imaging performance.

Main Methods:

• Construction of a 3x3 tri-axial magneto-inductive (MI) sensor array.
• Implementation of a master-controller for data pre-processing and reconstruction.
• Real-time data streaming via USB for image generation at several frames per second.
• Leveraging knowledge of sensor response, field perturbations, and object properties (permeability, conductivity).
• Validation through numerical modeling using partial differential equations.

Main Results:

• Successful development of a functional real-time magnetic field imaging system.
• Demonstration of image generation at a rate of several frames per second.
• Validation of system performance through extensive numerical modeling.

Conclusions:

• The developed system offers a viable solution for real-time magnetic field imaging.
• The system has broad potential applications in medicine, security, quality assurance, and research.
• This technology advances nondestructive evaluation techniques.