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Mutual Inductance

Mutual Inductance

Inductance is the property of a device that tells us how effectively it induces an emf in another device. In other words, it is a physical quantity that expresses the effectiveness of a given device.
When two circuits carrying time-varying currents are close to one another, the magnetic flux through each circuit varies because of the changing current in the other circuit. Consequently, an emf is induced in each circuit by the changing current in the other. Therefore, this type of emf is called...

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Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Published on: June 9, 2016

Multichannel simultaneous magnetic induction measurement system (MUSIMITOS).

Matthias Steffen¹, Konrad Heimann, Nina Bernstein

¹Philips Chair of Medical Information Technology, RWTH Aachen University, Aachen, Germany. steffen@hia.rwth-aachen.de

Physiological Measurement

|June 12, 2008

Summary

This study presents a novel non-contact magnetic induction system (MUSIMITOS) for simultaneous heart and lung monitoring. The system demonstrates technical feasibility for clinical applications, offering a supplement to conventional methods.

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Area of Science:

Biomedical Engineering
Medical Device Technology
Physiological Monitoring

Background:

Conventional monitoring methods for heart and lung activity have limitations.
Non-contact monitoring offers a desirable alternative or supplement.
Magnetic induction holds potential for non-contact physiological measurements.

Purpose of the Study:

To develop an extendable multichannel simultaneous magnetic induction measurement system (MUSIMITOS).
To address the dynamic behavior and simultaneous multichannel measurement requirements for physiological monitoring.
To present a real-time software concept for online signal processing and visualization.

Main Methods:

Development of the MUSIMITOS system with up to 14 receiver coils.
Utilizing 6 excitation frequencies for simultaneous measurements.
Implementing a real-time software for signal processing, visualization, and demodulation.

Main Results:

The MUSIMITOS system supports simultaneous measurements from multiple receiver coils.
The system is designed to handle dynamic physiological signals.
Initial in vivo measurements and technical performance evaluations were conducted.

Conclusions:

The MUSIMITOS system provides a foundation for non-contact heart and lung monitoring.
The developed system shows promise for clinical applications.
Further development and validation are ongoing for this advanced monitoring technology.