How rapidly can an electromagnet get magnetised and de-magnetised?

  • Thread starter Thread starter Peter Ahlman
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SUMMARY

The discussion centers on the rapid magnetization and demagnetization of air-core electromagnets, specifically targeting frequencies in the 10-100 GHz range. Participants emphasize the importance of avoiding hysteresis and retentivity effects, which are significant in ferromagnetic materials but negligible in air-core designs. Key references include the book "Ferromagnetism" by Bozorth and insights on the limitations imposed by inductance and wavelength at high frequencies. The conversation highlights the challenges of achieving precise magnetic field control at such elevated frequencies, particularly the need for clean square-wave pulsing without delay.

PREREQUISITES
  • Understanding of electromagnetic principles and the behavior of coils.
  • Familiarity with high-frequency signal generation techniques.
  • Knowledge of hysteresis and retentivity in magnetic materials.
  • Basic concepts of inductance and transmission line theory.
NEXT STEPS
  • Research "high-frequency RF signal generation" techniques for 10-100 GHz applications.
  • Explore "air-core inductor design" for optimal performance at microwave frequencies.
  • Study "square wave pulse generation" methods for high-frequency applications.
  • Investigate "GaAs technology" for generating clean square wave pulses at high frequencies.
USEFUL FOR

Engineers and researchers in electromagnetism, RF circuit designers, and anyone involved in high-frequency electromagnetic applications seeking to optimize air-core electromagnet performance.

  • #31
I'm sorry Peter, but I can't let this thread go on any longer. It is a waste of time. What you are trying to do is create a propulsion device using EM fields and the truth is it won't work. Please keep on learning as much as you can about EE and EM, because the more you know, the earlier you can reject ideas that won't work, and the sooner you can move on to other ideas that may have a chance of working.

Thread closed.
 

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