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In view of the possibilities offered by having appreciable time delay in the magnetic domain, I have opened this as an EM theory topic. Creating delay along a core is quite simple involving a sequence of coils each shorted by a capacitor.
These magnetic delay lines have a unique feature in that their characteristic impedance is imaginary, E and H are in phase quadrature. Such imaginary impedance lines don't generally appear in EM texts so their performance is little known. Of significance to OU researchers is the fact that such a line terminated in a reactive impedance can exhibit a resistive input impedance, and more importantly the input resistance can be negative. And as every OU researcher knows a negative resistance represents an energy source. This leads to the possibility of an array of passive components being able to self-oscillate hence deliver free power. Of course if this ever materialized the power must come from somewhere and that would be the atomic dipoles within the magnetic core.
Professor Turtur has suggested that a PM generator terminated with a capacitive load can free run, and while his initial simulation has been shown to not do so, adding magnetic delay can be theoretically shown to do just that, allow the generator to free run.
Bucking coils in a magnetic circuit where there is significant propagation delay between the two coils produces a clockwise flux v. current characteristic, hence could output more energy than is put in. This would be of interest in creating OU flyback circuits.
AFAIK no one else has created deliberate time delay along a magnetic core so this thread will present some ideas and theories.
Smudge
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Topic: Magnetic Delay Lines (Read 5020 times)
