Magnetic current generated by a record head, stored on magnetic tape, and picked up by the playback head. Also the magnetic field that exists between the poles of a magnet.
A 180°change in the flux pattern of a magnetic medium brought about by the reversal of the magnetic poles within the medium.
Flux Transition Density
Number of flux transitions per track length unit.
Case, D., 1985, Motion Picture Film Processing, Media Manuals, Focal Press, London, Boston