Magnetic bubble micro circuit device and read means.

摘要

The appts. comprises a microcircuit containing at least one loop (14) of circulation paths of magnetic bubbles, means (42) for creating bubbles in a path, means of generating a polarising field (Hb) and means for creating a driving rotating field (Ht). A means of detecting the presence of a bubble in a particular path creates an alternative field (Ha) in the same plane as the driving field generating an oscillation along the length of the bubble path The appts. can be applied to count the rotations of a rotating magnet (26)