Measuring bubble-bubble interaction in gap tolerant circuits

The paper is concerned with a method for measuring H
b-b
, the field of bubble-bubble interaction in the entire operation margins of bubble devices. Measurements of H
b-b
are given for asymmetrical chevron, tapir, and half-disk patterns with various code sequences and interelement gaps. In the main part of the operation margin of H
b
the dependence H
b-b
= f(H
b
) is shown to be linear for practically all code sequences. The method helps reveal certain features of bubble-bubble interaction in the I-1 pattern.