| 摘要 |
An energy transducer includes a pair of abutting core members with highly finished surfaces at the junction between the members. The members are formed of a similar material having differing field intensity support capacity. For a magnetic energy transducer, the two members would have substantially different permeabilities. The two core members would have a similar flux density resulting in distinctly different field intensities in each of the members in order to establish and maintain the corresponding flux density. The difference in field intensity tends to establish a step function change at the junction. As the field cannot change abruptly, a high field concentration appears at the junction immediately adjacent the outer surface of the members which can be recorded on a passing magnetic tape.
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