Abstract 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.
An information transducer employing a magnetic energy field, comprising a first core member having a smooth contact surface, a second similar core portion having a corresponding smooth contact surface, said first and second core members mounted with said surfaces abutting and defining a distinct transducing junction and each of said core portions being formed of material carrying the magnetic energy field and having distinctly different magnetic field carrying characteristic, means firmly supporting said members in abutting relation to essentially eliminate any gap between said separate members at said junction, magnetic field source means coupled to said core portions to directly establish said magnetic energy fields in said core portions and establishing a high intensity magnetic field at the junction.
Claim 2
Dependent Claim
119 words
An information transducer employing a magnetic energy field, comprising a first core member having a smooth contact surface, a second similar core portion having a corresponding smooth contact surface, said first and second core members mounted with said surfaces abutting and defining a distinct transducing junction and each of said core portions being formed of material carrying the magnetic energy field and having distinctly different magnetic field carrying characteristic, means firmly supporting said members in abutting relation to essentially eliminate any gap between said separate members at said junction, magnetic field source means coupled to said core portions to directly establish said magnetic energy fields in said core portions and establishing a high intensity magnetic field at the junction.
Claim 3
Dependent Claim
13 words
The information transducer of claim 1 wherein said end surfaces are planar surfaces.
Claim 4
Dependent Claim
25 words
The information transducer of claim 1 wherein said members are similar ferrite core members of a distinctly different permeability defining an essentially closed magnetic path.