| 摘要 |
A multistylus recording head having a plurality of recording styli with each stylus incorporating a multilayer magneto-strictive structure having two adjacent layers with opposing magnetostrictive properties for producing a bending of the stylus in the presence of a longitudinally applied magnetic field. One end of each of the styli is arranged along a recording line and adjacent to a magnetic boundary displacement structure to form a magnetic flux path therewith. The magnetic displacement structure is energized by an input signal to produce a selective displacement of a magnetic null in a composite magnetic field. The magnetic null is positioned with respect to the recording styli whereby a selected stylus is arranged to be in contact with a recording medium while the remaining styli are bent out of contact with the recording medium by effect of the remaining magnetic field.
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