SU1420613A1 - Combination unit of magnetic heads - Google Patents

Abstract

The invention relates to instrumentation. The purpose of the invention is to reduce the influence of magicians, the recording head on the playback head. For this interface plane 5, 14, the adjacent pole and response portions of the recording and reproduction heads are located at an angle of 130-140 & to the lateral edges of the response parts of the cores 7, 16. Making the gap width of the recording head joint 1, 1.5-3 times the width of the joint gap of the playback head 11, as well as placing the vertices of obtuse angles formed by the intersection of the side edges of the response parts of the cores 7 and 16 with the corresponding planes of the junction 5 and 14, on one line, perpendicular to the plane of the working gaps magn. heads, due to the narrow directivity of the scattered zone and the sensitivity zone, the separation of mag. heads 1 and 11 in space and thereby reduce the influence of the recording head 1 on the playback head 11 in the combination block. 2 Il. Sg С / с 12 Г5 42 к с а а: //

Description

The invention relates to tooling, in particular to magnetic heads used in magnetic recording equipment.

The purpose of the invention is to reduce the influence of the recording head on the playback head.

FIG. 1 shows the structure of the proposed magnetic head assembly; in fig. 2 is a schematic diagram of the interaction of magnetic recording and reproducing heads in the area of nearby technological gaps of the joints.

Combined block of magnetic heads {FIG. 1) contains a magnetic recording head 1, made of wear-resistant pole pieces 2, fastened through a non-magnetic gasket of the working gap 3 and connected through technological gaps of the junction 4 and 5 with counterparts of cores 6 and 7 with windings 8 and 9, successively

keeper of recorded information. With the passage of magnetic media relative to the playback head 11, the magnetic flux of the recorded waveform is closed through the working gap 13 and the magnetic conductor of the head formed by the pole part 12 and the counterpart of the core 16. When the magnetic flux crosses the turns of the winding 17, the EMF is induced in the latter. time repeats the law of change in current. winding the recording head, i.e., in the playback head, the process of recovering the recorded information occurs. At the same time, the presence in the combined block of the recording and playback heads simultaneously, which makes it possible to realize the so-called "pass-through recording-playback channel," makes it possible to exercise operational control over the quality of the recorded information. Wear-resistant pole parts 2 and 12 provide

interconnected. The reciprocal parts 2o maintain the unchanged parameters of the combi cores 6 and 7 are also connected to the intervening block for a long time through an additional gap 10. Commentioned operation and made of all-metal from a material like “sendast.

The laminate also contains a magnetic reproduction head 11 made of wear-resistant pole pieces 12 fastened through a non-magnetic 25 laying of the working gap 13 and connected through technological gaps of the junction 14, 15 with a response U-shaped core 16 on which winding 17 is located.

Structurally combined block

the menus of operation are made of all-metal from the material of the “sendast.

The slope of the technological clearances of the junctions allows to obtain a narrowly directed maximum of the scattering zone of the horizontal component of the field strength above the acute angle | 3 of the recording head 1 (curve I in Fig. 2), as well as a narrowly directed maximum of the zone of sensitivity to horizontal magnetic heads. component of the floor above the acute angle (3

that the plane joints 5, 14 nearby

pole and mating parts of the recording heads

and playbacks are angled

a 130-140 ° to the lateral edges of the response

parts of cores 7 and 16. At the same time width. ,, ,

the gap of the butt 5z of the recording head retracts 1.5–3 times (in Fig. 2 this case corresponds to a height of the width of the Si butt gap, the dashed curves are given in the head). The execution of the reproducing head 11 (curve II in FIG. 2), i.e., the slope of the technological gaps makes it possible to reduce the length of the scattering zone and the sensitivity zone but compared to the case where the slope of the gaps

playback (Fig. 2). In addition, the angles A, A of the aforementioned angles, formed by the intersection of the lateral faces of the response parts of the cores 7 and 16 of these heads DO with the corresponding junction planes 5 and 14, are located on one line of the working gaps of the magnetic heads 1 and 11 (the P-P line of symmetry in Fig. 2 is parallel to the planes of working gaps, which are not shown in the drawing).

The combined block of magnetic heads work & t as follows. In the process of recording, a magnetic magnetic flux appears in the magnetic core of the magnetic core formed by the response parts of the cores 6 and 7 and the pole part 2. Due to the large magnetic resistance of the working gap 3, learning of the magnetic flux occurs in its area, which acts on the moving magnetic i carrier, resulting in the latter forming a residual magnetization distributed over its length, which serves

The recording gap of the recording head is wider than the technological gap of the playback head joint, as well as the placement of the vertices of obtuse angles L, A on the same line / -1 perpendicular to the working gap of the magnetic heads. and sensitivity zones, it is easy to spread the latter in space and thereby significantly reduce the effect of recording heads on the playback head in the combo box (Fig. 2).

Claims (1)

Invention Formula A combined block of magnetic heads, comprising a wear-resistant pole part made of pole tips of recording and reproducing heads, connected through technological clearances of the joint with corresponding counterparts with windings, characterized in that, in order to reduce the influence of the recording head the menus of operation are made of all-metal from the material of the “sendast. The slope of the technological clearances of the junctions allows to obtain a narrowly directed maximum of the scattering zone of the horizontal component of the field strength above the acute angle of the recording head 1 (curve I in Fig. 2), as well as a narrowly directed maximum of the sensitivity zone of the horizontal component of the field of the acute angle (3 component of the floor above the acute angle (3 . ,, , recedes (in Fig. 2 to this case, the corresponding reproduction headings 11 (curve II in Fig. 2), i.e., the slope of the technological gaps allows to reduce the length of the scattering zone and the sensitivity zone but compared to the case when the slope of the gaps The recording gap of the recording head is wider than the technological gap of the playback head joint, as well as the placement of the vertices of obtuse angles L, A on the same line / -1 perpendicular to the working gap of the magnetic heads. and sensitivity zones, it is easy to spread the latter in space and thereby significantly reduce the effect of recording heads on the playback head in the combo box (Fig. 2). Invention Formula A combined block of magnetic heads, comprising a wear-resistant pole part made of pole tips of recording and reproducing heads, connected through technological clearances of the joint with corresponding counterparts with windings, characterized in that, in order to reduce the influence of the recording head on the playback head, the plane of the junction of the nearby pole and response parts of the recording and playback heads are placed at an angle of 130-140 ° to the side faces of the response parts of the cores, while the width of the gaps of the recording head joints is 1.5-3 times the width of the joint gaps (rig 2 the playback heads, and the tops of the obtuse angles formed by the intersection of the lateral faces of the response parts of the cores of these heads with the corresponding joint PLANES, are located on the same line perpendicular to the plane of the working gaps of the magnetic heads. 12 sixteen