SU493796A1 - Scanning magnetic head - Google Patents

Description

one

FIELD: engineering; magnet 0; ; , namely, to scanning heads with a vibrating element.

Known scanning magnetic head, Sods1), and l: two-pole linkage: 1.; tips, forming a working gap with moving in the last carrier, recording, recording winding and playback | And, support and node and shifted pole pole.

The known head possesses a large number of spikes that does not allow high scanning speeds to be obtained.

To increase skannrovann speed r1 1edlagaemu10 head administered irikreplen ibiii to CHOjjc offset and ustaiovleniy in nazah poles and magnet kolieobraznp ferrite serdechnnk with placed thereon a winding reproducing and pole iakonechpiki pynol 1eiy one in vnde triangular prism, and BTOpoi a plate associated with a support and set-up with a gap and at an angle to the edge of the prism, and the plate is elastic, and the free end of the cross is connected with the knot that displaces this nlastina.

On -Cirre / Ke shows the proposed scapiruy-1. EI head.

Ustr | | S | -content of the magnetic core, out of the ferromagnetic prism 1, the elastic plate 2, fixed by one end in the support 3 and the constant magnet 4 is displaced. The prism 1 is the end plate 2 and is a pole of the magnetic head packers: and which form a working gap from the Jeremiah and a carrier 5 in it. The device also contains a recording winding 6 placed on the nlastine 2, a playback winding 7 placed on the ferrite ring 8, mounted in the groove of the support 3 of the nano-mounted magnet 4 and the assembly 9 is unmounted at the end of the plate 2 relative to the edge of the prism 1. The displacement unit can be made, in the form of an electromagnet. The device works in the following way.

The magnetic carrier 5 moves between the rigidly mounted Lens 1 and the elastic Silica 2. The electrical recording signal is fed into the winding 6, the magnetic field of which passes through the plate 2, oscillated by the node 9, the carrier layer 5, the ferromagnetic prism 1 and closes through the air gap with support 3. The free end of the plate 2, making an oscillatory motion, moves the maximum magnetic magnetic field, located at the point of intersection of the edge of the prism 1 and the end of the base 2, perpendicular to the movement of the carrier 5 along the edge of the prism 1. This displacement of the maximum intensity of the magnetic field is possible by placing plate 2 at an angle to the edge of the prism 1. The end of plate 2 deviates by a small distance, while the maximum point of the intensity of the magnetic field runs through all of carrier 5. Thus, the task of obtaining a high scanning speed due to the use of the phase velocity of the vibrator is solved.

Reproduction of recorded information is as follows. When moving the magnetic carrier 5 and the oscillating plate 2, the point of maximum sensitivity of the head scans the carrier 5, and the magnetic field of the corresponding point of the carrier is channeled by the plate 2 and the support 3 to the ferrite ring 8. Induced in the winding 7 em. carries information about the recorded signal on the carrier. The magnetic field of magnet 4 is used to select the operating point on the magnetization curve of the ferrite ring.

Before m with t and 3 about b ete e n and

A scanning magnetic head containing a magnetic core with two pole gaps forming a working gap with moving in the last recording medium, recording and reproducing windings, a support and a pole-tip displacement unit, characterized in that, in order to increase the scanning speed, the displacement magnet and an annular ferrite core mounted in the slots of the support and magnet displacement with a reproduction winding placed on it, and the pole ends are made one in de nrizmy trihedral, a second plate associated with a support and with a fixed gap at an angle to the edge of said prism, wherein the plate is elastic, and its freedom end coup wives pere.mescharoschim with the plate assembly.