SU421031A1 - MAGNETIC RECORD HEAD - Google Patents

Description

one

The invention relates to magnetic recording and can be used to record electrical signals on magnetic media.

Magnetic heads are known, containing three magitic lines with offenses working surface and working gaps, the axes of which are located on one straight line, and the windings placed on each magnetic conductor connected in-phase and in series and connected to current sources of recording and high-frequency magnetization. Moreover, the windings among the magnetowire are connected to a source of additional high-frequency biasing.

The aim of the invention is to improve the structure and the circuit for incorporating the g-logiitis head.

In the proposed head, the winding is connected simultaneously to the sources of current recording and high frequency magnetisation and performed offenses for all three magnetic conductors, and the second winding located on the middle magnetic circuit is connected only to the source of high frequency biasing anti-phase current in the first winding.

A drawing of the proposed head.

The magnetic recording head contains 1-3 magnetic conductors, each of which is SST.

of two C-shaped cores, with the cores of the middle magnetic conductor 2 being identical with respect to the cores 1 and 3. The total length of the working gaps of the magnetic circuits is equal to the width of the track. The field winding 4 is common to all

ipex magpoprosodov and consists of two coils placed symmetrically to the magnetic circuit and connected in series. 06iiOTKa excited1: and connected to the source of the recording current and high-frequency iodine measurement. The winding 5 is located on the tail section of the middle one coupling cable and connecting it only to the high-frequency current source (magnetized) 1 я. The magnetic cores are separated by gaskets 6 and 7 of a non-magnetic material with 0.1-0.2 mm thick tidinoy material. Axes of working clearances magiptno; heads are set on one straight line and form a common working gap a. When filing in the winding 4 write current and

Iodomagnes and all the working head gaps create optimal conditions for recording frequencies. When the antiphase subsurface is 5 currents of high-frequency iodine magnetic flux, the magnetic flux, forming; the field is under the average in the region of the middle: -: agpit 2, weakened in the working winding 5 in the working magnetic circuit, there are provided optimal conditions for recording the top3

These are the frequencies of the spectrum transmitted by USA. ha. As a result, optimal conditions are created in the central part of the working gap for recording the upper frequencies of the spectrum by transmitting: .1 signal, and in the extreme areas of the working gap for recording the lower frequencies of the spectrum, since it is known that the suppression field during recording of short wavelengths should be less Paul Nodmagnichnvain, necessary for recording long wavelengths.

Subject invention

Magnetic recording head, containing three magnetic cores with a common working surface and working gaps, the axes of which are located on the same straight line, windings, a record 1 and a high-frequency bias are connected to the current source, so that on, about: the current, connected simultaneously to the sources of high-frequency and high-frequency tuning, is made open, for all three magnetic circuits, and the second winding, located on the middle magnetic core, is connected only to the source in sokochastotnogo bias current in the opposite phase of the first winding.