SU54919A1 - Electromagnetic Pickup - Google Patents

Description

The present invention consists in a special constructive implementation of the Frischinger type electromagnetic pickup.

In FIG. 1 shows a schematic view of the proposed pickup; FIG. 2 - view of his side; FIG. 3 and 4 is a perspective view of pole pieces and a magnet core; FIG. 5 and b are the two extreme positions of the core during the operation of the pickup.

The pickup consists of a permanent magnet 2, provided with pole pieces /, /, the ends of which, for the purpose of concentrating the magnetic flux from the outer sides of the interpolar space, are made doubled, for example, as shown in FIG. 3

The anchor 3 of the magnet 2, freely located inside the coil 4, included in the working circuit, is given the shape of a fork, freely covering the forked ends of the poles /, /. The width of the plug is equal to the gap between the pole tips. Anchor 3

secured with rubber pads so that it can freely oscillate to the right and left (Figs. 1, 5 and 6) without hitting the pole ends. When the core oscillates, approaching one pole of magnet 2, it moves away from the other and, due to the fact that it is made of iron, it reverses.

The above causes a change in the direction of the magnetic flux in the coil 4 (Fig. 5 and b).

The proposed pickup has the positive property that the amplitude of the oscillations of the core is not limited by the distance between the pole tips, which makes it possible to increase the frequency response of the latter.

The subject matter of the invention.

A Frischinger type electromagnetic pickup, characterized in that its koryu is shaped like a fork, freely embracing forked pole ends.

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