SU497596A1 - Multiplying device - Google Patents

Description

The invention relates to the field of computer technology, namely, to contactless devices, "can be used as a decisive element of information and iB computer systems.

A multiplying device is known which contains a magnetic core in the form of two symmetrically arranged U-shaped cores with pole pieces, between which are located the excitation and measurement windings.

However, such a device does not provide a sufficiently high accuracy of the multiplication operation, since when the flat windings exit from the ash of the gaps between the poles, the excitation flow created by the exciting winding closes to the left between the poles.

Purpose of: Breach-increase the accuracy of the device. This is achieved by introducing movable cores placed in the gaps between the poles into the device, and the excitation and measurement windings are made in the form of sections with parallel windings laid in the grooves of the inner surface of the pole pieces.

The drawing is a diagram of the proposed copying device.

It contains a magnetic core in the form of two identical symmetrically located ferromaglitic U-shaped cores 1 and 2, at the ends of which there are zero-tips (poles) 3-6. Moving cores 7 and 8 are placed in uniform gaps between the poles. The excitation windings 9 and measurements 10 are made in the form of two series and counter-connected sections with parallel turns laid in grooves on the internal surface of the field.

Works m-knife device as follows.

When powered by an alternating current excitation winding, a flux is created, the path of which is shown in the drawing by dashed lines.

The magnitude of the flow is determined from the expression

F: ./ Gu, O.G, (1)

where / is the current flowing in the field winding;

The specific number of turns of the excitation winding per unit length of poles is doubled;

G is the magnetic conductivity in the flow path, the value of which does not depend on the coordinates of the cores; - core coordinate 7.

0

When the flow crosses the contour of the measuring winding 10, the LS transforms into the latter, whose magnitude is equal to

E, ---. -, X, z -sq / beats G-X, -X ,, (2) -Where Wyj is the specific number of turns of the measuring winding, per unit length of poles; The Xz-coordinate of the core 8. From the expression (2) of ochev-idio, that the output signal is proportional to the product of the coordinates Xi and Xz.

In the case of winding windings with variable pitch, the multiplication of coordinate functions is provided.

Subject invention

A multiplying device containing a magnetic core, made of two symmetrically arranged U-shaped cores with pole pieces, between which are located the excitation and measurement windings, characterized in that, in order to increase the accuracy of the device in operation, mobile cores placed in the gaps are introduced into it between the poles, and the windings of the excitation and measurement are made in the form of sections with parallel turns, laid in grooves on the inner surface of the pole pieces.