SU424004A1 - ANGULAR TRANSMITTER CONVERTER1 TO ELECTRIC SIGNAL'D ^^ vnn- J! .Ia - Google Patents

Description

one

The invention relates to the field of computing technology, namely to multi-turn converters of angular interleavers, electric signals.

Multiturn contactless transducers are known, consisting of stationary cylindrical magnetic cores and movable rods, the rotation of which leads to winding or non-retardation of flexible windings made of insulated wire. Such converters provide reliable operation with a small number of revolutions of the moving part, reaching 5-6 revolutions.

The aim of the invention is to expand the range of angular movements and increase the accuracy and reliability of multi-turn contactless angle converters.

For this purpose, in the converter, the measuring windings are shifted by an angle of 180 °, and the field winding is evenly distributed around the circumference and partitioned.

FIG. 1 shows the design of the proposed converter; in fig. 2 a, b - characteristics of the converter.

The main parts of the converter are flat insulating cylindrical p 1 housing 1, covered by a movable U-shaped magnetic circuit 2. On the surface of the cylinder there are two identical measuring device 2

These windings are made in the form of crossing triangles 3 and 4 and shifted relative to each other by an angle of 180 °.

In order to obtain a smooth characteristic of the converter when switching, the winding angle can be changed depending on the width of the magnetic circuit.

At the ends of the insulating cylinder, identical sections of the excitation winding 5 are applied in a circle.

The operation of the converter is as follows.

When the movable magnetic core is wound up, the triangular measuring windings are switched after every half-turn.

At the same time, successive switching of winding sections of the winding with each other takes place. These switchings can easily be carried out using electromechanical or electronic switching devices.

So, for example (see Fig. 2a), in the section from O to GS, one section of winding is excited O-1 and one of measuring windings 3 or 4. When the rotation angle is equal, the measuring windings switch, and at the same time with the coil section is excited O-1, section 1-2 is sequentially activated.

Further, when y .. the measuring windings are switched, and section 2-3 is connected to the section of the excitation winding O-1, -2. This switching sequence and the switched section has a month and further with increasing angle of rotation a. This ultimately leads to a smooth measurement of the output characteristics of the transducer (Ie. Fig. 26). At the same time, the sources of the core, which have a place on the first turn (caused by inaccuracies in the manufacture of the measuring windings), are repeated at the next turn. As a result, their share in the total output sigial ppchtozhiya. which leads to an increase in the linearity of the character of the converter. The linearity of the character increases with increasing number of turns of the converter.

The excerimeptal pseudoes carried out showed that the transducer1 provides a wide range of angular displacements (100–200 revolutions and above), while having a high linearity of the characteristic (the degree of nonlinearity reached hundredths of a percent).

Subject invention

Angular-mixing electric converter, an electrical signal containing a cylindrical body with measuring windings and an excitation winding located on it and a U-shaped movable magnetic conductor enclosing the housing, characterized in that, in order to increase the accuracy and reliability of the converter, the measuring windings are shifted by 180 °. and the field winding is evenly distributed around the circumference of the housing and is partitioned.

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FIG. one

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