SU1237903A1 - Shaft turn angle-to-phase modulated signal converter - Google Patents

Abstract

The invention relates to the field of automation and computing and can be used to connect analog information sources with a digital computing device. In order to expand the range of unambiguous angle conversion, the converter contains a stator with two pairs of poles and a windless rotor with two protrusions at an angle of 90 °, on one diametrically opposite stator poles, the first and second field windings are connected opposite to the AC source, on the other diameters opposite first poles of the stator are installed; the first and second output windings are connected to each other in series and opposite; a third is installed on the same poles of the stator. a fourth coil connected in series with each other, according to. When the rotor is rotated clockwise, the magnetic circuits of the stator windings are successively closed at the positions corresponding to the angles O, 90, 180, 270 °. In this case, the phase of the output signals of the converter will either coincide with the phase of the source signals (signal 1), or it will be opposite (signal 0). The output signals of the transducer at the above-mentioned angular positions of the shaft can be represented as binary signals 00, 01, 10, 11. Further processing of the output signals of the transducer can be performed using detectors or phase-sensitive comparators. 2 Il. (L N9 CO with

Description

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"1237903

The invention relates to automation and computing and can be used to connect analog sources of information with a digital computing device.

The purpose of the invention is to reduce the diazone of the unambiguous angle conversion,

FIG. 1 schematically shows a converter; in fig. 2 - diagram of its output signals.

The converter contains a stator 1 with two pairs of poles and a non-winding rotor 2 with two protrusions under the glom 90, on one diametrically 15 and opposite poles of the stator 1, the first 3 and the second 4 excitation windings connected opposite the AC source 5 are mounted on other diametrically opposite the poles of the stator 1 are mounted the first 6 and the second 7 output windings connected to each other in series-opposite, on the same poles of the stator 1 are installed the first 8 and the second 9 output windings connected to each other in series o-according

Serially connected output windings 6 and 7 form the output of the lower bit of the converter, the signals of which are shown in FIG. 2a, and the serially connected output windings 8 and 9 form the output of the higher bit of the converter, the signals of which are represented in FIG. 26

The device works as follows.

When the rotor 2 is rotated clockwise in the positions corresponding to the rotation angles O, 90, 180, 270, the magnetic circuits of the windings 6 (8) -3, 7 (9) -3, 7 (9) -4, 6 (8) -4.

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In this case, the phase of the output signals of the converter will either coincide with the phase of the source 5 signals (conventionally, we denote such a signal as 1), or it will be opposite to the phase of the source 5 signals (signal 0). Then, the output signals of the transducer at the four angular positions of the shaft can be represented as binary numbers 00; 01; ten; eleven.

Thus, the output phase-modulated transducer signals unambiguously determine the angular position of its rotor in the range of 360 ° every 90 °. Further processing of the output signals of the converter can be performed using detectors or phase-sensitive comparators.

Claims (1)

Invention Formula The converter of the angle of rotation of the shaft into phase-modulated signals, containing a stator with two pairs of poles and a windless rotor with two protrusions at an angle of 90, on one diametrically opposite stator poles are installed respectively the first and second field windings connected to the AC source opposite each other, on the other diametrically opposite poles of the stator are installed the first and second output windings connected to each other in series with a counter, characterized in that, in order to extend the range on an unambiguous angle conversion, the third and fourth output windings are inserted into it, which are mounted on other diametrically opposite poles of the stator and are connected to each other in a series-consistent manner. and 1 Aaroftieti with ipg / g ff Nfeoffff  Cf .JfJH / gd -so} Jeaarfirfatfa- fTta flff / rrifpa (iffod Btfxsy.vott ““ Lt / g e / m. pofffo / Ush /, W. Ai .., 3i3 j Ugd / 7 nofoa / fra offfiTuaei Ouz.) ABOUT   about Editor N.Kishtulinets Order 3277/41 Circulation 670 Subscription BNIIPI USSR State Committee for inventions and discoveries 113U35, Moscow, Zh-35, Raushsk nab., 4/5 Production printing company, Uzhgorod, Projecto st., 4 Compiled by A.Smirnov Tehred L.Oleinik Proofreader L. Patay