SU445101A1 - ICEBROCHE RVDUKTOSIN - Google Patents

Description

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The invention relates to the field of measurement technology.

Inductive reductosins are known, which contain a serrated rotor and a stator, in the grooves of which a single-phase field winding and two signal windings are located. When connecting signal windings by a known method using G) chains, reductosin operates in a phase shifter mode.

The proposed reductosin differs from the known ones in that its stator is made of two packages shifted in angle relative to each other by lA toothed division of the rotor, into which each of the excitation winding and output sine and cosine windings are located. In this case, the sinus and cosine windings of one packet are connected in series with the cosine and sinus windings of the other packet, respectively.

This makes it possible to increase the accuracy of conversion and expand the possibility of applying the proposed reductosin in the phase shifter mode (conversion angle 5 phase) by obtaining two output channels shifted relative to each other by 90 el. hail.

FIG. 1 shows the structural scheme of reductosin; in fig. 2 shows the arrangement and connection of the windings.

Identical packages 2 and 3 of the stator are pressed into the case I,

5 are shifted in angle relative to each other by 1 / h toothed division of the rotor 4, i.e. on 90 el. hail. The packet grooves contain windings 5 and 6 of excitation and signal windings 7.8 and 9.10. The mutual inductances between the excitation winding and the signal windings in each packet vary from the angle of rotation of the rotor according to the law of the sine for windings with perpendicular circular axes and according to the cosine law for windings with coinciding axes. Obtaining two output channels is achieved as follows. When energizing the windings 5 and 6 of the excitation voltage (hereinafter, the indices for voltages and emf correspond to the winding numbers) t / j, - and Sihy) UU Cos in the signal windings induce emf . A - -K 4 Lf) lcSfi 4 L /} Si aL g l (4 / s: // gg) where the amplitude value of the supply voltage; W is the circular frequency of the supply voltage; - the angle of rotation of the rotor relative to the stator, hail; K is the coefficient of transformation between the signal windings and the field windings; Y is the phase shift between the signatures and the endings; P is the number of pairs of poles. At the output of the channel (7-9), consisting of an OF connected in series windings 7 and 9, emf is induced. b -Ki / JJtn / u zfJC s / -f sfi -i f}. jVn / bjj K and o -f) j.l emf channel (8-10) is equal to f-io-f fcp - Ccsl i -CoSp J KU Cf Sf ifLJ- J. Thus, the proposed reductosin has two output channels, phase emf. which are shifted relative to each other by 90 PLN. hail. When connecting channels using RC chains by known methods, which are used to obtain phase shifters based on, for example, sine-cosine rotary transformers with single-phase powering of the latter, the proposed reductosin has one phase-rotation output channel. In this case, the accuracy of reductosin in the phase shifter mode is increased by three to four times in comparison with the known reductosin with a single phase excitation winding. The increase in accuracy is due to the reduction of the influence of the negative sequence fields, which, in particular, arose due to technological errors in the manufacture of reductosines. When using output channels separately, the possibilities of using reductosin in calculating devices are increased. Subject of the invention: Inductive reductosin containing a gear rotor and a stator with windings, characterized in that the stator is made in the form of two packages of magnetic circuit, each of which are located the excitation winding and the sine and cosine winding, with the sine winding of the first package connected to the cosine winding of the second package, and the cosine winding of the first th package is connected with the sinus winding of the second package.

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