SU1634992A1 - Angular displacements transducer - Google Patents

Abstract

The invention relates to a measurement technique and can be used to measure the angular displacements of rotating control objects. The aim of the invention is to increase the sensitivity as well as expand the functionality of the angular displacement sensor, which contains a fixed magnetic conductor 2 with three pole tips 6-8. Additional protrusions 9, 0 are provided to the extreme pole tips to increase the air gap. The middle pole 7 contains primary winding 11, and the extreme pole tips 6 and 8 have connected secondary windings 12 and 13. In the air gap of the magnetic conductor 2 placed annular bark 14 with two pairs of pole pieces 16-19. A pair of pole pieces 16, 17 and 18, 19, are formed by Archimedes spiral segments, and their ends are formed by planes parallel to loskosti symmetry of the armature 14 which is disposed at an angle to the plane of symmetry of the magnetic circuit 2. This enhances the magnetic flux gradient in the air gaps of the armature and the poles Mechlem megnitoprovoda fixed, which increases the sensitivity of the sensor 2 of n ^ ly-5-yl. with s

Description

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FIG. 2

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Claims (3)

Claim 1. The angular displacement sensor, comprising a housing, a three-rod fixed magnetic circuit with three pole tips, end faces of which face the air gap between them, primary and connected opposite-series secondary windings mounted on the pole tips, mounted in the magnetic circuit gap, a ferromagnetic disk an anchor, the plane of symmetry of which is located at an acute angle to the plane of symmetry of the fixed magnetic circuit, on opposite surfaces of the anchor in Two pairs of mutually opposite pole tips are made, each of which has the form of a closed loop formed by segments of identical, corresponding to each other, Archimedes spirals of the corresponding size, each pair of pole tips of the armature covering the corresponding extreme pole tip of the fixed magnetic circuit on opposite sides, distinguishing and with the fact that, in order to increase sensitivity, it is equipped with two additional protrusions attached to the extreme pole tilt to the fixed magnetic circuit and overlapping the corresponding ends of the pole ends of the armature, which are formed by planes parallel to the plane of symmetry of the armature. 2. The sensor according to claim 1, with the exception of that. that it is equipped with a second primary three-core magnetic core that is identical to the first one and has primary windings located on its middle rod and secondary windings on its extreme rods, both fixed magnetic circuits adjoin each other with their bases, additional protrusions of the fixed magnetic circuits are located in a common plane with extreme pole tips, and the plane of the ends of one of the pole tips of the anchor is located in each pair mirror symmetrically relative to the plane of the ends of the second tip Nick in the same pair. 3. The sensor according to paragraphs. 1 and 2, characterized in that, in order to expand the functionality by simultaneously measuring the angle of rotation of another 5 coaxially located control object, it is equipped with a second identically made disk armature, located symmetrically relative to the first on the other side from the middle rods of fixed magnetic cores, and two rods to provide a rigid connection of the middle rods of the magnetic cores with the body. Aa Fig 2 Fig.Z Fig. 4 31 1 Figure 5