Double-stator double-channel axial magnetic circuit reluctance type rotary transformer

Abstract

The invention provides a double-stator double-channel axial magnetic circuit reluctance type rotary transformer. The double-channel axial magnetic circuit reluctance type rotary transformer provided by the invention is designed to the sub-magnetic circuit type which is radially arranged, a stator part of a finishing machine is positioned on an outer circle, the stator part of a roughing machine is positioned on an inner circle, and the roughing machine and the finishing machine share an integrated rotor constituted by sheathing an inner ring and an outer ring. The outer ring of the rotor is of the shape of sinuidal corrugation along the circumferential direction, and the number of wave crests is P. The inner ring of the rotor is of the shape of sinuidal corrugation along the circumferential direction, and the number of the wave crest is 1. The outer-circle stator and the corresponding outer-ring rotor form a finishing machine part with P pairs of poles of the axial magnetic circuit rotary transformer, and the inner-circle stator and the corresponding inner-ring rotor form a roughing machine part with one pair of the poles. The rotary transformer provided by the invention can be used for measurement sensing of the speed and position of a servo system. The rotary transformer provided by the invention has the characteristics of simple and compact structure and very strong anti-seismic performance. Compared with the reluctance type rotary transformer with the same precision, the volume of the rotary transformer provided by the invention is minimal. The rotary transformer provided by the invention is suitable for the fields of electric vehicles, aviation and aerospace.

Description

technical field [0001] The invention relates to a dual-stator dual-channel axial magnetic circuit reluctance rotary transformer, which belongs to the technical field of rotary transformers. Background technique [0002] The reluctance resolver has developed rapidly in recent years because of its simple structure, high reliability, good manufacturability, and low cost. However, the angle measurement error of the existing reluctance resolver is generally at the angle level. The angular measurement error of the brushless resolver angular second level is an order of magnitude larger. [0003] The dual-channel resolver is a resolver composed of a pair of pole resolvers (coarse machine or coarse channel) and a multi-pair pole (fine machine or fine channel) resolver through mechanical combination or magnetic circuit combination. Angle combination can get precise angle position signal, so the precision of the resolver can be greatly improved, but the existing reluctance resolver ge...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that when the existing dual-channel reluctance resolver is designed with variable reluctance, the gas will increase and the input and output impedance will be reduced, and then provide an outer rotor shaft for a space manipulator. Directional magnetic circuit unipolar reluctance resolver

Images