Dual-redundancy non-contact transformer type angular displacement sensor

Abstract

The invention belongs to the technical field of sensors, and particularly relates to a high-reliability and high-precision dual-redundancy non-contact rotary transformer type angular displacement sensor. The sensor comprises an installation shell, a protection shell, a first stator winding, a stator magnetic isolation sleeve, a second stator winding, a rotary drum, a first bearing, a second bearing and an integrated rotor combination. The integrated rotor combination comprises a rotating shaft, a first rotor iron core, a movable magnetic isolation sleeve and a second rotor iron core. Accordingto the invention, the angle measurement precision and the vibration resistance of the sensor are effectively improved through the modes of stator and rotor iron core processing technology optimization, stator winding position adjustability, magnetic isolation sleeve arrangement, integrated rotating shaft arrangement, limiting ring addition and the like, the output consistency error of two channels is reduced, and the cross interference between the channels is avoided. The problems of difficult machining and assembling adjustment process, poor manufacturability, low production efficiency and the like caused by a traditional structure are solved.

Description

Technical field [0001] The invention belongs to the technical field of sensors, and particularly relates to a high-reliability and high-precision double-redundancy non-contact resolver type angular displacement sensor. Background technique [0002] As the mechanical transmission system on the aircraft is increasingly replaced by the electronic control system, the application of the resolver type angular displacement sensor in the aircraft system is also more and more extensive. They provide precise angular position information for the flight control system. [0003] The brushes and slip rings used to transmit signals in the traditional resolver-type angular displacement sensor are the weakest links of its reliability, and the sliding contact between the two limits its life and reliability. In addition, contact resolvers often produce noise, which is not suitable for some noise-sensitive occasions. After adopting reasonable brushless technology in the design, the contact links suc...

AI Technical Summary

Problems solved by technology

At the same time, it solves the problems of difficult processing and assembly adjustment process, poor workmanship, and low production efficiency brought about by the traditional structure.

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