Double redundancy dual-channel non-contact rotary transformer

Abstract

A two-degree two-channel non-touch rotary transformer includes two ring transformers and rotary transformers, the parameter of the two ring transformers are the same, the two rotary transformers are single amtipodal coarse machine rotary transformer and multi-amtipodal finishing machine rotary transformer, two suit of winding schemes with the same parameter are collocated in the coarse machine rotary transformer and finishing machine rotary transformer. The invention combines the single amtipodal rotary transformer and multi-amtipodal rotary transformer to realize high precision; it adopts ring transformer to substitute brush and slip-rings, so the non-contact can be realized, the structure style, magnetic path style, circuitry style of two-degree are adopted to realize two-degree, the reliability and service life of motor can be increased greatly, the fault ratio of system can be decreased greatly, the test precision of system can be increased, and the working life of system can be extended.

Description

Technical field [0001] The invention relates to a non-contact resolver, in particular to a double redundancy dual channel non-contact resolver. Background technique [0002] Resolver is a type of angular position sensing motor that works according to the principle of electromagnetic induction. When a certain AC voltage is applied to the input winding, during the rotation of the motor, the relative position of the input winding and output winding changes the turns between them. As the flux of the link changes, an output voltage that is a certain function of the rotor angle will be generated on the output winding. The most widely used is the sine-cosine resolver whose output voltage is sine-cosine function relationship with rotor angle. [0003] The early resolvers were a pair of pole products, and the product accuracy was tens of arc minutes, which could not meet the product accuracy requirements of the high-precision synchronous servo system from a few arc minutes to a few arc se...

AI Technical Summary

Problems solved by technology

Due to the high excitation frequency and large volume of this type of motor, its magnetic field analysis, design theory, structural design, key process technology, and processing and manufacturing technology are still immature, especially for high-frequency rotary transformers between coarse and fine machines. There are still many unknown areas to be explored in terms of electromagnetic interference and impedance matching between non-contact toroidal transformers, high-frequency, large-volume air-gap magnetic field analysis, and environmental adaptability requirements.

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