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Rotary transformer with relatively small output common ground error

A rotary transformer, common ground technology, applied in the direction of transformer, transformer/inductor coil/winding/connection, inductor, etc., can solve the problem of undiscovered rotary transformer, etc., to reduce the area of ​​distributed capacitance, reduce the number of poles, reduce the number of poles, etc. area reduction effect

Active Publication Date: 2009-09-02
TIANJIN NAVIGATION INSTR RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, no resolver that can solve the above problems has been found

Method used

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  • Rotary transformer with relatively small output common ground error
  • Rotary transformer with relatively small output common ground error
  • Rotary transformer with relatively small output common ground error

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0023] A rotary transformer with a small output common ground error is composed of a stator 2 and a rotor 1, and its installation structure is sub-package or integral. The stator is composed of a stator casing 11, a stator core 16 and a stator winding 23 wound thereon, and the rotor is composed of a rotor sleeve 12, a rotor core 15 and a rotor winding 22 wound thereon. Both the stator winding and the rotor winding are electrically orthogonal A and B two-phase windings. The two-phase windings are composed of reversely connected coil groups under the two poles. The number of winding turns is proportional to the sine of the electrical angle of the number of slots. .

[0024] The innovation of this resolver i...

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Abstract

The invention relates to a rotary transformer with relatively small output common ground error, which is composed of a stator and a rotor and exists in two structural forms, namely, segmental type andintegral type. The stator comprises a stator case, a stator iron core and a stator winding wound thereon, and the rotor comprises a rotor shaft sleeve, a rotor iron core and a rotor winding wound the reon, wherein two phase windings of the rotor winding and / or stator winding are all formed by the alternate arrangement of a circular coil assembly and a concentric coil assembly; and the circular coil assembly and the concentric coil assembly under the two poles of the two phase windings are both symmetrically arranged. The capacitance of the rotary transformer is greatly reduced due to the alternative distribution of the output windings, and the output common ground quadrature error and null voltage are also greatly reduced, thus lowering the system angle measurement error, improving the system precision, and simultaneously widening the excitation frequency application range of the rotary transformer, satisfying the application requirements of certain special systems on high excitation frequency and small output common ground error of the rotary transformer.

Description

technical field [0001] The invention belongs to the field of rotary transformers, in particular to a rotary transformer with small output common-ground error. Background technique [0002] The role of the resolver in the angle measurement system is to complete the angle-to-mode transformation, transform the mechanical angle into an electrical phase analog signal or an amplitude analog signal, and then measure the input angle through phase or amplitude detection. For example, in the inertial navigation system, the measurement of the hull pitch, roll, and azimuth change angle is completed together with the induction synchronizer. The resolver is an inductive component. According to the principle of magnetic field coupling, when the resolver is compensated by the primary side or the secondary side, the output voltage should be in a sinusoidal relationship strictly according to the angle of the secondary side relative to the primary side, but there are Distributed capacitance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F38/18H01F27/28H02K3/28G01D5/12
Inventor 潘龙飞李璐董磊赵承利
Owner TIANJIN NAVIGATION INSTR RES INST
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