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Small-inertia finite angle sensor

A technology with limited angles and sensors, applied in the field of sensors, can solve problems such as inflexible response and poor measurement accuracy, and achieve the effects of avoiding mutual interference, facilitating operation, and reducing moment of inertia

Inactive Publication Date: 2017-11-10
XIAN MICROMOTOR RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many kinds of angle sensors, which are installed on the rotating shaft and can measure the rotation angle of the shaft. However, the existing angle sensors have a large moment of inertia. The problem of poor precision

Method used

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Embodiment Construction

[0021] refer to Figure 1 to Figure 3 , the embodiment of the present invention proposes a small inertia limited angle sensor, comprising: a rotor 1 and a stator 2; a shaft hole 101 is arranged in the middle of the rotor 1, and a first outer arc segment 102 and a second arc segment are symmetrically arranged on the side wall of the rotor 1 Two outer circular arc sections 103, the first outer circular arc section 102 is provided with a rough machine excitation winding 104, the second outer circular arc section 103 is provided with a fine machine excitation winding 105; the stator 2 is symmetrically provided with a first inner circular arc segment 201 and the second inner arc segment 202, the first inner arc segment 201 is located at the periphery of the first outer arc segment 102, the second inner arc segment 202 is located at the periphery of the second outer arc segment 103, the first inner arc segment The circular arc section 201 is provided with a rough machine linear outp...

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Abstract

The invention belongs to the technical field of sensors and discloses a small-inertia finite-angle sensor, which comprises a rotor and a stator. A shaft hole is formed in the middle of the rotor. A first outer arc section and a second outer arc section are symmetrically arranged on the side wall of the rotor. A rough machine excitation winding is arranged on the first outer arc section. A precision machine excitation winding is arranged on the second outer arc section. A first inner arc section and a second inner arc section are symmetrically arranged on the stator. The first inner arc section is located on the periphery of the first outer arc section. The second inner arc section is located on the periphery of the second outer arc section. A rough machine linear output winding is arranged on the first inner arc section, and a precision machine sinusoidal output winding and a precision machine cosine output winding are arranged on the second inner arc section. Two parallel chord sections are arranged between the first outer arc section and the second outer arc section. According to the invention, the small-inertia finite-angle sensor adopts the coarse and fine double-channel combined coding manner, so that the measuring precision is high. The rotational inertia of the rotor is reduced and the reaction is flexible.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to a small inertia limited angle sensor. Background technique [0002] At present, there are many kinds of angle sensors, which are installed on the rotating shaft and can measure the rotation angle of the shaft. However, the existing angle sensors have a large moment of inertia. The problem of poor precision. Contents of the invention [0003] In order to solve the above problems, the present invention provides a small inertia limited angle sensor, which has a small moment of inertia, flexible response and high measurement accuracy. [0004] In order to achieve the above object, the present invention adopts the following technical solutions. [0005] A small inertia limited angle sensor, comprising: a rotor and a stator; a shaft hole is set in the middle of the rotor, and a first outer arc segment and a second outer arc segment are symmetrically arranged on the side wall of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/20G01B7/30
CPCG01B7/30G01D5/2086
Inventor 沈桂霞张亮
Owner XIAN MICROMOTOR RES INST
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