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Method of detecting angular velocity

A technology for detecting angles and speeds, which is applied to devices using electric/magnetic methods, the size/direction of magnetic fields, and magnetic field measurements using magneto-optical equipment, which can solve the problems of low detection sensitivity and achieve high sensitivity and measurement large scale effect

Inactive Publication Date: 2020-08-14
金华伏安光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Angular velocity measurement is closely related to guidance and navigation. The traditional methods of measuring angular velocity are mostly based on piezoelectric or micromechanics, and the detection sensitivity is low.

Method used

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Effect test

Embodiment 1

[0022] The invention provides a method for detecting angular velocity, the method comprising the following steps:

[0023] first step, such as figure 1 As shown, an elastic layer 3 is provided on the outside of the component under test 2 rotating around the rotation axis 1 . The elastic layer 3 can be one layer, or multiple layers of different materials. For example, an elastic layer 3 with small elastic absorption is provided near the component; an elastic layer 3 with a large elastic coefficient is provided on the outer layer to generate more deformation during rotation and ensure the stability of the structure.

[0024] The second step is to arrange diamond particles 4 on the elastic layer 3, and the diamond particles 4 all contain nitrogen-vacancy color centers. The diamond particles 4 can be arranged in the middle of the elastic layer 3 or outside the elastic layer 3 . figure 1 This is the case where the diamond particles 4 are provided outside the elastic layer 3 . W...

Embodiment 2

[0032] On the basis of Example 1, such as figure 2 As shown, in the second step, four diamond particles 4 are arranged in symmetrical positions, which not only solves the problem of eccentricity during rotation, but also improves the detection accuracy and prevents errors caused by uneven deformation of the elastic layer 3 on measurement.

Embodiment 3

[0034] Based on the same inventive concept, a plurality of magnets 5 can be arranged outside the elastic layer 3 , and diamond particles 4 containing nitrogen-vacancy color centers are fixedly arranged near the component 2 . When rotating, the elastic layer 3 is deformed, and the position of the magnet 5 is moved, thereby changing the magnetic field near the diamond particles 4, and the angular velocity is determined according to the change of the magnetic field. Such a solution is more suitable when the angular velocity is relatively small, because when the angular velocity is large, the centrifugal force on the magnet 5 is too large and the structural stability is poor.

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Abstract

The invention provides a method for detecting angular velocity. An elastic layer is arranged on a rotating component to be detected, diamond particles are arranged on the elastic layer, and the diamond particles contain nitrogen-vacancy color centers. During rotation, the positions of the diamond particles in the magnetic field are changed under the action of centrifugal force, and the angular velocity of the component is determined according to the change of the magnetic field at the diamond particles. According to the method, the diamond nitrogen-vacancy color center method is used for measuring magnetism, and the sensitivity is high, so that the sensitivity of the method for measuring the angular velocity is high; and the magnet can be away from the to-be-detected component, so that thestructure is simple. In addition, elastic materials with different elastic absorption can be replaced, so that the measuring range is large.

Description

technical field [0001] The invention relates to the field of angular velocity detection, in particular to a method for detecting angular velocity. Background technique [0002] Angular velocity describes how fast an object moves around the center of a circle. Angular velocity measurement is closely related to guidance and navigation. Traditional methods for measuring angular velocity are mostly based on piezoelectric or micromechanical methods, and the detection sensitivity is low. Contents of the invention [0003] In order to solve the above problems, the invention provides a method for detecting angular velocity, the method may further comprise the steps: [0004] The first step is to set an elastic layer on the outside of the component to be tested rotating around the axis of rotation; [0005] The second step is to set diamond particles on the elastic layer, and the diamond particles all contain nitrogen-vacancy color centers; [0006] The third step is to set up m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/44G01R33/032
CPCG01P3/44G01R33/032
Inventor 不公告发明人
Owner 金华伏安光电科技有限公司