System and method for realizing order analysis of rotation axis using visual composite position-sensing stripes

An order analysis, rotating shaft technology, applied in the direction of using optical devices, mechanical bearing testing, mechanical component testing, etc., can solve the problem that the three-dimensional vibration signal cannot be obtained directly, and it is difficult to obtain the signal, and achieves low cost and high measurement efficiency. , cost saving effect
CN113758695BActive Publication Date: 2022-07-05FUZHOU UNIV
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
FUZHOU UNIV
Publication Date
2022-07-05

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention proposes a system and method for realizing the order analysis of a rotating shaft by using visual composite position-sensing stripes. A high-speed camera is used as the detector to obtain the image sequence of the composite position-sensing fringes. Using the proposed image processing algorithm, the time-domain three-dimensional vibration and rotational angular displacement signals can be obtained simultaneously. In order to realize the simultaneous measurement of three-dimensional displacement and rotation angle, it is suitable for order analysis. Compared with the traditional system based on three eddy current sensors and one rotation angle sensor, the efficiency and robustness of the system are improved. Therefore, the proposed composite position-aware fringe and vision-based system can be used for rotating shaft condition monitoring and fault detection in practical engineering applications.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical fields of machine vision and vibration measurement, and in particular relates to a system and method for state monitoring and fault diagnosis of rotating machinery by using visual composite position-sensing stripes to realize order analysis of rotating shafts. Background technique

[0002] The acceleration and deceleration of the rotating shaft lead to obvious non-stationary changes in its rotational speed and vibration signal, which brings great difficulties to the fault diagnosis of rotating machinery. Shaft vibration signals contain important information for condition monitoring and fault diagnosis of rotating machinery. However, rotating machinery always operates at variable speed, which brings enormous difficulties to signal analysis using stationary signal analysis methods. In response to this problem, researchers developed order analysis, which has become one of the effective methods for bearing, gearbox, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More