Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Linear trajectory scanning CT detection method and device

A trajectory scanning and detection device technology, applied in the field of CT scanning, can solve the problems of not being able to see the internal composite mandrel clearly, failing to meet the detection requirements, workpiece radiation source-detector data collection, etc., to achieve functional practicability and strong promotion , good economic performance, easy to carry and install

Inactive Publication Date: 2020-09-25
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the non-destructive testing and failure analysis of overhead carbon fiber composite core cables in service, the traditional industrial CT scanning method cannot meet the detection requirements due to the inability to rotate the workpiece itself or the ray source-detector cannot collect data from all angles around the workpiece
In addition, due to the self-winding structure of the cable, the defects of the internal composite mandrel cannot be clearly seen by conventional digital X-ray photography, so it is necessary to study a new cable CT scanning imaging method

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Linear trajectory scanning CT detection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment provides a linear trajectory scanning CT detection device, such as figure 1 As shown, it includes: a fixed frame, a first linear motion mechanism 9 , a second linear motion mechanism 10 , a radiation source support 4 , a detector support 5 , a radiation source 6 and a detector 7 .

[0023] The radiation source 6 is mounted on the first linear motion mechanism 9 through the radiation source bracket 4, the detector 7 is mounted on the second linear motion mechanism 10 through the detector bracket 5, and the first linear motion mechanism 9 drives the radiation source 6 to make a straight line motion, the second linear motion mechanism 10 drives the detector 7 to perform linear motion, and the ray source 6 and the detector 7 are controlled by the first linear motion mechanism 9 and the second linear motion mechanism 10 to perform relative parallel linear motion at the same time. The measuring object 8 performs multi-point linear scanning, and collects projec...

Embodiment 2

[0041] This embodiment provides a linear trajectory scanning CT detection method, including:

[0042] First, center the ray source and detector, and control the ray source and detector to move in opposite directions to their respective half-travel positions to reach the zero position of the system scan;

[0043] Then control the ray source and the detector to make parallel relative linear motion at the same time, scan the measured object in an equiangular or equidistant manner, and collect projection data of multiple sampling points;

[0044] The image reconstruction algorithm is used to reconstruct the collected projection data to obtain the tomographic image of the measured object and realize defect detection.

[0045] In this embodiment, before performing CT scanning, preparatory work needs to be carried out first:

[0046] 1. Carry out system initialization, move the ray source and detector to the midpoint of the guide rail stroke, and realize the centering of the two.

...

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

PUM

No PUM Login to View More

Abstract

The invention relates to a linear trajectory scanning CT detection method and device. The device comprises a ray source and detector. The ray source is used for generating a conical X-ray beam penetrating through a measured object. The detector is used for receiving and detecting an X-ray beam penetrating through the detected object. The device further comprises a first linear motion mechanism anda second linear motion mechanism. Each of the first linear motion mechanism and the second linear motion mechanism comprises a guide rail and a motor. The two guide rails are arranged in parallel. The ray source and the detector are respectively arranged on the two parallel guide rails, and the ray source and the detector are controlled by the motor to perform relative parallel linear motion along the two parallel guide rails by taking a measured object as a center so as to perform multi-point linear scanning on the measured object.

Description

technical field [0001] The present application belongs to the technical field of CT scanning, and in particular relates to a linear trajectory scanning CT detection device and method. Background technique [0002] As an important part of power transmission, high-voltage transmission wires are generally made of steel-cored aluminum stranded wires, aluminum alloy wires, carbon fiber composite core stranded wires, etc., and play a vital role in the entire power grid. Since most of the high-voltage transmission wires are installed in relatively remote and uninhabited areas, the environment and climate are harsh, the operating conditions are poor, and accidents such as wire breakage and damage occur from time to time. It is difficult for the transmission conductors in service to be monitored at any time and regularly inspected in the same way as the equipment in the substation. Therefore, the pre-installation inspection of the transmission conductors and the cause analysis after ...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N23/046
CPCG01N23/046
Inventor 张博刘丰林沈宽李清杨晓辉叶中飞陶亚光任鹏亮宋高丽伍川谢凯魏建林刘光辉陈钊王超
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com