Calibration device and calibration method for mechanical system of industrial CT (Computed Tomography)

By using a combination of laser positioning lights and calibration targets in the industrial CT system, precise position calibration of the CT rotor and conveying platform is achieved, solving the problems of difficult and poor mechanical calibration of ultra-large aperture industrial CT systems, and improving the reliability of the scanning process and image quality.

CN120702335APending Publication Date: 2025-09-26BEIJING HANGXING MACHINERY MFG CO LTD
View PDF 11 Cites 0 Cited by

Patent Information

Application Number
CN202510897926.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-01
Publication Date
2025-09-26

AI Technical Summary

Technical Problem

Existing ultra-large aperture industrial CT systems suffer from poor accuracy and difficulty in the mechanical calibration process, which leads to workpiece position deviation, image quality degradation and even equipment damage.

Method used

A combination of laser positioning lights and calibration targets is used. By setting up multiple positioning lights and calibration targets, precise position calibration of the CT rotor and conveying platform is achieved, including the corresponding calibration of the beam plane of the laser positioning light and the calibration target, ensuring that the workpiece is within the scanning field of view and does not interfere with the rotor components.

Benefits of technology

It improves the mechanical calibration accuracy and scanning process reliability of ultra-large aperture industrial CT systems, ensures the quality of internal defect detection of large-size and high-density workpieces, and improves the system's performance stability and image quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120702335A_ABST
    Figure CN120702335A_ABST
Patent Text Reader

Abstract

The invention discloses a mechanical system calibration device and calibration method for an industrial CT, belongs to the technical field of industrial CT, and is used for solving the problems of large mechanical calibration difficulty and poor precision of a large-aperture industrial CT. The calibration device comprises a laser positioning lamp, a calibration target and a positioning target, the laser positioning lamp and the calibration target are installed on a CT rotary body frame, the positioning target is fixed to a workpiece conveying platform, the calibration target is used for calibrating the position of the laser positioning lamp, and the laser positioning lamp is used for calibrating the position of the positioning target so as to complete position calibration of the workpiece conveying platform. According to the calibration device and method, mechanical position calibration between subsystems in an oversized industrial CT system can be completed, operation is easy, and calibration precision is high.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Systems and methods for landmark correction in magnetic resonance imaging

    CN103371824A

  • Aligning adjustment and separation apparatus of multimodal imaging system, and aligning method

    CN104905811A

  • Method and system for calibrating position of examination couch relative to CT gantry

    CN112386274A

  • Laser calibration positioning device applied to CT (computed tomograph) in medical industry

    CN113827261A

  • Verification die body bearing device based on vertical scanning CT system and application method of verification die body bearing device

    CN116746957A