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Nondestructive inspection system and singularity detection system

A technology of inspection system and detection system, applied in the field of non-destructive inspection system and critical point detection system, can solve problems such as difficult to apply continuous moving manufacturing method

Active Publication Date: 2018-01-02
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Active thermal imaging is used when the inspection object is stationary, so it is difficult to apply to manufacturing methods that continuously move production parts to achieve efficient takt time

Method used

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  • Nondestructive inspection system and singularity detection system
  • Nondestructive inspection system and singularity detection system
  • Nondestructive inspection system and singularity detection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0026] figure 1 It is a figure which shows the structure of the non-destructive inspection system concerning Embodiment 1 of this invention. The non-destructive inspection system according to Embodiment 1 is one form of a critical point detection system that detects critical points in a measurement object. The non-destructive inspection system according to the first embodiment includes: a conveying device 106 that conveys an inspection object 107 as a measurement object; a driving device 105 that drives the conveying device 106; and an excitation device 104 that is paired by the conveying device 106 Heat is applied to the surface of the conveyed inspection object 107; the control device 102 controls the excitation device 104 and the driving device 105; the imaging device 103 captures the surface image of the inspection object 107 whose surface is heated by the excitation device 104 ; And the programmable display 100, which imports the image taken by the imaging device 103 to ge...

Embodiment approach 2

[0055] Picture 10 It is a figure which shows the structure of the programmable display applied to the non-destructive inspection system concerning Embodiment 2 of this invention. The programmable display 110 of the non-destructive inspection system according to the second embodiment has a feedback processing unit 23 that calculates the amount of movement of the inspection object 107 based on the characteristic points of the acquired surface image and feeds it back to the drive device 105 The point described above is different from the programmable display 100 of the first embodiment. The feedback processing unit 23 is realized by the arithmetic device 31 using the memory 32 as a work space to execute a non-destructive inspection program.

[0056] With regard to the feature points, the edges or corners of the inspection object 107 can be detected and used by image processing. In addition, a mark may be applied to the conveying device 106 and used as a feature point.

[0057] Pic...

Embodiment approach 3

[0061] Picture 12 It is a figure which shows the structure of the programmable display applied to the non-destructive inspection system concerning Embodiment 3 of this invention. The programmable display 120 has a displacement comparison unit 24 that continuously monitors the shooting time based on a moving image regenerated by the display generating unit 20 based on the surface image corrected by the image data processing unit 16 on the position of the inspection object 107 The displacement amount of the defect between the two surface images is calculated and compared with the set threshold; and the history information storage unit 25, which will check the inspection after the displacement comparison unit 24 detects that the displacement of the defect exceeds the threshold The information that the object 107 determines and the information indicating that the defect exceeds the threshold are stored. The displacement comparison unit 24 is realized by the arithmetic device 31 us...

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PUM

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Abstract

A nondestructive inspection system is provided with a drive device (105) for driving a conveyance device (106) for conveying an inspection subject (107), an excitation device (104) for applying heat to the surface of the inspection subject (107) conveyed by the conveyance device (106), a control device (102) for controlling the drive device (105) and excitation device (104), a photography device (103) for photographing a surface image of the inspection subject (107) that has had heat applied to the surface thereof by the excitation device (104), and a programmable display (100) having an imagedata processing unit (16) for dividing each of a plurality of surface images photographed at different times by the photography device (103) into a plurality of partial images and carrying out correction for aligning the positions of the inspection subject (107) in each of the plurality of surface images divided into a plurality of partial images and a display generation unit (20) for generatinga moving image in which the plurality of surface images corrected by the image data processing unit (16) are switched chronologically or a three-dimensional image in which the images are layered chronologically.

Description

Technical field [0001] The present invention relates to a non-destructive inspection system and a critical point detection system for inspecting whether there are defects in the inspection target without destroying the inspection target. Background technique [0002] Currently, active thermography (active thermography) is mainly used for non-destructive inspection of joints of different materials represented by composite materials. With regard to active thermal imaging, the surface of the inspection target is heated by an excitation source such as a flash lamp, and the heat applied to the inspection target is acquired as a dynamic image to obtain the shape and depth of the defect. , Area and volume information. [0003] Active thermal imaging is used when the inspection object is stationary, so it is difficult to apply to a manufacturing method that continuously moves production parts in order to achieve efficient tact time. [0004] Patent Document 1 discloses a test device that u...

Claims

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Application Information

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IPC IPC(8): G01N25/72
CPCG01N25/72G01N33/442
Inventor 折户孝一
Owner MITSUBISHI ELECTRIC CORP