Method and device for determining the depth of a crack in a solid

a solid depth and depth technology, applied in the field of structures for detecting cracks, can solve the problems of inability to automate, no non-destructive quantitative method allowing the depth of a solid to be determined, and high cost of consumable use, so as to increase the robustness of the method and reduce the possible difference in distance between the heated area and the crack.

Inactive Publication Date: 2019-04-18
ESPCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented methods described by both sides of the cracks makes them more reliable than previous designs that only worked at one direction or location.

Problems solved by technology

This patented technology allows for accurate inspections through various methods like X ray radiography scanning, ultrasonic wave tests, x-ray diffraction techniques, magnetic particle imaging, infrared absorption spectroscopy, etc., while minimizing environmental impact during the process.

Method used

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  • Method and device for determining the depth of a crack in a solid
  • Method and device for determining the depth of a crack in a solid
  • Method and device for determining the depth of a crack in a solid

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Embodiment Construction

OF REALIZATION OF THE INVENTION

[0070]The present description is given in a non-limiting way, each characteristic of an embodiment being able to be combined with any other characteristic of any other embodiment in an advantageous way.

[0071]It is now noted that the figures are not to scale.

[0072]“Phase” refers to a delay in the propagation of heat within a solid.

[0073]“Terminal” refers to any device comprising a computing unit. Here, “terminal” means, for example:[0074]a computer;[0075]a digital tablet;[0076]a smartphone; or[0077]a server.

[0078]The general observation forming the basis of the present invention is the following:

[0079]A crack located in a heat diffusion area of a heat source positioned at the surface of a solid acts as a barrier altering the diffusion of the heat. The heat diffusion is also altered as a function of the duration of the heating of the surface of the solid. Therefore, for a continuous thermal excitation traversing a path parallel to the general direction of t

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Abstract

The invention relates to a method (100) for determining the depth of a crack in a solid, which includes:
    • a step (105) of determining at least one speed for scanning a surface of the solid comprising the crack by a positioned heat source;
    • for every speed determined:
  • a step (110) of scanning a portion of the surface of the solid, parallel to the general direction of the crack, by the heat source at said speed; and
  • a step (115), synchronous with the scanning step, of detecting at least one value of a physical quantity representing the local heating of the surface of the scanned solid; and
  • a step (120) of determining the depth of the crack as a function of at least one value detected at least at one predetermined scanning speed.

    • Description

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    Claims

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    Application Information

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    Owner ESPCI
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