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In-situ and non-destructive testing method for cracks in stone cultural relics

A technology of stone cultural relics and detection methods, which is applied in the direction of measuring devices, processing detection response signals, instruments, etc., can solve problems such as difficult detection of cracks in stone cultural relics

Active Publication Date: 2021-07-06
CHINA UNIV OF GEOSCIENCES (BEIJING)
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Problems solved by technology

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method suitable for detecting the length and inclination angle of cracks in stone cultural relics based on the longitudinal wave detection technology and the geometric shape of cultural relics, so as to solve the problem of crack detection in existing stone cultural relics. difficult question

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  • In-situ and non-destructive testing method for cracks in stone cultural relics

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[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0052] It is to be understood that the terms "comprising / comprising", "consisting of" or any other variation thereof are intended to cover a non-exclusive inclusion such that a product, apparatus, process or method comprising a set of elements includes not only those elements , and may include other elements not expressly listed, or elements inherent in the product, apparatus, process or method, as required. Without further limitations, an element defined by the phrase "comprising / comprising...", "consisting of... does not exclude the presence of addit...

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Abstract

The invention provides an in-situ and non-destructive detection method for cracks in stone cultural relics, which includes dividing the stone cultural relics to be detected into grids; measuring the propagation time t and the straight-line distance x of longitudinal waves between the transmitting grid and the receiving grid, and making t ‑x diagram; use a straight line to connect the center point of the transmitting grid transmitting surface with the center points of the two receiving grid receiving surfaces respectively in the geometric diagram, and obtain multiple intersecting areas in the geometric diagram, which are connected by two or more The intersection formed by the intersection of two boundary lines is the crack. The invention provides a method suitable for detecting the length and inclination angle of cracks in stone cultural relics, which is used to solve the problem of difficult detection of cracks in existing stone cultural relics. The length and inclination angle of cracks can be determined by drawing, and the operation is convenient. Wide application, no pollution.

Description

technical field [0001] The invention relates to the detection field of stone cultural relics, in particular to an in-situ and non-destructive detection method for cracks in stone cultural relics, which is used for detecting the length and inclination angle of internal cracks in stone cultural relics. Background technique [0002] my country is an ancient civilization with a history of thousands of years of civilization. In the protection of numerous stone cultural relics in our country, the detection of the crack depth and inclination angle of stone cultural relics is very important for analyzing the physical and mechanical properties of stone cultural relics and judging stone cultural relics. The degree of deterioration and the formulation of protection countermeasures play a fundamental role, which is of great significance to the scientific protection of stone cultural relics. [0003] Due to the non-renewability and preciousness of stone cultural relics, the crack detectio...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/07G01N29/44
CPCG01N29/07G01N29/4418G01N2291/0232G01N2291/0421
Inventor 刘建彬张中俭李黎邵明申
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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