Industrial CT solid-gas density resolution test sample

Abstract

The utility model belongs to the technical field of industrial CT (Computed Tomography) detection, and discloses an industrial CT solid-gas density resolution test sample which comprises a density block (1), a base body I (2), a base body II (3), a groove (4) and a base body III (5), the first base body (2) is of a cylindrical structure, eight holes are formed in the first base body (2) at equal intervals along the circumference and used for installing the density blocks (1), and the density blocks (1) and the first base body (2) form a solid density measurement test block. The second base body (3) and the third base body (5) are arranged in the center of the first base body (2), a plurality of grooves (4) with different depths are formed in the top face of the third base body (5), and the second base body (3) is arranged above the third base body (5); and the base body II (3) and the base body III (5) are tightly connected with the combination to form the air gap measurement test block. According to the utility model, simultaneous on-line detection of solid-gas density is realized; the detection efficiency is high, the detection cost is greatly reduced, and the density resolution performance test of the industrial CT system can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of industrial CT testing technology, and in particular relates to an industrial CT solid-gas density resolution test sample. Background Technology

[0002] Industrial CT has emerged as a novel non-destructive testing method in recent years. It boasts advantages such as being unaffected by the material type, shape, or structure of the object being inspected. It can clearly, intuitively, and accurately display the internal structure, material composition, and defects of the object in the form of images. Therefore, industrial CT technology is widely used for the qualitative measurement and analysis of material density. However, CT-tested materials often have high density, a wide range of variations, and complex structures, making accurate quantitative measurement of the workpiece's density difficult. Industrial CT tests solids and gases separately; however, in practical engineering applications, traditional qualitative measurements are insufficient. Currently, the lack of solid-gas density resolution test samples leads to disadvantages such as low CT density detection efficiency, high testing costs, and significant equipment wear and tear. Utility Model Content

[0003] The technical problem to be solved by this utility model is that the lack of solid-gas density resolution test samples leads to low CT density detection efficiency, high detection cost, and large equipment wear and tear.

[0004] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:

[0005] An industrial CT solid-gas density resolution test specimen includes a density block 1, a substrate one 2, a substrate two 3, a groove 4, and a substrate three 5.

[0006] Matrix 1 2 has a cylindrical structure and eight equally spaced holes along its circumference for mounting density block 1. Density block 1 and matrix 1 2 together form a solid density measuring test block. Matrix 2 3 and matrix 3 5 are located at the center of matrix 1 2. The top surface of matrix 3 5 has several grooves 4 of different depths. Matrix 2 3 is located above matrix 3 5. Matrix 2 3 and matrix 3 5 are tightly connected to form an air gap measuring test block.

[0007] The air gap measurement block is placed at the center of the solid density measurement block. The solid density measurement block and the air gap measurement block together form the solid-gas density resolution test sample.

[0008] Preferably, the density block 1 has a size of Φ30×40mm, and there are 8 of them. Each density block 1 is made of a material with a different density.

[0009] Preferably, the substrate 2 has dimensions of Φ200×40mm, and the density of the material used to make the substrate 2 is different from that of the density block 1.

[0010] Preferably, the substrate has dimensions of Φ400×20mm and is made of high-density steel.

[0011] Preferably, the substrate 35 has dimensions of Φ400×20mm and is made of a high-density aluminum material different from that of substrate 23.

[0012] Preferably, the groove 4 is provided on the substrate 5, and there are 4 grooves 5. The depth h of the groove 5 is determined according to the thickness of the slice.

[0013] This invention has the following advantages: First, the test block enables simultaneous online detection of solid and gas density; second, it has high detection efficiency, greatly reduces detection costs, and can realize density resolution performance testing of industrial CT systems. Attached Figure Description

[0014] Figure 1 This is a top view of an industrial CT solid-gas density resolution test specimen according to the present invention.

[0015] Figure 2 This is a cross-sectional view of an industrial CT solid-gas density resolution test specimen according to the present invention.

[0016] In the diagram: 1. Density block; 2. Matrix 1; 3. Matrix 2; 4. Groove; 5. Matrix 3. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.

[0018] like Figures 1-2 As shown, the present invention discloses an industrial CT solid-gas density resolution test specimen, comprising a density block 1, a first substrate 2, a second substrate 3, a groove 4, and a third substrate 5. The first substrate 2 has eight equally spaced holes for accommodating the density block 1. The density block 1 and the first substrate 2 together form a solid density measurement specimen. The second substrate 3, the third substrate 5, and the grooves 4 of varying depths are tightly connected to form an air gap measurement specimen, which is placed at the center of the solid density measurement specimen. The solid density measurement specimen and the air gap measurement specimen together constitute the solid-gas density resolution test specimen.

[0019] Preferably, the density block 1 has a size of Φ30×40, and there are 8 of them. They are evenly distributed on the substrate 2 according to a certain diameter, and each density block 1 is made of a material with a different density.

[0020] Preferably, the substrate 2 has dimensions of Φ200×40, and the density of the material used to make the substrate 2 is different from that of the density block 1. The density of the density block 1 is ρ1, g / cm³. 3The density of matrix 2 is ρ2, g / cm3, and the relative density difference between density block 1 and matrix 2 is selected according to the formula: In the formula, C represents density contrast.

[0021] Preferably, the substrate has dimensions of Φ400×20 and is made of high-density steel.

[0022] Preferably, the substrate 35 has a size of Φ400×20 and is made of a high-density aluminum material different from that of substrate 23.

[0023] Preferably, the groove 4 is provided on the substrate 3 5, and there are 4 grooves 5. The size of the groove 5 is Φ30×h, and the value of h is in the range of h1-h4. The depth h is determined according to the slice thickness and actual situation.

[0024] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and improvements without departing from the principles of the present invention, and these modifications and improvements should also be considered to fall within the protection scope of the present invention.

Claims

1. A sample for industrial CT solid-gas density resolution testing, characterized in that, It includes density block (1), substrate one (2), substrate two (3), groove (4), and substrate three (5); The first substrate (2) has a cylindrical structure and eight equally spaced holes along its circumference for mounting density blocks (1). The density blocks (1) and the first substrate (2) together form a solid density measurement test block. The second substrate (3) and the third substrate (5) are located at the center of the first substrate (2). The top surface of the third substrate (5) is provided with several grooves (4) of different depths. The second substrate (3) is located above the third substrate (5). The second substrate (3) and the third substrate (5) are tightly connected to form an air gap measurement test block. The air gap measurement block is placed at the center of the solid density measurement block. The solid density measurement block and the air gap measurement block together form the solid-gas density resolution test sample.

2. The industrial CT gas-solid density resolution test specimen of claim 1, wherein, The density block (1) has a specification of Φ30×40mm and a quantity of 8. Each density block (1) is made of a material with a different density.

3. The industrial CT solid-gas density resolution test specimen according to claim 1, characterized in that, The substrate (2) has a size of Φ200×40mm. The density of the material used to make the substrate (2) is different from that of the density block (1).

4. The industrial CT solid-gas density resolution test specimen according to claim 3, characterized in that, The substrate (3) has a size specification of Φ400×20mm and is made of high-density steel.

5. The industrial CT solid-gas density resolution test specimen according to claim 4, characterized in that, The substrate three (5) has a size specification of Φ400×20mm and is made of high-density aluminum material, which is different from that of substrate two (3).

6. The industrial CT solid-gas density resolution test specimen according to claim 5, characterized in that, The groove (4) is set on the substrate (5), and there are 4 grooves (4). The depth h of the groove (4) is determined according to the thickness of the slice.

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