Tool for controlling placement angle of double-wire image quality indicator

Abstract

The utility model discloses a tool for controlling the placing angle of a double-wire image quality indicator, and belongs to the field of digital ray detection. The device comprises a base, wherein the base is formed by connecting a transverse larger rectangle and a middle smaller rectangle; a rectangular groove is formed in the base, a double-wire image quality indicator is embedded in the rectangular groove, the rectangular groove is located in the center of the large rectangle, and the rectangular groove is inclined by 2.5 degrees anticlockwise. The utility model is used for solving the problem in the prior art that the placing angle precision of the twin-wire image quality indicator is poor, and the reliability and the accuracy of the evaluation of an imaging system are improved.

Description

Technical Field

[0001] This utility model relates to the field of digital X-ray inspection, and in particular to a tool for controlling the placement angle of a dual-wire image quality meter. Background Technology

[0002] Dual-wire image quality meters are widely used in industries such as aerospace, automotive manufacturing, petrochemicals, and special equipment and pressure vessels, where extremely high demands are placed on the clarity and defect detection capabilities of imaging systems. Particularly in the field of digital X-ray inspection, dual-wire image quality meters play an irreplaceable role. They can precisely quantify the resolution of an imaging system by measuring the distance between the two wires, thereby determining the smallest details the system can identify. They are also compatible with calibration in high dynamic range scenarios such as industrial CT scanners and digital flat panel detectors.

[0003] Currently, in the field of industrial inspection, the traditional method for controlling the placement angle of a dual-wire image quality indicator (ACI) mainly relies on the operator's personal experience. In practice, workers use tape to bind the ACI to the workpiece surface and use a circular magnet for adhesion, typically maintaining the angle between the ACI and the detector row or column within a range of approximately 2° to 5°. This method is relatively simple to operate, and the required tools are readily available, thus it has been widely used in some applications.

[0004] However, existing technologies have significant limitations. They rely heavily on the operator's personal experience and feel, making it difficult to guarantee the precision of angle control. Real-world inspection scenarios are complex and varied; even minute angular deviations can cause errors in the measurement of the distance between the two wires, leading to misjudgments in imaging resolution and potentially missing crucial defect information, thus reducing the accuracy of the imaging system's assessment.

[0005] As the industry's requirements for detection accuracy continue to rise, developing a tool that can precisely control the placement angle of a dual-wire image quality meter to improve the reliability and accuracy of imaging system evaluation has become an urgent problem to be solved. Utility Model Content

[0006] This invention provides a tool for controlling the placement angle of a dual-wire image quality meter, which can solve the problem of placement angle accuracy of dual-wire image quality meters in the prior art, and improve the reliability and accuracy of imaging system evaluation.

[0007] A tool for controlling the placement angle of a dual-wire image quality meter includes a base, the base being composed of a larger rectangle extending laterally and a smaller rectangle centered in the center;

[0008] A rectangular groove is provided on the base for embedding a dual-wire image quality meter. The rectangular groove is located in the center of the larger rectangle and is tilted counterclockwise by 2.5°.

[0009] Furthermore, the shorter side of the larger rectangle is 30mm long, and the longer side of the larger rectangle is 85mm long; the longer side of the smaller rectangle is 45mm long, and the shorter side of the smaller rectangle is 10mm long.

[0010] Furthermore, the base is provided with multiple circular holes, and magnets are placed inside the circular holes.

[0011] Furthermore, there are two circular holes, which are centrally located on the base, and the centers of the two circular holes are located on the connecting edge of the larger rectangle and the smaller rectangle.

[0012] Furthermore, the radius of both circular holes is 4mm, and the distance between the centers of the two circular holes is 25mm.

[0013] Furthermore, the base is made of a magnetic material.

[0014] Furthermore, the longer side of the rectangular groove is 76mm, and the shorter side of the rectangular groove is 16mm.

[0015] Furthermore, the depth of the rectangular groove is 1.1 times the thickness of the image quality meter.

[0016] Furthermore, the height of the base is 5mm.

[0017] Furthermore, the bottom and sides of the rectangular groove have anti-slip textures.

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a tool for controlling the placement angle of a dual-wire image quality meter. In terms of angle control, the base is provided with a rectangular groove that tilts counterclockwise by 2.5°. After the dual-wire image quality meter is embedded, it can form a precise angle with the detector row or column, effectively avoiding angle deviation caused by manual operation and significantly improving detection accuracy. At the same time, the rectangular groove is reasonably sized, with a depth of 1.1 times the thickness of the image quality meter, leaving sufficient installation margin. The anti-slip texture on the bottom and sides of the groove prevents the image quality meter from sliding and ensures stable position during the detection process.

[0020] This tool is easy to operate. Simply embed the dual-wire image quality meter into the groove, adjust and fix it, and you can start the inspection. It is suitable for ferromagnetic workpiece inspection scenarios, has strong versatility, and meets the needs of many industries with stringent imaging requirements. Attached Figure Description

[0021] Figure 1 This is a top view of a tool for controlling the placement angle of a dual-wire image quality meter, as provided in Example 1.

[0022] Figure 2This is a top view of a tool for controlling the placement angle of a dual-wire image quality meter, provided in Example 2.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base; 2. Circular hole; 3. Rectangular groove; 11. Larger rectangle; 12. Smaller rectangle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figure 1 As shown in the figure, the present invention provides a tool for controlling the placement angle of a dual-wire image quality meter, including a base 1. The base 1 is composed of a larger horizontal rectangle 11 and a smaller rectangle 12 centered on it. The base 1 is also provided with a plurality of circular holes 2 for placing magnets and adsorbing the fixture onto the ferromagnetic material workpiece. The base 1 is also provided with a rectangular groove 3 for embedding the dual-wire image quality meter.

[0028] like Figure 1 As shown, specifically, the base 1 has a height of 5mm. This height ensures that the fixture will not wobble due to excessive height during the inspection process, nor will it be too low to affect the installation and use of other components. The shorter side of the larger rectangle 11 has a length of 30mm, and the longer side has a length of 85mm. This size design not only provides sufficient support area for the base, allowing it to be stably placed on the surface of the ferromagnetic workpiece, but also adapts to common inspection workpiece and equipment layouts. The longer side of the smaller rectangle 12 has a length of 45mm, and the shorter side has a length of 10mm. On the one hand, this effectively reduces the overall weight of the fixture, making it easier for operators to handle and install. On the other hand, the smaller rectangle 12 provides reasonable space for the layout of the circular hole 2, optimizing the magnet's adsorption effect.

[0029] like Figure 1As shown, specifically, in this embodiment, there are two circular holes 2, each with a radius of 4mm. This size is suitable for common magnet specifications, ensuring that the magnet can be tightly embedded and preventing it from wobbling within the hole. The two circular holes 2 are centrally located on the base 1, with their centers situated on the connecting edge between the larger rectangle 11 and the smaller rectangle 12. The centers of the two circular holes 2 are 25mm apart. This arrangement ensures that the magnetic attraction force generated by the magnet is evenly distributed when the fixture adsorbs the ferromagnetic material workpiece, allowing the fixture to adhere firmly to the workpiece surface. By placing magnets in the circular holes 2, the fixture is firmly adsorbed onto the surface of the ferromagnetic material workpiece using the magnetic attraction force. This method ensures that the fixture can effectively resist the influence of external forces and vibrations during the testing process, avoiding displacement and thus guaranteeing the accuracy of the test results.

[0030] like Figure 1 As shown, specifically, the rectangular groove 3 is located in the center of the larger rectangle 11 and is tilted counterclockwise at 2.5°. When the dual-wire image quality indicator is embedded in the rectangular groove 3, it forms a fixed angle with the detector row or column. This design effectively eliminates the errors that may occur when manually placing the dual-wire image quality indicator, significantly improving detection accuracy. The longer side of the rectangular groove 3 is 76mm, and the shorter side is 16mm, which is highly matched with the external dimensions of the dual-wire image quality indicator, ensuring that the image quality indicator can be tightly embedded in the groove. The depth of the rectangular groove 3 is 1.1 times the thickness of the image quality indicator. This design provides sufficient installation margin to avoid unstable installation of the image quality indicator due to the groove being too shallow. At the same time, the bottom and sides of the rectangular groove 3 are provided with anti-slip textures to further prevent the dual-wire image quality indicator from sliding in the fixture, ensuring that it maintains a stable position during the detection process.

[0031] Example 2

[0032] like Figure 2 As shown, the main difference between Example 2 and Example 1 is that the base 1 is made of magnetic material, directly utilizing the magnetism of the base 1 itself to attract ferromagnetic workpieces, replacing the method of opening a circular hole 2 and placing a magnet inside it in Example 1. This improvement eliminates the magnet installation step, not only simplifying the overall structure of the fixture and reducing manufacturing costs, but also, because the magnetism of the base 1 itself can provide uniform attraction force, avoiding the fixture warping problem caused by uneven local magnetic force, further improving the stability of the fixture during the testing process.

[0033] The working principle of this utility model is as follows.

[0034] Dual-wire image quality meter installation: Embed the dual-wire image quality meter into the rectangular groove 3. At this time, the dual-wire image quality meter will be deflected by 2.5° relative to the base 1, forming an angle that meets the detection requirements and accurately avoiding human angle deviation.

[0035] Tooling positioning: Place the tooling on the ferromagnetic material workpiece and adjust the tooling position so that the long side of the tooling is parallel to the row or column of the detector, ensuring that the data collected during the detection process is consistent and comparable, and guaranteeing the reliability and usability of the data.

[0036] Fixture fixing: In Example 1, the fixture is attracted to the workpiece by the magnet inside the circular hole 2; in Example 2, the fixture is stably attracted by the magnetism of the base 1 itself.

[0037] Inspection and Evaluation: After completing the above steps, digital radiography (DR / CR) is performed. Following inspection, the minimum resolvable detail of the imaging system is determined by the spacing between the two wires of the dual-wire image quality meter, thereby evaluating the system's sharpness and defect detection capabilities.

[0038] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A tool for controlling the setting angle of a double filament image quality meter, characterized by, Including base (1), the base (1) is formed by connecting the larger rectangle (11) and the smaller rectangle (12) in the middle of transverse; The rectangular recess (3) is located in the center of the larger rectangle (11), and the rectangular recess (3) is inclined counterclockwise by 2.5°.

2. A tool for controlling the setting angle of a double filament pachymeter according to claim 1, characterized in that The length of the shorter side of the larger rectangle (11) is 30mm, and the length of the longer side of the larger rectangle (11) is 85mm; the length of the longer side of the smaller rectangle (12) is 45mm, and the length of the shorter side of the smaller rectangle (12) is 10mm.

3. A tool for controlling the setting angle of a double filament pachymeter according to claim 2, characterized in that A plurality of circular holes (2) are further formed on the base (1), and magnets are arranged in the circular holes (2).

4. A tool for controlling the setting angle of a double filament pachymeter according to claim 3, characterized in that The number of the circular holes (2) is two, the two circular holes (2) are arranged in the center of the base (1), and the centers of the two circular holes (2) are located on the connecting edge of the larger rectangle (11) and the smaller rectangle (12).

5. A tool for controlling the setting angle of a double filament pachymeter according to claim 4, characterized in that The radius of the two circular holes (2) is 4mm, and the center distance between the two circular holes (2) is 25mm.

6. A tool for controlling the setting angle of a double filament pachymeter according to claim 1, wherein The base (1) is made of a magnetic material.

7. A tool for controlling the setting angle of a double filament pachymeter according to claim 2, wherein The length of the longer side of the rectangular recess (3) is 76mm, and the length of the shorter side of the rectangular recess (3) is 16mm.

8. A tool for controlling the setting angle of a double filament pachymeter according to claim 7, characterized in that The depth of the rectangular recess (3) is 1.1 times the thickness of the image quality meter.

9. A tool for controlling the setting angle of a double filament pachymeter according to claim 1, characterized in that, The height of the base (1) is 5mm.

10. A tool for controlling the setting angle of a double filament pachymeter according to claim 1, characterized in that, The bottom and both sides of the rectangular recess (3) have anti-slip texture.

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