Industrial CT (computed tomography) ray field range indicating device
By introducing an indicator hood and a red light source radiation field range indicator into industrial CT equipment, the problem of time-consuming and laborious adjustment of the distance between the radiation source and the workpiece has been solved, achieving efficient equipment use and extended lifespan.
Patent Information
- Application Number
- CN202422874759.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing industrial CT equipment is time-consuming and laborious to adjust the distance between the X-ray source and the workpiece, the distance between the detector and the detector, and the height between the detector and the X-ray source. Furthermore, the lifespan of the X-ray source and the detector is limited, making it impossible to use them efficiently.
Design a radiation field range indicator device that includes an indicator cover and a red light source. The radiation field range is displayed by red light, which simplifies the adjustment process and ensures that the workpiece is within the radiation field before CT imaging.
It greatly shortens the instrument setup time, improves work efficiency, extends the service life of equipment, and reduces the ineffective use time of X-ray sources and detectors.
Smart Images
Figure CN223650480U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an industrial CT scanner, specifically an industrial CT beam field range indicator device. Background Technology
[0002] Industrial CT inspection equipment employs unique X-ray optical microscopy imaging technology, utilizing X-rays to visualize the workpiece and combining this with computer-aided 3D digital reconstruction technology to provide high-resolution 3D digital images of the complex internal structure of the sample. This allows for sub-micron-scale digital 3D characterization of the sample's microstructure and analysis of the material properties that constitute the sample. Industrial CT inspection equipment is widely used in fields such as petroleum geology, advanced materials, advanced manufacturing, and life sciences.
[0003] Industrial CT inspection equipment mainly consists of an X-ray source, an X-ray imaging detector, a precision sample stage, and a computer control and processing system. During CT inspection, the workpiece is first placed on the sample stage. Then, based on experience, appropriate distances are determined (distance from the X-ray source to the workpiece, distance from the workpiece to the detector, and relative height between the detector and the X-ray source). After turning on the X-ray source, the distances (distance from the X-ray source to the workpiece, distance from the workpiece to the detector, and relative height between the detector and the X-ray source) are finely adjusted to achieve the required X-ray detection resolution. The position is then fixed, and CT imaging inspection begins.
[0004] Industrial CT X-ray sources typically emit X-rays with a cone angle of 30°. Imaging is only possible when the workpiece is within this cone angle. Before activating the X-ray source, it's impossible to know whether the workpiece is within the 30° cone angle or whether it will be imaged on the detector panel. Only after activating the source and continuously adjusting the distances between the source and workpiece, the workpiece and detector, and the detector and source heights can it be determined whether an image will be formed on the detector. This adjustment process is time-consuming and labor-intensive. Furthermore, industrial CT X-ray sources and detectors are quite expensive and have limited lifespans. Minimizing the ineffective use time of the X-ray source and detector is crucial for improving equipment utilization. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings in the above-mentioned background technology and provide an industrial CT radiation field range indicator device. This device has the characteristics of simple structure, convenient use, and extended equipment service life.
[0006] The technical solution of this utility model is:
[0007] An industrial CT radiation field range indicator device is characterized in that: the device includes an indicator cover and a red light source, the red light source is installed in the indicator cover, and the indicator cover is provided with radiation holes and several indicator holes arranged obliquely around the radiation holes;
[0008] The indicator cover is installed on the head of the X-ray machine. The X-ray from the X-ray source is emitted through the X-ray hole, and the light from the red light source is emitted through the indicator hole. The cone angle of the red light is equal to the cone angle of the X-ray.
[0009] The ray hole is located at the center of the indicator cover, and the ray hole is a conical hole that is larger at the front and smaller at the back.
[0010] The angle between the generatrix of the inner wall of the ray hole and the central axis of the indicator cover is 15 degrees.
[0011] The indicator holes are arranged radially and evenly around the ray hole; the angle between the axis of the indicator hole and the central axis of the indicator cover is equal to the angle between the generatrix of the inner wall of the ray hole and the central axis of the indicator cover.
[0012] The rear of the indicator cover is provided with an annular groove for installing a red light source, and the base plate presses and fixes the red light source in the annular groove.
[0013] The red light source includes a ring-shaped light ring with several LED beads.
[0014] The indicator cover is provided with a mounting bracket on its exterior.
[0015] The beneficial effects of this utility model are:
[0016] The industrial CT radiation field range indicator provided by this utility model is not only simple in structure but also safe and reliable. It can be directly installed on existing industrial CT machines and can directly display the radiation field range, which greatly shortens the instrument adjustment time, significantly improves work efficiency, and indirectly extends the service life of the equipment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model.
[0019] Figure 3 This is a schematic diagram of the right-side structure of this utility model.
[0020] Figure 4 This is a cross-sectional structural diagram of the present invention.
[0021] Figure 5 This is a schematic diagram of the main structure of the red light source of this utility model.
[0022] Figure 6 This is a schematic diagram of the X-ray distribution in industrial CT scans.
[0023] Figure 7 This is a schematic diagram of the red light distribution of this utility model.
[0024] Reference numerals in the attached diagram: Indicator cover 1, X-ray hole 1-1, Indicator hole 1-2, Mounting bracket 1-4, Annular groove 1-3, Red light source 2, Lamp ring 2-1, Lamp bead 2-2, Base plate 3, Base platform 11, Detector column 12, X-ray machine column 13, Detector 14, X-ray machine head 15, Turntable 16, Workpiece 17, X-ray source 18, X-ray A, Red ray B. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0026] like Figure 6 As shown, in the industrial CT inspection device, a detector column 12 and an X-ray machine column 13 are installed on the base platform 11. The detector column can move left and right. Figure 6 (Horizontal direction), a detector 14 is located on the right side of the detector column. The detector can move up and down, while the X-ray machine column cannot move. A X-ray machine head 15 is located on the left side of the X-ray machine column. The X-ray machine head can move up and down, and there is a X-ray source 18 inside the X-ray machine head. After starting, the X-ray source emits X-rays. The cone angle of the X-ray is generally 30 degrees. A turntable 16 is set between the detector column and the X-ray machine column, and the workpiece 17 is placed on the turntable. The above are all conventional industrial CT inspection devices.
[0027] like Figure 1 As shown, the industrial CT radiation field range indicator includes an indicator cover 1 and a red light source 2.
[0028] The indicator cover is mounted on the X-ray machine head, and the red light source is installed inside the indicator cover. The indicator cover has X-ray hole 1-1 and indicator hole 1-2. The X-ray hole is located at the center of the indicator cover and penetrates both end faces of the indicator cover. The indicator holes are evenly arranged around the X-ray hole and also penetrate both end faces of the indicator cover. X-ray A from the X-ray source is emitted through the X-ray hole, and red light B from the red light source is emitted through the indicator hole.
[0029] The ray hole is a conical hole that is larger at the front and smaller at the back (e.g., ...). Figure 4 As shown, the large hole of the conical aperture is located on the left and the small hole is located on the right. The angle between the generatrix of the inner wall of the X-ray aperture and the central axis of the indicator cover is 15 degrees (this angle is half of the cone angle of the X-ray machine).
[0030] The indicator holes are arranged radially and evenly around the ray hole. The angle between the axis of the indicator hole and the central axis of the indicator cover is equal to the angle between the generatrix of the inner wall of the ray hole and the central axis of the indicator cover. Red light surrounds the ray. Figure 7 The cone angle β of the red ray is equal to Figure 6 The cone angle α of the middle ray.
[0031] The red light source comprises a ring-shaped light ring 2-1 and several LED beads 2-2 arranged in a ring on the light ring, such as... Figure 5 As shown. The red light source is mounted at the rear of the indicator cover. Figure 4 As shown, the rear of the indicator cover is provided with an annular groove 1-3, the indicator hole is connected to the annular groove, and the red light source is set in the annular groove and pressed and fixed by the base plate 3.
[0032] The number of ray holes corresponds to the number of LED beads, and each LED bead is aligned with an indicator hole to ensure that the red light generated by the LED bead can be emitted through the indicator hole. A condenser or lens may also be installed in front of the LED bead to focus the light.
[0033] The indicator cover is also provided with mounting brackets 1-4 on its exterior. The mounting brackets are located at the top and bottom of the indicator cover, and the indicator cover is fixed to the X-ray machine head by the mounting brackets. The mounting brackets are angle iron.
[0034] The red light source is powered externally, and the LEDs are high-intensity LEDs. The more LEDs there are (the number of LEDs should correspond one-to-one with the number of indicator holes), the denser the circular projection will be, and the better the indication effect will be.
[0035] The method of using this utility model is as follows:
[0036] This invention is installed on the X-ray head of an existing industrial CT scanner, such as... Figure 6 As shown, this utility model is fixed to the X-ray machine head by a mounting bracket, with the X-ray aperture aligned with the X-ray source emission port of the X-ray machine head. After the red light source is activated, it generates light and projects it onto the detector. Because the red light has a longer wavelength, it does not damage the detector, and the cone angle of the light is consistent with the cone angle of the X-ray. Therefore, a ring composed of several red dots is generated on the detector. This ring is slightly larger than the X-ray irradiation field range and can be used to determine whether the workpiece is within the X-ray irradiation field range. Thus, the workpiece can be adjusted to a suitable position without activating the X-ray source. When the detected workpiece is completely within the red ring, it indicates that the workpiece is within the X-ray irradiation field range, and CT imaging can then be performed. This improves work efficiency and extends the service life of the industrial CT scanner detector and the X-ray machine.
[0037] The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.
Claims
1. An industrial CT radiation field range indicating device, characterized in that: The device includes an indicator cover (1) and a red light source (2). The red light source is installed in the indicator cover. The indicator cover has a ray hole (1-1) and several indicator holes (1-2) arranged obliquely around the ray hole. The indicator cover is installed on the head of the X-ray machine. The X-ray from the X-ray source is emitted through the X-ray hole, and the light from the red light source is emitted through the indicator hole. The cone angle of the red light is equal to the cone angle of the X-ray.
2. The industrial CT radiation field range indicating device according to claim 1, characterized in that: The ray hole is located at the center of the indicator cover, and the ray hole is a conical hole that is larger at the front and smaller at the back.
3. The industrial CT radiation field range indicating device according to claim 2, characterized in that: The angle between the generatrix of the inner wall of the ray hole and the central axis of the indicator cover is 15 degrees.
4. The industrial CT radiation field range indicating device according to claim 3, characterized in that: The indicator holes are arranged radially and evenly around the ray hole; the angle between the axis of the indicator hole and the central axis of the indicator cover is equal to the angle between the generatrix of the inner wall of the ray hole and the central axis of the indicator cover.
5. The industrial CT radiation field range indicating device according to claim 4, characterized in that: The rear of the indicator cover is provided with an annular groove (1-3) for installing a red light source, and the base plate (3) presses and fixes the red light source in the annular groove.
6. The industrial CT radiation field range indicating device according to claim 5, characterized in that: The red light source includes a ring-shaped light ring (2-1) with several LED beads (2-2).
7. The industrial CT radiation field range indicating device according to claim 6, characterized in that: The indicator cover is provided with a mounting bracket (1-4) on its exterior.