On-line non-destructive testing apparatus and system for the thickness of each layer of a coated particle
Patent Information
- Application Number
- CN202522700467.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-19
AI Technical Summary
[0004]本实用新型提供一种用于包覆颗粒各层厚度的在线无损检测装置及系统，以解决相关技术难以实现核燃料元件生产线大量包覆颗粒在线检测的问题
本实用新型包括第一基座、第二基座、成像组件、样品台和X射线管组件，通过样品台放置包覆颗粒阵列排布装置， X射线管组件发射X射线穿透颗粒阵列排布装置，成像组件采集透过颗粒阵列排布装置的X射线，采集包覆颗粒阵列排布装置的图像；通过控制器控制样品台移动，成像组件采集包覆颗粒阵列排布装置中各包覆颗粒的图像，将图像传输至处理器，处理器识别图像中各包覆颗粒的包覆层轮廓，根据每个包覆层轮廓之间的距离确定包覆层厚度，基于微焦点X射线成像原理，实现了非破坏性检测，颗粒易回收，不产生放射性废物，并且适合生产线在线自动化检测，检测效率与检测精度高，可重复性好。由此，解决了相关技术未考虑检测效率，难以实现核燃料元件生产线大量包覆颗粒在线检测的问题。
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Figure CN224905999U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nuclear engineering technology, and in particular to an online non-destructive testing device and system for the thickness of each layer of coated particles. Background Technology
[0002] As a key reactor type in fourth-generation nuclear energy systems, the high-temperature gas-cooled reactor (HTGR) uses TRISO (Tri-structural Isotropic) coated fuel particles as the core of its fuel elements. These particles are based on a UO2 (uranium dioxide) core with a diameter of approximately 0.5 mm, sequentially coated with a loose pyrolytic carbon layer, an inner dense pyrolytic carbon layer, a SiC (silicon carbide) layer, and an outer dense pyrolytic carbon layer, forming a multi-layered structure. These coating layers play crucial roles in reactor operation, including buffering stress, preventing the release of fission products, and providing mechanical strength, constituting the first line of defense for reactor safety. Therefore, accurate measurement of the thickness of each layer is essential for ensuring the safety and reliability of the fuel elements.
[0003] In related technologies, metallurgical microscopy is used to measure the thickness of each layer of coated particles. Specifically, fuel particles are embedded in resin and polished to near the equatorial plane of the particles before imaging analysis to obtain the thickness information of each coating layer. However, due to the small size and individual differences of TRISO particles, it is difficult to ensure that all particles are accurately polished to the ideal position in actual operation. Therefore, the existing technical solutions are insufficient in terms of detection efficiency and cannot achieve large-scale, online detection for nuclear fuel element production lines. Utility Model Content
[0004] This invention provides an online non-destructive testing device and system for the thickness of each layer of coated particles, in order to solve the problem that related technologies are difficult to implement online testing of a large number of coated particles in nuclear fuel element production lines.
[0005] The first aspect of this utility model provides an online non-destructive testing device for the thickness of each layer of coated particles, comprising: a first base and a second base, wherein the second base is vertically disposed on the first base; an imaging component and a sample stage disposed on the second base, wherein the sample stage holds a coated particle array arrangement device, and the imaging component acquires an image of the coated particle array arrangement device; an X-ray tube assembly disposed between the sample stage and the first base, the X-ray tube assembly emitting X-rays that penetrate the particle array arrangement device, and the imaging component acquiring the X-rays that pass through the particle array arrangement device; and a controller disposed on the first base, wherein the controller is connected to the sample stage and the imaging component, controls the movement of the sample stage and the imaging component, the imaging component is connected to a processor, the processor identifies the coating layer contour of each coated particle in the image of the coated particle array arrangement device, and determines the coating layer thickness based on the distance between each coating layer contour.
[0006] Optionally, the imaging assembly includes an acquisition assembly and an objective lens assembly, the objective lens assembly including a first lens and a second lens.
[0007] Optionally, the controller uses a pre-configured first movement trajectory and a second movement trajectory to control the movement of the sample stage. The pre-configured first movement trajectory is as follows: taking the image range captured by the first lens as a module, starting from the center position of the module, and moving layer by layer from the inside out according to the trajectory, with each coated particle as a unit. During the movement of the sample stage, all coated particles in the module are presented one by one in the field of view of the second lens. The pre-configured second movement trajectory is as follows: starting from the module at the center position of the coated particle array arrangement device, and moving layer by layer from the inside out, with each module as a unit. During the movement of the sample stage, all coated particles in the coated particle array arrangement device are presented one by one in the field of view of the first lens, with each module as a unit.
[0008] Optionally, the imaging component is mounted on the second base via a first motion platform, which allows the imaging component to move vertically along the second base.
[0009] Optionally, the controller controls the three-dimensional movement of the sample stage. The sample stage includes a second motion platform and a third motion platform, wherein the third motion platform is vertically connected to the second motion platform. The third motion platform is set on the second base and is allowed to move vertically along the second base. The third motion platform drives the second motion platform to move vertically along the second base. The second motion platform is allowed to move horizontally perpendicular to the second base. A coated particle array arrangement device is placed on the second motion platform.
[0010] Optionally, the X-ray tube assembly is mounted on a third motion platform, and the controller controls the third motion platform to move vertically along the second base, thereby causing the X-ray tube assembly to move vertically along the second base.
[0011] Optionally, the online non-destructive testing device for the thickness of each layer of coated particles further includes: a loading and unloading unit for placing or removing coated particles from the sample stage, the loading and unloading unit including a robot and inlet / outlet hoppers.
[0012] Optionally, the robotic arm is mounted on the second base and connected to the controller. The feed hopper includes a feed hopper and a discharge hopper. The controller controls the robotic arm to pick up coated particles from the feed hopper and place them into the small holes of the coated particle array arrangement device, and to pick up the coated particles one by one from the coated particle array arrangement device and place them into the discharge hopper.
[0013] A second aspect of this utility model provides an online non-destructive testing system for the thickness of each layer of coated particles, comprising: an online non-destructive testing device for the thickness of each layer of coated particles according to the first aspect; and a processor, wherein the processor is connected to an imaging component, the processor identifies the coating layer contours of the coated particles in the image acquired by the imaging component, and determines the coating layer thickness based on the distance between the coating layer contours.
[0014] Optionally, the processor is pre-configured with a first movement trajectory and a second movement trajectory for the sample platform.
[0015] Therefore, this utility model has the following beneficial effects: This invention comprises a first base, a second base, an imaging component, a sample stage, and an X-ray tube assembly. A coated particle array arrangement device is placed on the sample stage. The X-ray tube assembly emits X-rays that penetrate the particle array arrangement device. The imaging component collects the X-rays that have passed through the particle array arrangement device, acquiring an image of the coated particle array arrangement device. A controller moves the sample stage, and the imaging component acquires images of each coated particle in the particle array arrangement device. The images are transmitted to a processor, which identifies the coating layer contours of each coated particle in the image and determines the coating layer thickness based on the distance between each contour. Based on the microfocus X-ray imaging principle, non-destructive detection is achieved. The particles are easily recoverable, no radioactive waste is generated, and it is suitable for online automated detection on production lines. It offers high detection efficiency and accuracy with good repeatability. This solves the problem of related technologies failing to consider detection efficiency, making it difficult to achieve online detection of large quantities of coated particles on nuclear fuel element production lines.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a structural schematic diagram of an online non-destructive testing device for the thickness of each layer of coated particles according to the present invention; Figure 2 This is an example diagram of the coated particle array arrangement device provided according to the present invention; Figure 3 This is a structural diagram of the online non-destructive testing system for detecting the thickness of each layer of coated particles according to the present invention; Figure 4 This is a block diagram of an online non-destructive testing system for the thickness of each layer of coated particles, provided by this utility model.
[0018] Explanation of reference numerals in the attached figures: 10 - Online non-destructive testing device for the thickness of each layer of coated particles; 101 - Imaging component; 1011 - Acquisition component; 1012 - Objective lens component; 102 - Sample stage; 1021 - Second motion platform; 1022 - Third motion platform; 103 - X-ray tube assembly; 104 - Controller; 105 - First motion platform; 106 - Robotic arm; 107 - Feed hopper; 108 - Base; 1081 - First base; 1082 - Second base; 20 - Coated particle array arrangement device; 30 - Online non-destructive testing system for the thickness of each layer of coated particles; 301 - Processor. Detailed Implementation
[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0020] The following description, with reference to the accompanying drawings, describes an online non-destructive testing device and system for the thickness of each layer of coated particles according to this invention. Addressing the problem mentioned in the background art that it does not consider testing efficiency and makes it difficult to achieve online testing of large quantities of coated particles in nuclear fuel element production lines, this invention provides an online non-destructive testing device for the thickness of each layer of coated particles. This device includes a first base, a second base, an imaging component, a sample stage, and an X-ray tube assembly. A coated particle array arrangement device is placed on the sample stage. The X-ray tube assembly emits X-rays that penetrate the particle array arrangement device. The imaging component collects the X-rays that have passed through the particle array arrangement device, acquiring an image of the coated particle array arrangement device. A controller moves the sample stage, and the imaging component acquires images of each coated particle in the coated particle array arrangement device. The images are transmitted to a processor, which identifies the coating layer contours of each coated particle in the image and determines the coating layer thickness based on the distance between each coating layer contour. Based on the micro-focus X-ray imaging principle, non-destructive testing is achieved. The particles are easily recyclable, no radioactive waste is generated, and it is suitable for online automated testing on production lines. It offers high testing efficiency and accuracy, and good repeatability. This solves the problem that related technologies, which do not consider detection efficiency, make it difficult to achieve online detection of a large number of coated particles in nuclear fuel element production lines.
[0021] Specifically, Figure 1 This is a schematic diagram of the structure of an online non-destructive testing device for the thickness of each layer of coated particles provided by this utility model.
[0022] like Figure 1As shown, the online non-destructive testing device 10 for the thickness of each layer of coated particles includes: an imaging component 101, a sample stage 102, an X-ray tube assembly 103 and a controller 104, a first base 1081 and a second base 1082.
[0023] The second base 1082 is vertically mounted on the first base 1081. The imaging component 101 and the sample stage 102 are mounted on the second base 1082. The sample stage 102 holds the coated particle array arrangement device, and the imaging component 101 acquires images of the coated particle array arrangement device. The X-ray tube assembly 103 is positioned between the sample stage 102 and the first base 1081. The X-ray tube assembly 103 emits X-rays that penetrate the particle array arrangement device, and the imaging component 101 acquires the X-rays that have passed through the particle array arrangement device. The controller 104 is mounted on the first base 1081 and connected to the sample stage 102 and the imaging component 101, controlling the movement of the sample stage 102 and the imaging component 101. The imaging component 101 is connected to the processor 301, which identifies the coating layer contour of each coated particle in the image of the coated particle array arrangement device and determines the coating layer thickness based on the distance between each coating layer contour.
[0024] It should be noted that, with Figure 2 For example, the coated particle array arrangement device 20 can adopt an 18-hole × 18-hole array with a total of 324 holes. The hole positions are designed in a bowl shape, which can hold 324 particles. The specific array size can be set according to actual needs, and no specific limitation is made here.
[0025] It is understandable that the second base 1082 is vertically positioned above the first base 1081, and at the same time, as Figure 3 As shown, the first base 1081 and the second base 1082 are combined to form the base 108; the imaging component 101 and the sample stage 102 are mounted on the second base 1082. The sample stage 102 is used to support the coated particle array arrangement device 20, while the imaging component 101 is responsible for acquiring images of these particles. The X-ray tube assembly 103 is located below the sample stage 102 and close to the first base 1081, and is used to emit X-rays to penetrate the particle array arrangement device. The imaging component 101 receives the penetrated X-rays to generate images. The controller 104 is mounted on the first base 1081, connects to and controls the movement of the sample stage 102 and the imaging component 101. The processor 301 acquires image data from the imaging component 101, analyzes the images to identify the coating layer contour of each coated particle, and calculates the specific thickness of the coating layer based on the distance between these contours, thereby achieving efficient and accurate measurement of the thickness of each layer of the coated particles.
[0026] It should be noted that the processor 301 is pre-configured with an image processing algorithm, which is used to analyze the image to identify the coating layer contour of each coated particle. For example, the Canny algorithm is a commonly used edge detection algorithm in computer vision. In this application, it can identify the coating layer contour of each coated particle. Since this algorithm is a conventional algorithm in this field, in order to avoid redundancy, the relevant content of the image processing algorithm will not be described.
[0027] In this utility model, such as Figure 3 As shown, the imaging component 101 includes an acquisition component 1011 and an objective lens component 1012, wherein the objective lens component 1012 includes a first lens and a second lens.
[0028] Among them, the acquisition component 1011 is a CCD (Charge-Coupled Device) detector, which is a device that converts optical signals into electrical signals. During the imaging process, it can receive X-rays after passing through the coated particle array arrangement device 20 and convert them into digital images. The objective lens assembly 1012 includes a first lens and a second lens. The first lens is a wide field of view lens, which can capture an overall image with a large field of view. The second lens is a high-resolution lens with a smaller field of view but higher resolution, which can capture clear local images.
[0029] It is understood that the imaging component 101 of this utility model includes an acquisition component 1011 and an objective lens component 1012. Specifically, the acquisition component 1011 is responsible for receiving X-rays after they penetrate the coated particle array arrangement device 20 and converting them into digital images that can be analyzed. The objective lens component 1012 includes a first lens and a second lens. The first lens is a wide field of view lens with a large field of view, mainly used for preliminary global scanning and positioning of the sample. The second lens is a high-resolution lens. Although the field of view is smaller, the resolution is higher, which is suitable for detailed imaging of individual coated particles, so as to accurately identify the contours of each layer and calculate the thickness. Through this combination, the imaging component 101 can efficiently and accurately complete the imaging task of coated particles.
[0030] In this invention, the controller 104 controls the movement of the sample stage 102 using a pre-configured first movement trajectory and a second movement trajectory. The pre-configured first movement trajectory is as follows: taking the image range captured by the first lens as a module, starting from the center position of the module, and moving layer by layer from the inside out according to the trajectory, with each coated particle as a unit. During the movement of the sample stage 102, all coated particles in the module are presented one by one within the field of view of the second lens. The pre-configured second movement trajectory is as follows: starting from the module at the center position of the coated particle array arrangement device 20, and moving layer by layer from the inside out, with each module as a unit. During the movement of the sample stage 102, all coated particles in the coated particle array arrangement device are presented one by one within the field of view of the first lens, with each module as a unit.
[0031] It is understood that the controller 104 of this utility model controls the movement of the sample stage 102 through two preset movement trajectories. The first movement trajectory starts from the center of the module and moves layer by layer from the inside out, so that each coated particle in the module enters the field of view of the second lens in sequence. The second movement trajectory starts from the module at the center of the coated particle array arrangement device 20 and moves layer by layer from the inside out, so that each module in the coated particle array arrangement device 20 enters the field of view of the first lens in sequence. This enables the imaging observation of coated particles and ensures that all coated particles can be captured by the second lens in detail, thereby achieving efficient and accurate detection of the thickness of each layer. This ensures that even the detection of a large number of coated particles can maintain high accuracy and efficiency.
[0032] In this invention, the imaging component 101 is mounted on the second base 1082 via a first motion platform 105. The first motion platform 105 allows the imaging component 101 to move vertically along the second base 1082. The first motion platform 105 drives the imaging component 101 to move vertically along the second base 1082.
[0033] It is understood that the imaging component 101 of this utility model is mounted on the second base 1082 via the first motion platform 105. At the same time, the imaging component 101 can move vertically along the second base 1082 by being driven by the first motion platform 105. The controller 104 is set on the first base 1081. The movement of the imaging component 101, this layout design allows the imaging component 102 to be precisely positioned and moved on the second base 1082, thereby realizing the adjustment of the distance between the imaging component 101 and the sample stage 102 according to the needs, effectively coordinating various actions in the entire detection process, and realizing an efficient and accurate detection process.
[0034] In this invention, the controller 104 controls the three-dimensional movement of the sample stage 102, such as... Figure 3 As shown, the sample stage 102 includes a second motion platform 1021 and a third motion platform 1022, wherein the third motion platform 1022 is vertically connected to the second motion platform 1021. The third motion platform 1022 is disposed on the second base 1082 and allows it to move vertically along the second base 1082. The third motion platform 1022 drives the second motion platform 1021 to move vertically along the second base 1082. The second motion platform 1021 is allowed to move horizontally perpendicular to the second base 1082. The coated particle array arrangement device 20 is placed on the second motion platform 1021. The X-ray tube assembly 103 is disposed on the third motion platform 1022. The controller 104 controls the third motion platform 1022 to move vertically along the second base 1082, thereby driving the X-ray tube assembly 103 to move vertically along the second base 1082.
[0035] The third motion platform 1022 and the second motion platform 1021 constitute the three-dimensional movement mechanism of the sample stage 102. The third motion platform 1022 is mainly used for movement in the vertical direction (i.e., the Z-axis), while the second motion platform 1021 moves in the horizontal plane (i.e., the X-axis and Y-axis). At the same time, the third motion platform 1022 can drive the X-ray tube assembly 103 to move in the vertical direction along the second base 1082.
[0036] It is understood that the controller 104 of this utility model controls the sample stage 102 to move in three dimensions. The sample stage 102 consists of a third motion platform 1022 and a second motion platform 1021, which are vertically arranged and connected. The third motion platform 1022 is set on the second base 1082 and can move vertically along the second base 1082 under the control of the controller 104, thereby driving the second motion platform 1021 connected to it to move up and down. The second motion platform 1021 is allowed to move freely in a horizontal plane perpendicular to the second base 1082. Through the vertical movement of the third motion platform 1022 and the horizontal movement of the second motion platform 1021, the sample stage 102 is accurately positioned in three-dimensional space. At the same time, it drives the X-ray tube assembly 103 to move vertically along the second base 1082, ensuring that each coated particle can be accurately positioned and imaged, thereby supporting efficient and accurate detection of each layer thickness, ensuring the flexibility and accuracy of the system, and meeting the needs of automated online detection.
[0037] It should be noted that the X-ray tube assembly 103 of this utility model is disposed between the second motion platform 1021 and the first base 1081, that is, below the second motion platform 1021. This ensures that when the second motion platform 1021 moves in its horizontal plane, the X-ray tube assembly 103 can stably emit X-rays to penetrate the coated particle array arrangement device 20 placed on the platform, thereby enabling the imaging assembly 101 to capture high-quality images for further analysis of the thickness of each layer.
[0038] This invention also includes a loading and unloading unit, which is used to place or remove the coated particles from the sample stage. The loading and unloading unit includes a robotic arm and an inlet / outlet hopper.
[0039] It is understood that this utility model also includes a loading and unloading unit for automatically placing or removing coated particles onto or from the sample stage 102. This unit can efficiently complete the loading and unloading process of coated particles, achieving automation, improving detection efficiency, reducing manual intervention, and ensuring that each coated particle can be accurately positioned and detected. This supports the high-precision and automated operation of the system and is suitable for the online non-destructive testing needs of large-scale production lines.
[0040] In this utility model, such as Figure 3 As shown, the robotic arm 106 is mounted on the second base 1082. The robotic arm 106 is connected to the controller 104. The feed hopper 107 includes a feed hopper and a discharge hopper. The controller 104 controls the robotic arm 106 to pick up coated particles from the feed hopper and put them into the small holes of the coated particle array arrangement device 20, and to pick up the coated particles one by one from the coated particle array arrangement device 20 and put them into the discharge hopper.
[0041] Among them, the robotic arm 106 is an automated device that can perform precise actions under the instructions of the controller 104, such as picking up, moving and placing objects.
[0042] It is understood that this utility model uses a robotic arm 106 mounted on the second base 1082 to pick up coated particles from the discharge bin and place them into the small holes of the coated particle array arrangement device 20. After the inspection is completed, the coated particles are picked up one by one from the coated particle array arrangement device 20 and placed into the discharge bin, thus realizing the automated loading and unloading of the coated particle array arrangement device 20, improving the inspection efficiency, reducing manual intervention, and ensuring the efficient operation and high-precision inspection of the system.
[0043] According to the present invention, an online non-destructive testing device for the thickness of each layer of coated particles is proposed. A sample stage is used to place a coated particle array arrangement device. An X-ray tube assembly emits X-rays that penetrate the particle array arrangement device. An imaging component collects the X-rays that have passed through the particle array arrangement device, acquiring an image of the coated particle array arrangement device. A controller is connected to the sample stage and the acquisition component, controlling their movement. The imaging component acquires images of each coated particle in the coated particle array arrangement device and transmits the images to a processor. The processor identifies the coating layer contours of each coated particle in the image and determines the coating layer thickness based on the distance between each coating layer contour. Based on the micro-focus X-ray imaging principle, non-destructive testing is achieved. The particles are easily recyclable, no radioactive waste is generated, and it is suitable for online automated testing on production lines. It offers high testing efficiency and accuracy, and good repeatability.
[0044] Next, refer to the appendix. Figure 4 This invention describes an online non-destructive testing system for the thickness of each layer of coated particles, based on the present invention.
[0045] Figure 4 This is a schematic diagram of the online non-destructive testing system for the thickness of each layer of coated particles according to this utility model. Figure 4 As shown, the online non-destructive testing system 30 for the thickness of each layer of coated particles includes: an online non-destructive testing device 10 for the thickness of each layer of coated particles and a processor 301.
[0046] The processor 301 is connected to the imaging component 101. The processor 301 identifies the coating layer contour of the coated particles in the image acquired by the imaging component 101 and determines the coating layer thickness based on the distance between the coating layer contours.
[0047] It is understood that the processor 301 of this utility model is connected to the imaging component 101 and is responsible for receiving image data of the coated particle array arrangement device 20 captured by the imaging component 101. Through the image recognition algorithm built into the processor 301, the image provided by the imaging component 101 is analyzed to identify the coating layer contour of each coated particle. Based on the distance between these contours, the processor 301 can accurately calculate the thickness of each layer, realizing seamless connection from image acquisition to data analysis, as well as efficient and accurate measurement of the thickness of each layer of coated particles.
[0048] In this invention, the processor 301 is pre-configured with a first moving trajectory and a second moving trajectory of the sample stage 102.
[0049] It is understood that the processor 301 of this utility model is pre-configured with a first moving trajectory and a second moving trajectory of the sample stage 102, which are provided to the controller 104 to control the movement of the sample stage 102, ensuring that the sample stage 102 can move according to the preset trajectory, and ensuring that each coated particle is captured by the imaging component 101.
[0050] According to the online non-destructive testing system for the thickness of each layer of coated particles proposed in this utility model, the image acquired by the online non-destructive testing device for the thickness of each layer of coated particles can be further processed and analyzed by the processor to obtain the coating layer contour of each coated particle, and the thickness of each layer can be accurately calculated based on the distance between these contours. This achieves seamless connection from image acquisition to data analysis, as well as efficient and accurate measurement of the thickness of each layer of coated particles.
[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An online non-destructive testing device for the thickness of each layer of coated particles, characterized in that, include: A first base and a second base, wherein the second base is vertically disposed on the first base; An imaging component and a sample stage are disposed on the second base, wherein the sample stage holds a coated particle array arrangement device, and the imaging component acquires images of the coated particle array arrangement device; An X-ray tube assembly is disposed between the sample stage and the first base. The X-ray tube assembly emits X-rays that penetrate the particle array arrangement device. The imaging component collects the X-rays that have passed through the particle array arrangement device. A controller is mounted on the first base, wherein the controller is connected to the sample stage and the imaging component, and controls the movement of the sample stage and the imaging component. The imaging component is connected to a processor, and the processor identifies the coating layer contour of each coated particle in the image of the coated particle array arrangement device, and determines the coating layer thickness based on the distance between each coating layer contour.
2. The online non-destructive testing device for the thickness of each layer of coated particles according to claim 1, characterized in that, The imaging assembly includes an acquisition assembly and an objective lens assembly, the objective lens assembly including a first lens and a second lens.
3. The online non-destructive testing device for the thickness of each layer of coated particles according to claim 2, characterized in that, The controller controls the movement of the sample stage using a pre-configured first movement trajectory and a second movement trajectory, wherein the pre-configured first movement trajectory is: The image range captured by the first lens is taken as a module. Starting from the center of the module, the sample stage moves layer by layer from the inside out along a trajectory, with each coated particle as a unit. During the movement of the sample stage, all coated particles in the module are presented one by one in the field of view of the second lens. The pre-configured second movement trajectory is: Starting from the module at the center of the coated particle array arrangement device, the sample stage moves layer by layer from the inside out, module by module. During the movement of the sample stage, all the coated particles of the coated particle array arrangement device are presented one by one in the field of view of the first lens, module by module.
4. The online non-destructive testing device for the thickness of each layer of coated particles according to claim 1, characterized in that, The imaging component is mounted on the second base via a first motion platform. The first motion platform allows the imaging component to move vertically along the second base, and the first motion platform drives the imaging component to move vertically along the second base.
5. The online non-destructive testing device for the thickness of each layer of coated particles according to claim 1, characterized in that, The controller controls the three-dimensional movement of the sample stage. The sample stage includes a second motion platform and a third motion platform. The third motion platform is vertically connected to the second motion platform. The third motion platform is disposed on the second base and is allowed to move vertically along the second base. The third motion platform drives the second motion platform to move vertically along the second base. The second motion platform is allowed to move horizontally perpendicular to the second base. A coated particle array arrangement device is placed on the second motion platform.
6. The online non-destructive testing device for the thickness of each layer of coated particles according to claim 5, characterized in that, The X-ray tube assembly is mounted on the third motion platform, and the controller controls the third motion platform to move vertically along the second base, thereby causing the X-ray tube assembly to move vertically along the second base.
7. The online non-destructive testing device for the thickness of each layer of coated particles according to claim 1, characterized in that, Also includes: The loading and unloading unit is used to put the coated particles into or remove them from the sample stage. The loading and unloading unit includes a robot and an inlet / outlet hopper.
8. The online non-destructive testing device for the thickness of each layer of coated particles according to claim 7, characterized in that, The robotic arm is mounted on the second base and is connected to the controller. The feed hopper includes a feed hopper and a discharge hopper. The controller controls the robotic arm to pick up coated particles from the feed hopper and place them into the small holes of the coated particle array arrangement device, and to pick up the coated particles one by one from the coated particle array arrangement device and place them into the discharge hopper.
9. An online non-destructive testing system for the thickness of each layer of coated particles, characterized in that, include: The online non-destructive testing device for the thickness of each layer of coated particles as described in any one of claims 1-8; A processor, wherein the processor is connected to the imaging component, the processor identifies the coating layer contours of coated particles in the image acquired by the imaging component, and determines the coating layer thickness based on the distance between the coating layer contours.
10. The online non-destructive testing system for the thickness of each layer of coated particles according to claim 9, characterized in that, The processor is pre-configured with a first movement trajectory and a second movement trajectory for the sample stage.