A new type of nuclear radiation visual detection device

CN224745145UActive Publication Date: 2026-09-11CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719
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Patent Information

Application Number
CN202522145222.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-10
Publication Date
2026-09-11
Estimated Expiration
2035-10-10

AI Technical Summary

Technical Problem

通过步进电机驱动传感器进行二维扫描,检测速度慢缺乏对近距离辐射热点的高精度定位能力,难以满足核设施细微泄漏检测的需求

Benefits of technology

[0017]本实用新型,通过设置空间定位组件,利用双摄像组件配合双传感器实现辐射源的三维空间定位;固定的会聚角设计,对近场提高了设备调试速度和进场检测精度,满足快速检测需要;通过设可拆卸的保护盖板,利用磁体固定能够对传感器提供防护并方便快速打开。

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Abstract

The utility model relates to nuclear radiation detection equipment technical field, concretely is a new type nuclear radiation visual detection device, include: detector main part, detector main part is gun shape, including equipment cabin and handle, equipment cabin tail end is equipped with display component, display component is inclined 30-45 up, and equipment cabin front end is equipped with detection component, and equipment cabin head side is equipped with space positioning component. The utility model, through setting space positioning component, utilizes double camera component cooperation double sensor to realize the three -dimensional space orientation of radiation source, the fixed convergence angle design has improved equipment debugging speed and approach detection accuracy to near field, satisfies the need of rapid detection, through being equipped with detachable protective cover, utilizes magnet fixed can provide protection to sensor and open conveniently and quickly.
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Description

Technical Field

[0001] This utility model relates to the field of nuclear radiation detection equipment technology, specifically a novel visual nuclear radiation detection device. Background Technology

[0002] Nuclear radiation detection equipment refers to instruments and devices that detect ionizing radiation through sensors and perform quantitative analysis. In scenarios such as nuclear facility inspection, radiation environment monitoring, and nuclear emergency response, traditional radiation dosimeters can only provide single-point measurement data and cannot intuitively reflect the spatial distribution characteristics of the radiation field. With the expansion of nuclear technology applications, the demand for three-dimensional visualization of the radiation field is becoming increasingly prominent. This requires detection equipment to not only accurately measure radiation intensity but also have spatial positioning capabilities.

[0003] Existing radiation field visualization solutions are primarily based on mechanical scanning radiation imaging systems. These systems use stepper motors to drive sensors for two-dimensional scanning, resulting in slow detection speeds and a lack of high-precision localization capabilities for near-field radiation hotspots, making them unsuitable for detecting minute leaks in nuclear facilities. They also suffer from significant shortcomings in terms of equipment portability and ease of operation, limiting their effectiveness in complex field environments. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a novel visual detection device for nuclear radiation.

[0005] The technical solution of this utility model is:

[0006] A novel visual detection device for nuclear radiation includes:

[0007] The detector body is gun-shaped and includes an equipment compartment and a handle. The rear end of the equipment compartment is equipped with a display component, which is tilted upward at 30-45°. The front end of the equipment compartment is equipped with a detection component, and the two sides of the head of the equipment compartment are equipped with spatial positioning components.

[0008] The detection assembly includes two parallel sensors, the front of which is covered by a removable protective cover.

[0009] The spatial positioning component includes symmetrically arranged camera components, which are parallel to the sensor and whose optical axes form a convergence angle of 1-3°.

[0010] Preferably, the grip is equipped with a control switch for controlling the operation of the sensor, and several adjustment buttons are provided below the display component for controlling the operating mode of the device.

[0011] Preferably, the equipment compartment has several expansion interfaces symmetrically arranged on both sides of the middle section, and the expansion interfaces are used to connect camera components or other expansion devices.

[0012] Preferably, the protective cover includes a cover plate with chamfered edges, and the cover plate is provided with a plurality of positioning pins and magnetic blocks on the side facing the equipment compartment, the magnetic blocks being used to attract the end face of the equipment compartment.

[0013] Preferably, the two sensors are used to detect different rays, the center distance between the sensors is 8-12cm, and a partition is provided between the two sensors.

[0014] Preferably, the spatial positioning component further includes a U-shaped bracket, which is located at the head of the equipment compartment. The camera component is fixed to both sides of the U-shaped bracket by a camera bracket, and the contact portion between the camera bracket and the U-shaped bracket is wedge-shaped.

[0015] Preferably, the top of the U-shaped bracket is provided with two parallel adjustment slots, and the adjustment slots are provided with fixing screws. The U-shaped bracket is fixedly connected to the equipment compartment by the fixing screws.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention achieves three-dimensional spatial positioning of the radiation source by setting up a spatial positioning component and using a dual-camera component in conjunction with dual sensors; the fixed convergence angle design improves the equipment debugging speed and on-site detection accuracy in the near field, meeting the needs of rapid detection; and the detachable protective cover, fixed with magnets, provides protection for the sensor and allows for easy and quick opening. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a first schematic diagram of the cover plate of this utility model in the open state;

[0020] Figure 3 This is a second schematic diagram showing the cover plate of this utility model in the open state;

[0021] Figure 4 This is a top view of the cover plate of this utility model in the open state.

[0022] The meanings of the labels in the diagram are as follows:

[0023] 1. Main body of the detector; 11. Equipment compartment; 12. Handle; 13. Control switch; 14. Display component; 15. Adjustment button; 16. Expansion interface;

[0024] 2. Detection components; 21. First sensor; 22. Second sensor; 23. Partition; 24. Positioning pin; 25. Cover plate; 26. Magnetic block;

[0025] 3. Spatial positioning component; 31. Camera component; 32. U-shaped bracket; 33. Adjustment groove; 34. Fixing screw; 35. Camera bracket. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0027] Example 1:

[0028] Please see Figure 1-4 The present invention will describe the above technical solution in detail through the following embodiments:

[0029] A novel visual detection device for nuclear radiation includes:

[0030] The detector body 1 is gun-shaped and includes an equipment compartment 11 and a handle 12. The rear end of the equipment compartment 11 is provided with a display component 14, which is tilted upward at 30-45°. The front end of the equipment compartment 11 is provided with a detection component 2, and the two sides of the head of the equipment compartment 11 are provided with spatial positioning components 3.

[0031] The equipment compartment 11 and grip 12 are made of plastic and are fixed with screws and clips. The interior is used to install the control motherboard, battery and other equipment. The equipment is powered by battery and the charging interface is located on the grip 12.

[0032] The detection component 2 includes two parallel sensors, with a removable protective cover covering the front of each sensor.

[0033] The two sensors are used to detect different types of radiation.

[0034] The sensor includes a first sensor 21 and a second sensor 22. The first sensor 21 uses a NaI(Tl) scintillator detector, which mainly detects gamma rays and X-rays. The second sensor 22 uses a GM counter tube, which mainly detects beta rays and gamma rays.

[0035] The spatial positioning component 3 includes symmetrically arranged camera components 31, which are parallel to the sensor and whose optical axes form a convergence angle of 1-3°.

[0036] The camera assembly 31 uses a radiation-resistant camera. In this embodiment, the convergence angle is designed to be 1°±0.2°. The sensor direction of the camera assembly 31 is deflected, with a small inward deflection, which can improve the visual resolution of near targets, improve the accuracy of depth calculation, and improve the positioning accuracy of near-field radiation sources.

[0037] A binocular system consisting of two cameras mimics the human binocular parallax perception of depth. It simultaneously captures scene images using two horizontally positioned cameras with a baseline distance of 10-15cm. By acquiring images from both left and right perspectives at the same time, and after feature extraction and calculation, the distance to target points is obtained, thus constructing a 3D scene. Combined with radiation intensity information detected by sensors, a 3D radiation field model can be built. Furthermore, the location of radiation sources can be deduced based on changes in radiation intensity.

[0038] The handle 12 is equipped with a control switch 13 for controlling the operation of the sensor, and several adjustment buttons 15 are provided below the display component 14 for controlling the operating mode of the device.

[0039] Display component 14 is used to display the sensor's detection results, such as radiation type and radiation intensity. It can also display three-dimensional images captured by spatial positioning component 3.

[0040] Several expansion interfaces 16 are symmetrically arranged on both sides of the middle of the equipment compartment 11. The expansion interfaces 16 are used to connect the camera component 31 or other expansion devices.

[0041] The camera assembly 31 is connected to the expansion interface 16 via a data cable to transmit image data to the detector body 1. The detector body 1 can also transmit data to external devices via the expansion interface 16 to improve computing power.

[0042] The protective cover includes a cover plate 25 with chamfered edges. The cover plate 25 is provided with several positioning pins 24 and magnetic blocks 26 on the side facing the equipment compartment 11. The magnetic blocks 26 are used to attract the end face of the equipment compartment 11.

[0043] The locating pin 24 is inserted into the end face of the equipment compartment 11 for quick positioning of the cover plate 25 and to limit the horizontal and longitudinal movement of the cover plate 25. The magnetic block 26 is used to fix the cover plate 25.

[0044] The cover plate has a chamfered edge for easy disassembly.

[0045] The cover plate 25 is made of a metal material with radiation shielding capabilities.

[0046] The center distance between the sensors is 8-12cm, and a partition 23 is provided between the two sensors.

[0047] The partition 23 is made of electromagnetic shielding material to block electromagnetic interference between the two sensors.

[0048] The spatial positioning component 3 also includes a U-shaped bracket 32, which is located at the head of the equipment compartment 11. The camera component 31 is fixed on both sides of the U-shaped bracket 32 ​​by a camera bracket 35, and the contact part between the camera bracket 35 and the U-shaped bracket 32 ​​is wedge-shaped.

[0049] The camera bracket 35 is fixedly connected to the U-shaped bracket 32 ​​by screws, and the camera assembly 31 is fixed to the camera bracket 35 by screws. The angle of the camera bracket 35 is fixed.

[0050] The top of the U-shaped bracket 32 ​​is provided with two parallel adjustment slots 33, and a fixing screw 34 is provided at the adjustment slot 33. The U-shaped bracket 32 ​​is fixedly connected to the equipment compartment 11 by the fixing screw 34.

[0051] The adjustment groove 33 adopts an oblong groove, and when the fixing screw 34 is loosened, the U-shaped bracket 32 ​​can be adjusted back and forth slightly.

[0052] The U-shaped bracket 32 ​​features a detachable design, making it easy to store the equipment.

[0053] Working principle:

[0054] Before use, remove the cover plate 25.

[0055] Hold the handle 12, align the front of the device compartment 11 with the location to be scanned, and press the control switch 13 with your index finger. At this time, the first sensor 21, the second sensor 22 and the camera assembly 31 will start working.

[0056] The first sensor 21 and the second sensor 22 detect the radiation intensity at their respective locations, and the camera assembly 31 captures images along the axis of the equipment compartment 11.

[0057] The detection data from the first sensor 21 and the second sensor 22 are directly displayed by the display component 14.

[0058] Image data is transmitted to the detector body 1 or to an external device via the expansion interface 16, and works with the first sensor 21 and the second sensor 22 to construct a three-dimensional radiation field intensity image.

[0059] The image can be displayed by the display component 14 or by an external device.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel nuclear radiation visual detection device, characterized in that, include: The detector body (1) is gun-shaped and includes a device compartment (11) and a handle (12). The device compartment (11) is equipped with a display component (14) at the rear end. The display component (14) is tilted upward at 30-45°. The device compartment (11) is equipped with a detection component (2) at the front end. The device compartment (11) is equipped with spatial positioning components (3) on both sides of the head. The detection component (2) includes two parallel sensors, the front of which is covered by a removable protective cover. The spatial positioning component (3) includes a symmetrically arranged camera component (31), which is parallel to the sensor and the optical axis of the camera component (31) forms a convergence angle of 1-3°.

2. A novel nuclear radiation visual detection device as claimed in claim 1, characterized in that: The grip (12) is equipped with a control switch (13) for controlling the operation of the sensor, and several adjustment buttons (15) are provided below the display component (14) for controlling the working mode of the device.

3. The novel nuclear radiation visual detection device as described in claim 1, characterized in that: The equipment compartment (11) is provided with several expansion interfaces (16) symmetrically on both sides of the middle part. The expansion interfaces (16) are used to connect the camera assembly (31) or other expansion devices.

4. A novel nuclear radiation visual detection device as claimed in claim 1, wherein: The protective cover includes a cover plate (25), the edge of the cover plate (25) is chamfered, and the cover plate (25) is provided with a number of positioning pins (24) and magnetic blocks (26) on the side facing the equipment compartment (11). The magnetic blocks (26) are used to attract the end face of the equipment compartment (11).

5. A novel nuclear radiation visual detection device as claimed in claim 1, characterized in that: The two sensors are used to detect different rays respectively, the center distance between the sensors is 8-12cm, and a partition (23) is provided between the two sensors.

6. The novel nuclear radiation visual detection device as described in claim 1, characterized in that: The spatial positioning component (3) also includes a U-shaped bracket (32), which is located at the head of the equipment compartment (11). The camera component (31) is fixed on both sides of the U-shaped bracket (32) by a camera bracket (35), and the contact part between the camera bracket (35) and the U-shaped bracket (32) is wedge-shaped.

7. A novel nuclear radiation visual detection device as claimed in claim 6, characterized in that: The top of the U-shaped bracket (32) is provided with two parallel adjustment slots (33), and the adjustment slots (33) are provided with fixing screws (34). The U-shaped bracket (32) is fixedly connected to the equipment compartment (11) by fixing screws (34).