A detection device

Abstract

The application relates to the technical field of detection, and provides a detection device, which comprises a shell and multiple light guide detectors, the shell is formed with a containing cavity, the light guide detector comprises a sensitive body and a fiber port arranged at one end of the sensitive body, the multiple light guide detectors are arranged along a first direction to form a first unit, and the fiber ports of the first unit all face a second direction; the multiple light guide detectors are arranged along a second direction to form a second unit, and the fiber ports of the second unit all face the first direction; the first unit and the second unit are stacked along a third direction to form a detection array; and the detection array is arranged in the containing cavity. In this way, the multiple fiber ports face different directions respectively, the problem that the light guides of different layers of light guide detectors are difficult to stack due to the limited distance between the fibers can be solved, and the detection performance of the detection device can be improved.

Description

Technical Field

[0001] This application relates to the field of detection technology, and in particular to a detection device. Background Technology

[0002] A photoconductive detector is a detector used to detect cosmic rays, gamma rays, or X-rays. It consists of a sensor and an optical fiber, with the fiber positioned at one end of the sensor along its axial direction. When rays strike the sensor, fluorescence is generated, and this fluorescence is transmitted through the optical fiber to a photoelectric device.

[0003] In related technologies, multiple optical detectors are arranged roughly in one plane to form a detection unit, which is placed in a box. Multiple boxes are stacked to form a detection array. In this way, the rays need to pass through the end faces of multiple boxes to reach the sensor, which hinders the sensor from receiving the rays and results in poor detection performance of the detection array. Summary of the Invention

[0004] In view of this, the present application aims to provide a detection device that can improve the detection performance of the detection device.

[0005] This application provides a detection device, including:

[0006] The shell has a receiving cavity;

[0007] Multiple optical guide detectors, each comprising a sensor and an optical fiber port disposed at one end of the sensor, are arranged along a first direction to form a first unit, with the optical fiber ports of the first unit all facing a second direction; the multiple optical guide detectors are arranged along a second direction to form a second unit, with the optical fiber ports of the second unit all facing the first direction; the first unit and the second unit are stacked along a third direction to form a detection array; the detection array is disposed within the receiving cavity, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

[0008] In some embodiments, the detection device includes a base disposed within the receiving cavity. The base includes a base plate, a first side plate, and a second side plate. The first side plate is disposed on one side of the base along a first direction, and the second side plate is disposed on one side of the base along a second direction, so as to jointly define a limiting space. The detection array is disposed within the limiting space. The portion of the first unit away from the optical fiber port abuts against the second side plate, and the portion of the second unit away from the optical fiber port abuts against the first side plate.

[0009] In some embodiments, a buffer strip is filled between the base and the detection array.

[0010] In some embodiments, the detection device includes:

[0011] A pressure strip, the pressure strip abutting against one side of the detection array along a third direction;

[0012] A locking element is connected to the housing, and a portion of the locking element presses against the pressure strip.

[0013] In some embodiments, the locking element includes:

[0014] The fixing part is connected to the housing;

[0015] The clamping part is hinged to the fixing part;

[0016] The gripping part is hinged to the clamping part, and the gripping part drives the clamping part to press against or move away from the pressure bar.

[0017] In some embodiments, the clamping part includes an adjusting arm, a clamping column, and a locking nut. The adjusting arm is hinged to the fixing part. The clamping column is used to clamp the pressure bar. The adjusting arm forms an adjusting groove. The clamping column passes through the adjusting groove and can slide along the length direction of the adjusting groove. The locking nut is threadedly engaged with the clamping column to lock or release the clamping column.

[0018] In some embodiments, the pressure strip has protrusions at both ends along its length, and the detection array abuts against the protrusions at both ends along a first direction.

[0019] In some embodiments, a buffer strip is filled between the pressure strip and the detection array.

[0020] In some embodiments, the detection device includes a first limiting member disposed on one side of the detection array along a second direction, the first limiting member being connected to the housing, and the detection array abutting against the first limiting member.

[0021] In some embodiments, the first limiting member includes a limiting plate and a base plate, the base plate being connected to the housing, and the limiting plate being connected to the base plate and abutting against one side of the detection array along the second direction.

[0022] In some embodiments, the detection device includes a second limiting member, and the detection array abuts against the second limiting member on one side along a first direction.

[0023] In some embodiments, the housing includes a bottom shell and a cover shell, the bottom shell and the cover shell being snapped together to define the receiving cavity, and at least one of the bottom shell and the cover shell being provided with a seal to seal the gap between the bottom shell and the cover shell.

[0024] In some embodiments, the cover and the bottom shell are rotatably connected on one side, the detection device includes a telescopic member that connects the housing and the cover, the cover has multiple preset positions in the rotational direction, and the telescopic member enables the cover to be held in any one of the multiple preset positions.

[0025] The detection device provided in this application embodiment has multiple optical waveguide detectors arranged to form a first unit and a second unit. The two units are stacked along a third direction, such as vertically, to form a detection array. The multiple optical fiber ports face different directions, which can solve the problem that the distance between the optical fibers of different layers of optical waveguide detectors is limited and difficult to stack. In this way, the detection array can be set in the cavity of the same housing. Thus, the rays only need to penetrate one end face of the housing, instead of penetrating multiple end faces as in related technologies. Therefore, the detection performance of the detection device is improved. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the detection device according to some embodiments of this application;

[0027] Figure 2 This is a schematic diagram of the structure of the detection array in some embodiments of this application;

[0028] Figure 3 For this application Figure 1 Enlarged view of point A in the middle;

[0029] Figure 4 For this application Figure 2 Enlarged view at point B in the middle;

[0030] Figure 5 This is a schematic diagram of the structure of the base and the second limiting member in some embodiments of this application;

[0031] Figure 6 This is a schematic diagram of the detector array and buffer bar in some embodiments of this application;

[0032] Figure 7 For this application Figure 6 Another structural diagram from a different perspective;

[0033] Figure 8 For this application Figure 1 Partial structural diagram;

[0034] Figure 9 This is a schematic diagram of the structure of a locking component according to some embodiments of this application.

[0035] Explanation of reference numerals in the attached figures

[0036] Detection device 100; housing 10; receiving cavity 10a; bottom shell 11; shell cover 12; sealing element 13; telescopic element 14; detection array 20; optical guide detector 21; optical fiber port 21a; sensor 211; optical fiber 212; first unit 22; second unit 23; pressure strip 30; protrusion 31; locking element 40; fixing part 41; clamping part 42; adjusting arm 421; adjusting groove 421a; pressing column 422; locking nut 423; gripping part 43; buffer strip 50; first limiting element 60; bottom plate 61; limiting plate 62; reinforcing plate 63; second limiting element 70; base 80; base 81; limiting space 81a; opening 81b; first side plate 82; second side plate 83. Detailed Implementation

[0037] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0038] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features / embodiments can form different implementation methods. To avoid unnecessary repetition, the various possible combinations of various specific technical features / embodiments in this application will not be described separately. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] It should be noted that in this application, one of the first direction and the second direction can be a front-back direction, and the other of the first direction and the second direction can be a left-right direction. The third direction is the up-down direction. Down refers to the direction towards the ground, and up is the opposite of down. Front refers to the direction towards the user, and back is the opposite of front. Left refers to the side where the user's left hand is when the user is in front of the shell, and right is the opposite of left. The front-back, left-right, and up-down directions are perpendicular to each other and together constitute a three-dimensional vertical coordinate system.

[0040] In related technologies, a photodetector has an extended optical fiber at one end along its axial direction. Multiple photodetectors are arranged roughly in a plane to form a detection unit. The distance between the optical fibers of two photodetectors is limited, for example, to about 1 cm. This necessitates placing a detection unit in a box with an opening, with the extended end of the optical fiber facing the opening for connection to optoelectronic devices. When multiple detection units need to be combined to detect the incident position information of rays, multiple boxes are stacked. Because of this stacking, the rays must penetrate the end faces of multiple boxes to reach the sensor, which to some extent hinders the sensor from receiving the rays, reducing detection performance and causing some low-energy rays to go undetected.

[0041] This application provides a detection device 100; please refer to [link / reference]. Figure 1 and Figure 2 The device includes a housing 10 and multiple optical detectors 21. The housing 10 forms a receiving cavity 10a. Each optical detector 21 includes a sensor 211 and an optical fiber port 21a disposed at one end of the sensor 211. The multiple optical detectors 21 are arranged along a first direction to form a first unit 22, and the optical fiber ports 21a of the first unit 22 all face a second direction. The multiple optical detectors 21 are arranged along the second direction to form a second unit 23, and the optical fiber ports 21a of the second unit 23 all face the first direction. The first unit 22 and the second unit 23 are stacked along a third direction to form a detection array 20. The detection array 20 is disposed in the receiving cavity 10a, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0042] The detection device 100 provided in this application embodiment has multiple optical waveguide detectors 21 arranged to form a first unit 22 and a second unit 23. The two are stacked along a third direction, such as vertically, to form a detection array 20. Multiple optical fiber ports 21a face different directions, which can solve the problem that the distance between the optical fibers 212 of different layers of optical waveguide detectors 21 is limited and difficult to stack. In this way, the detection array 20 can be set in the same housing 10 cavity 10a. Thus, the rays only need to penetrate one end face of the housing 10, instead of penetrating multiple end faces in related technologies. Therefore, the detection performance of the detection device 100 is improved.

[0043] For example, please refer to Figure 4 The sensor 211 is generally rectangular, and the fiber optic port 21a is used to house the fiber optic cable 212. For example, the fiber optic port 21a has a groove, the fiber optic cable 212 is fixed in the groove, and extends from one axial end of the sensor 211 to connect to the optoelectronic device. Thus, when radiation is incident on the sensor 211, fluorescence is generated, and the fluorescence is collected by the sensor 211 into the fiber optic cable 212 and transmitted to the optoelectronic device.

[0044] The optical fiber 212 can be a wave-shifting fiber to improve light collection and transmission efficiency. The sensor 211 can be a plastic scintillator, which is easy to manufacture and has good light transmittance. The housing 10 can be a low-Z material. For example, the housing can be made of aluminum, which has high strength and excellent machinability, making it easy to process and shape the housing 10 and improving the durability of the detection device 100. Here, low-Z material refers to a material with a low atomic number.

[0045] For example, please refer to Figure 2 and Figure 4 Multiple optical fiber detectors 21 are arranged in a front-to-back direction to form a first unit 22, and multiple optical fiber detectors 21 are arranged in a left-to-right direction to form a second unit 23. The first unit 22 and the second unit 23 are stacked in a vertical direction to form a detection array 20. The optical fiber port 21a of the first unit 22 faces to the right, and the optical fiber port 21a of the second unit 23 faces forward. In this way, the densely arranged optical fiber ports 21a are staggered, thereby reducing the tangling and knotting between closely spaced optical fibers 212, while increasing the layout space for optoelectronic devices connected to the optical fibers 212, facilitating the assembly and disassembly of the detection array 20, and improving the assembly efficiency of the detection device 100. In this embodiment, the first direction is the front-to-back direction, and the second direction is the left-to-right direction.

[0046] It should be noted that in the embodiments of this application, "multiple" refers to a quantity including two or more.

[0047] In some embodiments, please refer to Figure 5 The detection device 100 includes a base 80 disposed in a receiving cavity 10a. The base 80 includes a base 81, a first side plate 82 and a second side plate 83. The first side plate 82 is disposed on one side of the base 81 along a first direction, and the second side plate 83 is disposed on one side of the base 81 along a second direction, so as to jointly define a limiting space 81a. The detection array 20 is disposed in the limiting space 81a. The part of the first unit 22 away from the optical fiber port 21a abuts against the second side plate 83, and the part of the second unit 23 away from the optical fiber port 21a abuts against the first side plate 82.

[0048] For example, please continue reading Figure 5 The first side plate 82 is located on the rear side of the base 81, and the first side plate 83 is located on the left side of the base 81. The detector array 20 is positioned within the limiting space 81a and abuts against the first side plates 82 and 83, improving the stability of the detector array 20. Furthermore, the base 81 elevates the detector array 20, improving the ease of installation and removal, and allowing for quick replacement of damaged photoconductor detectors 21 during maintenance. In this embodiment, the first direction is the front-to-back direction, and the second direction is the left-to-right direction.

[0049] In one embodiment, please refer to Figure 5The base 81 has an opening 81b, which is aligned with the sensor 211 of the detection array 20. That is, with a plane perpendicular to a third direction as the projection plane, the projection of the sensor 211 of the detection array 20 lies within the projection range of the opening 81b. This prevents the base 81 from obstructing the sensor 211, improving the detection performance of the detection device 100. Furthermore, by reducing the contact area between the base 81 and the detection array 20, damage to the surface of the sensor 211 can be effectively reduced, increasing the service life of the detection device 100.

[0050] In some embodiments, please refer to Figure 6 A buffer strip 50 is placed between the base 81 and the detection array 20. The buffer strip 50 serves to cushion and absorb shock. It is understood that the buffer strip 50 is elastic, changing the contact between the detection array 20 and the base 81 from rigid to flexible, thus protecting the detection array 20. Simultaneously, the buffer strip 50 also provides friction, preventing the detection array 20 from sliding when the detection device 100 moves, thereby enhancing the stability of the detection array 20.

[0051] It should be noted that the buffer strip 50 has a certain degree of rigidity to prevent the linear bending of the detection array 20. The material of the buffer strip 50 is not limited; for example, it can be made of silicone, etc., so it can be reused and save costs.

[0052] In some embodiments, please refer to Figure 8 The detection device 100 includes a pressure strip 30 and a locking member 40. The pressure strip 30 abuts against one side of the detection array 20 along a third direction; the locking member 40 is connected to the housing 10, and a portion of the locking member 40 presses against the pressure strip 30. In other words, by fixing the pressure strip 30 and the locking member 40, the obstruction area of ​​the detection array 20 can be reduced while ensuring the stability of the detection array 20, thereby improving the detection performance of the detection device 100.

[0053] In one embodiment, please refer to Figure 8 There are three pressure strips 30, respectively positioned on the left, right, and rear sides of the upward-facing side of the detection array 20. Furthermore, there are multiple locking elements 40, evenly spaced along the front-back and left-right directions, ensuring a uniform distribution of pressure on the detection array 20 and protecting it from damage due to excessive pressure from any single locking element 40. In this embodiment, the first direction is the front-back direction, and the second direction is the left-right direction.

[0054] Understandably, since the three pressure strips 30 provide sufficient stability to the detection array 20, there is no need to set up a front pressure strip 30, which improves the assembly efficiency of the detection array 20 and saves costs.

[0055] In some embodiments, please refer to Figure 9The locking member 40 includes a fixing part 41, a clamping part 42 and a gripping part 43. The fixing part 40 is connected to the housing 10. The clamping part 42 is hinged to the fixing part 41. The gripping part 43 is hinged to the clamping part 42. The gripping part 43 drives the clamping part 42 to press against or move away from the pressure bar 30.

[0056] For details, please continue reading. Figure 9 The gripping part 43 and the clamping part 42 are in their initial positions, at which point the pressure strip 30 is in a compressed state. When the gripping part 43 is pulled upward, the clamping part 42 moves along the rotation direction and gradually approaches the gripping part 43, thereby relieving the pressure applied to the pressure strip 30 and allowing the detector array 20 to be removed. Further, when the gripping part 43 is pushed downward, the clamping part 42 moves along the rotation direction and gradually moves away from the gripping part 43. When the clamping part 42 and the gripping part 43 return to their initial positions, the pressure strip 30 is compressed again, thus fixing the detector array 20. This method facilitates the fixing of the pressure strip 30, thereby improving the assembly efficiency of the detector array 20.

[0057] It should be noted that, Figure 9 R in the middle indicates the rotation direction of the clamping part 42.

[0058] In some embodiments, please refer to Figure 9 The clamping part 42 includes an adjusting arm 421, a pressing column 422, and a locking nut 423. The adjusting arm 421 is hinged to the fixing part 41. The pressing column 422 is used to press the pressing strip 30. The adjusting arm 421 has an adjusting groove 421a. The pressing column 422 passes through the adjusting groove 421a and can slide along the length of the adjusting groove 421a. The locking nut 423 is threadedly engaged with the pressing column 422 to lock or release the pressing column 422.

[0059] In other words, by changing the position of the clamping column 422 along the length of the adjusting groove 421a, the position of the clamping column 422 on the pressure strip 30 can be changed, thereby changing the point of force application of the clamping column 422 on the pressure strip 30. This not only allows for adaptation to detection arrays 20 of different sizes, but also adjusts the degree of clamping of the pressure strip 30, thereby improving the stability of the detection array 20. Alternatively, the area of ​​the pressure strip 30 can be reduced, thereby increasing the exposed area of ​​the detection array 20 and improving the detection performance of the detection device 100.

[0060] It should be noted that, Figure 9 L1 in the middle indicates the length direction of the adjusting groove 421a.

[0061] In some embodiments, please refer to Figure 8 The pressure strip 30 has protrusions 31 formed at both ends along its length, and the detection array 20 abuts against the protrusions 31 at both ends along the first direction. In this way, the protrusions 31 constrain the displacement of the detection array 20 in the first direction, such as the front-back direction, thereby enhancing the stability of the detection array 20.

[0062] It should be noted that, Figure 8 L2 in the middle indicates the length direction of the pressure strip 30.

[0063] In some embodiments, please refer to Figure 7 A buffer strip 50 is filled between the pressure strip 30 and the detection array 20. Thus, when the pressure transmitted by the clamping part 42 is too great, the elastic buffer strip 50 offsets part of the pressure, protecting the detection array 20. At the same time, the buffer strip 50 has frictional force, which further enhances the stability of the detection array 20.

[0064] In some embodiments, please refer to Figure 8 The detection device 100 includes a first limiting member 60, which is disposed on one side of the detection array 20 along a second direction. The first limiting member 60 is connected to the housing 10, and the detection array 20 abuts against the first limiting member 60. For an example, please refer to [reference needed]. Figure 5 and Figure 8 The first limiting member 60 is located on the right side of the base 81, and together with the first side plate 83 on the left side, it constrains the displacement of the detection array 20 in the second direction, such as the left and right direction, thereby enhancing the stability of the detection array 20.

[0065] In some embodiments, please refer to Figure 8 The first limiting member 60 includes a limiting plate 62 and a base plate 61. The base plate 61 is connected to the housing 10, and the limiting plate 62 is connected to the base plate 61 and abuts against one side of the detection array 20 along the second direction. The first limiting member 60 has a simple structure and is easy to manufacture.

[0066] For example, please continue reading Figure 8 Multiple reinforcing plates 63 are provided between the base plate 61 and the limiting plate 62 to enhance the stability of the first limiting member 60, thereby improving the stability of the detection array 20.

[0067] In some embodiments, please refer to Figure 5 The detection device 100 includes a second limiting member 70, and the detection array 20 abuts against the second limiting member 70 on one side along the first direction. For an example, please refer to [further details]. Figure 5 The second limiting member 70 is located in front of the base 81 and together with the first side plate 82 behind the base 81, it constrains the displacement of the detection array 20 in the front-back direction, thereby enhancing the stability of the detection array 20.

[0068] In some embodiments, please refer to Figure 1The housing 10 includes a bottom shell 11 and a cover 12, which are engaged to define a receiving cavity 10a. At least one of the bottom shell 11 and the cover 12 is provided with a seal 13 to seal the gap between the bottom shell 11 and the cover. For example, the contact area between the cover 12 and the bottom shell 11 is filled with the seal 13 to enhance the sealing between the cover 12 and the bottom shell 11 and reduce light leakage from the sensor 211.

[0069] In some embodiments, please refer to Figure 1 The cover and bottom shell 11 are rotatably connected on one side. The detection device 100 includes a telescopic member 14, which connects the housing 10 and the cover 12. The cover 12 has multiple preset positions in the rotation direction, and the telescopic member 14 allows the cover 12 to be held in any one of these preset positions. In this way, the cover 12 is fixed by the telescopic member 14, preventing the cover 12 from being locked due to disturbances during the installation and removal of the detection array 20, which could damage the detection array 20.

[0070] The type of telescopic component 14 is not limited; for example, it can be a gas spring, etc., which can effectively alleviate vibration and impact to protect the detection device 100. The method of rotational connection between the bottom shell 11 and the cover 12 is not limited; for example, it can be a hinge, etc., to improve the assembly efficiency of the detection device 100.

[0071] In the description of this specification, references to terms such as "some embodiments," "an embodiment," or "exemplary" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] The various embodiments / implementations provided in this application can be combined with each other without creating contradictions. The above descriptions are merely preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A detection device, characterized in that, include: The shell has a receiving cavity; Multiple optical guide detectors, each comprising a sensor and an optical fiber port disposed at one end of the sensor, are arranged along a first direction to form a first unit, with the optical fiber ports of the first unit all facing a second direction; the multiple optical guide detectors are arranged along a second direction to form a second unit, with the optical fiber ports of the second unit all facing the first direction; the first unit and the second unit are stacked along a third direction to form a detection array; the detection array is disposed within the receiving cavity, wherein the first direction, the second direction, and the third direction are perpendicular to each other; The detection device includes a pressure strip and a locking member. The pressure strip abuts against one side of the detection array along a third direction. Protrusions are formed at both ends of the pressure strip along its length direction. The two ends of the detection array along a first direction abut against the protrusions. The locking member is connected to the housing, and a portion of the locking member presses against the pressure strip. The locking element includes: The fixing part is connected to the housing; The clamping part is hinged to the fixing part. The clamping part includes an adjusting arm, a pressing column, and a locking nut. The adjusting arm is hinged to the fixing part. The pressing column is used to press the pressing strip. The adjusting arm forms an adjusting groove. The pressing column passes through the adjusting groove and can slide along the length direction of the adjusting groove. The locking nut is threadedly engaged with the pressing column to lock or release the pressing column. The gripping part is hinged to the clamping part, and the gripping part drives the clamping part to press against or move away from the pressure bar.

2. The detection device according to claim 1, characterized in that, The detection device includes a base disposed within the receiving cavity. The base includes a base plate, a first side plate, and a second side plate. The first side plate is disposed on one side of the base along a first direction, and the second side plate is disposed on one side of the base along a second direction, so as to jointly define a limiting space. The detection array is disposed within the limiting space. The portion of the first unit away from the optical fiber port abuts against the second side plate, and the portion of the second unit away from the optical fiber port abuts against the first side plate.

3. The detection device according to claim 2, characterized in that, A buffer strip is filled between the base and the detection array.

4. The detection device according to claim 1, characterized in that, A buffer strip is filled between the pressure strip and the detection array.

5. The detection device according to claim 1, characterized in that, The detection device includes a first limiting member, which is disposed on one side of the detection array along a second direction. The first limiting member is connected to the housing, and the detection array abuts against the first limiting member.

6. The detection device according to claim 5, characterized in that, The first limiting member includes a limiting plate and a base plate. The base plate is connected to the housing, and the limiting plate is connected to the base plate and abuts against one side of the detection array along the second direction.

7. The detection device according to claim 1, characterized in that, The detection device includes a second limiting member, and the detection array abuts against the second limiting member on one side along the first direction.

8. The detection device according to claim 1, characterized in that, The housing includes a bottom shell and a cover shell, which are fastened together to define the receiving cavity. At least one of the bottom shell and the cover shell is provided with a sealing element to seal the gap between the bottom shell and the cover shell.

9. The detection device according to claim 8, characterized in that, The cover and the bottom shell are rotatably connected on one side. The detection device includes a telescopic component that connects the housing and the cover. The cover has multiple preset positions in the rotation direction. The telescopic component allows the cover to be held in any one of the multiple preset positions.

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