Coupling structure of streak camera and non-disassembly transportation protection method

Abstract

The invention relates to the technical field of streak cameras, and provides a streak camera coupling structure and a non-disassembly transportation protection method, and the streak camera coupling structure comprises a positioning sleeve which sleeves a CMOS camera and is fixedly connected with the CMOS camera, and the outer wall of the positioning sleeve is of a spherical structure; the positioning seat is provided with a ball hole matched with the outer wall of the positioning sleeve; the first bracket is used for supporting and fixing the scanning image converter tube; the second bracket is used for supporting the image intensifier and is provided with a through hole matched with the outer wall of the image intensifier; the leveling seat is fixed behind the CMOS camera; the at least three elastic components are arranged on the leveling seat and can provide elastic thrust for the rear end of the CMOS camera, the end parts, close to the CMOS camera, of the elastic components form a positioning plane, and the positioning plane is perpendicular to the axis of the scanning image converter tube; and the plurality of axial tightening pieces are in threaded connection with the leveling seat so as to be propped against the rear end of the CMOS camera after the streak camera is coupled. According to the invention, the input surface of the CMOS camera can be automatically leveled, and lossless and undetachable transportation can be conveniently realized.

Description

Technical Field

[0001] The present invention relates to the technical field of streak cameras, and in particular to a streak camera coupling structure and a non-disassembly transportation protection method. Background Art

[0002] The streak camera is a very important measuring instrument in the field of ultrafast physics experimental research. When conducting certain experiments, the streak camera needs to be transported over long distances. The core components of the streak camera include scanning image converter, image intensifier and image recording component (i.e. CMOS camera). In order to make the streak camera have high spatial resolution and high response sensitivity, the output surface of the scanning image converter fluorescent screen and the input surface of the image intensifier, as well as the output surface of the image intensifier and the input surface of the CMOS camera need to be tightly coupled. The commonly used coupling method is usually to couple the two by screw fixing. This coupling method will cause damage to the contact surface of each device during long-distance transportation. Therefore, before the experiment, the CMOS camera needs to be completely disassembled and transported, and then coupled and assembled during the experiment. This method is time-consuming and labor-intensive, and there are also problems such as low reset accuracy and unequal coupling surfaces, which will seriously affect the camera performance. Summary of the invention

[0003] One of the purposes of the present invention is to provide a streak camera coupling structure to solve the defects of uneven coupling surface and the need to disassemble for transportation.

[0004] The present invention is achieved through the following technical solutions:

[0005] A streak camera coupling structure, comprising:

[0006] A positioning sleeve is mounted on the CMOS camera and fixedly connected thereto, and the outer wall of the positioning sleeve is a spherical structure;

[0007] A fixed positioning seat, the positioning seat is provided with a ball hole, and the ball hole cooperates with the outer wall of the positioning sleeve;

[0008] A fixed first bracket, used for supporting and fixing the scanning image converter tube;

[0009] A fixed second bracket is used to support the image intensifier, and the second bracket is provided with a through hole that can cooperate with the outer wall of the image intensifier;

[0010] Leveling seat, fixed behind the CMOS camera;

[0011] At least three elastic components are arranged on the leveling seat, the elastic components can provide elastic thrust for the rear end of the CMOS camera, and the ends of all the elastic components close to the CMOS camera form a positioning plane, and the positioning plane is perpendicular to the axis of the scanning image converter tube; and

[0012] A plurality of axial pressing parts are connected to the leveling seat through threads so as to press against the rear end of the CMOS camera after the various components are coupled.

[0013] Optionally, a circumferential positioning component is also included to limit the circumferential rotation of the CMOS camera.

[0014] Optionally, the circumferential positioning component includes a mounting plate, a limit plate and a limit column, the mounting plate is fixedly connected to one side of the CMOS camera, the limit plate is slidably set on the mounting plate, the limit column is fixedly set on the second bracket, and one end of the limit plate close to the limit column is provided with a slot that can cooperate with the limit column. When the limit plate slides to the slot and cooperates with the limit column, the CMOS camera can be limited from circumferential rotation.

[0015] Optionally, the circumferential positioning component also includes a locking piece, which passes through the limiting plate and is connected to the mounting plate by a thread to lock or loosen the limiting plate. A waist-shaped groove is provided on the limiting plate to avoid the locking piece when sliding.

[0016] Optionally, the elastic component is a spring plunger.

[0017] Optionally, the axial tightening member is a screw.

[0018] A second object of the present invention is to provide a method for protecting a streak camera during transportation without disassembly, so as to avoid damaging the coupling surfaces of various components during transportation without disassembly. The streak camera adopts any of the streak camera coupling structures described above, and comprises the following steps:

[0019] S1. Twist the axial tightening piece away from the CMOS camera.

[0020] S2. Slide the CMOS camera and the image intensifier backwards to leave a gap between the CMOS camera and the image intensifier, and between the image intensifier and the scanning image converter;

[0021] S3. Insert a flexible protective member into the gap between the CMOS camera and the image intensifier, and into the gap between the image intensifier and the scanning image converter, and tighten the axial tightening member to tighten the flexible protective member.

[0022] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0023] 1. In the present invention, the ball hole of the positioning seat cooperates with the spherical structure of the outer wall of the positioning sleeve, so that the positioning sleeve can rotate in any direction. Since the positioning sleeve is fixedly connected to the CMOS camera, the CMOS camera can rotate in the ball hole, and the elastic component provided together forms a positioning plane perpendicular to the axis of the scanning image converter tube. The elastic component provides elastic thrust for the rear end of the CMOS camera to ensure that the CMOS camera can be leveled, that is, to ensure that the input surface of the CMOS camera can be perpendicular to the axis of the other two devices without tilting.

[0024] 2. The scanning image converter is supported and fixed by the first bracket, the image intensifier is supported by the second bracket, the CMOS camera is supported by the positioning seat, and the elastic component makes the CMOS camera fit with the image intensifier, and the image intensifier fits with the scanning image converter. Then, the axial tightening piece is tightened to the rear end of the CMOS camera to complete the coupling. With such an arrangement, there is no need to disassemble each device during transportation. It is only necessary to screw out the axial tightening piece for a certain distance, and then move the CMOS camera and the image intensifier to leave a gap between the CMOS camera and the image intensifier, and between the image intensifier and the scanning image converter. Then, the gap is filled with protective materials, so that the streak camera can be transported without loss or disassembly, and re-coupling before subsequent experiments is also convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A structural schematic diagram of a streak camera coupling structure provided by the present invention (coupling state);

[0027] Figure 2 for Figure 1 A magnified image of point A;

[0028] Figure 3 for Figure 1 A magnified view of point B;

[0029] Figure 4 A schematic diagram of the connection relationship between the positioning sleeve and the CMOS camera;

[0030] Figure 5 A schematic diagram of a streak camera coupling structure provided by the present invention (uncoupled state);

[0031] Figure 6 A transport state of a streak camera coupling structure provided by the present invention;

[0032] Icons: 1-positioning sleeve, 2-positioning seat, 3-first bracket, 4-second bracket, 5-leveling seat, 6-elastic component, 7-axial tightening member, 8-mounting plate, 9-limiting plate, 10-limiting column, 11-locking member, 12-flexible protective member, 13-CMOS camera, 14-image intensifier, 15-scanning image converter, 16-base plate. DETAILED DESCRIPTION

[0033] Example 1

[0034] refer to Figure 1 A streak camera coupling structure includes a positioning sleeve 1, a positioning seat 2, a first bracket 3, a second bracket 4, a leveling seat 5, at least three elastic components 6 and a plurality of axial tightening members 7. In practical applications, the positioning seat 2, the first bracket 3, the second bracket 4 and the leveling seat 5 are fixedly connected to a bottom plate 16 to form a whole with the bottom plate 16 for easy transportation.

[0035] The first bracket 3 is used to support and fix the scanning image converter 15. The supporting and fixing method of the scanning image converter 15 is not limited, for example, a clamp is used. The second bracket 4 is used to support the image intensifier 14. The second bracket 4 is provided with a through hole that can cooperate with the outer wall of the image intensifier 14. It is easy to understand that the image intensifier 14 can move in the through hole along the axial direction of the through hole.

[0036] The positioning sleeve 1 is sleeved on the CMOS camera 13 and fixedly connected thereto, for example, the end faces of the CMOS camera 13 and the positioning sleeve 1 are connected respectively by a connector to realize the fixed connection between the positioning sleeve 1 and the CMOS camera 13. The outer wall of the positioning sleeve 1 is a spherical structure, and the positioning seat 2 is provided with a ball hole, which cooperates with the outer wall of the positioning sleeve 1 so that the positioning sleeve 1 can rotate in any direction. Since the positioning sleeve 1 is fixedly connected to the CMOS camera 13, the CMOS camera 13 can rotate in any direction in the ball hole.

[0037] The leveling seat 5 is fixedly arranged at the rear of the CMOS camera 13, and the elastic component 6 and the axial pressing member 7 are both arranged on the leveling seat 5. The elastic component 6 can provide elastic thrust for the rear end of the CMOS camera 13, and the ends of all the elastic components 6 close to the CMOS camera 13 form a positioning plane, and the positioning plane is perpendicular to the axis of the scanning image converter 15. It is worth noting that since three points can determine a plane, in actual applications, the number of elastic components 6 is preferably three, and too many elastic components are not easy to ensure the position accuracy of each elastic component 6. As an option, the elastic component 6 in this embodiment is a spring plunger, and in other embodiments, it can also be other structures that can provide elastic thrust for the rear end of the CMOS camera 13.

[0038] The axial pressing member 7 is connected to the leveling seat 5 by threads, and after the components are coupled, they press against the rear end of the CMOS camera 13 to limit the axial position of the CMOS camera 13 and the image intensifier 14. As an option, the axial pressing member 7 in this embodiment is a screw.

[0039] During coupling, the CMOS camera 13 can rotate in any direction of the ball hole, and cooperate with the elastic component 6 to form a positioning plane perpendicular to the axis of the scanning image converter tube 15. The elastic component 6 provides elastic thrust for the rear end of the CMOS camera 13 to ensure that the CMOS camera 13 can be leveled, that is, to ensure that the input surface of the CMOS camera 13 is perpendicular to the axis of the other two devices without tilting.

[0040] Moreover, the scanning image converter 15 is supported and fixed by the first bracket 3, the image intensifier 14 is supported by the second bracket 4, the CMOS camera 13 is supported by the positioning seat 2, and the elastic component 6 makes the CMOS camera 13 fit with the image intensifier 14, and the image intensifier 14 fits with the scanning image converter 15, and then the axial pressing member 7 is pressed against the rear end of the CMOS camera 13 to complete the coupling. With such an arrangement, there is no need to disassemble each device during transportation. It is only necessary to screw the axial pressing member 7 a certain distance, and then move the CMOS camera 13 and the image intensifier 14 to leave a gap between the CMOS camera 13 and the image intensifier 14, and between the image intensifier 14 and the scanning image converter 15, and then fill the gap with protective materials, so as to realize the non-destructive and non-disassembly transportation of the streak camera, and it is also convenient and quick to re-couple before subsequent experiments.

[0041] Since the CMOS camera 13 is elastically coupled before the axial pressing member 7 presses against the CMOS camera 13, the CMOS camera 13 can still rotate. Therefore, the coupling structure also includes a circumferential positioning component for limiting the circumferential rotation of the CMOS camera 13. In this way, combined with the above content, the coupling orientation of the CMOS camera 13 is unique and the resetting accuracy is high.

[0042] As an option, the circumferential positioning component of this embodiment includes a mounting plate 8, a limiting plate 9 and a limiting column 10. The mounting plate 8 is fixedly connected to one side of the CMOS camera 13, and the limiting plate 9 is slidably arranged on the mounting plate 8. The sliding arrangement is not limited. For example, a slide groove is provided on the mounting plate 8, and the limiting plate 9 is embedded in the slide groove. The limiting column 10 is fixedly arranged on the second bracket 4. The end of the limiting plate 9 close to the limiting column 10 is provided with a slot that can cooperate with the limiting column 10. After the various devices are coupled, the limiting plate 9 is slid toward the limiting column 10, so that the slot of the limiting plate 9 cooperates with the limiting column 10 (i.e., the slot and the column limit column 10), so that the CMOS camera 13 can be limited from rotating in the circumferential direction.

[0043] Furthermore, the circumferential positioning component of this embodiment also includes a locking member 11, which passes through the limiting plate 9 and is connected to the mounting plate 8 by threads to lock or loosen the limiting plate 9. The limiting plate 9 is provided with a waist-shaped groove to avoid the locking member 11 when sliding. Such a setting is convenient for fixing the position of the limiting plate 9 to avoid displacement during transportation, and the set locking member 11 does not need to be completely disassembled, and only needs to be loosened to slide the limiting plate 9. As an option, the locking member 11 of this embodiment is a screw.

[0044] In other embodiments, the circumferential limiting component may also have other structures, as long as it can limit the circumferential rotation of the CMOS camera 13. For example, the CMOS camera 13 is connected to the second bracket 4 (or other fixing member) through a connector after coupling, or a baffle is connected to the bottom plate 16, and the baffle is in close contact with one side of the CMOS camera 13.

[0045] Example 2

[0046] This embodiment provides a method for protecting a streak camera during transportation without disassembly, so as to avoid damaging the coupling surfaces of various components while achieving transportation without disassembly. The streak camera adopts the streak camera coupling structure provided in Embodiment 1, and includes the following steps:

[0047] S1, twist the axial tightening member 7 to keep it away from the CMOS camera 13, so that the CMOS camera 13 and the image intensifier 14 can move;

[0048] S2, slide the CMOS camera 13 and the image intensifier 14 backwards to leave a gap between the CMOS camera 13 and the image intensifier 14, and between the image intensifier 14 and the scanning image converter 15;

[0049] S3, insert the flexible protective member 12 into the gap between the CMOS camera 13 and the image intensifier 14, and the gap between the image intensifier 14 and the scanning image converter 15, and twist the axial pressing member 7 to tighten the flexible protective member 12 to prevent the flexible protective member 12 from falling off. The specific form of the flexible protective member 12 is not specifically limited, as long as it can provide a buffer and avoid damaging the input (or output surface) of each device. For example, the flexible protective member 12 in this embodiment is selected from soft rubber, and other embodiments can be selected from silicone, rubber, sponge, etc.

[0050] Before subsequent experiments, it is only necessary to remove the flexible protective member 12. Under the action of the elastic member 6, each device is automatically pressed together, and then the CMOS camera 13 is pressed together by the axial pressing member 7. Finally, the circumferential movement of the CMOS camera 13 is limited by the circumferential positioning member, so that each device can be recoupled and fixed in position.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A streak camera coupling structure, characterized in that: include: A positioning sleeve is mounted on the CMOS camera and fixedly connected thereto, and the outer wall of the positioning sleeve is a spherical structure; A fixed positioning seat, the positioning seat is provided with a ball hole, and the ball hole cooperates with the outer wall of the positioning sleeve; A fixed first bracket, used for supporting and fixing the scanning image converter tube; A fixed second bracket is used to support the image intensifier, and the second bracket is provided with a through hole that can cooperate with the outer wall of the image intensifier; Leveling seat, fixed behind the CMOS camera; At least three elastic components are arranged on the leveling seat, the elastic components can provide elastic thrust for the rear end of the CMOS camera, and the ends of all the elastic components close to the CMOS camera form a positioning plane, and the positioning plane is perpendicular to the axis of the scanning image converter tube; and A plurality of axial pressing parts are connected to the leveling seat through threads so as to press against the rear end of the CMOS camera after the various components are coupled.

2. The streak camera coupling structure according to claim 1, characterized in that: It also includes a circumferential positioning component for limiting the circumferential rotation of the CMOS camera.

3. The streak camera coupling structure according to claim 2, characterized in that: The circumferential positioning component includes a mounting plate, a limit plate and a limit column. The mounting plate is fixedly connected to one side of the CMOS camera, the limit plate is slidably arranged on the mounting plate, the limit column is fixedly arranged on the second bracket, and one end of the limit plate close to the limit column is provided with a slot that can cooperate with the limit column. When the limit plate slides to the slot and cooperates with the limit column, the CMOS camera can be limited from circumferential rotation.

4. The streak camera coupling structure according to claim 3, characterized in that: The circumferential positioning component also includes a locking piece, which passes through the limiting plate and is connected to the mounting plate through threads to lock or loosen the limiting plate. A waist-shaped groove is provided on the limiting plate to avoid the locking piece when sliding.

5. The streak camera coupling structure according to any one of claims 1 to 4, characterized in that: The elastic component is a spring plunger.

6. The streak camera coupling structure according to any one of claims 1 to 4, characterized in that: The axial tightening member is a screw.

7. A method for protecting a streak camera during transportation without disassembly, wherein the streak camera adopts the streak camera coupling structure according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Twist the axial tightening piece away from the CMOS camera. S2. Slide the CMOS camera and the image intensifier backwards to leave a gap between the CMOS camera and the image intensifier, and between the image intensifier and the scanning image converter; S3. Insert a flexible protective member into the gap between the CMOS camera and the image intensifier, and into the gap between the image intensifier and the scanning image converter, and tighten the axial tightening member to tighten the flexible protective member.

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