A four-degree-of-freedom coupled stripe camera readout system and method of use

Abstract

The application belongs to a kind of fringe camera readout system, aiming at the technical problems that the direction adjustment of current fringe camera readout system is difficult to quickly locate the area with the best imaging quality, and lacks the adjustment margin of other directions except axial adjustment, provides a four-degree-of-freedom coupled fringe camera readout system and use method, including image readout unit, axial movement base body, rotating base body and rotating ring, first connecting structure, second connecting structure and third connecting structure are adjustable connecting structure, the first connecting structure is used to adjust the position of image readout unit in X direction relative to first adjusting seat, the second connecting structure is used to adjust the position of first adjusting seat in Z direction relative to second adjusting seat, and the third connecting structure is used to adjust the position of axial movement base body in Y direction relative to rotating base body.The application can realize four-degree-of-freedom adjustment, greatly improve the test efficiency, reduce the test time and processing cost.

Description

A four-degree-of-freedom coupled streak camera readout system and its usage method Technical Field

[0001] This application pertains to a stripe camera readout system, specifically a four-degree-of-freedom coupled stripe camera readout system and its usage method. Background Technology

[0002] A streak camera is an ultra-high-speed photoelectric detection device capable of recording changes in light signals over time with extremely high temporal resolution. It converts changes in light intensity over time into spatial distribution, thereby enabling the capture and analysis of transient optical phenomena. Under different operating conditions, streak cameras require adjustments to the horizontal, vertical, and rotational angles of the readout system relative to the image intensifier screen to select the area with the best image quality.

[0003] Current readout systems typically achieve axial adjustment (both horizontal and vertical) by repeatedly trimming the connection structure or adding shims, which is time-consuming and carries the risk of light leakage. Furthermore, there is a lack of adjustment margin in other directions, making it difficult to quickly locate the area with the best image quality. Summary of the Invention

[0004] This application addresses the technical problems of current streak camera readout systems, such as difficulty in quickly locating the area with the best image quality and the lack of adjustment margin in directions other than axial adjustment, by providing a four-degree-of-freedom coupled streak camera readout system and its usage method.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] In a first aspect, this application proposes a four-degree-of-freedom coupled stripe camera readout system, including an image readout unit; and further including: an axially moving base, a rotating base, and a rotating ring;

[0007] The four degrees of freedom include the three directions corresponding to the three number axes in the three-dimensional rectangular coordinate system, as well as the rotation direction around the Y-axis, and the direction of the stripe image unfolding is defined as the X-direction, and the direction perpendicular to the stripe image unfolding direction is defined as the Y-direction;

[0008] The image readout unit is mounted on the first adjustment seat via a first connecting structure, and the first adjustment seat is mounted on the second adjustment seat via a second connecting structure; the second adjustment seat and the rotating base are detachably connected; the rotating ring and the rotating base are axially connected to form a rotating body; the axially movable base is sleeved inside the rotating body, and the axially movable base is coaxially sleeved outside the coupling lens; the axially movable base and the rotating base are connected via a third connecting structure.

[0009] The first connection structure, the second connection structure, and the third connection structure are all adjustable connection structures. The first connection structure is used to adjust the position of the image readout unit relative to the first adjustment seat in the X direction. The second connection structure is used to adjust the position of the first adjustment seat relative to the second adjustment seat in the Z direction. The third connection structure is used to adjust the position of the axially moving base relative to the rotating base in the Y direction.

[0010] Furthermore, the first connection structure and the second connection structure have the same structure;

[0011] The first connecting structure includes a straight groove and a first connecting member;

[0012] The straight groove is formed on the first adjustment seat, and the image reading unit is connected to the first adjustment seat through the first connector, with the first connector located inside the straight groove.

[0013] Furthermore, the third connecting structure includes an oblong hole and a clamping member;

[0014] The waist-shaped hole is formed on the side wall of the rotating base, and the clamping member abuts against the side wall of the axially moving base, and the clamping member is located inside the waist-shaped hole.

[0015] Furthermore, the first adjustment seat is a plate-shaped structure, and the first adjustment seat is located on one side of the image readout unit.

[0016] Furthermore, the second adjustment seat is a plate-like structure, and the second adjustment seat is perpendicular to the first adjustment seat.

[0017] Furthermore, the second adjusting seat and the rotating base are threadedly connected.

[0018] Furthermore, the axially moving base is threadedly engaged with the rotating body.

[0019] Furthermore, the axially moving base, rotating ring, rotating base, second adjusting seat, and image reading unit are coaxially arranged.

[0020] Furthermore, the first connection structure, the second connection structure, and the third connection structure are all provided in multiple forms.

[0021] Secondly, this application proposes a method for using the aforementioned four-degree-of-freedom coupled streak camera readout system, comprising:

[0022] The position of the first adjustment seat relative to the second adjustment seat in the Z direction is adjusted by the second connection structure, so that the coupling lens and the image readout unit are focused and the second connection structure is locked.

[0023] The position of the image readout unit relative to the first adjustment seat in the X direction is adjusted by the first connection structure so that the stripes fall completely into the field of view and the first connection structure is locked.

[0024] The position of the axially moving base relative to the rotating base in the Y direction is adjusted by the third connecting structure to center the image. Then, the rotating ring is rotated to the preset position and the third connecting structure is locked.

[0025] Compared with the prior art, this application has the following beneficial effects:

[0026] This application proposes a four-degree-of-freedom coupled stripe camera readout system, including an image readout unit, an axially moving base, a rotating base, and a rotating ring. The first, second, and third connecting structures, serving as connectors, are all adjustable. The first connecting structure adjusts the position of the image readout unit relative to a first adjusting seat in the X direction; the second connecting structure adjusts the position of the first adjusting seat relative to a second adjusting seat in the Z direction; and the third connecting structure adjusts the position of the axially moving base relative to the rotating base in the Y direction. The mounting structure of this application involves a small number of components and is simple and convenient to install. Through the ingenious design of the mounting structure and the mutual cooperation between the components, four-degree-of-freedom adjustment can be achieved, greatly improving testing efficiency and reducing testing time and manufacturing costs.

[0027] This application also proposes a method for using the above-mentioned four-degree-of-freedom coupled streak camera readout system, which possesses all the advantages of the above-mentioned four-degree-of-freedom coupled streak camera readout system. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 is a schematic diagram of a four-degree-of-freedom coupled stripe camera readout system according to this application;

[0030] Figure 2 is a schematic diagram of a first connection structure in an embodiment of this application;

[0031] Figure 3 is a schematic diagram of a second connection structure in an embodiment of this application;

[0032] Figure 4 is a schematic diagram of the rotating base and the second adjustment seat in an embodiment of this application;

[0033] Figure 5 is a cross-sectional view AA of Figure 4;

[0034] Figure 6 is a schematic diagram of a connection between the axially moving base, the rotating ring, and the rotating base in an embodiment of this application;

[0035] Figure 7 is a schematic diagram of a third connection structure in an embodiment of this application.

[0036] Wherein: 1-axial moving base, 2-rotating ring, 3-rotating base, 4-first adjusting seat, 5-second adjusting seat, 6-image reading unit, 7-first connecting structure, 71-straight groove, 72-first connecting piece, 8-third connecting structure, 81-waist-shaped hole, 82-tightening piece. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0042] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] A streak camera is a high-end scientific instrument possessing both ultra-high temporal resolution (femtosecond to picosecond level) and high spatial resolution (micrometer level). It can be used to measure ultrafast luminescence processes, directly acquiring the time-intensity-spatial information of the target. It can also serve as a high spatiotemporal resolution recording device, forming a joint diagnostic system with other instruments or diagnostic systems (such as femtosecond lasers, spectrometers, arbitrary reflector velocity interferometers, Thomson scattering diagnostic systems, etc.) to diagnose parameters such as spectrum, time, intensity, plasma temperature, density, and shock wave velocity in ultrafast physical evolution processes. A streak camera typically consists of a front-end input slit optical system, a streak image converter tube, an image intensifier, a power module, an industrial control system, a scanning module, a back-end optical coupling system, and a readout camera. Ultrafast signals pass through the front-end input slit optical system, streak image converter tube, and image intensifier, ultimately being imaged onto the fluorescent screen of the image intensifier. In practical applications, an image acquisition system is also required. The coupling methods between the image acquisition system and the fluorescent screen of the image intensifier typically include lens coupling and optical cone coupling. Lens coupling is widely used due to its advantages such as low cost, ease of use, and resistance to damage.

[0044] Image intensifiers typically use fluorescent screens with diameters of 18mm, 25mm, and 40mm. The target surface of the readout camera is generally square or rectangular. The readout system in the readout camera needs to be axially moved to align the target surface within the fluorescent screen. Furthermore, since streak cameras are precision instruments, different operating environments can affect image quality. Therefore, under different operating conditions, it is necessary to adjust the readout system's three degrees of freedom relative to the fluorescent screen: horizontal, vertical, and rotational angles. Selecting the area with the best image quality allows the readout system to clearly read the ultrafast signal from the fluorescent screen, aiding in subsequent physical signal analysis. Specifically, when the readout system needs to be moved in a certain direction, if the connecting structure is too long, the excess portion needs to be trimmed; if the connecting structure is too short, shims of different thicknesses are used to raise or translate the readout system, thereby achieving horizontal or vertical position calibration. This method essentially adjusts the relative position by changing the physical dimensions of the connecting structure, which to a certain extent meets basic adjustment needs and has become the main solution in situations where dedicated adjustment mechanisms are lacking.

[0045] However, this adjustment method, which relies on trimming the connection structure or adding shims, has significant drawbacks and cannot solve all problems. First, the adjustment process requires repeated disassembly, trimming / adding shims, reinstallation, and testing of the imaging effect. Often, multiple attempts are needed to achieve a roughly ideal position, making the entire process time-consuming and laborious, significantly impacting the efficiency of experiments or tests. Second, repeated disassembly of the connection structure can damage the original seal of the connection points, easily leading to light leakage inside the equipment. Light leakage interferes with the capture of transient optical signals, causing increased imaging noise and signal distortion, directly affecting the accuracy of the data. More importantly, this adjustment method is a one-time adjustment. Once shims are trimmed or added, any subsequent fine-tuning or directional adjustments require complete disassembly and modification, resulting in extremely poor flexibility. In addition to axial adjustment in the horizontal and vertical directions, the rotation angle adjustment of the readout system also lacks effective adjustment margin, making it impossible to perform precise calibration using existing methods. This results in difficulties in quickly and accurately locating the optimal imaging area even after axial position adjustment is completed due to angle deviation, ultimately affecting the user experience and data reliability of the streak camera. These issues have become key bottlenecks restricting the efficiency and accuracy of streak camera imaging quality calibration.

[0046] Based on the above, this application proposes a four-degree-of-freedom coupled streak camera readout system and its usage method. The following detailed description, in conjunction with embodiments and accompanying drawings, further illustrates this application.

[0047] As a basic embodiment of the four-degree-of-freedom coupled stripe camera readout system of this application, it may include an image readout unit 6, an axially moving base 1, a rotating base 3, and a rotating ring 2.

[0048] For ease of accurate description, the directions of the four degrees of freedom are defined as follows: The four degrees of freedom include the three directions corresponding to the three number axes in the three-dimensional Cartesian coordinate system, namely the X direction, Y direction and Z direction, as well as the rotation direction around the Y axis. The direction of the stripe image unfolding is defined as the X direction, and the direction perpendicular to the direction of the stripe image unfolding is defined as the Y direction.

[0049] The image readout unit 6 is mounted on the first adjustment seat 4 via the first connecting structure 7. The first adjustment seat 4 is mounted on the second adjustment seat 5 via the second connecting structure. The second adjustment seat 5 and the rotating base 3 are detachably connected. The rotating ring 2 and the rotating base 3 are axially connected to form a rotating body. The axially movable base 1 is sleeved within the rotating body and coaxially sleeved outside the coupling lens. The axially movable base 1 and the rotating base 3 are connected via the third connecting structure 8. The first connecting structure 7, the second connecting structure, and the third connecting structure 8 are all adjustable connecting structures. The first connecting structure 7 is used to adjust the position of the image readout unit 6 relative to the first adjustment seat 4 in the X direction. The second connecting structure is used to adjust the position of the first adjustment seat 4 relative to the second adjustment seat 5 in the Z direction. The third connecting structure 8 is used to adjust the position of the axially movable base 1 relative to the rotating base 3 in the Y direction.

[0050] The image readout unit 6, as the core of stripe image acquisition, converts the spatially distributed light signal on the fluorescent screen of the image intensifier into an electrical signal, providing raw image data for subsequent data processing. The coupling lens accurately transmits the stripe image on the fluorescent screen of the image intensifier to the image readout unit 6, ensuring efficient transmission of optical signals. The rotating base 3 and the rotating ring 2 are axially fixed to form a complete rotating body, providing the entire readout system with rotational freedom around the Y-axis and serving as the core load-bearing structure for angle adjustment. The axially movable base 1 is a hollow sleeve, coaxially fitted outside the coupling lens, serving both to fix the coupling lens and to move along the Y-direction, enabling positional calibration of the coupling lens and the image readout unit 6 perpendicular to the stripe image unfolding direction. The first adjustment seat 4 and the second adjustment seat 5 serve as the mounting and adjustment carriers for the image readout unit 6, achieving displacement adjustment in the X and Z directions through hierarchical connections, while simultaneously providing stable support for the rotating base 3.

[0051] In practical applications, the image readout unit 6 is fixed to the preset mounting surface of the first adjustment seat 4 via the first connecting structure 7, ensuring a stable connection and allowing movement along the X direction. The first adjustment seat 4 is assembled with the second adjustment seat 5 via the second connecting structure, forming an adjustment pair that can move relative to each other along the Z direction. The second adjustment seat 5 is fixed to the rotating base 3 via detachable connections such as bolts and clips, facilitating future maintenance and component replacement. The rotating ring 2 is connected to the rotating base 3 via axial connections such as threaded connections and pin fixation, forming a rotating body without relative displacement. The axially moving base 1 is nested inside the rotating body. The inner wall of the axially moving base 1 fits against the outer wall of the coupling lens with a reserved sliding gap. The outer wall of the axially moving base 1 is connected to the rotating base 3 via the third connecting structure 8, enabling controllable movement in the Y direction.

[0052] It should be noted that adjustments in the X direction can be made using scale markings or laser rangefinders for positioning. After moving to the target position, the image is locked in place, ensuring precise alignment of the striped image in the unfolding direction and guaranteeing complete capture of all transient light signals. Adjustments in the Z direction allow for focal length calibration between the image readout unit 6 and the coupling lens, ensuring the striped image is clearly imaged on the photosensitive surface of the image readout unit 6, thus improving image resolution. Adjustments in the Y direction ensure the striped image is centered in the vertical unfolding direction, preventing signal loss caused by image edge cropping or offset. Adjustments to the rotation angle allow the image readout unit 6, the coupling lens, and the axially moving base 1 to rotate as a whole around the Y-axis until the striped image is parallel to the pixel array of the image readout unit 6. After tilt correction, the image is locked in place, ensuring accurate image sampling.

[0053] When using this application, there is no need to disassemble the connecting structure or add shims during adjustment. Precise positioning can be achieved through simple operations of loosening, adjusting, and locking, significantly reducing time costs. Furthermore, all four degrees of freedom have ample adjustment margins, adaptable to position offset correction in different usage environments, and quickly locate the optimal imaging area. All connecting structures in this application employ rigid connections and precision adjustment designs, ensuring a secure lock after adjustment and preventing position offset caused by vibration during use. In addition, the detachable connections between structural components facilitate later maintenance, component replacement, and upgrades, improving overall versatility and service life.

[0054] It should also be noted that, based on the above basic embodiment, the materials of each structural component can be adjusted according to actual usage requirements. For example, a hard aluminum alloy design can be used throughout, which is lightweight and has a small number of structural components, making installation simple and convenient.

[0055] The following embodiments further illustrate the structural components and specific connection methods in this application. Figure 1 shows a schematic diagram of a four-degree-of-freedom coupled stripe camera readout system.

[0056] Figure 2 shows a schematic diagram of a first connecting structure in an embodiment of this application. Figure 3 shows a schematic diagram of a second connecting structure in an embodiment of this application. In some embodiments of this application, the first connecting structure 7 and the second connecting structure have the same structure. The first connecting structure 7 will be described in detail as an example. The first connecting structure 7 includes a straight groove 71 and a first connecting member 72. The straight groove 71 is formed on the first adjusting seat 4. The image reading unit 6 is connected to the first adjusting seat 4 through the first connecting member 72, and the first connecting member 72 is located within the straight groove 71. Taking a screw as an example, for the first connecting structure 7, the screw portion of the first connecting member 72 passes through the mounting hole of the image reading unit 6 and is embedded in the straight groove 71. Locking is achieved by pressing with the screw head. The straight groove 71 extends strictly along the X direction, providing guidance for X-direction displacement adjustment. For the second connecting structure, the straight groove extends strictly along the Z direction, providing guidance for Z-direction displacement adjustment. The unified design of the first connecting structure 7 and the second connecting structure simplifies the processing and assembly process.

[0057] Figure 7 shows a schematic diagram of a third connecting structure in an embodiment of this application. In some embodiments of this application, the third connecting structure 8 includes an oblong hole 81 and a clamping member 82. The oblong hole 81 is formed on the side wall of the rotating base 3, and the clamping member 82 abuts against the side wall of the axially movable base 1, with the clamping member 82 located inside the oblong hole 81. After passing through the oblong hole 81, the clamping member 82 abuts against the side wall of the axially movable base 1, and the clamping force achieves relative fixation between the axially movable base 1 and the rotating base 3. When adjusting the displacement in the Y direction, the clamping member 82 is first released, thus releasing the clamping member 82 from pressing and fixing the axially movable base 1. At this time, the axially movable base 1 can drive the coupling lens to slide freely in the Y direction. The oblong hole 81 provides the clamping member 82 with movement space and limits the adjustment trajectory, avoiding directional deviation during the adjustment process. After moving to the target position, tighten the clamping member 82 again, so that it presses against the side wall of the axially moving base 1. The relative position of the two is locked by friction, thus completing the precise adjustment of the Y-direction displacement. This ensures both the flexibility of the Y-direction adjustment and the reliable fixation through the locking action of the clamping member 82.

[0058] Figure 2 shows a schematic diagram of the first connecting structure 7 in one embodiment of this application. In some embodiments of this application, the first adjusting seat 4 adopts a plate-like structure design, which fits against one side of the image reading unit 6 during installation. This provides a stable support for the image reading unit 6 and ensures the installation accuracy of the first connecting structure 7 through the flatness of its plate-like structure, thus ensuring the smoothness of the X-direction adjustment. The second adjusting seat 5 is also a plate-like structure and is arranged perpendicularly to the first adjusting seat 4. This perpendicular design makes the Z-direction adjustment trajectory of the first adjusting seat 4 spatially perpendicular to the X-direction adjustment trajectory of the first adjusting seat 4. This not only makes reasonable use of the installation space and avoids component interference, but also ensures the structural stability of the two adjusting seats after connection through the rigidity of the plate-like structure, further improving the accuracy and reliability of the X-direction and Z-direction displacement adjustment.

[0059] Figure 4 shows a schematic diagram of the rotating base and the second adjusting seat in an embodiment of this application. Figure 5 shows a cross-sectional view AA of Figure 4. Figure 6 shows a schematic diagram of a connection between the axially moving base, the rotating ring, and the rotating base in an embodiment of this application. In some embodiments of this application, the second adjusting seat 5 and the rotating base 3 are threadedly connected, and the axially moving base 1 is threadedly engaged with the rotating body. Furthermore, the axially moving base 1, the rotating ring 2, the rotating base 3, the second adjusting seat 5, and the image readout unit 6 are coaxially arranged. This coaxial layout ensures that the center reference of each structural component is unified, avoiding optical signal transmission deviations caused by installation offsets, allowing the fringe image transmitted by the coupling lens to accurately align with the photosensitive center of the image readout unit 6, improving imaging consistency. It also ensures that when adjusting around the Y-axis, each structural component rotates around the same axis, ensuring that the relative position of the image readout unit 6 and the coupling lens remains unchanged during rotation, avoiding imaging offsets caused by angle adjustments. Simultaneously, it further optimizes the spatial layout and reduces the risk of interference.

[0060] It should be noted that, to improve stability, multiple first connection structures 7, second connection structures, and third connection structures 8 can be provided. The specific number can be determined based on the actual situation.

[0061] This application addresses the problem that existing readout systems still require secondary processing of the fixed structure after testing. It proposes a four-degree-of-freedom coupled streak camera readout system for rapid adjustment and fixation of the optical coupling. This system is characterized by its compact structure, economical cost, and convenient adjustment. Furthermore, the four-dimensional adjustment freedom significantly improves testing efficiency and reduces time and processing costs.

[0062] Corresponding to the above structure, this application also proposes a method for using a four-degree-of-freedom coupled streak camera readout system, which may include:

[0063] (1) Adjust the position of the first adjustment seat 4 relative to the second adjustment seat 5 in the Z direction through the second connection structure so that the coupling lens and the image readout unit 6 are focused and the second connection structure is locked.

[0064] (2) Adjust the position of the image reading unit 6 relative to the first adjustment seat 4 in the X direction through the first connecting structure 7 so that the stripes fall completely into the field of view and lock the first connecting structure 7;

[0065] (3) Adjust the position of the axially moving base 1 relative to the rotating base 3 in the Y direction through the third connecting structure 8 to center the image, then rotate the rotating ring 2 to the preset position and lock the third connecting structure 8.

[0066] The usage method has been explained in detail above, and will not be repeated here.

[0067] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. 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 four-degree-of-freedom coupled stripe camera readout system, comprising an image readout unit (6); characterized in that, Also includes: Axially movable matrix (1), rotating matrix (3), and rotating ring (2); The four degrees of freedom include three directions corresponding to the three number axes in the three-dimensional rectangular coordinate system, and the rotation direction around the Y-axis. The stripe image unfolding direction is defined as the X-direction, and the direction perpendicular to the stripe image unfolding direction is defined as the Y-direction. The image reading unit (6) is mounted on the first adjustment seat (4) through the first connecting structure (7), and the first adjustment seat (4) is mounted on the second adjustment seat (5) through the second connecting structure. The second adjustment seat (5) and the rotating base (3) are detachably connected. The rotating ring (2) and the rotating base (3) are axially connected to form a rotating body. The axially moving base (1) is sleeved on the rotating body. Inside, the axially moving base (1) is coaxially sleeved outside the coupling lens, and the axially moving base (1) and the rotating base (3) are connected by the third connecting structure (8); the first connecting structure (7), the second connecting structure and the third connecting structure (8) are all adjustable connecting structures. The first connecting structure (7) is used to adjust the position of the image reading unit (6) relative to the first adjusting seat (4) in the X direction, the second connecting structure is used to adjust the position of the first adjusting seat (4) relative to the second adjusting seat (5) in the Z direction, and the third connecting structure (8) is used to adjust the position of the axially moving base (1) relative to the rotating base (3) in the Y direction.

2. The four-degree-of-freedom coupled streak camera readout system according to claim 1, characterized in that, The first connecting structure (7) and the second connecting structure have the same structure; the first connecting structure (7) includes a straight groove (71) and a first connector (72); the straight groove (71) is opened on the first adjusting seat (4), the image reading unit (6) is connected to the first adjusting seat (4) through the first connector (72), and the first connector (72) is located in the straight groove (71).

3. The four-degree-of-freedom coupled streak camera readout system according to claim 1, characterized in that, The third connecting structure (8) includes a waist-shaped hole (81) and a clamping member (82); the waist-shaped hole (81) is opened on the side wall of the rotating base (3), and the clamping member (82) abuts against the side wall of the axially moving base (1), and the clamping member (82) is located inside the waist-shaped hole (81).

4. The four-degree-of-freedom coupled streak camera readout system according to claim 1, characterized in that, The first adjustment seat (4) is a plate-shaped structure and is located on one side of the image reading unit (6).

5. The four-degree-of-freedom coupled streak camera readout system according to claim 1, characterized in that, The second adjustment seat (5) is a plate-shaped structure, and the second adjustment seat (5) is perpendicular to the first adjustment seat (4).

6. The four-degree-of-freedom coupled streak camera readout system according to claim 1, characterized in that, The second adjusting seat (5) and the rotating base (3) are threaded together.

7. The four-degree-of-freedom coupled streak camera readout system according to claim 1, characterized in that, The axially movable base (1) is threadedly engaged with the rotating body.

8. The four-degree-of-freedom coupled streak camera readout system according to claim 1, characterized in that, The axial moving base (1), rotating ring (2), rotating base (3), second adjusting seat (5) and image reading unit (6) are coaxially arranged.

9. The four-degree-of-freedom coupled streak camera readout system according to claim 1, characterized in that, The first connection structure (7), the second connection structure and the third connection structure (8) are each provided in multiple ways.

10. A method of using a four-degree-of-freedom coupled streak camera readout system as described in any one of claims 1 to 9, characterized in that, include: The position of the first adjustment seat (4) relative to the second adjustment seat (5) in the Z direction is adjusted by the second connection structure, so that the coupling lens and the image reading unit (6) are focused and the second connection structure is locked; the position of the image reading unit (6) relative to the first adjustment seat (4) in the X direction is adjusted by the first connection structure (7), so that the stripes fall completely into the field of view and the first connection structure (7) is locked; the position of the axial moving base (1) relative to the rotating base (3) in the Y direction is adjusted by the third connection structure (8), so that the image is centered, and then the rotating ring (2) is rotated to the preset position and the third connection structure (8) is locked.

Images