Rotary target testing aid and method of use

Abstract

The present application relates to the technical field of optical-mechanical system testing, and specifically discloses a rotating target testing auxiliary device and a use method, wherein the rotating target testing auxiliary device comprises a bracket rotatably installed at one end of a main mirror tube and rotating around the optical axis of the main mirror tube, a light splitting assembly installed on the bracket, and a reflecting assembly in sliding cooperation with the bracket and moving linearly along the length direction of the bracket to approach or move away from the light splitting assembly; one end of the bracket away from the light splitting assembly is located above a coarse tracking camera station; a light source, the light splitting assembly, the reflecting assembly, and the coarse tracking camera station form a coarse tracking light beam detection path; and the light source, the light splitting assembly, and the main mirror tube form a fine tracking light beam detection path. The use method thereof is also disclosed; the present application can detect the tracking performance of different position cameras, and solves the problem that different rotating target testing devices need to be designed for different waveband cameras and detectors in the tracking performance testing of optical-mechanical systems.

Description

Technical Field

[0001] This invention relates to the field of optomechanical system testing technology, and more specifically, to a rotating target testing auxiliary device and its usage method. Background Technology

[0002] The photoelectric tracking and aiming subsystem can point to the target by rotating in two dimensions: azimuth and pitch. Its tracking angular velocity, tracking angular acceleration, and tracking accuracy can be tested by a mobile rotating target testing system. This mobile rotating target testing system can also be used to restore and debug the tracking performance of the photoelectric tracking and aiming subsystem.

[0003] The rotating target emits a beam of visible light to simulate a moving target at infinity. A test auxiliary device guides the beam emitted by the rotating target to the camera and detector in the photoelectric tracking system. The photoelectric tracking system then makes corresponding movements to obtain relevant motion data, thereby performing relevant performance tests on the photoelectric tracking system.

[0004] Commonly used rotating target testing auxiliary devices can only test the tracking accuracy of a camera and its detector in one band. If the tracking of multiple cameras and their detectors needs to be tested, multiple different rotating target testing devices need to be designed because the positions of the cameras are different. This results in problems such as multiple disassembly and assembly cycles and low work efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a rotating target testing auxiliary device and a method of use. The present invention can perform tracking performance testing on cameras at different positions, and solves the problem that different rotating target testing devices need to be designed for cameras and detectors of different wavelengths in the tracking performance testing of optomechanical systems.

[0006] The solution adopted by this invention to solve the technical problem is:

[0007] on the one hand:

[0008] This invention discloses a rotating target testing auxiliary device, which is installed on a camera assembly with a coarse tracking camera station and a main lens barrel. It includes a bracket that is rotatably mounted on the main lens barrel and rotates around the optical axis of the main lens barrel, a beam splitter mounted on the bracket, and a reflector that slides with the bracket and moves linearly toward or away from the beam splitter along the length of the bracket. The end of the bracket away from the beam splitter is located above the coarse tracking camera station.

[0009] The light source, beam splitter, reflector, and coarse tracking camera station form the coarse tracking beam detection path;

[0010] The light source, beam splitter, and main lens tube form a precise tracking beam detection path.

[0011] The coarse tracking camera station is used to install multiple cameras of different bands. In use, by rotating the bracket and moving the reflector along the long direction of the bracket, the reflector is positioned above the camera of a certain band to be tested. The light beam emitted by the light source will be split into two beams by the beam splitter. One beam passes through the beam splitter and enters the main lens barrel for fine tracking performance detection. The other beam enters the reflector and is emitted to the camera of the band to be tested for coarse tracking performance detection.

[0012] When testing cameras of different bands, it is only necessary to rotate the bracket and move the reflector component along the long direction of the bracket. Compared with the prior art, the present invention can realize the tracking performance test of multi-band cameras and their detectors at one time, which is more convenient to operate, more efficient to test, and has a wider range of applications.

[0013] In some possible implementations, in order to enable the reflective component to be moved to a designated position and used in conjunction with the camera of the band to be tested, the performance of cameras of different bands can be tested;

[0014] It also includes a linear drive device mounted on the bracket and driven in conjunction with the reflector assembly, and a rotating mechanism mounted on the main lens barrel and driven in conjunction with the bracket.

[0015] In some possible implementations,

[0016] The rotating mechanism includes a worm gear turntable mounted on the main lens barrel; one end 5 of the bracket is mounted on the worm gear turntable; the axis of the worm gear turntable is coaxial with the optical axis of the main lens barrel.

[0017] In some possible implementations,

[0018] The rotating mechanism also includes a mounting base installed on the main lens barrel for mounting the rotating mechanism, a guide rail installed on the mounting base and located between the main lens barrel and the coarse tracking camera station, and a locking connector for locking the bracket and the guide rail; the guide rail and the bracket are slidably engaged.

[0019] In some possible implementations,

[0020] An arc groove is provided on the guide rail, and a slider that slides in cooperation with the arc groove is provided on the bracket; the center of the arc groove is on the optical axis of the main lens barrel.

[0021] In some possible implementations,

[0022] 5 The linear drive device includes a lead screw arranged along the length of the support, a drive component connected to the lead screw, and a slide rail arranged parallel to the lead screw and mounted on the support; the reflector is provided with a lead screw nut screwed to the lead screw; the bottom of the reflector is slidably engaged with the slide rail.

[0023] In some possible implementations, in order to effectively lock the bracket and the reflective assembly;

[0024] The linear drive device further includes a locking element mounted on the bracket for locking the reflector assembly to the bracket.

[0025] In some possible implementations, in order to enable the movement distance of the reflective component to be observed in real time;

[0026] The locking component includes an elongated hole disposed on the bracket and arranged along the longitudinal direction of the bracket, and a locking bolt located in the elongated hole; a scale line is provided on the bracket along its longitudinal direction.

[0027] In some possible implementations, in order to effectively ensure that a portion of the beam reflected by the beam splitter can be incident on the reflector;

[0028] The reflective assembly includes a reflective base with a lead screw nut that slides in conjunction with a slide rail, and a reflective mirror mounted on the reflective base; the angle formed between the reflective mirror and the longitudinal direction of the bracket is angle A, and angle A = 45°;

[0029] The beam splitting assembly includes a beam splitter mounted on a bracket and a beam splitter mounted on the beam splitter and arranged parallel to the reflector.

[0030] on the other hand:

[0031] This invention also discloses a method for using a rotating target testing auxiliary device.

[0032] Based on the position of a certain band camera installed at the coarse tracking camera station, the bracket is rotated by a rotating mechanism so that the bracket is directly above the band camera;

[0033] The mirror is positioned directly above the camera of the band to be tested by moving along the length of the support using a linear drive device.

[0034] The light source located above the beam splitter is turned on. The beam generated by the light source enters the beam splitter. Part of it is transmitted and enters the main lens tube for fine tracking and detection. The other part is reflected and enters the mirror parallel to the beam splitter. After being reflected by the mirror, it enters the camera of this band for coarse tracking and detection.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0036] This invention utilizes a rotating mounting bracket on the main lens barrel, with a reflective component that can move radially along the main lens barrel. This allows the reflective component to be moved above the camera under test according to testing requirements. The light beam emitted by the light source passes through a beam splitter mounted on the bracket; part of the beam is transmitted into the main lens barrel for fine tracking performance testing, while the other part is reflected by the beam splitter to a reflecting mirror, which then reflects it back to the camera under test for coarse tracking performance testing. This invention eliminates the need for disassembly when testing cameras of different bands; the positional relationship between the camera and the reflective component is adjusted simply by rotating the bracket and moving the reflective component along the bracket's length. This enables simultaneous tracking performance testing of multiple band cameras and their detectors, resulting in more convenient operation, higher testing efficiency, and a wider range of applications.

[0037] This invention has a simple structure and is highly practical. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the structure of the rotating mechanism, the support, the reflector, and the beam-splitting component in this invention;

[0040] Figure 3 This is a schematic diagram showing the connection relationship between the guide rail, locking connector, and slider in this invention;

[0041] Figure 4 This is a side view of the rotating mechanism, support, reflector assembly, and beam-splitting assembly in this invention;

[0042] Figure 5 This is a schematic diagram of the linear drive device, bracket, and beam splitting assembly in this invention;

[0043] Figure 6 This is a schematic diagram illustrating the working principle of the present invention;

[0044] The components are as follows: 10. Camera assembly; 101. Band camera; 102. Main lens barrel mechanism; 1. Support; 11. Long slot; 12. Scale line; 2. Beam splitter assembly; 3. Reflector assembly; 31. Reflector base; 32. Scale indicator needle; 4. Linear drive device; 41. Lead screw; 42. Drive component; 43. Slide rail; 44. Locking component; 5. Rotation mechanism; 51. Worm gear turntable; 52. Mounting base; 53. Guide rail; 531. Arc groove; 532. Limit block; 54. Slider; 55. Locking connector; 551. Positioning screw; 552. Washer. Detailed Implementation

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] The present invention will now be described in detail.

[0047] like Figures 1-6 As shown:

[0048] on the one hand:

[0049] This invention discloses a rotating target testing auxiliary device, which is installed on a camera assembly 10 equipped with a coarse tracking camera station and a main lens barrel 102. It includes a bracket 1 that is rotatably mounted on the main lens barrel 102 and rotates around the optical axis of the main lens barrel 102, a beam splitter 2 mounted on the bracket 1, and a reflector 3 that slides with the bracket 1 and moves linearly toward or away from the beam splitter 2 along the length of the bracket 1. The end of the bracket 1 away from the beam splitter 2 is located above the coarse tracking camera station.

[0050] The light source, beam splitter 2, reflector 3, and coarse tracking camera station form a coarse tracking beam detection path;

[0051] The light source, beam splitter 2, and main lens tube 102 form a precise tracking beam detection path.

[0052] The coarse tracking camera station is used to install multiple cameras of different bands. In use, by rotating the bracket 1 and moving the reflector 3 along the long direction of the bracket 1, the reflector 3 is positioned above the camera 101 of a certain band to be tested. The light beam emitted by the light source will be split into two beams by the beam splitter 2. One beam passes through the beam splitter and enters the main lens tube 102 for fine tracking performance detection. The other beam enters the reflector and is emitted to the camera 101 of the band to be tested for coarse tracking performance detection.

[0053] When testing all different band cameras 101, it is only necessary to rotate the bracket 1 and move the reflector 3 along the long direction of the bracket 1. Compared with the prior art, the present invention can realize the tracking performance test of multi-band cameras and their detectors at one time, which is more convenient to operate, more efficient to test, and has a wider range of applications.

[0054] In some possible implementations, in order to enable the reflective component 3 to be moved to a designated position and used in conjunction with the camera 101 of the band to be tested, the performance of the camera 101 of different bands can be tested.

[0055] It also includes a linear drive device 4 mounted on the bracket 1 and driven by the reflector assembly 3, and a rotating mechanism 5 mounted on the main lens barrel and driven by the bracket 1.

[0056] In some possible implementations,

[0057] The rotating mechanism 5 includes a worm gear turntable 51 mounted on the main lens barrel 102; one end of the bracket 1 is mounted on the worm gear turntable 51; the axis of the worm gear turntable 51 is coaxial with the optical axis of the main lens barrel 102.

[0058] The worm gear turntable 51 is an existing product, which includes a worm gear and a worm meshing with the worm gear. The worm gear is rotatably connected to the main mirror barrel 102, driving the bracket 1 mounted on the worm gear to rotate, thereby adjusting the relative position of the reflector and the test band camera 101. It also works with the linear drive device 4 to move the reflector to directly above the test band camera 101, and reflects the light beam into the test band camera 101 for coarse tracking performance testing.

[0059] Furthermore, a dial is provided on the worm gear station, through which the rotation angle of the support 1 can be effectively controlled and positioned.

[0060] In some possible implementations, in order to effectively install the worm gear turntable 51 and effectively support the bracket 1;

[0061] The rotating mechanism 5 also includes a mounting base 52 mounted on the main lens barrel 102 for mounting the rotating mechanism 5, a guide rail 53 mounted on the mounting base 52 and located between the main lens barrel and the coarse tracking camera station, and a locking connector 55 for locking the bracket 1 and the guide rail 53; the guide rail 53 is slidably engaged with the bracket 1.

[0062] Mounting base 52 is mounted on main lens barrel 102 and is coaxial with the optical axis of main lens barrel 102. Worm gear turntable 51 and guide rail 53 are respectively mounted on mounting base 52.

[0063] Preferably, after the rotating mechanism 5 controls the bracket 1 to rotate around the optical axis of the main lens barrel 102 to the designated position, the bracket 1 is locked to the guide rail 53 by the locking connector 55, so that the bracket 1 cannot rotate, thus avoiding small movement of the bracket 1 after reaching the designated position, which would affect the subsequent testing.

[0064] In some possible implementations,

[0065] An arc groove 531 is provided on the guide rail 53, and a slider 54 that slides in cooperation with the arc groove 531 is provided on the bracket 1; the center of the arc groove 531 is on the optical axis of the main lens barrel 102.

[0066] The center of the arc groove 531 is on the optical axis of the main lens barrel 102. The rotating mechanism 5 controls the bracket 1 to rotate around the optical axis of the main lens barrel 102. The arc groove 531 slides with the bracket 1 to guide its rotation.

[0067] Furthermore, the cross-section of the arc groove 531 is T-shaped or dovetail-shaped, with an opening at its small end. The slider 54 will slide in conjunction with the arc groove 531, thus preventing the guide rail 53 from detaching from the bracket 1.

[0068] Furthermore, limit blocks 532 are provided at both ends of the arc groove 531. Under the control of the rotating mechanism 5, the bracket 1 can only move between the two sets of limit blocks 532 to prevent the bracket 1 from separating from the guide rail 53.

[0069] The locking connector 55 includes a positioning screw 551 mounted on the bracket 1 and with one end passing through the bracket 1 and connected to the slider 54, a washer 552 fitted on the outside of the positioning screw 551 and located above the slider 54, and a nut located above the washer 552 and fitted on the outside of the positioning screw 551.

[0070] One end of the positioning screw 551 passes through the bracket 1 and connects to the slider 54. After the bracket 1 is rotated into position, the nut is turned downwards, causing the washer 552 to move downwards and press against the guide rail 53. The positioning screw 551 is connected to the bracket 1 by a combination of two assembly nuts. The two assembly nuts can achieve fine adjustment and locking of the height of the bracket 1. After moving to the designated position, the washer 552 applies a force to the top surface of the guide rail 53 through the nut, locking the bracket 1 and the guide rail 53, thereby preventing the slider 54 in the arc groove 531 from moving.

[0071] Furthermore, the locking connector 55 consists of two sets.

[0072] In some possible implementations, in order to effectively enable the reflector 3 to move along the length of the bracket 1 and cooperate with the rotating mechanism 5 to move the reflector to a designated position and cooperate with the band camera 101 to achieve coarse tracking performance testing;

[0073] The linear drive device 4 includes a lead screw 41 arranged along the length of the bracket 1, a drive component 42 connected to the lead screw 41, and a slide rail 43 arranged parallel to the lead screw 41 and mounted on the bracket 1; the reflector assembly 3 is provided with a lead screw nut screwed to the lead screw 41; the bottom of the reflector assembly 3 is slidably engaged with the slide rail 43.

[0074] When the reflector assembly 3 moves along the length of the bracket 1, the drive unit 42 controls the lead screw 41 to rotate, so that the lead screw nut on the reflector assembly 3 rotates and moves along the length of the lead screw 41. Because the slide rail 43 is set to cooperate with the reflector assembly 3, the lead screw nut can only move along the length of the lead screw 41 and its rotation is restricted. When it moves to the designated position, the drive device stops driving, and the movement of the reflector assembly 3 along the length of the bracket 1 is completed.

[0075] Preferably, the drive component 42 can be a handwheel assembly that is connected to one end of the lead screw 41. By turning the handwheel assembly, the lead screw 41 can be rotated. The handwheel assembly includes a handwheel, a rotating shaft rotatably mounted on the bracket 1 and connected to the handwheel, a gear coaxially connected to the other end of the rotating shaft, and a driven gear that meshes with the drive gear and is coaxially connected to one end of the lead screw 41. By manually controlling the rotation of the handwheel, the rotating shaft is rotated, thereby rotating the drive gear and driving the driven gear meshing with the drive gear to rotate, thus rotating the lead screw 41.

[0076] Preferably, the drive unit 42 includes a drive motor, a drive gear coaxially connected to the output shaft of the drive motor, and a driven gear meshing with the drive gear and coaxially connected to one end of the lead screw 41.

[0077] Furthermore, the driving gear is a bevel gear, and the driven gear is a gear that meshes with the bevel gear.

[0078] In some possible implementations, in order to effectively lock the bracket 1 and the reflective component 3;

[0079] The linear drive device 4 also includes a locking member 44 mounted on the bracket 1 for locking the reflector assembly 3 to the bracket 1.

[0080] After the reflector 3 moves to the designated position along the length of the bracket 1, the locking component 44 locks the reflector 3 to the bracket 1 to prevent the reflector 3 from moving, which would cause inaccurate position control and affect performance testing.

[0081] In some possible implementations, in order to enable the movement distance of the reflective component 3 to be observed in real time;

[0082] The locking component 44 includes an elongated hole 11 disposed on the bracket 1 and disposed along the longitudinal direction of the bracket 1, and a locking bolt located in the elongated hole 11; a scale line 12 is disposed on the bracket 1 along its longitudinal direction.

[0083] Preferably, a locking hole is provided on the outside of the reflector 3. The locking hole is used in conjunction with a locking bolt. When the reflector 3 is moved to the designated position, the end of the locking bolt will enter the locking hole to lock the bracket 1 and the reflector 3.

[0084] The purpose of setting the scale line 12 is to be able to observe the moving distance in real time when controlling the reflective component 3 to move along the long direction of the bracket 1, so as to avoid one end of the reflective component 3 not meeting the requirements.

[0085] Preferably, a scale indicator 32 is provided on the reflector 3. The scale indicator 32 and the reflector 3 will move together, so that the operator can quickly read the moving distance, making the control of the moving distance of the reflector 3 more accurate and efficient.

[0086] Furthermore, the locking components 44 are in two sets, arranged along the length of the bracket 1; each set of locking components 44 includes a set of elongated holes 11 and two sets of locking bolts.

[0087] In some possible implementations, in order to effectively ensure that a portion of the light beam reflected by the beam splitter 2 can be incident on the reflector 3;

[0088] The reflective assembly 3 includes a reflective base 31 with a lead screw nut and sliding cooperation with the slide rail 43, and a reflective mirror mounted on the reflective base 31; the angle formed between the reflective mirror and the longitudinal direction of the bracket 1 is angle A, and angle A = 45°;

[0089] The beam splitting assembly 2 includes a beam splitter mounted on the bracket 1 and a beam splitter mounted on the beam splitter and arranged parallel to the reflector.

[0090] Both the reflector 31 and the beam splitter have hollow structures, which allows the light beam to be incident on the camera 101 and the main lens barrel 102 of the test band respectively, so as to realize the coarse tracking performance and fine tracking performance test.

[0091] on the other hand:

[0092] This invention also discloses a method for using a rotating target testing auxiliary device.

[0093] Before testing, a multi-band camera 101 will be installed at the coarse tracking camera station;

[0094] When it is necessary to test a certain band, the bracket 1 is rotated by the rotating mechanism 5 according to the position of the band camera 101 installed on the coarse tracking camera station so that the bracket 1 is directly above the band camera 101.

[0095] The linear drive device 4 moves along the length of the bracket 1, so that the reflector is directly above the camera 101 of the band to be tested.

[0096] The light source located above the beam splitter is turned on. After the light beam generated by the light source enters the beam splitter, part of it is transmitted and enters the main lens tube 102 for fine tracking and detection, and the other part is reflected and enters the mirror parallel to the beam splitter. After being reflected by the mirror, it enters the camera 101 of this band for coarse tracking and detection.

[0097] After the testing of camera 101 in one band is completed, the next band camera 101 is tested. At this time, the bracket 1 is rotated to the position directly above the corresponding band camera 101 to be tested by the rotating mechanism 5. Then, the reflector 3 is driven to move directly above the band camera 101 to be tested by the linear drive device 4. The test can be completed without disassembling the entire device before the testing of all band cameras 101 in the coarse tracking station is completed. It can realize the tracking performance test of multi-band cameras and their detectors at one time, which is more convenient to operate, more efficient to test, and has a wider range of applications. Compared with the prior art, the present invention has a higher degree of integration, is more convenient to operate, and is more efficient to test.

[0098] This invention is not limited to the specific embodiments described above. The invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A rotating target testing auxiliary device, installed on a camera assembly equipped with a coarse tracking camera station and a main lens barrel, characterized in that, The system includes a bracket rotatably mounted on the main lens barrel and rotating about the optical axis of the main lens barrel; a beam splitter mounted on the bracket; a reflector slidingly engaged with the bracket and moving linearly towards or away from the beam splitter along the length of the bracket; a linear drive device mounted on the bracket and driven by the reflector; and a rotating mechanism mounted on the main lens barrel and driven by the bracket. The end of the bracket away from the beam splitter is located above the coarse tracking camera station. The light source, beam splitter, reflector, and coarse tracking camera station form a coarse tracking beam detection path; the light source, beam splitter, and main lens barrel form a fine tracking beam detection path. The coarse tracking camera station is used to install multiple cameras of different bands. In use, by rotating the bracket and moving the reflector along the long direction of the bracket, the reflector is positioned above the camera of a certain band to be tested. The light beam emitted by the light source will be split into two beams by the beam splitter. One beam passes through the beam splitter and enters the main lens barrel for fine tracking performance detection. The other beam enters the reflector and is emitted to the camera of the band to be tested for coarse tracking performance detection. When testing cameras of all different bands, it is only necessary to rotate the bracket and move the reflector along the long direction of the bracket; The reflective assembly includes a reflective base with a lead screw nut that slides in conjunction with a linear drive device, and a reflector mounted on the reflective base; the angle formed between the reflector and the longitudinal direction of the bracket is angle A, and angle A = 45°; the beam splitting assembly includes a beam splitting base mounted on the bracket, and a beam splitter mounted on the beam splitting base and arranged parallel to the reflector; The rotating mechanism includes a worm gear turntable mounted on the main lens barrel, a mounting base mounted on the main lens barrel for mounting the worm gear turntable, and a guide rail mounted on the mounting base and located between the main lens barrel and the coarse tracking camera station. An arc groove is provided on the guide rail, and a slider that slides in cooperation with the arc groove is provided on the bracket; the center of the arc groove is on the optical axis of the main lens barrel.

2. The rotating target testing auxiliary device according to claim 1, characterized in that, One end of the bracket is mounted on the worm gear turntable; the worm gear turntable is coaxial with the optical axis of the main lens barrel.

3. The rotating target testing auxiliary device according to claim 2, characterized in that, The rotating mechanism also includes a locking connector for locking the bracket and the guide rail; the guide rail and the bracket are in sliding engagement.

4. The rotating target testing auxiliary device according to claim 1, characterized in that, The linear drive device includes a lead screw arranged along the length of the support, a drive component connected to the lead screw, and a slide rail arranged parallel to the lead screw and mounted on the support; the lead screw nut is screwed to the lead screw; and the bottom of the reflector assembly is slidably engaged with the slide rail.

5. The rotating target testing auxiliary device according to claim 4, characterized in that, The linear drive device also includes a locking element mounted on the bracket for locking the reflector to the bracket.

6. The rotating target testing auxiliary device according to claim 5, characterized in that, The locking component includes an elongated hole disposed on the bracket and arranged along the longitudinal direction of the bracket, and a locking bolt located in the elongated hole; a scale line is provided on the bracket along its longitudinal direction.

7. A method of using a rotating target testing auxiliary device according to any one of claims 1-6, characterized in that, Based on the position of a certain band camera installed at the coarse tracking camera station, the bracket is rotated by a rotating mechanism so that the bracket is directly above the band camera; The mirror is positioned directly above the camera of the band to be tested by moving along the length of the support using a linear drive device. The light source located above the beam splitter is turned on. The beam generated by the light source enters the beam splitter. Part of it is transmitted and enters the main lens tube for fine tracking and detection. The other part is reflected and enters the mirror parallel to the beam splitter. After being reflected by the mirror, it enters the camera of this band for coarse tracking and detection.

Images