Laser trap for space atomic nucleus element detection

Abstract

The invention relates to the technical field of space environment detection, in particular to a laser trap for space atomic nucleus element detection, which comprises a mounting bracket, a laser absorption mirror group and a baffle plate, and is characterized in that the mounting bracket comprises an inner bracket and an outer bracket; the laser absorption mirror group consists of four absorption reflectors with 45-degree inclined planes, namely a first absorption reflector, a second absorption reflector, a third absorption reflector and a fourth absorption reflector; the baffles comprise the first baffle, the second baffle and the third baffle, and the first baffle is arranged at the top end of the outer support and located at the opposite position of the fourth absorption reflector. The second baffle is arranged on one side of the installation support, and the third baffle is arranged on the other side of the installation support. According to the laser trap, a mode of combining multiple groups of absorption reflectors is adopted, so that laser stray light can enter the interior of the laser trap to be completely absorbed, the whole laser trap adopts an assembly mode, and the installation efficiency of the laser trap is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of space environment detection, in particular to a laser trap for space atomic nucleus detection. BACKGROUND

[0002] Atomic nucleus detection is realized based on the interaction between atoms on the surface of a substance and a laser beam. This detection method utilizes the light scattering signals of different wavelengths generated by the excited atoms on the surface of a substance after interacting with a laser, converts the light scattering signals of different wavelengths into electrical signals through a photoelectric detector, obtains the optical scattering signals of the atomic nucleus on the surface of the substance, and then inversely analyzes the type of the atomic nucleus on the surface of the substance through an analytical algorithm.

[0003] After the laser passes through the measurement area, stray light is formed by multiple reflections on other structures inside the device. The stray light forms light pollution in the laser detector area. In order to reliably absorb the stray light passing through the sensor detection area, a stray light absorption assembly that can completely absorb the stray light formed after the laser passes through the surface of the substance needs to be designed. SUMMARY

[0004] The present application provides a laser trap for space atomic nucleus detection, which can reliably absorb stray laser light in space during the detection of atomic nuclei on the surface of space matter.

[0005] In order to achieve the above purpose, the present application provides a laser trap for space atomic nucleus detection, comprising a mounting bracket, a laser absorption mirror group and a baffle, wherein: the mounting bracket comprises an inner bracket and an outer bracket, and the outer bracket is fixedly buckled on the inner bracket; the laser absorption mirror group is composed of four 45° inclined absorption mirrors, which are a first absorption mirror, a second absorption mirror, a third absorption mirror and a fourth absorption mirror; the first absorption mirror is fixedly arranged at the top end of the inner bracket, the second absorption mirror is fixedly arranged at the bottom end of the inner bracket, and the first absorption mirror and the second absorption mirror are arranged opposite to each other; the third absorption mirror is fixedly arranged at the bottom end of the outer bracket, and the fourth absorption mirror is fixedly arranged at the top end of the outer bracket; the third absorption mirror and the fourth absorption mirror are arranged opposite to each other; the bottom ends of the second absorption mirror and the third absorption mirror are flush; the baffle comprises a first baffle, a second baffle and a third baffle, the first baffle is arranged at the top end of the outer bracket and located opposite to the fourth absorption mirror; the second baffle is arranged on one side of the mounting bracket, and the third baffle is arranged on the other side of the mounting bracket.

[0006] Further, the first absorption mirror, the second absorption mirror, the third absorption mirror and the fourth absorption mirror form a spiral optical darkroom, the laser stray light is parallelly injected, sequentially reflected vertically by the first absorption mirror, the second absorption mirror, the third absorption mirror and the fourth absorption mirror, and finally absorbed by the first baffle.

[0007] Further, the first absorption mirror, the second absorption mirror, the third absorption mirror and the fourth absorption mirror are all made of absorption optical glass material, and the surfaces are coated with anti-reflection film, and the surface roughness is less than 3nm.

[0008] Further, the first absorption mirror, the second absorption mirror, the third absorption mirror and the fourth absorption mirror are all made of absorption optical glass material, and the surfaces are coated with anti-reflection film, and the surface roughness is less than 3nm.

[0009] Further, the first absorption mirror, the second absorption mirror, the third absorption mirror and the fourth absorption mirror are all made of absorption optical glass material, and the surfaces are coated with anti-reflection film, and the surface roughness is less than 3nm.

[0010] Further, the first absorption mirror, the second absorption mirror, the third absorption mirror and the fourth absorption mirror are all made of absorption optical glass material, and the surfaces are coated with anti-reflection film, and the surface roughness is less than 3nm.

[0011] Further, the surface of the baffle is blackened.

[0012] The application provides a laser trap for spatial atomic nucleus detection, which has the following beneficial effects:

[0013] The application adopts the form of multiple absorption mirrors combined, so that the laser stray light can enter the inside of the laser trap and be completely absorbed, the whole is assembled in the form of components, the installation efficiency of the laser trap is greatly improved, the two ends of the absorption mirror are fixedly connected through the damping pad and the support, the mirror surface can be effectively prevented from being directly stressed, the mechanical properties of the component are improved, the reliable connection of the absorption mirror is ensured, the surface of the baffle and other metal structures is blackened, the reflection of the stray light is reduced, and the absorption of the light is beneficial. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings constituting a part of the application are used to provide a further understanding of the application, so that other features, purposes and advantages of the application become more obvious. The illustrative embodiment drawings of the application and the description thereof are used to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0015] Figure 1 is a structural diagram of a laser trap for spatial atomic nucleus detection provided by an embodiment of the application;

[0016] Figure 2 is a schematic diagram of an endotracheal tube provided by an embodiment of the application;

[0017] Figure 3 is a schematic diagram of an endotracheal tube provided by an embodiment of the application;

[0018] Figure 4 is a schematic diagram of an endotracheal tube provided by an embodiment of the application;

[0019] Figure 5 is a schematic diagram of a second baffle (third baffle) provided by an embodiment of the application;

[0020] Figure 6 is a schematic diagram of a first left pressing plate (first right pressing plate) provided by an embodiment of the application;

[0021] Figure 7 is a schematic diagram of a second left pressing plate (second right pressing plate) provided by an embodiment of the application;

[0022] Figure 8 is a schematic diagram of an absorbing mirror provided by an embodiment of the application;

[0023] In the figure: 1-endotracheal tube, 2-outer support, 3-first absorbing mirror, 4-second absorbing mirror, 5-third absorbing mirror, 6-fourth absorbing mirror, 7-first baffle, 8-second baffle, 9-third baffle, 10-first left damping pad, 11-first right damping pad, 12-first left pressing plate, 13-first right pressing plate, 14-second left damping pad, 15-second right damping pad, 16-third left damping pad, 17-third right damping pad, 18-fourth left damping pad, 19-fourth right damping pad, 20-second left pressing plate, 21-second right pressing plate. DETAILED DESCRIPTION

[0024] In order to enable persons skilled in the art to better understand the application scheme, the technical solutions in the embodiments of the application will be described clearly and completely below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by persons skilled in the art without creative labor should belong to the protection scope of the application.

[0025] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and the above-described accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific sequence or chronology. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or apparatus including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or apparatuses.

[0026] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0027] Also, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0028] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] As Figure 1As shown, the application provides a laser trap for spatial atomic nucleus detection, comprising a mounting bracket, a laser absorption mirror group and a baffle, wherein: the mounting bracket comprises an inner bracket 1 and an outer bracket 2, and the outer bracket 2 is fixedly buckled on the inner bracket 1; the laser absorption mirror group is composed of four 45° inclined absorption mirrors, which are a first absorption mirror 3, a second absorption mirror 4, a third absorption mirror 5 and a fourth absorption mirror 6; the first absorption mirror 3 is fixedly arranged at the top end of the inner bracket 1, the second absorption mirror 4 is fixedly arranged at the bottom end of the inner bracket 1, and the first absorption mirror 3 and the second absorption mirror 4 are arranged opposite to each other; the third absorption mirror 5 is fixedly arranged at the bottom end of the outer bracket 2, and the fourth absorption mirror 6 is fixedly arranged at the top end of the outer bracket 2, and the third absorption mirror 5 and the fourth absorption mirror 6 are arranged opposite to each other; the bottom ends of the second absorption mirror 4 and the third absorption mirror 5 are flush; the baffle comprises a first baffle 7, a second baffle 8 and a third baffle 9, the first baffle 7 is arranged at the top end of the outer bracket 2 and located opposite to the fourth absorption mirror 6, the second baffle 8 is arranged on one side of the mounting bracket, and the third baffle 9 is arranged on the other side of the mounting bracket.

[0031] Specifically, the laser trap for spatial atomic nucleus detection provided by the embodiment of the application mainly absorbs stray laser light in the atomic nucleus detection process, and the laser trap as a whole is a spiral optical darkroom composed of four 45° inclined absorption mirrors, wherein, as shown in the figure, Figures 3-4 As shown, the mounting bracket of the laser trap is divided into an inner bracket 1 and an outer bracket 2, which are arranged opposite to each other, and the outer bracket 2 is fixedly buckled on the inner bracket 1, the bottom ends of the outer bracket 2 and the inner bracket 1 are flush, the height of the outer bracket 2 is about 2 / 3 of the height of the inner bracket 1, and the heights of the two brackets are mainly based on the size of the actually installed absorption mirror. The first baffle 7 and the fourth absorption mirror 6 are arranged opposite to each other, which are used to block reflected light so that the laser stray light is completely absorbed, the second baffle 8 and the third baffle 9 are used to connect and fix the outer bracket 2 and the inner bracket 1, and are arranged on both sides of the connection, as shown in the figure, Figure 5 so that the outer bracket 2 can be stably fixed on the inner bracket 1.

[0032] Further, as shown in the figure, Figure 2 The first absorption mirror 3, the second absorption mirror 4, the third absorption mirror 5 and the fourth absorption mirror 6 form a spiral optical darkroom, the laser stray light is parallelly incident, and is sequentially reflected vertically through the first absorption mirror 3, the second absorption mirror 4, the third absorption mirror 5 and the fourth absorption mirror 6, and finally absorbed by the first baffle 7.

[0033] Specifically, in the embodiments of the present application, the first absorbing mirror 3 is fixedly arranged at the top end of the inner support 1, the second absorbing mirror 4 is fixedly arranged at the bottom end of the inner support 1, the first absorbing mirror 3 and the second absorbing mirror 4 are arranged oppositely in the up-down direction; the third absorbing mirror 5 is fixedly arranged at the bottom end of the outer support 2, the fourth absorbing mirror 6 is fixedly arranged at the top end of the outer support 2, the third absorbing mirror 5 and the fourth absorbing mirror 6 are arranged oppositely in the up-down direction; the bottom ends of the second absorbing mirror 4 and the third absorbing mirror 5 are flush. When the laser trap works, the laser stray light is parallelly emitted to the first absorbing mirror 3, is reflected to the second absorbing mirror 4 after being absorbed for the first time, is reflected to the third absorbing mirror 5 after being absorbed for the second time, is reflected to the fourth absorbing mirror 6 after being absorbed for the third time, and is finally reflected to the first baffle 7 after being absorbed for the fourth time, is blocked by the first baffle 7 and is limited in the inside of the trap, until being completely absorbed.

[0034] Further, as shown in Figure 8 , the first absorbing mirror 3, the second absorbing mirror 4, the third absorbing mirror 5 and the fourth absorbing mirror 6 are all made of absorbing optical glass material, and the surfaces of the mirrors are all coated with an antireflection film, and the roughness of the surfaces is less than 3 nm.

[0035] Specifically, the first absorbing mirror 3, the second absorbing mirror 4, the third absorbing mirror 5 and the fourth absorbing mirror 6 are all made of absorbing optical glass material, and the roughness of the surfaces is better than 3 nm, reaching the level of super-smoothness, the surfaces of the mirrors are all coated with an antireflection film, the reflectivity of the light spot on the inclined surface is less than 3%, the internal absorption rate is greater than 99.99%, and the transmittance is less than one ten-thousandth. According to actual use requirements, the straight surface of the absorbing mirror can also be designed as a circular arc surface, increasing different designs and use forms, so that the absorption of the laser stray light is not limited, and other types of light also have the same absorption effect.

[0036] More specifically, when the laser stray light enters the inside of the laser trap, more than 96% of the light energy is absorbed when passing through the first absorbing mirror 3, about 4% of the reflected light is reflected to the second absorbing mirror 4, and then is reflected to the third absorbing mirror 5 and the fourth absorbing mirror 6, and finally is absorbed on the first baffle 7 or is scattered and completely absorbed after multiple times of scattering; according to the principle of optical path reversibility, if a parallel light beam is incident, it needs to be reflected at least 8 times to return to the incident light transmission space, at this time, the energy is attenuated to the order of 10 -9 , and the returned reflected light energy can be completely ignored, greatly improving the absorption capacity of the laser stray light.

[0037] Further, as shown in Figure 6As shown, the first absorbing mirror 3 is provided with damping pads at both ends, which are a first left damping pad 10 and a first right damping pad 11 respectively, the first left damping pad 10 is fixed at the left end of the inner support 1 through a first left pressing plate 12, and the first right damping pad 11 is fixed at the right end of the inner support 1 through a first right pressing plate 13.

[0038] Further, the second absorbing mirror 4 is provided with damping pads at both ends, which are a second left damping pad 14 and a second right damping pad 15 respectively; the third absorbing mirror 5 is provided with damping pads at both ends, which are a third left damping pad 16 and a third right damping pad 17 respectively; and the fourth absorbing mirror 6 is provided with damping pads at both ends, which are a fourth left damping pad 18 and a fourth right damping pad 19 respectively.

[0039] Further, as shown, Figure 7 the second left damping pad 14, the third left damping pad 16 and the fourth left damping pad 18 are fixed at the left end of the mounting support through a second left pressing plate 20; and the second right damping pad 15, the third right damping pad 17 and the fourth right damping pad 19 are fixed at the right end of the mounting support through a second right pressing plate 21.

[0040] Specifically, the absorbing mirror is provided with damping pads at both ends, and the absorbing mirror is fixed on the limiting protrusion mounting structure at both ends of the mounting support through the baffle and the damping pad, so that the position of each absorbing mirror is fixed and reliably connected, which is conducive to the reliable positioning of the absorbing mirror, and at the same time, the damping pad is used for damping, which can prevent the mirror surface from being directly stressed and improve the mechanical properties of the assembly.

[0041] More specifically, when the laser trap is assembled, the inner support 1 is rotated 90° clockwise parallel to the paper surface, the first absorption mirror 3 is placed on the corresponding position of the inner support 1, then the first left damping pad 10 is fastened to the left end of the inner support 1 through the first left pressing plate 12, the first right damping pad 11 is fastened to the right end of the inner support 1 through the first right pressing plate 13, and the second absorption mirror 4 is placed on the corresponding position of the inner support 1, the outer support 2 is rotated 90° counterclockwise parallel to the paper surface, the third absorption mirror 5 and the fourth absorption mirror 6 are placed on the corresponding positions of the outer support 2, the first baffle 7 is fastened to the outer support 2 through a screw, then the outer support 2 is fastened to the inner support 1 through a screw, the second left damping pad 14, the third left damping pad 16 and the fourth left damping pad 18 are placed on the corresponding positions on the left side of the second absorption mirror 4, the third absorption mirror 5 and the fourth absorption mirror 6, and are fastened to the left end of the mounting support through the second left pressing plate 20 and a screw. Similarly, the second right damping pad 15, the third right damping pad 17 and the fourth right damping pad 19 are placed on the corresponding positions on the right side of the second absorption mirror 4, the third absorption mirror 5 and the fourth absorption mirror 6, and are fastened to the right end of the mounting support through the second right pressing plate 21 and a screw, finally, the second baffle 8 and the third baffle 9 are installed on the fixed connection between the left and right ends of the inner support 1 and the outer support 2 through a screw, thereby realizing the overall assembly of the laser trap.

[0042] Further, the surface of the baffle is blackened. In the embodiment of the present application, the surface of all metal structural members such as baffles inside the laser trap is blackened to reduce reflection of laser stray light and facilitate absorption of laser stray light.

[0043] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Various modifications and changes can be made by those skilled in the art based on the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A laser trap for spatial atomic species detection, characterized in that, The mounting bracket, the laser absorption mirror group and the baffle are included, wherein: The mounting bracket includes an inner bracket and an outer bracket, and the outer bracket is fixedly buckled on the inner bracket; The laser absorption mirror group is composed of four 45° inclined absorption mirrors, which are a first absorption mirror, a second absorption mirror, a third absorption mirror and a fourth absorption mirror; The first absorption mirror is fixedly arranged at the top end of the inner bracket, the second absorption mirror is fixedly arranged at the bottom end of the inner bracket, and the first absorption mirror and the second absorption mirror are arranged oppositely in the up-down direction; The third absorption mirror is fixedly arranged at the bottom end of the outer bracket, and the fourth absorption mirror is fixedly arranged at the top end of the outer bracket, and the third absorption mirror and the fourth absorption mirror are arranged oppositely in the up-down direction; The bottom ends of the second absorption mirror and the third absorption mirror are flush; The baffle includes a first baffle, a second baffle and a third baffle, the first baffle is arranged at the top end of the outer bracket and located opposite the fourth absorption mirror; The second baffle is arranged on one side of the mounting bracket, and the third baffle is arranged on the other side of the mounting bracket.

2. The laser trap for spatial isotope detection of claim 1, wherein, The first absorption mirror, the second absorption mirror, the third absorption mirror and the fourth absorption mirror form a spiral optical darkroom, laser stray light is parallelly injected, sequentially passes through the vertical reflection of the first absorption mirror, the second absorption mirror, the third absorption mirror and the fourth absorption mirror, and is finally absorbed by the first baffle.

3. The laser trap for spatial isotope detection of claim 2, wherein, The first absorption mirror, the second absorption mirror, the third absorption mirror and the fourth absorption mirror are all made of absorption type optical glass material, and the surfaces thereof are coated with an anti-reflection film, and the surface roughness is less than 3nm.

4. The laser trap for spatial isotope detection of claim 3, wherein, The first absorption mirror is provided with damping pads at both ends, which are a first left damping pad and a first right damping pad, the first left damping pad is fixed to the left end of the inner bracket through a first left pressing plate, and the first right damping pad is fixed to the right end of the inner bracket through a first right pressing plate.

5. The laser trap for spatial isotope detection of claim 4, wherein, The second absorption mirror is provided with damping pads at both ends, which are a second left damping pad and a second right damping pad; the third absorption mirror is provided with damping pads at both ends, which are a third left damping pad and a third right damping pad; and the fourth absorption mirror is provided with damping pads at both ends, which are a fourth left damping pad and a fourth right damping pad.

6. The laser trap for spatial isotope detection of claim 5, wherein, The second left damping pad, the third left damping pad and the fourth left damping pad are fixed to the left end of the mounting bracket through the second left pressing plate; and the second right damping pad, the third right damping pad and the fourth right damping pad are fixed to the right end of the mounting bracket through the second right pressing plate.

7. The laser trap for spatial isotope detection of claim 6, wherein, The surface of the baffle is blackened.

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