Disclosure of Invention
The technical problems to be solved by the invention are as follows: the device for verifying the spatial unwinding relation of the beam director can intuitively display the working process of the beam director, can conveniently and rapidly verify the unwinding relation between the rotation quantity of the beam director along a driving shaft and the target rotation angle, analyzes errors caused by light path change, and provides data support for the use of the beam director.
In order to solve the technical problems, the invention is realized by the following technical scheme: the spatial unwinding relation verifying device of the beam director comprises an observation window, a target window, a plurality of reflecting modules, a fixed connecting module and a movable connecting module, wherein,
A reflection module comprising an optical chamber and a mirror; the optical cavity comprises two side walls which are perpendicular to each other and an inclined side face which is detachably connected between the two side walls; the two mutually perpendicular side walls of the optical cavity are respectively provided with a clear aperture for light to pass through, and the reflector is adjustably arranged in the inner cavity of the optical cavity;
The fixed connection module is in a cylindrical structure with a large outer diameter in the middle and small two ends and is used for fixedly connecting two adjacent reflection modules;
the movable connecting module is in a cylindrical structure with a large outer diameter and two small ends and is used for rotationally connecting two adjacent reflecting modules; the outer side of the middle shaft body is also provided with a close scale for reading the rotating angle of the reflecting module;
the observation window is arranged on a clear aperture positioned at the light path outlet, and the surface of the observation window is drawn with a coordinate grid for reading the rotating angle of the target;
and the target window is arranged on a clear aperture positioned at the light path inlet, and the surface of the target window is drawn with cross wires for simulating the target.
Preferably, the reflection module comprises a first reflection module, a second reflection module, a third reflection module, a fourth reflection module and a fifth reflection module which are connected in sequence, wherein,
The first reflecting module and the second reflecting module are rotatably connected through the movable connecting module;
the second reflecting module is fixedly connected with the third reflecting module through a fixed connecting module;
The third reflecting module is fixedly connected with the fourth reflecting module through a fixed connecting module;
The fourth reflecting module and the fifth reflecting module are rotatably connected through the movable connecting module;
The observation window is arranged on the side edge of the first reflection module, and the target window is arranged on the side edge of the fifth reflection module.
Preferably, the first, second, fourth and fifth reflection modules have the same structure, and each of the first, second, fourth and fifth reflection modules includes a fan-shaped optical cavity, a first mounting slot and a first mirror, where the fan-shaped optical cavity includes two first sidewalls perpendicular to each other and a first inclined side surface detachably connected between the two first sidewalls; the fan-shaped optical cavity is characterized in that a first clear aperture and a second clear aperture for light to pass through are respectively formed in two first side walls of the fan-shaped optical cavity, which are perpendicular to each other, a plurality of first installation clamping grooves are fixedly formed in the inner wall of the fan-shaped optical cavity, and the first reflecting mirror is installed in the different first installation clamping grooves to adjust angles.
Preferably, the first reflecting mirror has an adjustment angle of 43 ° to 47 ° with respect to any one of the first side walls in the first mounting groove.
Preferably, the third reflecting module comprises a polygonal optical cavity, a second mounting clamping groove, a second reflecting mirror and a third reflecting mirror, wherein the polygonal optical cavity comprises two second side walls which are perpendicular to each other and a second inclined side face which is detachably connected between the two second side walls; the second side walls of the polygonal optical cavity are respectively provided with a third clear aperture and a fourth clear aperture for light to pass through, the inner wall of the polygonal optical cavity is fixedly provided with two second installation clamping grooves, and the second installation clamping grooves are respectively provided with a second reflector and a third reflector.
Preferably, the two second mounting clamping grooves form an included angle of 67.5 degrees with the two second side walls respectively.
Preferably, the observation window is mounted at the clear aperture of the first reflection module at the light path outlet through a snap ring, a sleeve structure coaxial with the clear aperture is mounted on the outer side of the observation window, and the target window is mounted at the clear aperture of the fifth reflection module at the light path inlet through a snap ring.
Preferably, the diameters of the first clear aperture, the second clear aperture, the third clear aperture and the fourth clear aperture are the same, the widths of the first reflecting mirror, the second reflecting mirror and the third reflecting mirror are the same, the edges of all the clear apertures extend outwards to form a cylindrical extension side wall, and the extension side wall is connected with the cylindrical structure in a matched manner, and the diameter of the extension side wall is 90% of the width of any reflecting mirror, so that light can pass through the corresponding clear aperture after passing through any reflecting mirror.
Preferably, the movable connection module rotationally connected with the first reflection module and the second reflection module is set as an azimuth axis connection module; the fixed connection module fixedly connected with the second reflection module and the third reflection module is set as a horizontal connection module; the fixed connection module fixedly connected with the third reflection module and the fourth reflection module is set as a vertical connection module; the movable connecting module rotationally connected with the fourth reflecting module and the fifth reflecting module is set as a pitching axis connecting module;
the parts with small outer diameters at the two ends of the cylindrical structure of all the connecting modules are arranged as interfaces, the interfaces are respectively sleeved on the clear apertures of the two adjacent reflecting modules, the parts with large middle outer diameters are arranged as intermediate shaft bodies, and the outer diameters of the intermediate shaft bodies are larger than the diameters of the clear apertures so as to enhance the connection strength and determine the interval between the two adjacent reflecting modules.
Preferably, the fan-shaped optical chamber and the polygonal optical chamber are made of plastic materials, and the observation window and the target window are made of transparent lenses.
Compared with the prior art, the invention has the following advantages:
1. The invention is formed by splicing and assembling the reflecting module, the fixed connecting module, the movable connecting module, the observation window, the target window and the like, is used for demonstrating and verifying the space unwinding relation of the beam director, and the quantity and the shape of the reflecting module can be selected and customized according to the actual verification requirement and are spliced by the fixed connecting module and the movable connecting module, so that the structure is simple and the installation is convenient; the installation angles of the reflectors or the number of the reflectors in each reflecting module can be flexibly customized and changed, so that the verification device of the spatial unwinding relation of the beam directors of different light paths is built, and the expandability is good; the outside of the cylinder structure is provided with a close scale, so that the rotation angle of the reflecting module can be intuitively and accurately adjusted and read, and the use is convenient.
2. The invention replaces the traditional mode of using an actual beam director for verification, and the modeling design has the advantages of convenient carrying, no limitation of sites, and reduction of operation difficulty and verification cost compared with the use of a large-sized and expensive beam director.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; the device can be mechanically connected, electrically connected, physically connected or wirelessly connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The invention provides a spatial unwinding relation verification device of a beam director, which comprises an observation window, a target window, a plurality of reflecting modules, a fixed connection module and a movable connection module, wherein,
A reflection module comprising an optical chamber and a mirror; the optical cavity comprises two side walls which are perpendicular to each other and an inclined side face which is detachably connected between the two side walls; the two mutually perpendicular side walls of the optical cavity are respectively provided with a clear aperture for light to pass through, and the reflector is adjustably arranged in the inner cavity of the optical cavity;
The fixed connection module is in a cylindrical structure with a large outer diameter in the middle and small two ends and is used for fixedly connecting two adjacent reflection modules;
The movable connecting module is in a cylindrical structure with a large outer diameter and two small ends and is used for rotationally connecting two adjacent reflecting modules; the outside of the cylinder structure is also provided with a close scale for reading the rotating angle of the reflecting module;
The observation window 7 is arranged on a clear aperture positioned at the light path outlet, and the surface of the observation window is drawn with a coordinate grid for reading the rotating angle of the target;
and the target window 8 is arranged on a clear aperture positioned at the entrance of the light path, and the surface of the target window is drawn with cross wires for simulating the target.
Example 1
The device for verifying the spatial unwinding relation of the beam director is applied to verification of the spatial unwinding relation of the beam director, and the reflecting modules comprise a first reflecting module 1, a second reflecting module 2, a third reflecting module 3, a fourth reflecting module 4 and a fifth reflecting module 5 which are sequentially connected, wherein,
The first reflecting module 1 and the second reflecting module 2 are rotatably connected through a movable connecting module;
the second reflecting module 2 is fixedly connected with the third reflecting module 3 through a fixed connecting module;
the third reflecting module 3 is fixedly connected with the fourth reflecting module 4 through a fixed connecting module;
The fourth reflecting module 4 and the fifth reflecting module 5 are rotatably connected through a movable connecting module;
The observation window 7 is mounted on the side of the first reflection module 1, and the target window 8 is mounted on the side of the fifth reflection module 5.
Further, the fixed connection means in this embodiment is fixed by adopting an adhesive manner, and the movable connection means that the two can rotate relative to the central axis of the clear aperture, which can be specifically assembled in the following manner: the first reflecting module 1 is movably connected with the second reflecting module 2, namely, the sleeving part of the first reflecting module 1 and the movable connecting module is not fixedly bonded, so that the first reflecting module 1 can rotate along the central axis of the corresponding clear aperture; the second reflection module 2 and the third reflection module 3, and the third reflection module 3 and the fourth reflection module 4 are fixedly adhered; the fourth reflecting module 4 and the fifth reflecting module 5 are movably connected, that is, the sleeving part of the fifth reflecting module 5 and the movable connecting module is not fixedly bonded, so that the fifth reflecting module 5 can rotate along the central axis of the corresponding clear aperture.
For easy installation, the first, second, fourth and fifth reflection modules 1, 2, 4 and 5 are designed to have the same structure; as shown in fig. 2, any of the above-mentioned reflection modules includes a fan-shaped optical cavity 21, a first mounting slot 26 and a first reflecting mirror 24, where the fan-shaped optical cavity 21 includes two first sidewalls perpendicular to each other and a first inclined side 25 detachably connected between the two first sidewalls; the first side walls of the fan-shaped optical cavity 21, which are perpendicular to each other, are respectively provided with a first clear aperture 22 and a second clear aperture 23 for light to pass through, the inner wall of the fan-shaped optical cavity 21 is fixedly provided with a plurality of first mounting clamping grooves 26, and the first reflecting mirror 24 is arranged in different first mounting clamping grooves to realize angle adjustment.
Preferably, the first reflecting mirror 24 has an adjustment angle of 43 ° to 47 ° with respect to any one of the first side walls in the first mounting groove 26.
As shown in fig. 3, the third reflection module 3 of the present embodiment includes a polygonal optical chamber 31, a second mounting slot 36, a second reflection mirror 341, and a third reflection mirror 342, where the polygonal optical chamber 31 includes two second sidewalls perpendicular to each other and a second inclined side 35 detachably connected between the two second sidewalls; the two second side walls perpendicular to each other of the polygonal optical chamber 31 are respectively provided with a third clear aperture 32 and a fourth clear aperture 33 for light to pass through, two second mounting slots 36 are fixedly mounted on the inner wall of the polygonal optical chamber 31, and a second reflector 341 and a third reflector 342 are respectively disposed in the two second mounting slots 36.
Further, the two second mounting slots 36 form an angle of 67.5 ° with the two second side walls.
As shown in fig. 4, the movable connection module/fixed connection module of the present embodiment is a azimuth axis connection module 92, which is a movable connection module rotatably connected to the first reflection module 1 and the second reflection module 2; the fixed connection module fixedly connected to the second reflection module 2 and the third reflection module 3 is set as a horizontal connection module 94; the fixed connection module fixedly connected to the third reflection module 3 and the fourth reflection module 4 is set as a vertical connection module 93; the movable connection module rotationally connected with the fourth reflection module 4 and the fifth reflection module 5 is set as a pitching axis connection module 91; the small outer diameter parts of the two ends of the cylindrical structure of all the connecting modules are provided with interfaces 41 which are respectively sleeved on the clear apertures of the two adjacent reflecting modules, the large outer diameter part of the middle is provided with a middle shaft body 42, and the outer diameter of the middle shaft body is larger than the diameter of the clear aperture so as to enhance the connection strength and determine the interval between the two adjacent reflecting modules.
Further, in order to read the rotation angles of the first reflection module 1 and the fifth reflection module 5, the outside of the intermediate shaft body 42 of the azimuth axis connection module 92 and the pitch axis connection module 91 has a close scale.
For convenience of verification, the diameters of the first clear aperture 22, the second clear aperture 23, the third clear aperture 32 and the fourth clear aperture 33 are the same, the widths of the first reflecting mirror 24, the second reflecting mirror 341 and the third reflecting mirror 342 are the same, and the diameter of any clear aperture is 90% of the width of any reflecting mirror, so that the light can pass through the corresponding clear aperture after passing through any reflecting mirror, and the light is ensured to be always on the corresponding reflecting mirror.
Further, the fan-shaped optical chamber 21 and the polygonal optical chamber 31 are both made of plastic materials, and the observation window 7 and the target window 8 are both made of transparent lenses; the first inclined side 25 in the fan-shaped optical chamber 21 and the second inclined side 35 in the polygonal optical chamber 31 are detachably designed, so that the mirrors in the chamber can be conveniently replaced and cleaned, and the installation angle of the mirrors can be conveniently changed.
Further, the observation window 7 is mounted at the clear aperture 22 of the first reflection module 1 at the light path outlet through a snap ring, the target window 8 is mounted at the clear aperture 33 of the fifth reflection module 5 at the light path inlet through a snap ring, and the sleeve structure 6 with the length larger than 10CM is coaxially mounted at the outer side of the observation window 7, so that not only the observation window 7 can be protected, but also the human eyes can clearly read the coordinate grid on the observation window 7.
The number of the single reflection modules in this embodiment, i.e. the first reflection module 1, the second reflection module 2, the fourth reflection module 4, the fifth reflection module 5 and the double reflection module in the first embodiment, i.e. the third reflection module 3 in the first embodiment, can be flexibly changed according to the verification requirement, so as to realize the verification of the spatial unwinding relation of the beam directors of different light paths.
The specific working procedure of this embodiment is as follows:
The first reflecting module 1, the second reflecting module 2, the fourth reflecting module 4 and the first reflecting mirror 24 in the fifth reflecting module 5 are fixed at an installation angle of 45 degrees, two reflecting mirrors in the third reflecting module 3 form an included angle of 67.5 degrees with two second side walls respectively, the positions of the cross wires of the target window 8 are calibrated, the cross wires sequentially pass through the first reflecting module 1, the second reflecting module 2, the fourth reflecting module 4 and the first reflecting mirror 24 and the third reflecting module 3 in the fifth reflecting module 5 to reflect, and the rotation angle of the cross wires read on the observation window 7 in a coordinate grid is 0, namely, the optical axis coincides with the rotation axis.
Then the first single reflection module 1 is rotated by the azimuth axis connection module 92, the dense scale is read to be p, the cross hair is sequentially reflected by the first single reflection module 1, the second single reflection module 2, the third reflection module 3, the fourth reflection module 4 and the fifth reflection module 5, and the rotation angle imaged by the cross hair is read to be alpha through the observation window 7; the fifth reflection module 5 is rotated by the pitching axis connection module 91, the dense scale is read as q, and the rotation angle imaged by the cross hair is read as beta through the observation window 7.
The relationship between the rotation angle (α, β) imaged by the cross hair and the rotation amount (p, q) of the beam director along the pitch and azimuth axes is:
Wherein A is a spatial de-rotation relation matrix, which characterizes the relation between the rotation angle (alpha, beta) imaged by the target and the rotation quantity (p, q) of the beam director, and the numerical values of (alpha, beta) and (p, q) can be obtained by the spatial de-rotation relation verification device provided by the invention, so that the above formula can deduce the spatial de-rotation relation matrix A.
Example two
The embodiment provides a verification device for the spatial unwinding relation of a beam director, which has the same structure as that of the first embodiment and is applied to verification of the 'circle drawing' error of the beam director. Similar to the above verification process of the spatial unwinding relationship, the installation angle of the mirror in the third reflection module 3 is changed to 42 ° so that the optical axis is not coincident with the rotation axis, the rotation amounts (p ', q') along the pitch axis and the azimuth axis are set, the rotation angle of the cross hair imaging obtained through the observation window 7 is (α ', β'), and the relational expression between the two is:
wherein B is an error matrix containing "rounding" errors, and the values of (alpha ', beta') and (p ', q') can be obtained relatively easily by the spatial de-rotation relationship verification device provided by the invention, so that the error matrix B can be deduced according to the formula.
Example III
The first embodiment provides a spatial unwinding verification device for a beam director, which comprises a reflection module, a fixed connection module, a movable connection module, an observation window and a target window, wherein the reflection module comprises 5 single reflection modules connected through the fixed connection module and the movable connection module, and the use process is similar to that of the first embodiment.
The device for verifying the spatial unwinding relation of the beam director can conveniently and intuitively demonstrate the spatial unwinding relation characteristic in the working process of the beam director, and provides a powerful tool for researchers to understand the basic principle of the beam director and design and develop a new beam director.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.