CN116719145B - Two-dimensional non-frame large-angle quick reflector - Google Patents
Two-dimensional non-frame large-angle quick reflector Download PDFInfo
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- CN116719145B CN116719145B CN202310995203.8A CN202310995203A CN116719145B CN 116719145 B CN116719145 B CN 116719145B CN 202310995203 A CN202310995203 A CN 202310995203A CN 116719145 B CN116719145 B CN 116719145B
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- 230000005540 biological transmission Effects 0.000 claims description 19
- 239000000523 sample Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 9
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 2
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 claims description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 10
- 230000004907 flux Effects 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/1821—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors for rotating or oscillating mirrors
Abstract
The invention relates to the technical field of laser guidance, in particular to a two-dimensional non-frame large-angle quick reflector, which comprises a quick reflector mirror surface, an electromagnetic driving assembly, a universal centripetal joint bearing, a supporting beam and a base; the support beam is arranged on the base and supports the universal centripetal joint bearing; the quick reflection mirror surface is arranged on the universal centripetal joint bearing; an electromagnetic driving space is formed between the supporting beam and the base, and the electromagnetic driving assembly is arranged in the electromagnetic driving space; the electromagnetic driving assembly comprises a coil assembly, a permanent magnet and a magnetic conduction assembly; the electromagnetic driving assembly drives the universal radial spherical bearing to rotate the fast reflecting mirror surface. The invention can avoid the problems of large space occupation of the frame structure in the plane direction of the reflector, easy shielding of light beams and the like by adopting the universal centripetal joint bearing as the rotation constraint of the reflector, and is more compact, flexible and high in performance.
Description
Technical Field
The invention relates to the technical field of laser guidance, in particular to a two-dimensional non-frame large-angle quick reflector.
Background
The fast control reflector is a device for realizing fast and accurate adjustment of the direction of a light beam by controlling the rotation of the reflector. It plays a key role in optical systems, and is particularly suitable for applications requiring fast response and high-precision positioning.
The application field of the quick reflection mirror is very wide. In the laser guidance system, the fast reflecting mirror can adjust the direction of the light beam in real time according to the change of the target position, so that the laser beam is ensured to be accurately irradiated on the target, and the guidance precision and effect are improved. In the photoelectric detection system, the quick reflection mirror can rapidly track the source of a photoelectric signal, and accurate observation and monitoring of a target are realized. In photoelectric countermeasure, the quick reflecting mirror can be used for real-time interference of the direction of the light beam and interference of the photoelectric system of an opponent. In addition, the quick reflection mirror is also widely applied to the fields of laser weapons, space detection, laser radars, laser communication and the like so as to realize the functions of precise tracking, stable aiming, stable imaging and the like of the system.
Quick reflection mirrors are required to have a series of important performance indexes in these application fields. First, it needs to have a high operating bandwidth, i.e., to be able to respond quickly to changes in the input signal. Meanwhile, the fast reflecting mirror also needs to have higher angular resolution and pointing precision, and can realize accurate beam control and positioning. In addition, the angular range of the quick reflection mirror is required to meet the system requirement, and the required angular range can be covered. Finally, the quick reflection mirror also needs to adapt to different environments and space conditions, has high environment adaptation capability, and can work normally under various complex conditions.
By adopting the quick reflection mirror instead of the conventional structure, the performance of the optical system can be significantly improved. The quick reflection mirror can realize faster response speed and more accurate beam control, and improves the stability and the accuracy of the system. At the same time, miniaturization and light weight of the quick reflection mirror are also beneficial to reducing the volume and weight of the system and increasing the flexibility and portability of the system.
The ultra-large angle fast mirror is usually in a frame type supporting structure in practical application, however, the structure often encounters a problem when the light beam is incident at 45 degrees, namely, the light beam is partially blocked due to the existence of the frame, and the blocking phenomenon is unfavorable for light beam transmission and imaging with high precision and high quality.
In addition to the beam blocking problem, the frame-type support structure has a limiting problem in that the size of the structure itself is generally larger than the size of the mirror, because the frame needs to provide sufficient space for support and driving mechanisms. Due to the large structural space requirements, the frame-type quick reflector is greatly limited in application.
Disclosure of Invention
The invention aims to provide a two-dimensional non-frame large-angle quick reflecting mirror, which is used for solving at least one technical problem, and can avoid the problems that a frame structure occupies a large space in the plane direction of a reflecting mirror, light beams are easy to block and the like by adopting a universal radial spherical bearing as the rotation constraint of the reflecting mirror.
Embodiments of the present invention are implemented as follows:
a two-dimensional non-frame large-angle quick reflector comprises a quick reflector mirror surface, an electromagnetic driving assembly, a universal centripetal joint bearing, a supporting beam and a base;
the support beam is arranged on the base and supports the universal radial spherical plain bearing;
the quick reflection mirror surface is arranged on the universal centripetal joint bearing;
an electromagnetic driving space is formed between the supporting beam and the base, and the electromagnetic driving assembly is arranged in the electromagnetic driving space;
and the electromagnetic driving assembly drives the universal centripetal joint bearing to enable the quick reflection mirror surface to rotate.
The universal centripetal joint bearing 6 is positioned under the quick reflection mirror surface 5, plays a role in rotation constraint, and solves the problems that the frame structure occupies a large space in the plane direction of the reflection mirror, and light beams are easy to block.
An electromagnetic driving space is formed between the supporting beam 7 and the base 9, the electromagnetic driving assembly is isolated from other components, interference and mutual influence are reduced, and the accuracy and stability of the system are improved.
In a preferred embodiment of the present invention, the electromagnetic driving assembly of the two-dimensional non-frame large-angle fast reflector includes a coil unit, a permanent magnet and a magnetic conduction assembly;
the coil unit adopts a hollow structure;
the magnetic conduction assembly adopts a hollow structure;
the coil unit and the magnetic conduction assembly are wound in a crossed mode;
the permanent magnet is arranged at the hollow part inside the magnetic conduction assembly and is positioned below the bottom layer of the coil unit.
The technical effects are as follows: greatly improves the heat dissipation capacity; the whole is light, the material is saved, and the cost is reduced; the arrangement of the whole electromagnetic driving assembly is more compact; the magnetic flux density is higher, and higher output and speed can be realized under the same condition.
In a preferred embodiment of the present invention, the electromagnetic driving assembly of the two-dimensional non-frame large-angle fast mirror includes two coil units;
the two coil units are alternately wound through hollowed-out parts;
the two coil units are arranged perpendicular to each other.
In a preferred embodiment of the present invention, the magnetic conduction assembly of the two-dimensional non-frame large-angle fast reflector includes a magnetic conduction main body and four magnetic conduction strips;
the magnetic conductive main body and the four magnetic conductive strips are fixedly connected or integrally formed;
the magnetic conduction main body is arranged at the hollow part inside the coil unit;
the four magnetic strips extend out of the coil units respectively, and each magnetic strip is located between two perpendicular coil units respectively.
In a preferred embodiment of the present invention, the coil unit of the two-dimensional non-frame wide-angle fast mirror includes a coil and a coil frame;
the coil adopts a hollowed-out structure;
the coil rack adopts a hollowed-out structure;
the coil is embedded in the hollow part inside the coil rack.
The technical effects are as follows: the coil is fixedly supported in the coil frame, and is wound by a machine, so that the efficiency is high and the filling rate is high.
In a preferred embodiment of the present invention, the universal centripetal joint bearing of the two-dimensional non-frame large-angle quick-reflecting mirror comprises an outer bearing and a centripetal ball bearing, wherein the outer bearing is mounted on the support beam, and the centripetal ball bearing is assembled inside the outer bearing.
In a preferred embodiment of the present invention, the support beam of the two-dimensional non-frame wide-angle fast mirror includes a plurality of beam strips;
the lower ends of a plurality of beam strips are arranged on the base;
the upper ends of the beam strips are connected into a whole, and the outer bearings are arranged at the upper ends of the beam strips.
The technical effects are as follows: the device is used for supporting the eddy current probe and the universal radial spherical plain bearing. The support beam can provide better support and stability, enhances the structural strength, is beneficial to reducing vibration and deformation, and ensures the stable movement of the fast reflecting mirror surface; the beam strips are designed to support, so that the weight distribution of the mirror surface of the quick-reflection mirror can be balanced, and the pressure of the quick-reflection mirror to other structures of the system in the electromagnetic driving process is reduced.
In a preferred embodiment of the present invention, the two-dimensional non-frame large-angle quick mirror further includes a mirror mounting assembly;
the mirror surface mounting assembly comprises a coil transmission piece and a radial ball transmission piece;
the coil transmission member is arranged on the coil frame, and the radial ball bearing is connected with the coil transmission member;
the radial ball transmission member is arranged at the lower end of the quick reflection mirror surface, and the radial ball bearing is connected with the radial ball transmission member.
In a preferred embodiment of the present invention, the two-dimensional non-frame large-angle fast reflecting mirror further includes an eddy current probe;
the eddy current probes are respectively arranged on one side of the supporting beam, which faces the mirror surface of the quick reflection mirror.
The technical effects are as follows: each group of eddy current probes performs differential measurement, and the measurement accuracy is improved, so that the influence of temperature drift and the like on the measurement result is reduced.
In a preferred embodiment of the present invention, the fast reflecting mirror surface of the two-dimensional non-frame large-angle fast reflecting mirror includes: be and/or Si and/or quartz and/or SiC and/or BK7 glass and/or Al 2 O 3 And/or MgF 2 One or more materials of (a) and (b);
gold or silver is coated on the surface of the quick reflection mirror;
the permanent magnet is made of samarium cobalt or neodymium iron boron materials.
The embodiment of the invention has the beneficial effects that:
the two-dimensional non-frame large-angle quick reflecting mirror adopts the universal centripetal joint bearing as the rotation constraint of the reflecting mirror, so that the problems that the frame structure occupies a large space in the plane direction of the reflecting mirror, light beams are easy to shade and the like are avoided.
The eddy current sensor assembly adopted by the invention adopts four eddy current probes 8 to measure in two directions, has a large measuring range and is adjustable, the angle measuring precision is improved, and the eddy current sensor assembly is suitable for the application of a quick response mirror for scanning compensation and can be suitable for occasions with constrained height space.
The invention adopts the moving-coil type bidirectional voice coil motor as the drive, can obtain a larger rotation angle range and a higher working bandwidth, and can not heat the reflecting mirror. The coil used by the moving-coil type bidirectional voice coil motor can be wound by a machine, so that the winding efficiency is high and the filling rate is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a two-dimensional non-frame wide angle fast mirror of the present invention;
FIG. 2 is a schematic diagram of an exploded structure of a 30-degree overall structure of the tilt axis side of the two-dimensional non-frame large-angle fast mirror of the present invention;
FIG. 3 is a schematic view of the structure of the universal radial bearing of the two-dimensional non-frame large-angle fast reflector of the present invention;
FIG. 4 is a schematic side view of a universal radial bearing of a two-dimensional non-frame large-angle fast mirror of the present invention;
FIG. 5 is a schematic illustration of the electromagnetic drive assembly structure (excluding the coil former) of the two-dimensional non-frame wide-angle fast mirror of the present invention;
FIG. 6 is a schematic diagram of the front cross-sectional structure of a two-dimensional non-frame large angle quick mirror of the present invention;
FIG. 7 is a schematic top view of a two-dimensional non-frame large angle fast mirror of the present invention;
FIG. 8 is a schematic diagram of a side view magnetic circuit structure of a two-dimensional non-frame large angle fast mirror of the present invention.
In the figure: 1-coil; 2-coil frames; 3-permanent magnets; 4-a magnetic conduction assembly; 5-a quick reflection mirror surface; 6-universal radial spherical plain bearing; 7-supporting beams; 8-; 9-a base; 10-an outer bearing; 11-radial ball bearings; 12-coil transmission member; 13-a radial ball transmission member; 14-a magnetic conductive main body; 15-magnetic conductive strips.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.
Referring to fig. 1 to 6, an embodiment of the present invention provides a two-dimensional non-frame large-angle fast mirror, which includes a fast mirror surface 5, an electromagnetic driving component, a universal centripetal joint bearing 6, a supporting beam 7 and a base 9; the supporting beam 7 is arranged on the base 9 and supports the universal centripetal joint bearing 6; the quick reflection mirror surface 5 is arranged on the universal centripetal joint bearing 6; an electromagnetic driving space is formed between the support beam 7 and the base 9, and an electromagnetic driving assembly is arranged in the electromagnetic driving space; the electromagnetic driving assembly drives the universal radial spherical bearing 6 to rotate the quick-reflecting mirror surface 5.
The universal centripetal joint bearing 6 is positioned under the quick reflection mirror surface 5, plays a role in rotation constraint, and solves the problems that the frame structure occupies a large space in the plane direction of the reflection mirror, and light beams are easy to block.
An electromagnetic driving space is formed between the supporting beam 7 and the base 9, the electromagnetic driving assembly is isolated from other components, interference and mutual influence are reduced, and the accuracy and stability of the system are improved.
As shown in fig. 1, 2 and 5, in the preferred embodiment of the present invention, the electromagnetic driving assembly of the two-dimensional non-frame large-angle fast mirror includes a coil unit, a permanent magnet 3 and a magnetic conductive assembly 4; the coil unit adopts a hollow structure; the magnetic conduction assembly 4 adopts a hollow structure; the coil unit and the magnetic conduction assembly 4 are wound in a crossed manner; the permanent magnet 3 is arranged at the hollow part inside the magnetic conduction assembly 4 and is positioned below the bottom layer of the coil unit; the permanent magnet 3 is arranged in a gap right above the bottom layer surface of the magnetic conduction assembly 4 and right below the bottom layer of the coil unit; the permanent magnets 3 are symmetrically arranged along the inner center of the magnetic conductive assembly 4.
The technical effects are as follows: greatly improves the heat dissipation capacity; the whole is light, the materials are saved, the cost is reduced, and the arrangement of the whole electromagnetic driving assembly is more compact; the magnetic flux density is higher, and higher output and speed can be realized under the same condition.
As shown in fig. 1, 2 and 5, in a preferred embodiment of the present invention, the electromagnetic driving assembly of the two-dimensional non-frame wide-angle fast mirror includes two coil units; the two coil units are alternately wound through hollowed-out parts; the two coil units are arranged perpendicular to each other.
As shown in fig. 1, 2 and 5, in the preferred embodiment of the present invention, the magnetic conduction assembly 4 of the two-dimensional non-frame large-angle fast reflector includes a magnetic conduction main body 14 and four magnetic conduction strips 15; the magnetic conductive main body 14 and the four magnetic conductive strips 15 are integrated; the magnetic conductive main body 14 is arranged at the hollow part inside the coil unit; the four magnetic strips 15 extend out of the coil units respectively, and each magnetic strip 15 is positioned between two perpendicular coil units respectively; the magnetic conduction assembly 4 is a double-layer regular sixteen-edge body.
As shown in fig. 1, 2 and 5, in a preferred embodiment of the present invention, the coil unit of the two-dimensional non-frame wide-angle fast mirror includes a coil 1 and a coil frame 2; the coil 1 adopts a hollow structure; the coil frame 2 adopts a hollowed-out structure; the coil 1 is embedded in the hollow part inside the coil frame 2.
The technical effects are as follows: the coil 1 is fixedly supported in the coil frame 2, and is wound by a machine, so that the efficiency is high and the filling rate is high.
In the preferred embodiment of the present invention, the universal radial spherical bearing 6 of the two-dimensional non-frame wide-angle quick mirror comprises an outer bearing 10 and a radial spherical bearing 11, wherein the outer bearing 10 is mounted on the support beam 7, and the radial spherical bearing 11 is assembled inside the outer bearing 10.
As shown in fig. 1 and 2, in the preferred embodiment of the present invention, the support beam 7 of the two-dimensional non-frame wide-angle fast mirror includes a plurality of beam strips; the lower ends of a plurality of beam strips are arranged on the base 9; the upper ends of the plurality of beam strips are connected into a whole, and the outer bearing 10 is arranged at the upper ends of the plurality of beam strips.
The technical effects are as follows: for supporting the eddy current probe 8 and the universal radial bearing 6. The supporting beam 7 can provide better support and stability, enhances the structural strength, is beneficial to reducing vibration and deformation, and ensures the stable movement of the quick-reflection mirror surface 5; the beam strips are designed to support, so that the weight distribution of the quick-reflection mirror surface 5 can be balanced, and the pressure of the quick-reflection mirror surface on other structures of the system in the electromagnetic driving process is reduced.
As shown in fig. 2 and 5, in a preferred embodiment of the present invention, the two-dimensional non-frame large-angle quick mirror further includes a mirror mounting assembly; the mirror mounting assembly comprises a coil transmission member 12 and a radial ball transmission member 13; the coil driving member 12 is mounted on the coil frame 2, and the radial ball bearing 11 is connected with the coil driving member 12; the centripetal ball transmission member 13 is arranged at the lower end of the quick reflection mirror surface 5, and the centripetal ball bearing 11 is connected with the centripetal ball transmission member 13.
As shown in fig. 1, 2 and 6, in the preferred embodiment of the present invention, the two-dimensional non-frame large-angle quick mirror further includes an eddy current probe 8; the eddy current probes 8 are respectively arranged on one side of the supporting beam 7 facing the fast reflection mirror surface 5; the beam strips are four and respectively support four eddy current probes 8. Four eddy current probes 8 are arranged in pairs into a group, and each group of eddy current probes 8 performs differential measurement.
The technical effects are as follows: each group of eddy current probes 8 performs differential measurement, and improves measurement accuracy, thereby reducing the influence of temperature drift and the like on measurement results.
In a preferred embodiment of the present invention, the two-dimensional non-frame wide-angle fast mirror 5 comprises: be and/or Si and/or quartz and/or SiC and/or BK7 glass and/or Al 2 O 3 And/or MgF 2 One or more materials of (a) and (b); the quick reflection mirror surface 5 is coated with gold or silver; alternatively, the fast reflecting mirror surface 5 adopts a dielectric Bragg mirror structure; the permanent magnet 3 is made of SmCo33EN 5300 or NdFeBNSOM.
These materials are merely examples and other materials may be used.
Referring to fig. 7 to 8, an embodiment of the present invention provides a magnetic circuit of a two-dimensional non-frame large-angle fast mirror, including:
in fig. 8, the upper end of the magnet is N pole, and the lower end is S pole. When the direction of the current introduced into the lower coil is clockwise, based on the lorentz force principle, judging that the stress direction of the coil is the negative direction of the Y axis in fig. 7 according to the left hand rule; when the direction of the current is clockwise, the stress direction of the coil is positive direction of the Y axis in FIG. 7. When the direction of the current introduced by the upper coil is clockwise, the stress direction of the coil is the negative direction of the X axis in FIG. 7; when the direction of the current is clockwise, the stress direction of the coil is positive direction of X axis in figure 7. The movable part of the two coils, namely the motor, drives the quick reflection mirror surface 5 to do two-dimensional deflection movement along the X axis and the Y axis together with the universal centripetal joint bearing 6, so that the magnetic flux density is higher, and higher output and higher speed can be realized under the same condition.
The embodiment of the invention aims to protect a two-dimensional non-frame large-angle quick reflector, which has the following effects:
1. the two-dimensional non-frame large-angle quick reflector adopts a back pushing type structural design, and the pushing force is innovatively applied to the back of the reflector, so that the structure is more compact and lighter. This greatly reduces the space occupied by the conventional frame structure and reduces the moment of inertia of the moving parts. By the back pushing type structural design, pushing force is directly applied to the back of the reflecting mirror, and a traditional supporting frame is not needed. The surface of the mirror is thus fully available for reflection of the light beam, without additional support structures, thereby reducing the volume and weight of the system. Meanwhile, the moving part in the back pushing structure is small in mass and relatively low in rotational inertia, so that the quick reflection mirror can respond to control signals more quickly, and high dynamic performance is achieved.
2. The invention adopts a bidirectional voice coil motor formed by high-performance electromagnetic driving components such as magnets, regular magnetic conduction components, coils and the like. The permanent magnets are symmetrically arranged along the center of the inside of the double-layer magnetic conduction assembly, so that the magnetic flux density of the whole electromagnetic driving structure is higher, and higher output force and speed can be realized under the same condition. Through arranging the permanent magnet, the permanent magnet forms a central symmetrical structure in the double-layer magnetic conduction assembly, so that magnetic flux lines densely pass through the driving assembly, and the electromagnetic driving assembly can more fully utilize magnetic field energy and provide stronger driving force. Due to the increase of magnetic flux density, the electromagnetic driving structure can generate higher output force under the condition of equal size and input power, and higher speed and dynamic response are realized.
3. The invention adopts the universal centripetal joint bearing as the rotation constraint of the reflector, and effectively solves the problems that the traditional frame structure occupies a large amount of space in the plane direction of the reflector, and light beams are easy to shade. The universal radial spherical plain bearing has excellent rotational freedom and high bearing capacity, can realize smooth rotational movement, and provides reliable and flexible rotation constraint for a quick-reflecting mirror system. The universal radial spherical plain bearing is adopted, so that the quick reflection mirror is free from the limitation of the traditional frame structure, the reflection mirror can realize a wide rotation range with smaller volume, and greater flexibility and freedom degree are provided. The structure not only reduces the volume and the weight of the optical system, but also reduces the inertia and the mechanical vibration of the system, and is beneficial to quick response and accurate control. The design provides higher flexibility, accuracy and performance advantages for the quick reflection mirror system, and promotes the development and application of the system in the fields of laser guidance, photoelectric investigation, photoelectric countermeasure, laser weapon, space detection, laser radar, laser communication and the like.
4. The two-dimensional non-frame large-angle quick reflector adopts a coil wound by a machine, and has the advantages of high efficiency and high filling rate. The machine winding technology can automatically wind coils, improves the production efficiency and consistency, and can meet the requirement of mass production. The coil winding process is more efficient through machine winding, the production period is greatly shortened, compared with manual winding, the winding task of the coil can be completed at a higher speed and with higher accuracy, the production efficiency is effectively improved, meanwhile, the consistency and stability of the coil can be realized, and the quality and performance of each coil are ensured to meet the specification requirements.
5. The two-dimensional non-frame large-angle quick reflecting mirror adopts the eddy current sensor assembly to carry out differential measurement by using 4 eddy current probes in two directions, thereby remarkably improving the measurement precision and reducing the influence of factors such as temperature drift on the measurement result. The eddy current probes in each direction are paired and measured differentially to eliminate interference of environmental factors and temperature variations on the measurement results. By adopting a differential measurement mode of 4 eddy current probes, the invention realizes higher measurement precision and stability. The differential measurement can effectively counteract the influence of environmental noise, electromagnetic interference, temperature change and other factors on the measurement result, and more reliable and accurate data are provided. The eddy current probes in each direction compensate each other, and common mode interference is eliminated by comparing difference signals, so that measurement errors are reduced, and the reliability and measurement accuracy of the system are improved. The eddy current sensor assembly for differential measurement can automatically compensate temperature change, eliminate the influence caused by temperature drift and ensure the accuracy and stability of a measurement result.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and are in no way limiting of the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (9)
1. The two-dimensional non-frame large-angle quick reflector is characterized by comprising a quick reflector mirror surface (5), an electromagnetic driving assembly, a universal centripetal joint bearing (6), a supporting beam (7) and a base (9);
the supporting beam (7) is arranged on the base (9) and supports the universal centripetal joint bearing (6);
the quick reflection mirror surface (5) is arranged on the universal radial joint bearing (6);
an electromagnetic driving space is formed between the supporting beam (7) and the base (9), and the electromagnetic driving assembly is arranged in the electromagnetic driving space;
the electromagnetic driving assembly drives the universal centripetal joint bearing (6) to enable the quick reflection mirror surface (5) to rotate;
the electromagnetic driving assembly comprises a coil unit, a permanent magnet (3) and a magnetic conduction assembly (4);
the coil unit adopts a hollow structure;
the magnetic conduction assembly (4) adopts a hollowed-out structure;
the coil unit and the magnetic conduction assembly (4) are wound in a crossed mode;
the permanent magnet (3) is arranged at the hollow part inside the magnetic conduction assembly (4) and is positioned below the bottom layer of the coil unit.
2. The two-dimensional non-frame wide-angle quick mirror according to claim 1, wherein,
the electromagnetic drive assembly comprises two coil units;
the two coil units are alternately wound through hollowed-out parts;
the two coil units are arranged perpendicular to each other.
3. The two-dimensional non-frame wide-angle quick mirror according to claim 2, wherein,
the magnetic conduction assembly (4) comprises a magnetic conduction main body (14) and four magnetic conduction strips (15);
the magnetic conductive main body (14) and the four magnetic conductive strips (15) are fixedly connected or integrally formed;
the magnetic conduction main body (14) is arranged at the hollow part inside the coil unit;
the four magnetic strips (15) extend out of the coil units respectively, and each magnetic strip (15) is located between two perpendicular coil units respectively.
4. The two-dimensional non-frame wide-angle quick mirror according to claim 1, wherein,
the coil unit comprises a coil (1) and a coil frame (2);
the coil (1) adopts a hollowed-out structure;
the coil rack (2) adopts a hollowed-out structure;
the coil (1) is embedded in the hollow part inside the coil frame (2).
5. The two-dimensional non-frame wide-angle quick mirror according to claim 1, wherein,
the universal radial spherical bearing (6) comprises an outer bearing (10) and a radial spherical bearing (11), the outer bearing (10) is mounted on the supporting beam (7), and the radial spherical bearing (11) is assembled inside the outer bearing (10).
6. The two-dimensional non-frame wide-angle quick mirror according to claim 5, wherein,
the support beam (7) comprises a plurality of beam strips;
the lower ends of a plurality of beam strips are arranged on the base (9);
the upper ends of the beam strips are connected into a whole, and the outer bearings (10) are arranged at the upper ends of the beam strips.
7. The two-dimensional, non-frame, wide-angle quick mirror according to any one of claims 5-6, further comprising: a mirror mounting assembly;
the mirror mounting assembly comprises a coil transmission member (12) and a radial ball transmission member (13);
the coil transmission member (12) is arranged on the coil frame (2), and the radial ball bearing (11) is connected with the coil transmission member (12);
the radial ball transmission member (13) is arranged at the lower end of the quick reflection mirror surface (5), and the radial ball bearing (11) is connected with the radial ball transmission member (13).
8. The two-dimensional, non-frame, wide-angle quick mirror according to any one of claims 1-6, further comprising: an eddy current probe (8);
the eddy current probes (8) are respectively arranged on one side of the supporting beam (7) facing the quick reflection mirror surface (5).
9. The two-dimensional non-frame wide-angle quick mirror according to any of claims 1-6, wherein,
the quick reflection mirror surface (5) comprises: be and/or Si and/or quartz and/or SiC and/or BK7 glass and/or Al 2 O 3 And/or MgF 2 One or more materials of (a) and (b);
the fast reflecting mirror surface (5) is coated with gold or silver;
the permanent magnet (3) is made of samarium cobalt or neodymium iron boron materials.
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| CN202310995203.8A CN116719145B (en) | 2023-08-09 | 2023-08-09 | Two-dimensional non-frame large-angle quick reflector |
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Address after: Building 1, 3rd Floor, Hefei Luyang Big Data Industrial Park, No. 868 Qinghe Road, Luyang District, Hefei City, Anhui Province, 230041 Patentee after: Anhui Ruikongxin Optoelectronic Technology Co.,Ltd. Guo jiahuodiqu after: Zhong Guo Address before: 100085 1006, 1st floor, lin831-nei1, Changping Road, Anning North Road, Haidian District, Beijing Patentee before: Beijing ruikongxin Technology Co.,Ltd. Guo jiahuodiqu before: Zhong Guo |