CN118856999B - Handheld dynamic laser simulation device and method - Google Patents
Handheld dynamic laser simulation device and method Download PDFInfo
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- CN118856999B CN118856999B CN202411345082.3A CN202411345082A CN118856999B CN 118856999 B CN118856999 B CN 118856999B CN 202411345082 A CN202411345082 A CN 202411345082A CN 118856999 B CN118856999 B CN 118856999B
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- 238000004088 simulation Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 239000013307 optical fiber Substances 0.000 claims description 36
- 210000003128 head Anatomy 0.000 claims description 32
- 239000000835 fiber Substances 0.000 claims description 10
- 210000001747 pupil Anatomy 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 230000005693 optoelectronics Effects 0.000 claims 6
- 230000001360 synchronised effect Effects 0.000 abstract description 18
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 13
- 238000013016 damping Methods 0.000 description 5
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G3/00—Aiming or laying means
- F41G3/32—Devices for testing or checking
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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
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
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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
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
- G02B26/023—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light comprising movable attenuating elements, e.g. neutral density filters
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
- G09B9/003—Simulators for teaching or training purposes for military purposes and tactics
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Engineering & Computer Science (AREA)
- Laser Beam Processing (AREA)
Abstract
本发明提供了一种手持式动态激光模拟装置及方法，涉及激光模拟技术领域，装置包括准直镜组、从动齿轮、可变光阑、第一轴系、第一衰减片、第二轴系、第二衰减片、同步带轮以及同步带，紧凑式的光学设计方式使装置体积小且重量轻，便于在激光导引头初期阶段进行测试，同步带轮的传动方式使第一衰减片和第二衰减片在转动过程中始终处于同步转动，衰减倍率精度增高，使激光模拟输出信号更加准确可靠，从动齿轮带动可变光阑上的光阑杆转动实现光阑口径的大小变化，模拟由远至近的光斑，解决了现有技术中测试成本高，测试过程涉及的各项条件难度较大，以及测试准备时间长等缺点。
The present invention provides a handheld dynamic laser simulation device and method, which relate to the field of laser simulation technology. The device comprises a collimating lens group, a driven gear, a variable aperture, a first shaft system, a first attenuation plate, a second shaft system, a second attenuation plate, a synchronous pulley and a synchronous belt. The compact optical design makes the device small in size and light in weight, which is convenient for testing in the early stage of a laser guide head. The transmission mode of the synchronous pulley makes the first attenuation plate and the second attenuation plate always rotate synchronously during the rotation process, and the attenuation ratio accuracy is improved, so that the laser simulation output signal is more accurate and reliable. The driven gear drives the aperture rod on the variable aperture to rotate to realize the change of the aperture diameter, and simulates the light spot from far to near, which solves the shortcomings of the prior art such as high testing cost, high difficulty of various conditions involved in the testing process, and long test preparation time.
Description
Technical Field
The invention relates to the technical field of laser simulation, in particular to a handheld dynamic laser simulation device and method.
Background
At present, in the technical field of laser guidance, a laser guide head is rapidly developed, along with the rapid development of scientific technology, the high-precision and low-cost laser guide head becomes a main research direction of industry development, and meanwhile, the laser guide head has the advantages of high striking precision, strong anti-interference capability, small volume, light weight and the like, and aiming at the requirements and the characteristics of the laser guide head, a high-precision, convenient and flexible test environment, namely a laser semi-physical simulation device is required to be introduced to test the performance of the laser guide head. The laser simulator module projects the diffuse reflection facula simulated by the laser simulator module to the entrance pupil of the optical system of the five-axis turntable, and the two-axis movement outside the five-axis turntable drives the laser simulator to move, so that the laser seeker servo platform stably tracks the facula energy center to complete the test of semi-physical simulation, but in the research and development stage, the test needs a flexible and convenient method to modify the laser seeker program at any time, obviously the five-axis turntable has the defects of high cost, high difficulty of various conditions related in the test process, long test preparation time and the like.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects in the prior art, so as to provide a hand-held dynamic laser simulation device and a method.
The utility model provides a hand-held type dynamic laser analogue means, hand-held type dynamic laser analogue means includes the collimating lens group, iris subassembly and the attenuation subassembly that transversely connects gradually, the below of attenuation subassembly is provided with fiber laser, iris subassembly includes iris, braced frame and driven gear, the iris is installed on driven gear, driven gear installs on braced frame, driven gear is connected with first power device's power take off end, the attenuation subassembly includes first shafting, second axis and main frame, first shafting and second axis are all installed on main frame, braced frame and main frame connect, install first attenuator on the first shafting, install the second attenuator on the second axis, first shafting and second axis's power input end all are provided with synchronous pulley, install the hold-in range on the synchronous pulley, the second axis is connected with second power device's power take off end.
Further, the collimating lens group comprises a lens cone and an adapter flange, one end of the lens cone is connected with one end of the adapter flange, a lens pressing ring, a lens spacing ring and a lens are transversely and sequentially arranged in the other end of the lens cone, the other end of the adapter flange is connected with a supporting frame, the lens cone is connected with the adapter flange through a plurality of screws, and an adjusting washer is further arranged at the joint of the lens cone and the adapter flange.
Further, the working wavelength of the collimating lens group is 1064nm plus or minus 5nm, the aperture of the exit pupil of the collimating lens group is 100mm, the viewing angle of the collimating lens group is plus or minus 0.43 degrees, the focal length of the collimating lens group is 300mm, the working wavelength of the fiber laser is 1064nm, and the pulse width of the optical pulse of the fiber laser is 15ns.
Further, the iris assembly further comprises a diaphragm installation shafting, a beam homogenizing lens group and a beam expanding lens group, wherein the diaphragm installation shafting, the beam homogenizing lens group and the beam expanding lens group are all installed on the supporting frame, the iris is installed in the diaphragm installation shafting, and the supporting frame, the diaphragm installation shafting, the beam homogenizing lens group and the beam expanding lens group are located on the same axis.
Further, the first power device is a first driving motor, the iris diaphragm assembly further comprises a driving gear, the power output end of the first driving motor is connected with the driving gear, and the driving gear is meshed with the driven gear.
Further, the iris assembly further comprises a first photoelectric switch seat and a first photoelectric switch, the first photoelectric switch seats arranged in pairs are installed on the driven gear, the first photoelectric switches arranged in pairs are installed on the supporting frame, and the first photoelectric switch seats correspond to the first photoelectric switch in position.
Further, the attenuation component further comprises an optical fiber head, the optical fiber head is mounted on the main frame, the optical fiber head is connected with the optical fiber laser through an optical fiber lead, the second power device is a second driving motor, and the power output end of the second driving motor is connected with a second shaft system.
Further, the attenuation component further comprises a second photoelectric switch seat and a second photoelectric switch, the second photoelectric switch seat is installed on the first shaft system, the second photoelectric switch is installed on the main frame, and the positions of the second photoelectric switch seat and the second photoelectric switch correspond to each other.
Further, the hand-held dynamic laser simulation device further comprises a handle and an outer cover, the outer cover is arranged outside the iris diaphragm assembly and the attenuation assembly, the fiber laser is arranged inside the outer cover, the adapter flange is connected with the outer cover, and the handle arranged in pairs is arranged outside the outer cover.
The invention also comprises a dynamic laser simulation method, which is realized based on the hand-held dynamic laser simulation device described in any one of the above, wherein the optical fiber laser emits a laser light source, then the laser light source is transmitted to the optical fiber head through the optical fiber lead, the laser light source exits from the optical fiber head, then the laser light source enters the first attenuation sheet and the second attenuation sheet, the laser light source enters the beam expanding lens group after exiting from the first attenuation sheet and the second attenuation sheet, the beam of the laser light source is expanded through the beam expanding lens group, the laser light source passes through the central hole of the iris diaphragm, the spot size of the laser light source is changed by changing the size of the central hole of the iris diaphragm, and then the laser light source exits through the collimating lens group.
The technical scheme of the invention has the following advantages:
1. The hand-held dynamic laser simulator provided by the invention adopts a compact optical design mode, is small in size and light in weight, is convenient for testing in the initial stage of the laser guide head, provides a laser target beam with certain energy and variable light spot size for the laser guide head, checks the tracking performance of the guide head, adopts a transmission mode of a synchronous pulley, enables the first attenuation sheet and the second attenuation sheet to synchronously rotate all the time in the rotating process, increases the attenuation rate precision, avoids attenuation rate errors caused by shafting rotation errors, enables a laser simulation output signal to be more accurate and reliable, and further enables a driven gear to drive an iris diaphragm to rotate, so that diaphragm rods on the iris diaphragm rotate to realize the size change of the aperture, simulates light spots from far to near, and is equivalent to the fact that the laser guide head sees a target at infinity.
2. In the technical scheme provided by the invention, the optical fiber laser provides a laser source for semi-physical simulation of the seeker, and after being attenuated by the first attenuation sheet and the second attenuation sheet, the optical fiber laser is expanded by the beam expanding lens group and enters the seeker, so that the optical fiber laser has the characteristics of short adjustment time and large output energy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a collimating lens group according to the present invention;
FIG. 3 is a side view of the iris assembly of the invention;
FIG. 4 is a front view of the iris assembly of the invention;
fig. 5 is a schematic structural view of an attenuation module according to the present invention.
Reference numerals illustrate:
The laser attenuator comprises a 1-collimating lens group, a 1-1-lens pressing ring, a 1-2-lens spacing ring, a 1-3-lens, a 1-4-lens barrel, a 1-5-screw, a 1-6-adjusting washer, a 1-7-adapting flange, a 2-handle, a 2-1-diaphragm mounting shafting, a 2-2-iris diaphragm, a 2-3-first driving motor, a 2-4-homogenizing lens group, a 2-5-supporting frame, a 2-6-driving gear, a 2-7-first photoelectric switch seat, a 2-8-driven gear, a 2-9-first photoelectric switch, a 2-10-beam expanding lens group, a 3-housing, a 3-1-first attenuation sheet, a 3-2-first shafting, a 3-3-optical fiber head, a 3-4-second shafting, a 3-5-second attenuation sheet, a 3-6-main frame, a 3-7-synchronous pulley, a 3-8-second driving motor, a 3-9-second photoelectric switch seat, a 3-10-second photoelectric switch seat, a 2-9-second photoelectric switch assembly and a 4-iris diaphragm assembly.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. 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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The hand-held dynamic laser simulation device as shown in figures 1, 3, 4 and 5 comprises a collimating lens group 1, an iris diaphragm assembly 4 and an attenuation assembly 5 which are transversely and sequentially connected, wherein an optical fiber laser 6 is arranged below the attenuation assembly 5, the iris diaphragm assembly 4 comprises an iris diaphragm 2-2, a supporting frame 2-5 and a driven gear 2-8, the iris diaphragm 2-2 is arranged on the driven gear 2-8, the driven gear 2-8 is arranged on the supporting frame 2-5, the driven gear 2-8 is connected with the power output end of a first power device, the attenuation assembly 5 comprises a first shafting 3-2, a second shafting 3-4 and a main frame 3-6, the first shafting 3-2 and the second shafting 3-4 are arranged in reserved matching holes on the main frame 3-6, the supporting frame 2-5 is connected with the main frame 3-6, the first shafting 3-2 is provided with a first damping sheet 3-1, the second shafting 3-4 is provided with a second damping sheet 3-5, the power input ends of the first shafting 3-2 and the second shafting 3-4 are respectively provided with a synchronous pulley 3-7, the synchronous pulleys 3-7 are provided with a synchronous belt, one end of the second shafting 3-4 far away from the second damping sheet 3-5 is connected with the power output end of a second power device, the collimating lens group 1, the iris diaphragm assembly 4 and the damping assembly 5 are assembled and regulated in a component level, after the assembly and regulation are completed, the collimating lens group 1, the iris diaphragm assembly 4 and the damping assembly 5 are positioned by adopting mechanical rabbets, the model of the synchronous pulleys 3-7 is GPA18GT3090-A-P5, the model of the synchronous belt is GBN1473GT-90, and the synchronous belt is connected with two synchronous pulleys 3-7 at the same time.
The hand-held dynamic laser simulation device adopts a compact optical design mode, is small in size and light in weight, is convenient to test in the initial stage of the laser guide head, provides a laser target beam with certain energy and variable spot size for the laser guide head, checks the tracking performance of the guide head, adopts the synchronous pulley 3-7 to drive, enables the first attenuation sheet 3-1 and the second attenuation sheet 3-5 to synchronously rotate all the time in the rotating process, enables the attenuation rate precision to be increased, avoids attenuation rate errors caused by shafting rotation errors, enables a laser simulation output signal to be more accurate and reliable, and in addition, the driven gear 2-8 drives the iris diaphragm 2-2 to rotate, further enables a diaphragm rod on the iris diaphragm 2-2 to rotate to realize the size change of the aperture, simulates a far-to-near spot to be equivalent to the target of the laser guide head, controls the optical fiber laser 6 to emit a laser source according to the requirement of ballistic simulation, adjusts the target spot size and energy change all the time, and controls the optical fiber laser 6 and the energy simulation device to enable the iris diaphragm to dynamically execute instructions according to the dynamic touch screen on the dynamic simulation device.
As shown in fig. 1-3, in this embodiment, the collimating lens group 1 includes a lens barrel 1-4 and an adapter flange 1-7, one end of the lens barrel 1-4 is connected with one end of the adapter flange 1-7, a lens pressing ring 1-1, a lens spacer ring 1-2 and a lens 1-3 are transversely and sequentially arranged in the other end of the lens barrel 1-4, the other end of the adapter flange 1-7 is connected with a supporting frame 2-5, the lens barrel 1-4 and the adapter flange 1-7 are connected through a plurality of screws 1-5, an adjusting washer 1-6 is further arranged at the joint of the lens barrel 1-4 and the adapter flange 1-7, gaskets are arranged at the relative positions of the lenses in the collimating lens group 1, so that the lens barrel 1-4 and the adapter flange 1-7 are conveniently assembled, the lens barrel and the adapter flange 1-7 are connected through a plurality of screws 1-5 in a flange spigot mode, the butt joint installation precision between the parts is guaranteed, and the flange fixing mode is beneficial to guaranteeing the coaxial requirement of the whole optical path, and simultaneously, the axial spacing requirement of the adjusting washer 1-6 is met through the method of adding the adjusting washer 1-6 in the adjustment process through the thickness adjustment of the lens.
As shown in fig. 1, in this embodiment, the working wavelength of the collimating lens group 1 is 1064nm±5nm, the exit pupil aperture of the collimating lens group 1 is 100mm, the viewing angle of the collimating lens group 1 is ±0.43°, the focal length of the collimating lens group 1 is 300mm, the laser beam passes through the collimating lens group 1 to perform beam shaping, and then output as parallel light, the working wavelength of the fiber laser 6 is 1064nm, and the pulse width of the optical pulse of the fiber laser 6 is 15ns.
As shown in fig. 1 and 3, in this embodiment, the variable diaphragm assembly 4 further includes a diaphragm installation shafting 2-1, a beam-homogenizing lens group 2-4 and a beam-expanding lens group 2-10, the diaphragm installation shafting 2-1, the beam-homogenizing lens group 2-4 and the beam-expanding lens group 2-10 are all installed on a supporting frame 2-5, the variable diaphragm 2-2 is installed inside the diaphragm installation shafting 2-1, the supporting frame 2-5 and the diaphragm installation shafting 2-1, the beam-homogenizing lens group 2-4 and the beam-expanding lens group 2-10 are located on the same axis, in the installation process, firstly the variable diaphragm 2-2 is installed inside the diaphragm installation shafting 2-1 and then integrally installed on a spigot of the supporting frame 2-5, and the supporting frame 2-5 is finish-machined with coaxial spigots which are respectively installed coaxially with the beam-homogenizing lens group 2-4, the diaphragm installation shafting 2-1 and the beam-expanding lens group 2-10, so that the coaxial installation of the beam-homogenizing lens group 2-10 and the diaphragm shafting 2-1 can be ensured, and the coaxial installation of the diaphragm shafting 2-1 can be ensured, and the optical axis can be further coaxially abutted when the optical axes are ensured.
As shown in fig. 1,3 and 4, in this embodiment, the first power device is a first driving motor 2-3, the iris assembly 4 further includes a driving gear 2-6, the power output end of the first driving motor 2-3 is connected with the driving gear 2-6, the driving gear 2-6 is meshed with a driven gear 2-8, when the spindle of the first driving motor 2-3 rotates, the driving gear 2-6 is driven to rotate, and then the driven gear 2-8 is driven to rotate, so that the iris 2-2 and the diaphragm rods on the iris 2-2 rotate, the aperture of the iris 2-2 is changed continuously within the range of 0-20 mm, and by changing the aperture of the iris 2-2, the central hole of the iris 2-2 is also changed, so that the simulation of light spots from far to near is realized, and the laser guide head is equivalent to the goal of being able to see infinity.
As shown in fig. 1, 3 and 4, in this embodiment, the iris assembly 4 further includes a first photoelectric switch seat 2-7 and a first photoelectric switch 2-9, the first photoelectric switch seat 2-7 arranged in pairs is mounted on the driven gear 2-8, the first photoelectric switch 2-9 arranged in pairs is mounted on the supporting frame 2-5, the first photoelectric switch seat 2-7 corresponds to the first photoelectric switch 2-9 in position, and when the first photoelectric switch seat 2-7 enters a photosensitive area in the middle of the first photoelectric switch 2-9, the first photoelectric switch 2-9 sends a signal to stop the rotation of the first driving motor 2-3, so as to fulfill the purpose of electrical limitation.
As shown in fig. 1 and 5, in this embodiment, the attenuation component 5 further includes an optical fiber head 3-3, the optical fiber head 3-3 is mounted on a main frame 3-6, the optical fiber head 3-3 is connected with an optical fiber laser 6 through an optical fiber wire, the second power device is a second driving motor 3-8, a power output end of the second driving motor 3-8 is connected with a second axis system 3-4, a main shaft of the second driving motor 3-8 is rigidly connected with the second axis system 3-4, when the main shaft of the second driving motor 3-8 rotates, the second axis system 3-4 is driven to rotate, and then a synchronous pulley 3-7 on the second axis system 3-4 is driven to rotate, and then the motion is transmitted to the synchronous pulley 3-7 on the first axis system 3-2 through a synchronous belt, so that the synchronous rotation of the first attenuation sheet 3-1 and the second attenuation sheet 3-5 is realized.
As shown in fig. 1 and 5, in this embodiment, the attenuation component 5 further includes a second photoelectric switch seat 3-9 and a second photoelectric switch 3-10, the second photoelectric switch seat 3-9 is mounted on the first shafting 3-2, the second photoelectric switch 3-10 is mounted on the main frame 3-6, the positions of the second photoelectric switch seat 3-9 and the second photoelectric switch 3-10 correspond to each other, and when the second photoelectric switch seat 3-9 enters a photosensitive area in the middle of the second photoelectric switch 3-10, the second photoelectric switch seat 3-9 sends out a signal to stop the rotation of the second driving motor 3-8, thereby completing the purpose of electric limiting.
As shown in fig. 1 and 2, in this embodiment, the hand-held dynamic laser simulator further includes a handle 2 and a housing 3, the housing 3 is disposed outside the iris assembly 4 and the attenuation assembly 5, the fiber laser 6 is disposed inside the housing 3, the adapter flanges 1-7 are connected with the housing 3, the handle 2 disposed in pairs is mounted outside the housing 3, the housing 3 serves as a main frame and a skin of the whole device, and plays a role in supporting and protecting internal light paths and parts, and the handle 2 enables the device to be carried and held conveniently.
As shown in fig. 1, fig. 2, fig. 3 and fig. 5, the present invention further includes a dynamic laser simulation method, which is implemented based on a hand-held dynamic laser simulation device as described in any one of the above, the optical fiber laser 6 provides a semi-physical simulation laser source for the guidance head, the optical fiber laser 6 emits a laser source, then the laser source is transmitted to the optical fiber head 3-3 through an optical fiber wire, the laser source emits from the optical fiber head 3-3, then the laser source enters the first attenuation plate 3-1 and the second attenuation plate 3-5, the laser energy is attenuated by the first attenuation plate 3-1 and the second attenuation plate 3-5, and becomes the laser energy meeting the requirements received by the guidance head, the laser source enters the beam expansion lens set 2-10 after the laser source emits the laser beam through the beam expansion lens set 2-10, and simultaneously the laser source passes through the central hole of the variable diaphragm 2-2, and then the laser beam enters the collimating lens set 1 after the laser beam enters the collimating lens 1 through the variable diaphragm 2-2, and then the collimating lens set 1 is collimated by the collimating lens 1.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (9)
1. The hand-held dynamic laser simulation device is characterized by comprising a collimating lens group (1), an iris diaphragm assembly (4) and an attenuation assembly (5) which are transversely and sequentially connected, wherein an optical fiber laser (6) is arranged below the attenuation assembly (5), the iris diaphragm assembly (4) comprises an iris diaphragm (2-2), a supporting frame (2-5) and a driven gear (2-8), the iris diaphragm (2-2) is arranged on the driven gear (2-8), the driven gear (2-8) is arranged on the supporting frame (2-5), the driven gear (2-8) is connected with a power output end of a first power device, the attenuation assembly (5) comprises a first shafting (3-2), a second shafting (3-4) and a main frame (3-6), the first shafting (3-2) and the second shafting (3-4) are respectively arranged on the main frame (3-6), the supporting frame (2-5) is connected with the main frame (3-6), the first shafting (3-2) is provided with a second shafting (3-4), the second shafting (3-5) is arranged on the first shafting (3-4), the variable diaphragm assembly (4) further comprises a diaphragm mounting shaft system (2-1), a beam homogenizing lens group (2-4) and a beam expanding lens group (2-10), the diaphragm mounting shaft system (2-1), the beam homogenizing lens group (2-4) and the beam expanding lens group (2-10) are all mounted on a supporting frame (2-5), the variable diaphragm (2-2) is mounted inside the diaphragm mounting shaft system (2-1), and the supporting frame (2-5) is located on the same axis with the diaphragm mounting shaft system (2-1), the beam homogenizing lens group (2-4) and the beam expanding lens group (2-10).
2. The hand-held dynamic laser simulation device according to claim 1, wherein the collimating lens group (1) comprises a lens barrel (1-4) and an adapter flange (1-7), one end of the lens barrel (1-4) is connected with one end of the adapter flange (1-7), a lens pressing ring (1-1), a lens spacer ring (1-2) and a lens (1-3) are transversely arranged in the lens barrel (1-4) at the other end in sequence, the other end of the adapter flange (1-7) is connected with a supporting frame (2-5), the lens barrel (1-4) is connected with the adapter flange (1-7) through a plurality of screws (1-5), and an adjusting washer (1-6) is further arranged at the joint of the lens barrel (1-4) and the adapter flange (1-7).
3. The hand-held dynamic laser simulation device according to claim 1, wherein the working wavelength of the collimating lens group (1) is 1064nm plus or minus 5nm, the exit pupil aperture of the collimating lens group (1) is 100mm, the view angle of the collimating lens group (1) is plus or minus 0.43 degrees, the focal length of the collimating lens group (1) is 300mm, the working wavelength of the fiber laser (6) is 1064nm, and the pulse width of the optical pulse of the fiber laser (6) is 15ns.
4. A hand-held dynamic laser simulator according to claim 1, wherein the first power device is a first driving motor (2-3), the iris assembly (4) further comprises a driving gear (2-6), the power output end of the first driving motor (2-3) is connected with the driving gear (2-6), and the driving gear (2-6) is meshed with the driven gear (2-8).
5. A hand-held dynamic laser simulator according to claim 1, wherein the iris assembly (4) further comprises a first photoelectric switch holder (2-7) and a first photoelectric switch (2-9), the first photoelectric switch holders (2-7) arranged in pairs are mounted on the driven gear (2-8), the first photoelectric switches (2-9) arranged in pairs are mounted on the support frame (2-5), and the first photoelectric switch holders (2-7) correspond to the first photoelectric switches (2-9) in position.
6. A hand-held dynamic laser simulator according to claim 1, wherein the attenuator assembly (5) further comprises an optical fiber head (3-3), the optical fiber head (3-3) is mounted on the main frame (3-6), the optical fiber head (3-3) is connected with the optical fiber laser (6) through an optical fiber wire, the second power device is a second driving motor (3-8), and the power output end of the second driving motor (3-8) is connected with the second shaft system (3-4).
7. A hand-held dynamic laser simulator according to claim 1, wherein the attenuator assembly (5) further comprises a second opto-electronic switch holder (3-9) and a second opto-electronic switch (3-10), the second opto-electronic switch holder (3-9) being mounted on the first shafting (3-2), the second opto-electronic switch (3-10) being mounted on the main frame (3-6), the second opto-electronic switch holder (3-9) and the second opto-electronic switch (3-10) being in position correspondence.
8. A hand-held dynamic laser simulator according to claim 2, characterized in that the hand-held dynamic laser simulator further comprises a handle (2) and a housing (3), the housing (3) is arranged outside the iris assembly (4) and the attenuation assembly (5), the fiber laser (6) is arranged inside the housing (3), the adapter flanges (1-7) are connected with the housing (3), and the handles (2) arranged in pairs are arranged outside the housing (3).
9. A dynamic laser simulation method, which is realized based on the hand-held dynamic laser simulation device according to any one of claims 1-8, and is characterized in that an optical fiber laser (6) emits a laser light source, then the laser light source is transmitted to an optical fiber head (3-3) through an optical fiber lead, the laser light source is emitted from the optical fiber head (3-3), then the laser light source is incident to a first attenuation sheet (3-1) and a second attenuation sheet (3-5), the laser light source is emitted from the first attenuation sheet (3-1) and the second attenuation sheet (3-5) and then is incident to a beam expansion lens group (2-10), after the beam expansion lens group (2-10) expands the laser light source, the laser light source passes through a central hole of an iris diaphragm (2-2), the spot size of the laser light source is changed by changing the central hole size of the iris diaphragm (2-2), and then the laser light source passes through a collimating lens group (1).
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| CN112665459A (en) * | 2020-12-30 | 2021-04-16 | 哈尔滨新光光电科技股份有限公司 | Miniaturized multi-target laser simulator |
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| CN106153295A (en) * | 2015-04-16 | 2016-11-23 | 上海机电工程研究所 | A kind of HWIL simulation Larger Dynamic energy infrared target analog systems |
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