CN108693516A - A kind of device and method of quick measurement laser ranging system performance - Google Patents
A kind of device and method of quick measurement laser ranging system performance Download PDFInfo
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- CN108693516A CN108693516A CN201810945377.2A CN201810945377A CN108693516A CN 108693516 A CN108693516 A CN 108693516A CN 201810945377 A CN201810945377 A CN 201810945377A CN 108693516 A CN108693516 A CN 108693516A
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- 230000003111 delayed effect Effects 0.000 claims abstract description 21
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- 239000000835 fiber Substances 0.000 claims abstract description 13
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/497—Means for monitoring or calibrating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
Abstract
The invention discloses a kind of device and methods of quick measurement laser ranging system performance, the invention utilizes the light splitting function of color separation film, color separation film both sides are fixed to by graticle and laser fiber end-face with groove are equidistant, the laser that delayed echo generator assembly generates is emitted by parallel light tube to tested equipment by optical fiber, the beacon light source of optical fiber output is placed in focal surface of collimator tube simultaneously as instruction light, laser ranging system performance is quickly measured to realize.The device and method can be used for the detection of laser beam divergence, light spot energy and laser ranging system range capability in laser ranging system, it may also be used for calibration is detected the optical axis deviation of equipment laser transmitting-receiving.The device and method of the invention is also applied for the real-time calibration of various laser ranging system performances, is also applied for the main electro-optical system passively combined and receives and dispatches with fields such as shaft detections, system focal plane module is fixed, calibrating method is simple, cheap for this.
Description
Technical field
The invention belongs to technical field of optical detection more particularly to a kind of devices of quick measurement laser ranging system performance
And method, it is especially suitable for the laser ranging system that is made of sighting device and laser emitting module, laser pick-off module
The electro-optical system that the quick testing requirement in outfield, various laser masters passively combine is received and dispatched with fields such as shaft detections.
Background technology
Laser ranging system has become the important component of all arms of ground force observation and aiming device now;Such as armoured unit
Main battle tank, mechanized infantry combat vehicle various gun commander surely as gun sight, vehicle commander's panoramic sight, survey and take aim at guidance instrument etc., laser
Range-measurement system allow to realize search observation, object ranging, azimuthal measurement one kind quickly, accurately, easily sophisticated equipment;
Due to being the technologies such as light harvesting, electricity, sensor in integrated, complicated, failure rate is higher.Especially current high intensity actual combatization is instructed
In white silk, laser ranging system once breaks down, it will influences the purpose of operation of commander.Due to cannot unitized solution step
The Measuring error problem of island portion team laser ranging system is kept in soldier, artilleryman, armored force and coast defence, causes detection to maintain unit type numerous
It is more, have a single function, funds resource is more, ensures that the low problem of efficiency is difficult to solve for a long time.To solve these problems, pass through integrated side
All indexs of method unified measurement will be increasingly required.For laser ranging system detection technique and means present situation, there is an urgent need to
Research the meet ground force all arms general with indoor universal, individual soldier and vehicle-mounted general, army grade and Base Level can swash in the wild
A kind of generalization performance detection technology and means of ligh-ranging system;Certain branch can be provided for army material support power construction
Support.For laser optical apparatus, optical axis registration is one of key technical index of instrument, and the variation of optical axis will directly affect
Detection to system is horizontal, and the raising of the expansion and application demand with various optical instrument application ranges, to optical instrument
Stability, the requirement of optical axis registration accuracy it is also higher and higher, also the ground calibration of optical instrument and performance test are proposed
Higher requirement.The detectivity index of laser remote sensing system mainly include system range accuracy, investigative range (maximum ranging distance,
Minimum ranging), resolution of ranging and detection probability (false alarm rate, false dismissed rate).And the variation of optical axis registration will directly influence
The detectivity of system this requires that can have the instrument of standard or equipment that can test it, and calibrates variation feelings in time
Condition.
Invention content
The object of the present invention is to provide a kind of device and methods of quick measurement laser ranging system performance.The invention utilizes
The light splitting function of color separation film, the graticle with groove is equidistant fixed to color separation film both sides with laser fiber end-face, lead to
Optical fiber is crossed to emit the laser that delayed echo generator assembly generates to tested equipment, while in parallel light tube by parallel light tube
Focal plane places the beacon light source of optical fiber output as instruction light.The system can be used for the diverging of the laser in laser ranging system
The detection at angle, light spot energy and laser ranging system range capability, it may also be used for calibration is detected the optical axis of equipment laser transmitting-receiving
Deviation.The invention is suitable for the real-time calibration of various laser ranging system performances, is also applied for the main electro-optical system passively combined
Transmitting-receiving is with fields such as shaft detections, and system focal plane module is fixed, calibrating method is simple, cheap for this.
The detection device of the method for the present invention is as shown in Fig. 1:The invention device should be by optical fiber output beacon light source 1, color separation
Piece 2, laser energy can control attenuating device 3, delay echo gecerator component 4, attenuating device 5, lighting device 6, carry groove
Graticle 7, detection camera 8, light splitting piece 9, parallel light tube 10, corner reflector 12 form.Wherein optical fiber output beacon light source 1
Fiber end face, 4 the output optical fiber end face of delay echo gecerator component, the graticle 7 with groove are placed in parallel light tube 10
Focal plane at, first turn on optical fiber output beacon light source 1, beacon light source by after color separation film 2, light splitting piece 9 through parallel light tube 10
Collimation output, output light aim at measured laser range-measurement system 11;Measured laser range-measurement system 11 is aligned using sighting device 11-1
Optical fiber output beacon light source 1, opens the laser in measured laser range-measurement system 11, which converges at band by parallel light tube 10
Have on the graticle 7 of groove, opens lighting device 6 and illuminate the graticle 7 with groove, using attenuating device 5 by laser energy
Control is in proper strength, by detecting the laser facula size on graticle 7 of the observation of camera 8 with groove, the laser facula
Size and 10 focal length of parallel light tube ratio, that is, measured laser range-measurement system 11 laser beam divergence;Utilize the echo that is delayed
Scattering laser pulse signal on graticle 7 of the acquisition of device assembly 4 with groove, the delay echo generated by pulse signal is through prolonging
When the 4 the output optical fiber end face transmitting of echo gecerator component, collimate and export by parallel light tube 10, pass through measured laser range-measurement system
Whether 11 laser pick-off module 11-3 detects signal to judge whether transmitting-receiving coaxially keeps good, while can pass through laser
Energy-controllable attenuating device 3 controls output signal size, to simulating measured laser range-measurement system 11 to different distance
Range capability.
The corner reflector 12 is positioned over measured laser range-measurement system position and carries out self-test to measuring device.
The optical fiber output beacon light source 1 is using the laser of 532nm, output power 2.5mw.
The color separation film 2 reflects 532nm, is transmitted to the laser of measured laser range-measurement system;Light pass surface surface form deviation
The@of RMS value λ/10 632.8nm.
The light splitting piece 9 reflects optical fiber output beacon light source 1, to the laser half anti-half of measured laser range-measurement system
Thoroughly, splitting ratio is between 4:6 and 6:Between 4, the light pass surface surface form deviation RMS value@of λ/10 632.8nm.
The delayed echo generator assembly 4 is by high speed detector 4-1, delayed echo generator 4-2 and controllable light
Fine output laser 4-3 compositions;Wherein high speed detector 4-1 is wide using respective wavelength range;Delayed echo generator 4-2 can be with
Beam shaping and delay pulse time are carried out, the outgoing of optical fiber output laser 4-3 and measured laser range-measurement system (11) are controlled
The wavelength of laser, pulse match.
The lighting source spectral region of the lighting device 6 needs the detection wavelength of part covering detection camera 8.
The rear cut-off distance of the parallel light tube 10 is more than the appearance and size of the focal plane module with beacon beam.
Steps are as follows for its specific method:
1 places a standard parallel light source, wavelength and the measured laser wavelength of source of parallel light first before parallel light tube 10
It is identical, then the graticle 7 with groove is fixed near the focal plane of parallel light tube 10, is carried using the detection observation of camera 8
The position of imaging facula size on the graticle 7 of groove, graticle 7 of the adjustment with groove so that hot spot is minimum, and fixation carries
The graticle 7 of groove.
2 are added light splitting piece 9 before the graticle 7 with groove, and incident light is classified into two beams, and transmission channels are with groove
It is imaged on differentiation plate 7, reflection channel will will produce another focus, in the near focal point constant time lag echo gecerator component 4
Middle light lead optical fiber, the output optical fibre using delay echo gecerator component 4 emit laser, optical maser wavelength and measured laser wavelength phase
Together, before corner reflector 12 being positioned over parallel light tube 10, then before the light-coming out optical fiber end face of adjustment delay echo gecerator component 4
Position afterwards is adjusted to no matter corner reflector 12 is placed on any position of transmissive parallel light pipe, with the light at groove graticle
Until spot is motionless, the output optical fibre of constant time lag echo gecerator component 4.
3 before the echo gecerator component 4 that is delayed bonus point color chips 2, reflection channel focal point place optical fiber output beacon
The output optical fibre of light source 1, optical fiber output beacon light source 1 converge at standard after color separation film 2, light splitting piece 9 and parallel light tube 10
At focal surface of collimator tube, the fiber end face position of optical fiber output beacon light source 1 is adjusted, it is made to be imaged in the parallel light tube of the standard
Hot spot is minimum, while the laser facula sent out with delay echo gecerator component 4 overlaps, and finally fixes optical fiber output beacon light source
1 fiber end face.
4 open optical fiber output beacon light source 1, beacon beam coarse alignment measured laser ranging system after the collimation of parallel light tube 10
System 11, adjusts its orientation, pitch angle using the sighting device 11-1 of measured laser range-measurement system 11, makes optical fiber output beacon
Light source 1 images in the centers sighting device 11-1 of system under test (SUT) 11 by the beacon beam that parallel light tube 10 collimates, and closes beacon beam.
5 graticles 7 with groove illuminated using lighting device 6, by the sighting system 11-1 and band of system under test (SUT) 11
There is the crosshair of the graticle 7 of groove to be aligned, open the laser in measured laser range-measurement system 11, light is measured with detection camera 8
The relative position of spot and 7 crosshair of graticle with groove, the position difference of hot spot and crosshair represent measured laser
The optical axis deviation of sighting device 11-1 and laser emitting module 11-2 in range-measurement system 11;
After graticle 7 of 6 illuminated with laser light with groove, partial dispersion pulsed light is detected by high speed detector 4-1, with this
Signal is initial pulse, and control laser sends out identical pulse light after generating delayed echo using delayed echo generator 4-2, should
Pulsed light is by the fiber exit of controllable optical fiber output laser 4-3, and emergent light is after parallel light tube collimates through tested sharp
Laser pick-off module 11-3 detections in ligh-ranging system 11, the reception by observing laser pick-off module 11-3 respond to judge
Whether the transmitting-receiving optical axis of measured laser range-measurement system 11 is registrated.
7 can control attenuating device 3 by laser energy surveys to simulate the laser energy of different location to observe measured laser
Responding ability away from system 11.
By testing above, sighting system, laser transmitting system, laser in measured laser range-measurement system 11 can be obtained and connect
The alignment of receipts system;The beam quality of laser transmitting system;The test scope etc. of laser receiver system.
The characteristics of invention, is mainly reflected in:
1) self checking method of the invention it is simple, it is of low cost, be suitable for field work.
2) invention can spreadability test range-measurement system functional parameter.
3) the quick optical axis that may be implemented of the invention is aligned, easy to operation.
Description of the drawings
Fig. 1 is the schematic diagram of the invention.
Fig. 2 is the workflow schematic diagram of the invention.
Specific implementation mode
The embodiment of the method for the present invention is described in detail below in conjunction with attached drawing.
Main devices employed in the present invention are described as follows:
1) optical fiber output beacon light source 1:Using the green (light) laser of Changchun NPD projects, laser model LFM520 is defeated
Go out power 2.5mw.
2) color separation film 2:Use Thorlabs company models for FGB25 color separation films, Specifeca tion speeification:Using 532nm
It is all-trans, 1064 half-reflection and half-transmissions, clear aperature Φ 25mm, face type is better than the@of λ/10 632.8nm.
3) laser energy can control attenuating device 3:Use Thorlabs company models for NDC-25C-4, extinction efficiency is from 0
~(- 40) db, bore Φ 25mm
4) delayed echo generator assembly 4:The equipment is home-built equipment, is mainly sent out by high speed detector 4-1, delayed echo
Raw device 4-2 and controllable optical fiber output laser 4-3 compositions, after high speed detector 4-1 detects pulse signal, using postponing back
Wave producer 4-2 postpones analog echo signal between generating centainly, to trigger the laser light extraction of optical fiber output laser 4-3,
To generate the laser signal to the echo that is delayed;
5) attenuating device 5:Use Thorlabs company models for NDC-50C-4, extinction efficiency is from 0~-40dB, total thang-kng
Bore is Φ 50mm;
6) lighting device 6:Using the broad spectrum light source of prosperous four standing grain photoelectricity company of Shenzhen, power 2W.
7) graticle 7 of groove is carried:Using Chengdu credit spectroscopic optics Products Co., Ltd, customization differentiation plate.
8) camera 8 is detected:Use U.S.'s Spiricon company models for the laser beam analyzer of SP620, main performance ginseng
Number:Service band 190nm-1100nm, pixel size 4.4um*4.4um, number of pixels 1600*1200;
9) light splitting piece 9:Use Thorlabs company models for FGL1000 light splitting pieces, Specifeca tion speeification:Using
532nm is all-trans, 1064 full impregnateds, clear aperature 25mm.Face type is better than the@of λ/10 632.8nm
10) parallel light tube 10:Using the transmission-type parallel light tube of common process, aperture of mirror of looking in the distance is 300mm, and telescope is burnt
Away from for 2m, face type requires RMS to be better than 1/20 λ@632.8nm.
11) corner reflector 12:Use Thorlabs company models for the prism of corner cube of PS971, Specifeca tion speeification:Thoroughly
Smooth surface surface face type is better than the@of λ/10 632.8nm;Rotating accuracy is less than 3 ", clear aperture 25.4mm, transparency range 400-
1100。
In specific implementation mode, the schematic diagram of apparatus of the present invention is as shown in Figure 1, be as follows
1 places a standard parallel light source, wavelength and the measured laser wavelength of source of parallel light first before parallel light tube 10
It is identical, then the graticle 7 with groove is fixed near the focal plane of parallel light tube 10, is carried using the detection observation of camera 8
The position of imaging facula size on the graticle 7 of groove, graticle 7 of the adjustment with groove so that hot spot is minimum, and fixation carries
The graticle 7 of groove.
2 are added light splitting piece 9 before the graticle 7 with groove, and incident light is classified into two beams, and transmission channels are with groove
It is imaged on differentiation plate 7, reflection channel will will produce another focus, in the near focal point constant time lag echo gecerator component 4
Middle light lead optical fiber, the output optical fibre using delay echo gecerator component 4 emit laser, optical maser wavelength and measured laser wavelength phase
Together, before corner reflector 12 being positioned over parallel light tube 10, then before the light-coming out optical fiber end face of adjustment delay echo gecerator component 4
Position afterwards is adjusted to no matter corner reflector 12 is placed on any position of transmissive parallel light pipe, with the light at groove graticle
Until spot is motionless, the output optical fibre of constant time lag echo gecerator component 4.
3 before the echo gecerator component 4 that is delayed bonus point color chips 2, reflection channel focal point place optical fiber output beacon
The output optical fibre of light source 1, optical fiber output beacon light source 1 converge at standard after color separation film 2, light splitting piece 9 and parallel light tube 10
At focal surface of collimator tube, the fiber end face position of optical fiber output beacon light source 1 is adjusted, it is made to be imaged in the parallel light tube of the standard
Hot spot is minimum, while the laser facula sent out with delay echo gecerator component 4 overlaps, and finally fixes optical fiber output beacon light source
1 fiber end face.
4 open optical fiber output beacon light source 1, beacon beam coarse alignment measured laser ranging system after the collimation of parallel light tube 10
System 11, adjusts its orientation, pitch angle using the sighting device 11-1 of measured laser range-measurement system 11, makes optical fiber output beacon
Light source 1 images in the centers sighting device 11-1 of system under test (SUT) 11 by the beacon beam that parallel light tube 10 collimates, and closes beacon beam.
6 graticles 7 with groove illuminated using lighting device 6, by the sighting system of measured laser range-measurement system 11
11-1 is aligned with the crosshair of the graticle 7 with groove, opens the laser in measured laser range-measurement system 11, with detection camera
8 measure the relative position of hot spot and 7 crosshair of graticle with groove, the position difference of hot spot and crosshair represents
The optical axis deviation of sighting device 11-1 and laser emitting module 11-2 in measured laser range-measurement system 11;
After graticle 7 of 7 illuminated with laser light with groove, partial dispersion pulsed light is detected by high speed detector 4-1, with this
Signal is initial pulse, and control laser sends out identical pulse light after generating delayed echo using delayed echo generator 4-2, should
Pulsed light is by the fiber exit of controllable optical fiber output laser 4-3, and emergent light is after parallel light tube collimates through tested sharp
Laser pick-off module 11-3 detections in ligh-ranging system 11, the reception by observing laser pick-off module 11-3 respond to judge
Whether the transmitting-receiving optical axis of measured laser range-measurement system 11 is registrated.
8 can control attenuating device 3 by laser energy surveys to simulate the laser energy of different location to observe measured laser
Responding ability away from system 11.
By testing above, sighting device 11-1 in measured laser range-measurement system 11, laser emitting module 11- can be obtained
2, the optical axis matching between laser pick-off module 11-3;The laser beam quality of laser emitting module 11-2 can be detected simultaneously
And the finding range etc. of laser pick-off module 11-3.
Claims (8)
1. a kind of device of quick measurement laser ranging system performance, including optical fiber output beacon light source (1), color separation film (2), swash
Light energy can control attenuating device (3), delay echo gecerator component (4), attenuating device (5), lighting device (6), carry and carve
Graticle (7), detection camera (8), light splitting piece (9), parallel light tube (10) and the corner reflector (12) of line, it is characterised in that:
The fiber end face of optical fiber output beacon light source (1), carries groove at delay echo gecerator component (4) the output optical fiber end face
Graticle (7) be placed at the focal plane of parallel light tube (10), first turn on optical fiber output beacon light source (1), beacon light source
It is collimated and is exported by parallel light tube (10) by color separation film (2) and light splitting piece (9), output light aims at measured laser range-measurement system;
Measured laser range-measurement system is opened in measured laser range-measurement system and is swashed using sighting device alignment optical fiber output beacon light source (1)
The laser of optical transmitter module, the laser are converged at by parallel light tube (10) on the graticle (7) with groove, open illumination dress
The crosshair that (6) illuminate the graticle (7) with groove is set, realizes that the continuously adjustable of energy will swash using attenuating device (5)
Light energy control is in proper strength, by detecting the laser facula size on graticle (7) of camera (8) observation with groove,
The laser beam divergence of the size of the laser facula and the ratio, that is, measured laser range-measurement system of parallel light tube (10) focal length;Using prolonging
When echo gecerator component (4) acquire with groove graticle (7) on scattering laser pulse signal, generated by pulse signal
Delay echo through be delayed echo gecerator component (4) the output optical fiber end face transmitting, by parallel light tube (10) collimate export, lead to
Whether the laser pick-off module (11-3) for crossing measured laser range-measurement system (11) detects signal to judge whether transmitting-receiving is coaxially protected
Hold it is good, while attenuating device (3) can be can control by laser energy realize energy it is continuously adjustable by control output
Signal magnitude, to simulate range capability of the measured laser range-measurement system to different distance;
The corner reflector (12) is positioned over measured laser range-measurement system position and carries out self-test to measuring device.
2. a kind of device of quick measurement laser ranging system performance according to claim 1, it is characterised in that:Described
Optical fiber output beacon light source (1) uses the laser of 532nm, output power 2.5mw.
3. a kind of device of quick measurement laser ranging system performance according to claim 1, it is characterised in that:Described
Color separation film (2) reflects 532nm, is transmitted to the laser of measured laser range-measurement system;Light pass surface surface form deviation RMS value λ/10@
632.8nm。
4. a kind of device of quick measurement laser ranging system performance according to claim 1, it is characterised in that:Described
Light splitting piece (9) reflects optical fiber output beacon light source (1), and to the laser half-reflection and half-transmission of measured laser range-measurement system, splitting ratio is situated between
In 4:6 and 6:Between 4, the light pass surface surface form deviation RMS value@of λ/10 632.8nm.
5. a kind of device of quick measurement laser ranging system performance according to claim 1, it is characterised in that:Described
Delayed echo generator assembly (4) is swashed by high speed detector (4-1), delayed echo generator (4-2) and controllable optical fiber output
Light device (4-3) forms;Wherein high speed detector (4-1) is wide using respective wavelength range;Delayed echo generator (4-2) can be into
Row beam shaping and delay pulse time, the outgoing of control optical fiber output laser (4-3) and measured laser range-measurement system (11)
The wavelength of laser, pulse match.
6. a kind of device of quick measurement laser ranging system performance according to claim 1, it is characterised in that:It is described
Lighting device (6) lighting source spectral region need part covering detection camera (8) detection wavelength.
7. a kind of device of quick measurement laser ranging system performance according to claim 1, it is characterised in that:Described
The rear cut-off distance of parallel light tube (10) is more than the appearance and size of the focal plane module with beacon beam.
8. a kind of based on a kind of laser ranging system of the device of quick measurement laser ranging system performance described in claim 1
Performance measurement method, it is characterised in that method and step is as follows:
1) a standard parallel light source, wavelength and the measured laser wavelength phase of source of parallel light are placed before parallel light tube (10) first
Together, then the graticle (7) with groove is fixed near the focal plane of parallel light tube (10), is observed using detection camera (8)
The position of imaging facula size on graticle (7) with groove, graticle (7) of the adjustment with groove so that hot spot is minimum,
The fixed graticle (7) with groove;
2) light splitting piece (9) is added before the graticle (7) with groove, incident light is classified into two beams, and transmission channels are with quarter
It is imaged on line differentiation plate (7), reflection channel will will produce another focus, in the near focal point constant time lag echo gecerator group
Light lead optical fiber in part (4) emits laser using the output optical fibre of delay echo gecerator component (4), and optical maser wavelength swashs with tested
Optical wavelength is identical, before corner reflector (12) is positioned over parallel light tube (10), then adjusts delay echo gecerator component (4)
Light-coming out optical fiber end face front and back position is adjusted to no matter corner reflector (12) is placed on any position of transmissive parallel light pipe, with
Until hot spot at groove graticle is motionless, the output optical fibre of constant time lag echo gecerator component (4);
3) add a color separation film (2) before delay echo gecerator component (4), optical fiber output is placed in the focal point of reflection channel
The output optical fibre of beacon light source (1), optical fiber output beacon light source (1) pass through color separation film (2), light splitting piece (9) and parallel light tube
(10) after, converge at standard parallel light pipe focal plane, adjust optical fiber output beacon light source (1) fiber end face position, make its
The parallel light tube imaging facula of the standard is minimum, while the laser facula sent out with delay echo gecerator component (4) overlaps, most
The fiber end face of optical fiber output beacon light source (1) is fixed afterwards;
4) optical fiber output beacon light source (1), beacon beam coarse alignment measured laser ranging after parallel light tube (10) collimation are opened
System (11) adjusts its orientation, pitch angle using the sighting device (11-1) of measured laser range-measurement system (11), makes optical fiber
Output beacon light source (1) images in the sighting device (11-1) of system under test (SUT) (11) by the beacon beam of parallel light tube (10) collimation
Beacon beam is closed at center;
5) graticle (7) with groove for utilizing lighting device (6) to illuminate, by the sighting system (11-1) of system under test (SUT) (11)
It is aligned with the crosshair of the graticle (7) with groove, opens the laser in measured laser range-measurement system (11), with detection camera
(8) relative position of hot spot and graticle (7) crosshair with groove, the position difference of hot spot and crosshair, i.e. generation are measured
The optical axis deviation of sighting device (11-1) and laser emitting module (11-2) in table measured laser range-measurement system (11);
6) after graticle (7) of the illuminated with laser light with groove, partial dispersion pulsed light is detected by high speed detector (4-1), with
The signal is initial pulse, and control laser sends out identical pulse after generating delayed echo using delayed echo generator (4-2)
Light, the pulsed light pass through the fiber exit that can control optical fiber output laser (4-3), and emergent light passes through after parallel light tube collimates
Laser pick-off module (11-3) detection in measured laser range-measurement system (11), by observing connecing for laser pick-off module (11-3)
Response is received to judge whether the transmitting-receiving optical axis of measured laser range-measurement system (11) is registrated;
7) attenuating device (3) can control by laser energy and observes measured laser ranging to simulate the laser energy of different location
The responding ability of system (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810945377.2A CN108693516B (en) | 2018-08-20 | 2018-08-20 | Device and method for rapidly measuring performance of laser ranging system |
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| CN201810945377.2A CN108693516B (en) | 2018-08-20 | 2018-08-20 | Device and method for rapidly measuring performance of laser ranging system |
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| CN113162690A (en) * | 2021-06-01 | 2021-07-23 | 中国科学院微小卫星创新研究院 | Space laser communication detection device and method |
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