CN108051182A - A kind of laser subsystem integral test system - Google Patents
A kind of laser subsystem integral test system Download PDFInfo
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- CN108051182A CN108051182A CN201711086757.7A CN201711086757A CN108051182A CN 108051182 A CN108051182 A CN 108051182A CN 201711086757 A CN201711086757 A CN 201711086757A CN 108051182 A CN108051182 A CN 108051182A
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- laser
- power
- test system
- target
- switch board
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
Abstract
The invention discloses a kind of laser subsystem integral test systems, including switch board, operate display platform, power-measuring device and optical table, the switch board, operate display platform, power-measuring device is arranged at optical table upper surface, the power-measuring device and operation display platform are arranged in parallel in the one side of switch board, large-caliber off-axis parabolic reflector formula parallel light tube is disposed with inside the switch board, simulate ranging device and plain shaft precision measuring device, the heavy caliber parallel light tube beam exit collimation≤5 ", effective optics bore is Φ 300mm.Laser subsystem integral test system provided by the invention can simulate ranging and measurement plain shaft precision, solve the problems, such as that the current single accuracy of detection of laser testing functions of the equipments is low, substantially increase the test regulation and control efficiency of laser subsystem.
Description
Technical field
The present invention relates to technical field of optical test, more particularly to a kind of laser subsystem integral test system.
Background technology
The correlation performance parameters, it is necessary to component are irradiated in the production of the laser assemblies such as aiming in laser, including laser
The performance characteristics of light beam in itself, such as the concentricity of the angle of divergence energy of light beam and pulsewidth laser beam axis and transmitting antenna optical axis,
And the concentricity of the deviation, transmitting optical axis of reference for installation with receiving optical axis etc. is tested, convenient for the auxiliary of laser assembly
Assembling also needs to offline test the overall performance of component simultaneously, and existing laser parameter detector is for each parameter
Independent measurement, the laser parameter functional test platform of neither one synthesis, the precision and efficiency not only measured is low, but also measures ginseng
Number is not complete, these factors, which have become, restricts the neck bottle that laser product development laser pointing system performance improves, therefore needs to develop
High precision technology index and the comprehensive detection system of requirement.
The content of the invention
To overcome the above-mentioned problems in the prior art, the present invention provides a kind of welding auxiliary based on photoelectric measurement
Position indicator.
Specific technical solution is as follows：
A kind of laser subsystem integral test system, including switch board, operation display platform, power-measuring device and optics
Platform, the switch board, operation display platform, power-measuring device are arranged at optical table upper surface, the power measurement
Device and operation display platform are arranged in parallel in the one side of switch board, and large-caliber off-axis throwing is disposed with inside the switch board
Object plane reflective parallel light pipe, simulation ranging device and plain shaft precision measuring device, the light beam of the heavy caliber parallel light tube go out
Penetrate collimation≤5 ", effective optics bore is Φ 300mm.
Preferably, the large-caliber off-axis parabolic reflector formula parallel light tube is all band parallel light tube, including setting successively
Off-axis parabolic mirror, refractive power speculum and the target put.
Preferably, target switch guide is further included, the target switch guide is connected with target, and the target switch guide includes
Two-dimentional servo guide rail and be successively set on above two-dimentional servo guide rail view finding instruction laser, 1064nm simulated lasers point light source,
Band illuminates visible auto-collimation graticle and laser target.
Preferably, the appearance and size of the off-axis parabolic mirror is Φ 320mmX45mm (uniform thickness), and female parabola is burnt
Away from for 2500mm ± 5%, face shape error is λ λ=0.6328 μm of RMS≤1/20), surface coating reflectivity >=90% (operating wave
Section).
Preferably, the simulation ranging device include optical trap, photodetector, high speed flip flop, Precision delayer,
1064nm simulated lasers light source and parallel light tube, the optical trap is for laser of the collection from product transmitting, the detection
Device is arranged in optical trap, and the high speed flip flop, Precision delayer and 1064nm simulated laser light sources are sequentially connected.
Preferably, the power-measuring device includes focusing optical lens, diaphragm, speculum group, power meter, shell and shifting
Dynamic guide rail, the shell are arranged on moving guide rail, and the one side of the shell is provided with opening, and the focusing optical lens are set
In opening, the diaphragm is arranged on outside focusing optical lens, and the arrangement of mirrors power meter is oppositely arranged inside the shell
Portion.
The present invention has the advantages that compared with prior art：
The present invention provides a kind of laser subsystem integral test systems, are surveyed including switch board, operation display platform, power
Device and optical table are measured, large-caliber off-axis parabolic reflector formula parallel light tube, simulation ranging are disposed with inside switch board
Device and plain shaft precision measuring device, the present invention solve the problems, such as that laser testing functions of the equipments are single, accuracy of detection is low, optimization
Optical system for testing, reduces the quantity and cost of test equipment, improves cost performance.
Description of the drawings
Fig. 1 is a kind of system block diagram of laser subsystem integral test system of the present invention；
Fig. 2 is a kind of front view of laser subsystem integral test system of the present invention；
Fig. 3 is a kind of side view of laser subsystem integral test system of the present invention；
Fig. 4 is a kind of laser subsystem integral test system Large diameter off-axis parabolic collimator of the present invention
Structure diagram；
Fig. 5 is the structure diagram of target switch guide in a kind of laser subsystem integral test system of the present invention；
Fig. 6 is the fundamental diagram of ranging simulator in a kind of laser subsystem integral test system of the present invention；
Fig. 7 is the structure diagram of ranging simulator in a kind of laser subsystem integral test system of the present invention；
Fig. 8 is the composition frame chart of simulated laser light source in a kind of laser subsystem integral test system of the present invention；
Fig. 9 is the functional block diagram of Precision delayer in a kind of laser subsystem integral test system of the present invention；
Figure 10 is the fundamental diagram of optical axis means for correcting in a kind of laser subsystem integral test system of the present invention；
Figure 11 is plain shaft precision measuring device fundamental diagram in a kind of laser subsystem integral test system of the present invention；
Figure 12 is the structure diagram of power detection device in a kind of laser subsystem integral test system of the present invention；
Figure 13 is control system block diagram in a kind of laser subsystem integral test system of the present invention.
In figure, 1- large-caliber off-axis parabolic reflector formula parallel light tubes, 2- simulation ranging devices, 3- plain shaft precisions measurement dress
It puts, 4- benchmark, 5- operation display platforms, 6- power-measuring devices, 7- switch boards, 8- optical tables, 9- photodetectors, 10-
Optical axis deviation image acquiring sensor, 11- off-axis parabolic mirrors, 12- switch guides, 13- targets, 14- triggers,
15- delayers, 16- analog light sources, 17- target surface Image Acquisition plain shaft parallelism measuring systems, 18- optical traps, 19- refractive powers are anti-
Penetrate mirror, 20- graticles, 21- laser targets, 22- two dimension servo guide rails, 23-1064nm point light sources, 24- view findings instruction laser, 25-
Target surface image collecting device, 26- correction speculums, 27- visible light sources, 28- laser attenuation devices, 29- focusing optical lens,
30- diaphragms, 31- speculum groups, 32- power meters, 33- shells, 34- moving guide rails
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not form limitation of the invention.It is in addition, disclosed below
The each embodiment of the present invention in involved technical characteristic can be combined with each other as long as they do not conflict with each other.
The invention discloses a kind of laser subsystem integral test system, as shown in Figure 1,2 and 3, including switch board 7, behaviour
Make display platform 5, power-measuring device 6 and optical table 8, switch board 7, operation display platform 5, power-measuring device 6 are all provided with
It puts in 8 upper surface of optical table, power-measuring device 6 is arranged in parallel in the one side of switch board 7, control with operation display platform 5
Large-caliber off-axis parabolic reflector formula parallel light tube 1, simulation ranging device 2 and plain shaft precision measurement are disposed with inside cabinet 7
Device 3.
As shown in figure 4, large-caliber off-axis parabolic reflector formula parallel light tube 1 is all band parallel light tube, including setting successively
Off-axis parabolic mirror 11, refractive power speculum 19 and the target 13 put.Large-caliber off-axis parabolic reflector formula parallel light tube 1
It is the common component for simulating ranging device 2 and plain shaft precision measuring device 3, by off-axis parabolic mirror 11, refractive power speculum
19th, target 13 etc. and the composition all band parallel light tube such as structural member, large-caliber off-axis parabolic reflector formula parallel light tube 1 is except guarantor
It demonstrate,proves outside 11 face shape machining accuracy of off-axis parabolic mirror, when installation has to pass through fine adjustment, just can guarantee outgoing beam
The technical requirements such as aberration, light beam beam divergence angle.Target plate switch guide 12 accurately switches target under the control of servomotor
13.Refractive power speculum 19 is the volume for reducing entire test equipment in order to fold light path.Target switch guide 12 is further included, target is cut
It changes guide rail 12 with target 13 to be connected, target switch guide 12 includes two-dimentional servo guide rail 22 and is successively set on two-dimentional servo guide rail
View finding instruction laser 24,1064nm simulated lasers point light source 23, the band of 22 tops illuminate visible auto-collimation graticle 20 and laser
Target 21.It is provided with illuminating visible auto-collimation graticle 20, laser target 21,1064nm simulated lasers point light in target switch guide 12
Source 23, view finding instruction laser 24, under the driving of servomotor, are accurately switched.Wherein, the light beam of heavy caliber parallel light tube
It is emitted collimation≤5 ", effective optics bore is Φ 300mm, and the appearance and size of off-axis parabolic mirror 11 is Φ
320mmX45mm (uniform thickness), female parabola focal length are 2500mm ± 5%, and face shape error is the λ (λ=0.6328 μm) of RMS≤1/20,
Surface coating reflectivity >=90% (service band).
As shown in Figures 6 and 7, simulating ranging device 2 includes optical trap 18, photodetector 9, high speed flip flop 14, essence
Close delayer 15,1064nm simulated lasers light source 16 and parallel light tube, optical trap 18 swash for collecting from what product emitted
Light, detector are arranged in optical trap 18, high speed flip flop 14, Precision delayer 15 and 1064nm simulated lasers light source 16 according to
It is secondary to be connected.Ranging device 2 is simulated by optical trap 18, highly sensitive photodetector 9, high speed flip flop 14, Precision delayer
15th, the compositions such as 1064nm simulated lasers light source 16, parallel light tube.Optical trap 18 collects the laser from product transmitting, Gao Ling
Sensitivity detector is placed in optical trap 18, and after detecting test product transmitting laser, high speed flip flop 14 triggers precision and prolongs
When device 15, delay time is setting analogue measurement distance, and delay time triggers 1064nm simulated lasers light source 16, laser light after arriving
Source transmitting same pulse width, frequency and with the echo laser signal apart from corresponding energy, which is received by range finder, carry out
Analogue ranging.1064nm simulated lasers light source 16 is for simulated laser ranging echo laser signal, it is necessary to simulated laser wavelength, frequency
Laser energy under rate, pulsewidth, different distance, simulated laser light source 16 is by laser, optical fiber programmable attenuator, photoswitch, light
The compositions such as beam splitter, light power meter 32, visible laser, as shown in figure 8, wavelength 1064nm laser device lasers are coupled to optical fiber
In, by the laser power of optical fiber programmable attenuator control output, beam splitter separates a certain proportion of light and enters light power meter
32, it is measured in real time, feeds back to control system, monitor current luminous power, particularly when carrying out maximum ranging distance verification, swashed
Radiant must simulate the echo laser power under maximum range, and can carry out accurate measurement to the power, to examine quilt
Survey the maximum ranging distance of product, it is seen that laser coupled is into same optical fiber, for being accurately corrected to luminous point under visible waveband
On 11 focal plane of off-axis parabolic mirror.16 the key technical indexes of simulated laser light source is as follows：Centre wavelength：1064nm scholar 3nm；
Laser power unstability≤5%；Radiant power：It is adjustable；Pulse width：10ns~100ns is adjustable；Triggering mode：External trigger,
Internal trigger (500) KHz；Repetition rate：1Hz-20KHz.
As shown in figure 9, according to the light velocity, the time, apart from relation, when simulating ranging 300M-100KM, Precision delayer
15 time setting range is about 2 μ s-1ms, and when range accuracy is 2M, delay precision is necessarily less than 6ns.Precision delayer 15 by
Source signal generator sends the pulse signal of Millisecond, through circuit for signal conditioning and it is gated after input coarse adjustment time-delay mechanism, then
Delay is finely adjusted by fine tuning time-delay mechanism, the time of delay can be realized by control computer serial communication, Precision delayer
15 functional block diagram is as shown in figure 9,15 the key technical indexes of programme control precision delayer：2 μ s-1ms of delay adjustments scope；Delay essence
Degree≤4ns.
As shown in figure 12, power-measuring device 6 includes focusing optical lens 29, diaphragm 30, speculum group 31, power meter
32nd, shell 33 and moving guide rail 34, shell 33 are arranged on moving guide rail 34, and the one side of shell 33 is provided with opening, focuses on light
It learns camera lens 29 and is arranged on opening, diaphragm 30 is arranged on outside focusing optical lens 29, and it is opposite that speculum group 31 closes power meter 32
It is arranged on inside shell 33.Power detection device is mounted on the platform of parallel light tube outlet, it is necessary to be moved to light extraction when detecting
At mouthful, optical axis center position is positioned by guide rail, 19 groups of appearance and sizes for reducing device of refractive power speculum, and diaphragm 30 can be according to
It is replaced, is kept consistent with product effective aperture according to the effective aperture of test product.Power detection device optical system is main
Technical indicator：Optics bore：Φ200mm；Focal length：32 the key technical indexes of 600mm power detection device micropowers meter：Wavelength model
It encloses：0.8~1.7 μm；Measurement range：10pW~lmw.
As shown in figure 13, controller is by industrial control computer, motion control card, image card, driver, laser light source control
The electric appliances such as system processed form, and it acts as target switching control, laser light sources (power, frequency, pulsewidth) to control, programme control precision delay
Device 15 time setting, Image Acquisition etc..Using industrial personal computer as host, using pci interface, RS232 interface between each module and host
Etc. being communicated, realize parameter setting, action command control, each module using singlechip group into relatively independent system, itself
It is controlled, and passes through interface and host exchanging data information.Display station is operated by operation panel, touch display, angle tune
The compositions such as whole structure, are man machine operation interface, and input shows information.Operation display station is designed as inclination angle as 30 °, and can be with
300 ° of rotations make commissioning operation more light comfortable.Special control software has friendly man-machine interface, can be with by the interface
Operating parameter, display data, image are inputted, each module coordination is controlled to run, control software makes testboard intelligent, such as：Optics
When passage switches, the synchronism switching of target and light source is realized automatically, auxiliary detection, intelligent behaviour, information are included in Software for Design
The functions such as prompting.Meanwhile there is error correction protection, fault diagnosis etc., make every effort to man-machine interface close friend, testboard software have with
Lower function：Parameter setting function：By need to parameter inputted by interface, modify to the parameter of correlation module, such as：Laser
Power, frequency, module, attenuation multiplying power of light source etc., image display function：The target surface image data of display observation imaging device is shown
Show function：Show test result, status information of equipment etc..Data storage function：The data such as test result, test mode are stored
To computer.
Plain shaft precision measuring principle
1. establish reference plane
As shown in Figure 10, using being that autocollimatic method corrects, high-ranking officers' normal reflection mirror 26 is close on 4 face of fixture datum this programme,
It is as shown in Figure 10 to correct light path, during test, view finding instruction light is first moved into light path first, indicates parallel light tube optical axis position, just
Instruction light principle is returned, then the autocollimatic graticle 20 with light source is moved into light path by 4 face of successive step product clamper benchmark, in target
Autocollimatic graticle 20 and the autocollimatic picture reflected through speculum are observed that in face image collecting device 25, if two pictures
Misaligned, accurate 4 face of correction reference is allowed to overlap, and until reaching required precision, establishes 4 face of benchmark and the position of optical axis.
2. establish Laser emission optical axis
As shown in figure 11, laser target 21 is moved into light path, product transmitting laser, laser (is separately prepared) by attenuating device
Suitable degree is decayed to, forms visible light spot on laser target 21, laser spot position represents product and swashs in parallel light tube
Light emitting optical axis you, facula position is recorded by target surface image collecting device 25.
3. resolve optical axis deviation
By image calculation, the height and azimuth deviation between glossing up and benchmark are resolved, is test product transmitting light
Deviation between axis and benchmark 4.
Optical axis measuring device important technological parameters：Imaging len focal length is 600mm, and optics bore is Φ 4, and CCD pixel is
5000000, optical axis measurement error is≤2.8 ".
Embodiments of the present invention are explained in detail above in association with attached drawing, but the invention is not restricted to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (6)
1. a kind of laser subsystem integral test system, it is characterised in that：Including switch board, operation display platform, power measurement
Device and optical table, the switch board, operation display platform, power-measuring device are arranged at optical table upper surface, institute
It states power-measuring device and operates the one side that display platform is arranged in parallel in switch board, be disposed with inside the switch board big
Bore off-axis parabolic collimator, simulation ranging device and plain shaft precision measuring device, the heavy caliber directional light
Pipe beam exit collimation≤5 ", effective optics bore be Φ 300mm.
2. a kind of laser subsystem integral test system according to claim 1, it is characterised in that：The large-caliber off-axis
Parabolic reflector formula parallel light tube be all band parallel light tube, including set gradually off-axis parabolic mirror, refractive power reflection
Mirror and target.
3. a kind of laser subsystem integral test system according to claim 2, it is characterised in that：Target switching is further included to lead
Rail, the target switch guide are connected with target, and the target switch guide includes two-dimentional servo guide rail and is successively set on two dimension
View finding instruction laser, 1064nm simulated lasers point light source, band above servo guide rail illuminate visible auto-collimation graticle and laser
Target.
4. a kind of laser subsystem integral test system according to claim 2, it is characterised in that：The off axis paraboloid mirror
The appearance and size of speculum be Φ 320mmX45mm (uniform thickness), female parabola focal length be 2500mm ± 5%, face shape error RMS
≤ 1/20 λ λ=0.6328 μm), surface coating reflectivity >=90% (service band).
5. a kind of laser subsystem integral test system according to claim 1, it is characterised in that：The simulation ranging dress
It puts including optical trap, photodetector, high speed flip flop, Precision delayer, 1064nm simulated lasers light source and parallel light tube,
The optical trap is for collecting the laser from product transmitting, and the detector is arranged in optical trap, and the high speed is touched
Hair device, Precision delayer and 1064nm simulated laser light sources are sequentially connected.
6. a kind of laser subsystem integral test system according to claim 1, it is characterised in that：The power measurement dress
It puts including focusing optical lens, diaphragm, speculum group, power meter, shell and moving guide rail, the shell is arranged on moving guide rail
On, the one side of the shell is provided with opening, and the focusing optical lens are arranged on opening, and the diaphragm is arranged on focusing light
It learns outside camera lens, the arrangement of mirrors power meter is oppositely arranged inside the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086757.7A CN108051182B (en) | 2017-11-07 | 2017-11-07 | Laser subsystem comprehensive test equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086757.7A CN108051182B (en) | 2017-11-07 | 2017-11-07 | Laser subsystem comprehensive test equipment |
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| CN108051182A true CN108051182A (en) | 2018-05-18 |
| CN108051182B CN108051182B (en) | 2020-02-21 |
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| CN110095192A (en) * | 2019-04-26 | 2019-08-06 | 南京理工大学 | A kind of thermal infrared imager comprehensive performance parameter test macro and its method |
| CN111707449A (en) * | 2020-05-21 | 2020-09-25 | 中国科学院西安光学精密机械研究所 | Multi-spectral optical axis parallelism testing device and testing method |
| 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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| CN111707449A (en) * | 2020-05-21 | 2020-09-25 | 中国科学院西安光学精密机械研究所 | Multi-spectral optical axis parallelism testing device and testing method |
| CN111707449B (en) * | 2020-05-21 | 2021-05-14 | 中国科学院西安光学精密机械研究所 | Multi-spectral optical axis parallelism testing device and testing method |
| 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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|---|---|
| CN108051182B (en) | 2020-02-21 |
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