CN101650168B - Laser beam axis sight deflection test system under external field environment - Google Patents
Laser beam axis sight deflection test system under external field environment Download PDFInfo
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- CN101650168B CN101650168B CN2009100238930A CN200910023893A CN101650168B CN 101650168 B CN101650168 B CN 101650168B CN 2009100238930 A CN2009100238930 A CN 2009100238930A CN 200910023893 A CN200910023893 A CN 200910023893A CN 101650168 B CN101650168 B CN 101650168B
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Abstract
The invention relates to the technical field of optical equipment, specifically relating to the technical field of sight deflection test devices, in particular to a laser beam axis sight deflection test system under external field environment. In order to overcome the problem of poor working accuracy of photoelectrical sight device and precise test devices under external field environment in the prior art, the invention adopts the following technical scheme: the laser beam axis sight deflection test system under external field environment comprises a fire mechanism, an adjusting mechanism and a receiving component, wherein, the fire mechanism comprises a first sight lens and a laser; the adjusting mechanism comprises a laser adjusting mechanism, a first sight lens adjusting mechanism, a second sight lens adjusting mechanism and a laser receiving objective lens adjusting mechanism; and the receiving component comprises a second sight lens, a laser receiving optical system and a CCD. Compared with the prior art, the invention has the advantages of high accuracy and good effect.
Description
Technical field:
The present invention relates to the optical devices technologies field, be specifically related to aim bias proving installation technical field, particularly a kind of laser beam axis sight deflection test system under external field environment.
Background technology:
Can laser and visible light guarantee run-home exactly in the precision measurement system, and key is the aiming consistance of system's two wave band optical axises, if aiming consistance deviation is big, it is big that test error will become.Two optical axis systems in existing optoelectronic aiming equipment and the precise testing device, after the laboratory precision was debug, it was parallel to guarantee that it is in substantially.Optoelectronic aiming equipment and precise testing device are to utilize reflective two meters parallel light tubes that two optical axises are calibrated and tested in the laboratory mostly at home.
Because the real work of equipment under test is all carried out, therefore directly influence the operating accuracy of equipment under test under external field environment:
When (1) using, because variation and the body or the body oscillating etc. of environment temperature cause that the sighting system structural parameters change, and promptly cause structural imbalance in the outfield.Its actual sensing can substantial deviation original position, causes many optical axises drifts and not parallel, and not parallel sometimes error reaches 10 ', causing the test performance variation of device, hit rate is low.Be out at present under the field condition, also do not have good methods to solve many beam axis sight deflection tests and calibration problem.
(2) in remote aiming, atmospheric temperature, air pressure, visibility, humidity and gasoloid etc. can cause that all air index changes, and propagation path of light is changed, and cause optical axis and target imaging position to drift about, form aim bias, thus the actual sensing of influence aiming optical axis.
Based on above-mentioned reason, all need optical axis calibrator and aiming parameter measurement equipment in research and production and working service, to improve the pointing accuracy of optoelectronic aiming equipment and precise testing device.But also can not carry out optical axis calibrator and aiming parameter measurement equipment at present under external field environment, therefore existing optoelectronic aiming equipment and precise testing device are difficult to guarantee its operating accuracy under external field environment.The method of testing of at present visible optical axis and laser beam axis collimation is a lot, but the overwhelming majority is based on breadboard parallel light tube method, with having at a distance under parallel light tube simulation distant object and the external field environment than large deviation, and special-purpose field survey instrument or equipment are not all considered the influence of Natural environment factors to two optical axises, and these methods exist with strong points, influenced greatly by subjective factor, characteristics such as precision is not high, so be difficult to adapt to the needs of measuring, yet there are no at home at present and consider dynamic calibration in Natural environment factors outfield and test macro.The problem that prior art exists is: under external field environment, optoelectronic aiming equipment and precise testing device operating accuracy are poor, and do not consider the influence of Natural environment factors to laser and visible light two optical axises.
Summary of the invention:
The present invention will provide a kind of laser beam axis sight deflection test system under external field environment, with overcome that prior art exists under external field environment, the problem of optoelectronic aiming equipment and precise testing device operating accuracy difference.
For overcoming the problem that prior art exists, technical scheme of the present invention is: a kind of laser beam axis sight deflection test system under external field environment, comprise trigger mechanism, adjusting mechanism and receiving unit, its special character is: described trigger mechanism comprises that being arranged at the sight of first on the adjusting mechanism takes aim at mirror and laser instrument, and adjusting mechanism comprises that respectively the mirror adjusting mechanism is taken aim in the laser instrument adjusting mechanism, first sight that are arranged on the optical table, mirror adjusting mechanism and laser pick-off object lens adjusting mechanism are taken aim in second sight; Described receiving unit comprises that second sees and to take aim at mirror, laser pick-off optical system and CCD, described second sees and to take aim at mirror and be arranged at second and see and take aim on the mirror adjusting mechanism, the laser pick-off optical system is by optical filter, object lens first lens, object lens second lens, object lens the 3rd lens, object lens first catoptron and object lens second catoptron are formed, high levels such as mirror optical axis and laser optical axis maintenance are taken aim in first sight, high levels such as mirror optical axis and the maintenance of laser pick-off objective lens optical axis are taken aim in second sight, CCD places on the imaging surface of laser pick-off optical system, and the optical axis of its center and laser pick-off optical system keeps concentric etc. high-level.
Compared with prior art, advantage of the present invention is: the laser pick-off optical system adopts 6 catadioptric formula structures, and wherein, two groups of catoptrons are to be used to the light path of turning back, and the axial dimension of optical system is shortened, and overall dimensions reduces; Optical filter is equipped with in the optical system front, this optical filter both can be protected the internal optics system, prevent that dust from entering, simultaneously only make the laser beam of 1.06 mu m wavebands enter optical system again, other band light beam is suppressed, reduced scattered noise, improved the signal to noise ratio (S/N ratio) of system, for the subsequent optical signal Processing provides effective information; Optical system has big entrance pupil (Φ 120mm), object lens of large relative aperture (1/5) characteristics, guarantees that enough luminous energies enter system, have improved the detection range of system effectively; The resolution of optical system is 1.17 ", can reach 0.017m to the accuracy of identification of 3km, be converted on detector (CCD) photosurface and can reach 0.04mm, system accuracy is improved; In addition, optical system adopts investigation mission outside the city or town close-burning structure, and camera lens moves 3.5mm relative to CCD integral body, can realize the focusing range of 100m～3000m, in this scope, can discern under accuracy of identification any target.
Under external field environment, pointing accuracy is largely increased, and can reach 0.3mrad; Operating distance under the external field environment is far away, can reach 1～3km.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a laser receiver system optical texture synoptic diagram.
Description of reference numerals is as follows:
The 1-laser instrument, 2-first sees and takes aim at mirror, 3-laser pick-off object lens, the 4-optical table, 5-laser instrument adjusting mechanism, 6-first sees and takes aim at the mirror adjusting mechanism, 7-second sees and takes aim at the mirror adjusting mechanism, 8-laser pick-off object lens adjusting mechanism, and 9-second sees and takes aim at mirror, 10-optical table support, 11-target, 12-optical filter, 13-object lens first lens, 14-object lens second lens, 15-object lens the 3rd lens, 16-first catoptron, 17-second catoptron, 18-CCD.
Embodiment:
Below in conjunction with drawings and Examples the present invention is elaborated.
Referring to Fig. 1～2, a kind of laser beam axis sight deflection test system under external field environment, comprise trigger mechanism, adjusting mechanism and receiving unit, described trigger mechanism comprises that being arranged at the sight of first on the adjusting mechanism takes aim at mirror 2 and laser instrument 1, and adjusting mechanism comprises that respectively mirror adjusting mechanism 6 is taken aim in the laser instrument adjusting mechanism 5, first sight that are arranged on the optical table 4, mirror adjusting mechanism 7 and laser pick-off object lens adjusting mechanism 8 are taken aim in second sight; Described receiving unit comprises that second sees and to take aim at mirror 9, laser pick-off optical system and CCD18, described second sees and to take aim at mirror 9 and be arranged at second and see and take aim on the mirror adjusting mechanism 7, the laser pick-off optical system is made up of optical filter 12, object lens first lens 13, object lens second lens 14, object lens the 3rd lens 15, object lens first catoptron 16 and object lens second catoptron 17, laser pick-off optical system visual field is 1 °, effective aperture is Φ 120mm, the optics length overall is 613mm, and focal length is 1000mm; High levels such as mirror 2 optical axises and laser instrument 1 optical axis maintenance are taken aim in first sight, and both are at a distance of 150mm; High levels such as mirror 9 optical axises and the 3 optical axis maintenances of laser pick-off object lens are taken aim in second sight, and both are at a distance of 150mm; CCD18 places on the imaging surface of laser pick-off optical system, and the optical axis of its center and laser pick-off optical system keeps concentric etc. high-level.
Laser instrument adjusting mechanism 5 and laser pick-off object lens adjusting mechanism 8 are regulated platform by electronic control translation stage, automatically controlled universal stage, 3 of automatically controlled tilting tables respectively and are formed; First sees and to take aim at mirror adjusting mechanism 6 and second and see and take aim at mirror adjusting mechanism 7 and adjust first respectively and see and take aim at mirror 2 and second and see the orientation of taking aim at mirror 9, and first sees and take aim at mirror adjusting mechanism 6 and second and see and take aim at mirror adjusting mechanism 7 and be made up of translation stage, lifting table, universal stage, angular displacement platform respectively.Said structure is common known configurations, so the present invention is not described in detail this.
Principle of work of the present invention is: under external field environment, Laser Transmission is subjected to atmospheric effect, can produce drift and expansion, make actual the sensing depart from respect to target, directly influence the actual collimation of two optical axises in the EOTS, produced aim bias, it is the benchmark optical axis that sight deflection test system is set up in reference that the present invention adopts with the visible light, with laser and visible light two beam axis sight deflection proving installations, determine under external field environment, laser distributes with respect to visible light the departing from of center on target at the hot spot on the target, obtains the centre deviation data of the two, finally obtains the actual aim bias of two optical axises.
The course of work of the present invention:
One, calibration: with laser instrument adjusting mechanism 5, first see take aim at mirror adjusting mechanism 6, second see take aim at mirror adjusting mechanism 7 with laser pick-off object lens adjusting mechanism 8 laser instrument 1, first is seen take aim at mirror 2, that mirror 9 is taken aim in second sight is parallel with the optical axis adjustment of laser pick-off object lens 3, the optical axis of laser instrument 1 and first is seen the optical axis of taking aim at mirror 2 and is adjusted into parallel contour, so that rapid, the accurately run-home of laser instrument 1 energy, it is parallel contour with the optical axis of laser pick-off object lens 3 that mirror 9 optical axises are taken aim in second sight, is convenient to two optical axises and accurately measures.CCD18 is placed on the imaging surface of laser pick-off optical system, and its center is concentric contour with the optical axis maintenance of laser pick-off optical system;
Two, emission: the laser of laser instrument 1 emission 1.06 μ m, laser forms sightless hot spot on target 11;
Three, receive: hot spot is by laser pick-off object lens 3 and laser pick-off optical system, and the laser pick-off optical system is imaged on hot spot the cross mark that receives target 11 on the photosurface of CCD18 simultaneously, and converts optical information to electrical information, exports with vision signal.
Afterwards, can pass through conventional mode: for example; External computer system receive the information that the laser pick-off optical system transmits (this information be through Flame Image Process obtain on the computer display screens with order target 11 on the corresponding video visible light spot of invisible laser spot position), distribute with respect to visible light the departing from of center on target 11 at the hot spot on the target 11 by function calculation laser, obtain the centre deviation data of the two, finally obtain the actual aim bias of two optical axises.
Claims (1)
1. laser beam axis sight deflection test system under external field environment, comprise trigger mechanism, adjusting mechanism and receiving unit, it is characterized in that: described trigger mechanism comprises that being arranged at the sight of first on the adjusting mechanism takes aim at mirror (2) and laser instrument (1), and adjusting mechanism comprises that respectively mirror adjusting mechanism (6) is taken aim in the laser instrument adjusting mechanism (5), first sight that are arranged on the optical table (4), mirror adjusting mechanism (7) and laser pick-off object lens adjusting mechanism (8) are taken aim in second sight; Described receiving unit comprises that second sees and to take aim at mirror (9), laser pick-off optical system and CCD (18), described second sees and to take aim at mirror (9) and be arranged at second and see and take aim on the mirror adjusting mechanism (7), the laser pick-off optical system is by the optical filter (12) that is successively set on the same optical axis, object lens first lens (13), object lens second lens (14), object lens the 3rd lens (15), object lens first catoptron (16) and object lens second catoptron (17) are formed, mirror (2) optical axis is taken aim in first sight and laser instrument (1) optical axis is contour, mirror (9) optical axis is taken aim in second sight and laser pick-off object lens (3) optical axis is contour, CCD (18) places on the imaging surface of laser pick-off optical system, and its center is concentric contour with the optical axis of laser pick-off optical system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100238930A CN101650168B (en) | 2009-09-11 | 2009-09-11 | Laser beam axis sight deflection test system under external field environment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100238930A CN101650168B (en) | 2009-09-11 | 2009-09-11 | Laser beam axis sight deflection test system under external field environment |
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| CN101650168A CN101650168A (en) | 2010-02-17 |
| CN101650168B true CN101650168B (en) | 2011-01-12 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308005B (en) * | 2013-06-12 | 2015-11-18 | 西安应用光学研究所 | The Photoperiodic effects method of the anti-photoelectric observing collimation device of linear array |
| CN106697329A (en) * | 2016-12-15 | 2017-05-24 | 哈尔滨飞机工业集团有限责任公司 | Transmission shaft adjustment method for tail rotor test |
| CN108007394B (en) * | 2017-11-30 | 2020-06-19 | 南京理工大学 | Remote high-precision centering debugging device and debugging method thereof |
| CN110966962A (en) * | 2018-09-29 | 2020-04-07 | 中国科学院长春光学精密机械与物理研究所 | All-sky-domain laser parallelism calibration equipment |
| CN113607383A (en) * | 2021-07-07 | 2021-11-05 | 湖北航天技术研究院总体设计所 | Device, system and method for measuring aiming deviation of laser optical axis |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518855A (en) * | 1982-09-30 | 1985-05-21 | Spring-Mornne, Inc. | Method and apparatus for statically aligning shafts and monitoring shaft alignment |
| CN200986436Y (en) * | 2006-12-14 | 2007-12-05 | 王冬梅 | Device for detecting location deviation of visual laser beam |
| CN101446485A (en) * | 2008-08-27 | 2009-06-03 | 中国科学院光电技术研究所 | Surveymeter for parallelism of optical axis of visible and infrared light wave |
-
2009
- 2009-09-11 CN CN2009100238930A patent/CN101650168B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518855A (en) * | 1982-09-30 | 1985-05-21 | Spring-Mornne, Inc. | Method and apparatus for statically aligning shafts and monitoring shaft alignment |
| CN200986436Y (en) * | 2006-12-14 | 2007-12-05 | 王冬梅 | Device for detecting location deviation of visual laser beam |
| CN101446485A (en) * | 2008-08-27 | 2009-06-03 | 中国科学院光电技术研究所 | Surveymeter for parallelism of optical axis of visible and infrared light wave |
Non-Patent Citations (1)
| Title |
|---|
| 吕宏等.大气环境下用于瞄准的激光波束传播特性研究.《应用光学》.2009,第30卷(第4期),第697-702页. * |
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