CN101581556A - Null moving digital measuring device of aiming device based on target plate with composite image - Google Patents
Null moving digital measuring device of aiming device based on target plate with composite image Download PDFInfo
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- CN101581556A CN101581556A CNA2008101064382A CN200810106438A CN101581556A CN 101581556 A CN101581556 A CN 101581556A CN A2008101064382 A CNA2008101064382 A CN A2008101064382A CN 200810106438 A CN200810106438 A CN 200810106438A CN 101581556 A CN101581556 A CN 101581556A
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Abstract
The invention relates to a null moving digital measuring device of an aiming device based on a target plate with a composite image, belonging to the technical field of optical precision measurement and comprising a light source, the target plate with a composite image, a reflecting mirror, a main reflecting mirror, a clamp apparatus, an image analyzer, a computer, a temperature control module and a casing. The device uses the light source to illume the target plate with a composite image so as to respectively generate multi-waveband composite aiming targets which are imaged on a measured aiming device after passing through the reflecting mirror and the main reflecting mirror, target images outputted by the aiming device are directly collected or images on a reticule are collected at an exit pupil position of the ocular of the aiming device by the image analyzer, then the digital image process is carried out on the images by measuring software after the images are input to the computer, and finally a measured result is calculated. The invention can be used for the high-precision detection of null moving of the ultrared visible low-light level aiming device and has the advantages of high precision and objectivity as well as good real-time performance.
Description
Technical field
The present invention be a kind of based on the compound pattern target plate take aim at the tool zero-bit digital measuring device of walking about, it can be used for infrared and visible light takes aim at the zero-bit of the tool high accuracy of parameter under indoor environment of walking about and detects, and belongs to technical field of optical precision measurement.
Technical background
Along with the modern military development in science and technology, infrared, visible, low-light is taken aim at tool has become common device in the armament systems, taking aim at tool is the eyes of Small-Arms Weapons System, take aim at the use of tool, armament systems are stepped a stage, improved the comprehensive effectiveness of the round-the-clock uses of armament systems greatly, it is far away to make armament systems have a viewing distance, and pointing velocity is fast, the fire accuracy advantages of higher.The zero-bit of taking aim at tool is walked about and is meant the momentum of walking of the aiming division line in the sum of errors shooting course of repeating to be installed of taking aim at tool and firearms, and zero-bit is walked about directly influences fire accuracy and first strike effect of armament systems.
Up to the present, method of testing both domestic and external is basic identical, no matter be development side, production plant or product tested detect and actual user, great majority all are to add the test of walking about of zero-bit that subjective interpretation realizes taking aim at tool by the visual aligning of human eye, and taking aim at tool at the complicated photoelectricity under infrared, visible, the low-light multiband does not also have objective high-precision measuring method.
Wherein, Chang Yong measuring method in the patent " riflescope zero correction instrument ZL02258354.8 " introduction: on the jig of the tester that at first firearms is installed, fix a collimator objective in tested tool the place ahead of taking aim at of firearms.Firearms were taken aim at tool and can be observed graticle in the collimator objective this moment.Before and after the live shell environmental experiment, take aim at tool by firearms twice respectively and observe reading value on the graticle in the collimator objective, converse the zero-bit of taking aim at tool and walk momentum.
In order to get rid of the artificial subjective parallax error that this measuring method is introduced, the scholar of association area studies, and has proposed to adopt the method for Digital Image Processing to carry out interpretation.Usually adopt figure image intensifying (identification number 1008-0570 (2007) 08-1-0094-03), Histogram statistics methods such as (identification number 1000-1093 (2007) 10-1205-04), be used for improving the precision of measurement.These measuring methods have solved low-light and have taken aim at the high-precision measuring method that the tool zero-bit is walked about, but its device can't be finished infrared band and takes aim at the test of walking about of tool zero-bit.
Summary of the invention
The objective of the invention is in order to overcome the deficiency of above-mentioned prior art, provide a kind of based on complex target plate take aim at the tool zero-bit digital measuring device of walking about, it can be used for infrared, visible light and low-light and takes aim at the zero-bit of tool and walk the high accuracy of momentum under indoor environment and detect.
Technical solution of the present invention is: a kind of based on the compound pattern target plate take aim at the tool zero-bit digital measuring device of walking about, it comprises: light source 1, compound pattern target plate 2, speculum 3, principal reflection mirror 4, jig 5, as analyzer 7, computer 8, temperature control module 9, casing 10; Described compound pattern target plate 2 is by light source 1 illumination, successively by providing the target of infinity behind speculum 3, the principal reflection mirror 4, takes aim at imaging on the tool 6 tested; The described tested tool 6 of taking aim at is installed on jig 5.
Also comprise testedly take aim at tool 6, as analyzer 7, computer 8, when being used to measure have an eyepiece tested and taking aim at tool 6, computer 8 is gathered vision signals by picture analyzer 7, and carries out image through software and handle; When being used to measure have video output tested and taking aim at tool 6, directly gathers vision signal by computer 8, and pass through software and carry out the image processing.
Compound pattern target plate 2 is wherein made by the substrate hollow out, and its figure is made of a plurality of figures that are used to aim at.
Use optical angle gauge as demarcating the walk about etalon of deflection angle value of zero-bit, realize demarcation this device.
Beneficial effect
The present invention contrasts prior art and has following remarkable advantage:
1) can finish the test of walking about of the multiple zero-bits of taking aim at tool such as infrared, visible, low-light;
2) a plurality of aiming at the mark participates in calculating simultaneously, reduced the influence of random error, improved the system testing precision;
3) adopt the multiple spot target that aims at the mark, produce the multiple target image on the tool graticle and participate in simultaneously that image is handled, the computational accuracy height tested taking aim at;
4) use large caliber reflecting mirror, can realize that a plurality of tools of taking aim at are installed, improve measurement efficient simultaneously;
5) adopt the method for shielding, temperature control to improve signal to noise ratio, improve the Digital Image Processing precision;
6) measuring process can be fully by computer control, and result of calculation draws by Digital Image Processing, gets rid of artificial disturbance, is objective measurement, and test speed is fast;
7) adopt optical angle gauge as demarcating the walk about etalon of deflection angle value of zero-bit, reduced the systematic error of device.
Description of drawings
Fig. 1 is the schematic diagram of the embodiment of the invention one;
Fig. 2 is the schematic diagram of the compound pattern target plate described in the embodiment of the invention one, two;
Before Fig. 3 is target practice and environmental experiment, the schematic diagram of taking aim at the tool alignment image that testing arrangement collects;
After Fig. 4 is target practice and environmental experiment, the schematic diagram of taking aim at the tool alignment image that testing arrangement collects;
Fig. 5 is the schematic diagram of the embodiment of the invention two;
Wherein: 1-light source, 2-compound pattern target plate, 3-speculum, 4-principal reflection mirror, 5-jig, the tested tool of taking aim at of 6-, 7-be as analyzer, 8-computer, 9-temperature control module, 10-casing, 11,12,13,14,15-aims at the mark.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Basic thought of the present invention is to utilize the compound pattern target plate to generate aiming at the mark of infrared, visible, low-light, use a plurality of aiming at the mark to carry out interpretation simultaneously, utilize computer acquisition to take aim at alignment image in the tool, and carry out Digital Image Processing, draw the objective measurement result by Survey Software.
The core thinking of test is at first measured a plurality of differences that aim at the mark and take aim at tool graduation relative position mainly in two steps; Behind target practice and environmental testing, measure a plurality of differences that aim at the mark and take aim at the relative position of tool graduation once more, converse the tested zero-bit of tool before and after target practice and environmental testing of taking aim at by these two differences and walk about.Target practice wherein and environmental testing can comprise multiple degradations such as vibration test, temperature test.
The scaling method of this device is to adopt optical angle gauge as demarcating the walk about etalon of deflection angle value of zero-bit, and the standard drift angle value of utilizing optical angle gauge to generate is demarcated the measured value that installs, and reduces the systematic error of measurement mechanism.
Embodiment one
As shown in Figure 1, the tool zero-bit digital measuring device of walking about of taking aim at based on the compound pattern target plate of the present invention comprises: light source 1, compound pattern target plate 2, speculum 3, principal reflection mirror 4, jig 5, as analyzer 7, computer 8, temperature control module 9, casing 10; Described compound pattern target plate 2 is by light source 1 illumination, takes aim at imaging on the tool 6 by speculum 3, principal reflection mirror 4 backs tested successively; The described tested tool 6 of taking aim at is installed on jig 5.
Also comprise testedly take aim at tool 6, as analyzer 7, computer 8, when being used to measure have an eyepiece tested and taking aim at tool 6, can be by computer 8 by gather out the image of taking aim in the tool eyepiece as analyzer 7.
Also comprise temperature control module 9, shell 10, wherein casing 10 is used to shield extraneous veiling glare and disturbs and improve the signal to noise ratio that infrared, visible light, low-light are taken aim at the tool image; Temperature control module 9 improves the infrared signal to noise ratio of taking aim at the tool image by the control temperature.
Compound pattern target plate 2 wherein adopts the copper sheet of twin polishing to make, and target plate figure hollow out on copper sheet forms.As shown in Figure 2, figure is made of five circular holes that are used to aim at, the circular hole center symmetry at four relative centers of circular hole on every side.Circular hole is compared the easier realization high accuracy number of traditional cross hairs image and is handled.Owing to adopt a plurality of circles to aim at simultaneously, therefore reduced the interference of random error to the digital picture algorithm of subdivision, improved the system testing precision.
The operating process of device is: at first before target practice and environmental experiment, the tested tool 6 of taking aim at is installed on jig 5, open light source 1, computer 8 is by the digital picture subdivide technology, calculate the sub-pix coordinate of each figure of compound pattern target plate 2 in the tested video image of taking aim at tool 6, calculate the center and the tested difference of taking aim at tool 6 sight line coordinates of compound pattern target plate 2.Practice shooting and environmental experiment after, the step before repeating is tried to achieve new coordinate difference.By two groups of data before and after the contrast, can converse the tested zero-bit of tool 6 before and after target practice and environmental experiment of taking aim at and walk momentum.
Embodiment one adopts the infrared tool of taking aim at of 75mm focal length as the tested tool 6 of taking aim at, and its test data is as follows: practice shooting and environmental experiment before the image gathered of picture analyzer as shown in Figure 3, at the image of environmental experiment after image analyzer collection as shown in Figure 4.Horizontal line among Fig. 3, Fig. 4 and arrow are the foresights of taking aim on the tool, and circular light spot is the alignment patterns on the compound pattern target plate 2.Can draw by Digital Image Processing, practice shooting and the environmental experiment front and back, the relative position between foresight and the alignment patterns has moved 0.44mil, and it is 0.44mil that the zero-bit of promptly taking aim at tool is walked momentum.
By theoretical simulation and actual detected: the device of this embodiment one has improved by a series of measure takes aim at the walk about precision of test of tool zero-bit, short focal length is infrared takes aim on the tool in the relatively poor non-refrigeration of image quality, the digital picture subdivision accuracy can reach more than 20 segmentations, zero-bit is walked about the test uncertainty less than 0.006mil, and measuring accuracy is better than 0.03mil.When detecting high imaging quality and taking aim at the zero-bit of tool and walk about parameter, this test macro has higher measuring accuracy.
Embodiment two
As shown in Figure 5, the tool zero-bit digital measuring device of walking about of taking aim at based on the compound pattern target plate of the present invention comprises: light source 1, compound pattern target plate 2, speculum 3, principal reflection mirror 4, jig 5, computer 8, temperature control module 9, casing 10.
With not being both of embodiment one, therefore the tested directly output video image of tool 6 of taking aim at can directly be gathered the video of taking aim at tool by computer and handle.Embodiment two is owing to the error component of having removed the picture analyzer, so measuring accuracy is higher.
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described; but these explanations can not be understood that to have limited scope of the present invention; protection scope of the present invention is limited by the claims of enclosing, and any change on claim of the present invention basis all is protection scope of the present invention.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810106438A CN101581556B (en) | 2008-05-13 | 2008-05-13 | Null moving digital measuring device and method of aiming device based on target plate with composite image |
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| CN200810106438A CN101581556B (en) | 2008-05-13 | 2008-05-13 | Null moving digital measuring device and method of aiming device based on target plate with composite image |
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| CN101581556B CN101581556B (en) | 2012-10-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833088A (en) * | 2010-03-30 | 2010-09-15 | 浙江大学 | Digitized radar boresight method applied to plane general assembly |
| CN103278143A (en) * | 2013-05-09 | 2013-09-04 | 昆明北方红外技术股份有限公司 | Machine version-based zero position walking momentum testing device and machine vision-based zero position walking momentum testing method |
| CN103398837A (en) * | 2013-07-17 | 2013-11-20 | 中国人民解放军济南军区72465部队 | Reflected light path-based low-light level night vision device resolution detection method and device |
| CN104344834A (en) * | 2013-07-29 | 2015-02-11 | 长春理工大学 | Quantitative test method of zero-fly tester index |
| CN106338382A (en) * | 2016-11-03 | 2017-01-18 | 河南平原光电有限公司 | General multispectral partition system |
| CN106767159A (en) * | 2017-01-20 | 2017-05-31 | 长春理工大学 | White light gun sight zero-bit baseline walks momentum digital measuring device |
| CN112857581A (en) * | 2021-01-12 | 2021-05-28 | 湖北华中光电科技有限公司 | Simple thermal infrared imager zero position measuring device and using method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2416478Y (en) * | 2000-01-20 | 2001-01-24 | 张仕华 | Corrector for gun |
| SE0100497L (en) * | 2001-02-15 | 2002-03-19 | Saab Ab | Two single devices and a firing simulator procedure |
| SE516884C2 (en) * | 2001-03-23 | 2002-03-19 | Saab Ab | System for the uniforming of a sliding simulator and a unit for this |
| CN2578774Y (en) * | 2002-11-07 | 2003-10-08 | 无锡市星迪仪器有限公司 | Zero calibrator for gun optical sights |
-
2008
- 2008-05-13 CN CN200810106438A patent/CN101581556B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833088A (en) * | 2010-03-30 | 2010-09-15 | 浙江大学 | Digitized radar boresight method applied to plane general assembly |
| CN101833088B (en) * | 2010-03-30 | 2012-11-21 | 浙江大学 | Digitized radar boresight method applied to plane general assembly |
| CN103278143A (en) * | 2013-05-09 | 2013-09-04 | 昆明北方红外技术股份有限公司 | Machine version-based zero position walking momentum testing device and machine vision-based zero position walking momentum testing method |
| CN103398837A (en) * | 2013-07-17 | 2013-11-20 | 中国人民解放军济南军区72465部队 | Reflected light path-based low-light level night vision device resolution detection method and device |
| CN104344834A (en) * | 2013-07-29 | 2015-02-11 | 长春理工大学 | Quantitative test method of zero-fly tester index |
| CN106338382A (en) * | 2016-11-03 | 2017-01-18 | 河南平原光电有限公司 | General multispectral partition system |
| CN106767159A (en) * | 2017-01-20 | 2017-05-31 | 长春理工大学 | White light gun sight zero-bit baseline walks momentum digital measuring device |
| CN112857581A (en) * | 2021-01-12 | 2021-05-28 | 湖北华中光电科技有限公司 | Simple thermal infrared imager zero position measuring device and using method thereof |
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| CN101581556B (en) | 2012-10-24 |
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