CN205102919U - Hyperspectral imager system of mirror linear trace can realize changeing - Google Patents
Hyperspectral imager system of mirror linear trace can realize changeing Download PDFInfo
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- CN205102919U CN205102919U CN201520942811.3U CN201520942811U CN205102919U CN 205102919 U CN205102919 U CN 205102919U CN 201520942811 U CN201520942811 U CN 201520942811U CN 205102919 U CN205102919 U CN 205102919U
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Abstract
The utility model belongs to the technical field of rotor unmanned aerial vehicle hyperspectral imager, a hyperspectral imager system of mirror linear trace can realize changeing is disclosed for solve prior art and take place the problem that distorts because of having scanned starting and destination point with the inconsistent image that leads to of interlude speed. The printed matter information extraction check meter comprises a base boar, install scanning on the bottom plate and change the mirror device, the pivot that the mirror device includes fixed mounting is changeed in scanning, the cover is equipped with in the pivot can change mirror lens base by the pivoted in the pivot, install on the commentaries on classics mirror lens base and change the mirror lens, it is connected with the push rod to change mirror lens base, the push rod is connected with linear electric motor.
Description
Technical field
The utility model belongs to rotor wing unmanned aerial vehicle high light spectrum image-forming technical field, is specifically related to a kind of Hyperspectral imager that can realize tilting mirror linear sweep.
Background technology
The development experience of remote sensing technology panchromatic (black and white), colored shooting, after multispectral scanner imaging session, at the imaging spectral technology that the phase at the beginning of the eighties in last century occurs, make remote optical sensing enter one brand-new stage-the high-spectrum remote-sensing stage.So-called high-spectrum remote-sensing refers to the remote sensing science and technology with high spectral resolution, the imaging spectrometer that imaging spectral technology uses can in the ultraviolet of electromagnetic wave spectrum, visible ray, near infrared and short-wave infrared region, obtains many very narrow and spectrum continuous print view data.Imaging spectrometer provides tens of spectral information to hundreds of narrow wave bands for each pixel, forms a complete and continuous print curve of spectrum therefrom.The various atural objects observed in field range are recorded with the complete curve of spectrum by imaging spectrometer, and carry out analyzing and processing and study being the multidisciplinary work that will carry out to recorded data.
High light spectrum image-forming technology is an emerging cross discipline, be based upon on the basis of the technology such as sensor, computing machine, relate to the multi-door subject such as Electromagnetic theory, spectroscopy and colorimetry, physics/geometrical optics, electronic engineering, information science, geography, agronomy, atmospheric science, thalassography.Electromagnetic theory is then the physical basis of remote sensing technology, mode in different medium of the interaction mechanism of electromagnetic wave and terrestrial materials, electromagnetic wave and to receive it, analyze be the core place of comprehensive each door subject and technology.For the different spectral signatures of different atural object, utilize high spectrum image effectively to distinguish and to identify atural object, be thus widely used in atmospheric exploration, medical diagnosis, material classification and target identification, land resources, ecology, environmental monitoring and urban remote sensing.
Testee is by being caught by spectrum camera after camera lens, obtain the image of an one dimension and corresponding spectral information, and when automatically controlled mobile flat rubber belting drives sample to run continuously, then can obtain the continuous print one dimension image of sample object thing and real-time spectral information, or when scanning mirror is when rotating, the continuous print one dimension image of object equally also can be obtained.And data all in the process can by computer software record, final obtain the three-dimensional data cube that contains image information and spectral information.By the analysis to data, can detect for the quality information of target sample.
Imaging system is by imaging spectrometer and the complete system combined of face battle array monochrome cameras.Imaging spectrometer becomes the picture of a line in target at every turn, and carries out light splitting to the incident light entering spectrograph slit, and light splitting makes a pixel in the corresponding detector linear array of each spectral component.Therefore, each width comprises the linear array pixel on a dimension (spatial axes) and the spectral distribution (light is in the intensity of spectral element) in another dimension (spectrum axle) from the picture structure of spectrum camera.Like this, through accurate alignment and be fixed together imaging spectrometer and face battle array monochrome cameras, imaging lens and translation mechanism drive the motion of sample or then can be obtained the high-spectral data of the three-dimensional of object by the rotation of scanning mirror.
Imaging spectrometer uses new collimation (on an axle) optical configuration and an individual holographic transmission grating.This structure can provide very high diffraction efficiency and good line spectrum, and independently incident light polarization is that application owing to axle operating geometric distortion and the transmission optics caused causes.Transmission grating is the DCG(DiChromatedGelation of artificial holography between two pieces of glass haftplattes) on.DCG has very high diffraction efficiency, lower dispersion, lower multiorder diffractive and does not produce ghost line.
Imaging process is: at every turn into a line as rear (X-direction), in the process that drive motor drives scanning mirror to rotate, the detector of arrangement scans out a ribbon track thus completes longitudinal scanning (Y-direction).Comprehensive transverse and longitudinal scanning information just can obtain the three-dimensional hyperspectral image data of sample.This packet contains: the characteristic information of image, radiation and spectrum three aspect.
In prior art, the set-up mode of scanning mirror has two kinds:
One, imaging system is by imaging lens, imaging spectrometer and complete the combining of face battle array monochrome cameras, is fixed in system, without any relative motion between three.Design a scanning mirror in imaging lens front, incident beam enters camera lens after tilting mirror deflection, then by the light splitting of imaging spectrometer, finally by the picture of testee on the detector.Imaging spectrometer becomes the picture of a line in target at every turn, and light splitting makes a pixel in the corresponding linear array of each spectral component.Therefore, each width comprises the linear array pixel on a dimension (spatial axes) and the spectral distribution (light is in the intensity of spectral element) in another dimension (spectrum axle) from the picture structure of spectrum camera.And to all for destination object pictures be all presented on planar array detector, need to have between object and imaging system the motion that is relative.The scanning of spectrum is completed by the scanning mirror being arranged on imaging lens front.
Two, because imaging spectrometer becomes the picture of a line in target at every turn, so design and installation one becomes the plane mirror of 45 degree with camera lens focal plane before camera lens, as shown in Figure 1.The reflective scan mirror minute surface that entrance slit and its of imaging spectrometer front end are placed on front end is parallel, just to minute surface center line.And scanning mirror is also a plane mirror, be arranged on a transmitting gear by mechanical structured member, transmitting gear can under the rotation driving tilting mirror rotary electric machine, scanning mirror just can carry out the rotation of 360 degree, the information of such object enters imaging system after catoptron, is detected device collection and generates high spectrum image.This pattern can realize large-scale scanning, and be no longer subject to the impact of camera lens visual field and other factors and cause realizing image acquisition and the scanning of wide visual field scope, project organization is harmony closely.Under this rotating mirror scanning pattern, utilize drive motor to drive the gear of scanning mirror lower end, make tilting mirror with the central shaft of its tilting mirror minute surface for 360 degree of rotations are carried out in axle center.By the rotation of tilting mirror, the image of different target thing being entered successively by imaging lens---the imaging system that imaging spectrometer and detector form, finally presents a complete airborne-remote sensing.Level crossing is one and does not change light beam holocentric performance, and can improve the optical system of imaging, imaging and symmetrical and minute surface identical with life size.
But when utilizing tilting mirror type collection image, scanning mirror is with medium and small axle for the center of circle moves in a circle, and the linear velocity that the target object that tilting mirror is mapped to different distance shows is different.When corresponding to the initiating terminal of image acquisition and end, scanning mirror rotates, its sweep trace speed can be larger, and when the center section of image acquisition, its linear velocity scanned then can be relatively smaller; That is there is a length velocity relation of a similar cosine function relationship; When initiating terminal and end carry out acquisition scans, very high sweep trace speed is needed to match; And the inconsistent meeting of speed causes image to distort.
Utility model content
The utility model in order to solve prior art because of scanning initiating terminal and end and interlude speed inconsistent and cause image that the problem distorted occurs, and a kind of Hyperspectral imager that can realize tilting mirror linear sweep is provided, at the initiating terminal scanned, end or interlude, a constant speed can both be kept to carry out the image of shooting, avoid image and distort.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of Hyperspectral imager that can realize tilting mirror linear sweep, comprise base plate, described base plate is provided with scanning mirror device, described scanning mirror device comprises hard-wired rotating shaft, described rotating shaft is arranged with the tilting mirror eyeglass base that can rotate in rotating shaft, described tilting mirror eyeglass base is provided with tilting mirror eyeglass, and described tilting mirror eyeglass base is connected with push rod, and described push rod is connected with linear electric motors.
Described base plate offers the opening entering tilting mirror eyeglass for light.
Described push rod is connected with linear electric motors through adaptor.
Described tilting mirror eyeglass base is connected with banking stop, and described banking stop is equipped with limit switch base.
Described scanning mirror device also comprises the holder be arranged on base plate, and described rotating shaft is set on holder.
Described limit switch base is fixedly mounted on holder.
Described base plate is also provided with the auxiliary camera for remote monitoring image acquisition region and quality.
Compared with prior art, the utility model has following beneficial effect:
The Hyperspectral imager that can realize tilting mirror linear sweep of the present utility model, comprise base plate, described base plate is provided with scanning mirror device, described scanning mirror device comprises hard-wired rotating shaft, described rotating shaft is arranged with the tilting mirror eyeglass base that can rotate in rotating shaft, described tilting mirror eyeglass base is provided with tilting mirror eyeglass, and described tilting mirror eyeglass base is connected with push rod, and described push rod is connected with linear electric motors.When the utility model can make up rotating mirror scanning by the motion state of the acceleration-deceleration-acceleration of linear electric motors, the problem that sweep velocity is surperficial uneven when initiating terminal and end and the interlude of image acquisition scanning, make at the initiating terminal scanned, end or interlude, a constant speed can both be kept to carry out the image of shooting, avoid image and distort.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing rotating mirror scanning structure;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation of scanning mirror device of the present utility model, and is structural representation when getting rid of holder;
Fig. 4 is another angled arrangement schematic diagram of Fig. 3;
Fig. 5 is linear electric motors velocity function relation of the present utility model;
Fig. 6 is image scanning velocity function relation of the present utility model;
Fig. 7 is the funtcional relationship of linear electric motors of the present utility model and image scanning speed;
Mark in figure: 01, scanning mirror, 02, transmitting gear, 03, translation mechanism (translating rails), 04, electromotion focusing drive motor, 05, manual focusing, 06, fixed lens support, 07, imaging lens, 08, drive tilting mirror rotary electric machine, 09, plane mirror, 1, base plate, 2, camera, 3, imaging spectrometer, 4, imaging lens, 5, holder, 6, linear electric motors, 7, adaptor, 8, push rod, 9, rotating shaft, 10, tilting mirror eyeglass base, 11, banking stop, 12, limit switch base, 13, opening, 14, tilting mirror eyeglass, 15, enter the light of tilting mirror eyeglass, 16, the light of imaging spectrometer is entered after tilting mirror lens reflecting.
Embodiment
Below in conjunction with embodiment, the utility model will be further described, and described embodiment is only the utility model part embodiment, is not whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art, not making other embodiments used obtained under creative work prerequisite, belongs to protection domain of the present utility model.
Composition graphs 1, for the structural representation of existing rotating mirror scanning structure, mainly comprise scanning mirror 01, transmitting gear 02, translation mechanism 03, electromotion focusing drive motor 04, manual focusing 05, fixed lens support 06, imaging lens 07, drive tilting mirror rotary electric machine 08 and plane mirror 09, existing plane mirror 09 rotates under the effect driving tilting mirror rotary electric machine 08, but, when corresponding to the initiating terminal of image acquisition and end, scanning mirror rotates, its sweep trace speed can be larger, and when the center section of image acquisition, the linear velocity of its scanning then can be relatively smaller, further, prior art adopts and drives tilting mirror rotary electric machine 08 to drive tilting mirror to rotate by belt or transmission shaft, and the speed that can not solve is inconsistent and cause image to distort.
Composition graphs 2 to Fig. 7, the Hyperspectral imager that can realize tilting mirror linear sweep of the present utility model, comprise base plate 1, described base plate 1 is also provided with imaging lens 4, imaging spectrometer 3 and camera 2, described imaging spectrometer 3 is connected between imaging lens 4 and camera 2, and wherein, imaging lens 4, imaging spectrometer 3 and camera 2 all belong to prior art products, those skilled in the art understands and understands, and does not repeat them here; As a kind of preferred mode of the utility model, face battle array monochrome cameras selected by camera; Described base plate is provided with scanning mirror device, described scanning mirror device is arranged on the front end of imaging lens 4, described scanning mirror device comprises hard-wired rotating shaft 9, described rotating shaft 9 is arranged with the tilting mirror eyeglass base 10 that can rotate in rotating shaft 9, described tilting mirror eyeglass base 10 is provided with tilting mirror eyeglass 14, described tilting mirror eyeglass base 10 is connected with push rod 8, and described push rod 8 is connected with linear electric motors 6.When linear electric motors run to the center of setting stroke, the travelling speed of linear electric motors can be decreased to minimum, and the sweep velocity now required for image scanning end is also just in time minimum; Along with linear electric motors promote tilting mirror continue distally near time, image acquisition end is also distally advanced, also need relatively high speed to maintain the coupling of speed, and linear electric motors in the speed of reference position, this is relatively larger, completed the collection of image like this by reciprocal operation.
The light 15 entering tilting mirror eyeglass enters imaging spectrometer after tilting mirror eyeglass is launched, and forms the light 16 entering imaging spectrometer after tilting mirror lens reflecting.
When the utility model can make up rotating mirror scanning by the motion state of the acceleration-deceleration-acceleration of linear electric motors, the problem that sweep velocity is surperficial uneven when initiating terminal and end and the interlude of image acquisition scanning; Thus make at the initiating terminal of scanning, end or interlude, a constant speed can both be kept to carry out the image of shooting, avoid image and distort.
Composition graphs 5,6 and Fig. 7, the utility model utilizes linear electric motors to promote the rotation of tilting mirror eyeglass, carry out with constant speed in motion process with himself structure, and connected adaptor can show specific motion state under the promotion of its linear electric motors, and the moving sweep state of this similar cosine function just can make up tilting mirror eyeglass scanning time, image acquisition scanning initiating terminal-end and interlude time sweep velocity show uneven problem.This complementary relationship made full use of therebetween carrys out correction image collection hourly velocity can remain constant problem.By reference to the accompanying drawings 7, linear electric motors of the present utility model and image scanning length velocity relation can be found out, thus solve the problem of the pattern distortion caused because tilting mirror eyeglass sweep velocity is inconsistent in prior art.The rotation of linear electric motors of the present utility model changes into rectilinear motion through turbine and worm or gear, is come and gone, drive and make tilting mirror eyeglass complete to-and-fro movement by push-and-pull.
As a kind of preferred mode of the utility model, the linear electric motors produced by Changzhou Meinengte Electric Machine Mfg. Co., Ltd. selected by linear electric motors.
As a kind of preferred mode of the utility model, described base plate 1 offers the opening 13 entering tilting mirror eyeglass 14 for light.
Described push rod 8 is connected with linear electric motors 6 through adaptor 7.
Described tilting mirror eyeglass base 10 of the present utility model is connected with banking stop 11, and described banking stop 11 is equipped with limit switch base 12, by banking stop 11 and limit switch base 12 acting in conjunction, realizes spacing effect, improves practicality of the present utility model.
As the mode of a kind of selection of the utility model, described scanning mirror device also comprises the holder 5 be arranged on base plate 1, and described rotating shaft 9 is set on holder 5; Described limit switch base 12 is fixedly mounted on holder 5.
Base plate of the present utility model is also provided with the auxiliary camera for remote monitoring image acquisition region and quality, by auxiliary camera, Real-Time Monitoring and monitoring is carried out to image acquisition region and quality, improve practicality of the present utility model; Wherein auxiliary camera belongs to prior art products, and those skilled in the art understands and understands, and does not repeat them here.
Embodiment one
The Hyperspectral imager that can realize tilting mirror linear sweep of the present embodiment, comprise base plate, described base plate is provided with scanning mirror device, described scanning mirror device comprises hard-wired rotating shaft, described rotating shaft is arranged with the tilting mirror eyeglass base that can rotate in rotating shaft, described tilting mirror eyeglass base is provided with tilting mirror eyeglass, and described tilting mirror eyeglass base is connected with push rod, and described push rod is connected with linear electric motors.
Embodiment two
The Hyperspectral imager that can realize tilting mirror linear sweep of the present embodiment, comprise base plate, described base plate is provided with scanning mirror device, described scanning mirror device comprises hard-wired rotating shaft, described rotating shaft is arranged with the tilting mirror eyeglass base that can rotate in rotating shaft, described tilting mirror eyeglass base is provided with tilting mirror eyeglass, and described tilting mirror eyeglass base is connected with push rod, and described push rod is connected with linear electric motors; Described base plate offers the opening entering tilting mirror eyeglass for light.
Embodiment three
The Hyperspectral imager that can realize tilting mirror linear sweep of the present embodiment, comprise base plate, described base plate is provided with scanning mirror device, described scanning mirror device comprises hard-wired rotating shaft, described rotating shaft is arranged with the tilting mirror eyeglass base that can rotate in rotating shaft, described tilting mirror eyeglass base is provided with tilting mirror eyeglass, and described tilting mirror eyeglass base is connected with push rod, and described push rod is connected with linear electric motors; Described base plate offers the opening entering tilting mirror eyeglass for light; Described push rod is connected with linear electric motors through adaptor.
Embodiment four
On the basis of above-mentioned any embodiment, described tilting mirror eyeglass base is connected with banking stop, and described banking stop is equipped with limit switch base.
Embodiment five
On the basis of embodiment four, described scanning mirror device also comprises the holder be arranged on base plate, and described rotating shaft is set on holder.
Embodiment six
On the basis of embodiment five, described limit switch base is fixedly mounted on holder.
Embodiment seven
On the basis of above-mentioned any embodiment, base plate is also provided with the auxiliary camera for remote monitoring image acquisition region and quality.
Claims (7)
1. one kind can realize the Hyperspectral imager of tilting mirror linear sweep, comprise base plate, described base plate is provided with scanning mirror device, it is characterized in that, described scanning mirror device comprises hard-wired rotating shaft, described rotating shaft is arranged with the tilting mirror eyeglass base that can rotate in rotating shaft, and described tilting mirror eyeglass base is provided with tilting mirror eyeglass, described tilting mirror eyeglass base is connected with push rod, and described push rod is connected with linear electric motors.
2. the Hyperspectral imager that can realize tilting mirror linear sweep according to claim 1, is characterized in that, described base plate offers the opening entering tilting mirror eyeglass for light.
3. the Hyperspectral imager that can realize tilting mirror linear sweep according to claim 2, is characterized in that, described push rod is connected with linear electric motors through adaptor.
4. the Hyperspectral imager that can realize tilting mirror linear sweep according to claim 3, is characterized in that, described tilting mirror eyeglass base is connected with banking stop, and described banking stop is equipped with limit switch base.
5. the Hyperspectral imager that can realize tilting mirror linear sweep according to claim 4, is characterized in that, described scanning mirror device also comprises the holder be arranged on base plate, and described rotating shaft is set on holder.
6. the Hyperspectral imager that can realize tilting mirror linear sweep according to claim 5, is characterized in that, described limit switch base is fixedly mounted on holder.
7. the Hyperspectral imager that can realize tilting mirror linear sweep according to claim 1-6, is characterized in that, described base plate is provided with the auxiliary camera for remote monitoring image acquisition region and quality.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942811.3U CN205102919U (en) | 2015-11-24 | 2015-11-24 | Hyperspectral imager system of mirror linear trace can realize changeing |
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| CN201520942811.3U CN205102919U (en) | 2015-11-24 | 2015-11-24 | Hyperspectral imager system of mirror linear trace can realize changeing |
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| CN205102919U true CN205102919U (en) | 2016-03-23 |
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| CN201520942811.3U Active CN205102919U (en) | 2015-11-24 | 2015-11-24 | Hyperspectral imager system of mirror linear trace can realize changeing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 58-1-108, Feihong Road, Nanhu Avenue, Liangxi District, Wuxi City, Jiangsu Province, 214000 Patentee after: Jiangsu Shuangli Hepu Technology Co.,Ltd. Address before: No.18 Xingguang Middle Road, Chengdu Economic and Technological Development Zone (Longquanyi District), Sichuan 610199 Patentee before: SICHUAN DUALIX SPECTRAL IMAGING TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |