CN208383288U - The visual vibration measuring device of both ends support solar wing - Google Patents
The visual vibration measuring device of both ends support solar wing Download PDFInfo
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- CN208383288U CN208383288U CN201820975864.9U CN201820975864U CN208383288U CN 208383288 U CN208383288 U CN 208383288U CN 201820975864 U CN201820975864 U CN 201820975864U CN 208383288 U CN208383288 U CN 208383288U
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- solar wing
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- binocular vision
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- high speed
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Abstract
The utility model discloses a kind of visual vibration measuring devices of both ends support solar wing, described device includes singly spreading out solar wing and vibration detection mechanism, the both ends support for singly spreading out solar wing is fixed, the vibration detection mechanism includes two groups of binocular vision systems and two truss, it is arranged in parallel before and after described two truss, two groups of binocular vision systems and two truss correspond, and every group of binocular vision system is arranged on corresponding truss, before two groups of binocular vision systems singly spread out solar wing for detection, the vibration detection index point region of rear upper surface.The utility model fixes the both ends support for singly spreading out solar wing, and by two groups of binocular vision system settings on two front and back truss disposed in parallel, the vibration detection index point region for the front and rear portions upper surface for singly spreading out solar wing is detected, have the advantages that non-contact, response is fast, it can be realized the precise measurement for singly spreading out solar wing vibration, the formula that avoids contact with measures brought error.
Description
Technical field
The utility model relates to a kind of vibration measurement device, especially a kind of visual vibration measurement of both ends support solar wing
Device belongs to vibration measurement field.
Background technique
The complexity of the rapid development of aerospace industry, the task that spacecraft is undertaken is continuously increased, spacecraft towards it is low just
Degree, flexibility, enlargement trend development, the big flexible big feature for being known as modern spacecraft.Flexible structure is relative to rigidity
Structure has many advantages, such as that light weight, low energy consumption, high-efficient, flexible operation, but the intrinsic frequency of flexible structure is low, low frequency modal
The features such as vibration is easily ignited limits its application and development in certain fields.
Modern spacecraft has the large-size pliable structures such as solar energy sailboard mostly, has modal damping small, is excited to be also easy to produce
Substantially the characteristics of sustained vibration.By make spacecraft band payload work normally, it is necessary to effectively inhibit flexible body vibration, and
Vibration measurement is the prerequisite of vibration suppression.The hot spot of the research of vibration measurement at present is broadly divided into: intelligence structure, acceleration,
Angular speed formula, optical measurement three categories.
Flexible thin-film battery is due to using raw material few, high, at low cost, light-weight and flexible of process integration etc.
Characteristic has unique development space in space technology, the construction fields such as photovoltaic and portable wearable photovoltaic device.It is flexible
Thin-film solar cells mainly has silicon substrate, copper indium gallium selenide and cadmium telluride.The silicon-based technologies relative maturity in hull cell, but it is soft
Property silicon based cells also lack the core technology and equipment of roll-to-roll large-scale production at home.
Non-contact measurement compares traditional sensor contact measurement and has many good qualities.Non-contact measurement will not influence
The dynamic property of measurand, will not because of influencing its normal work on testee additional mass, to measurand without
Damage and strong antijamming capability.But the precision of non-contact measurement is generally lower than contact type measurement.Non-contact measurement is
A kind of simple and effective vibration measuring method, common are the methods of laser vibration measurer, laser sensor, binocular vision system,
In, the binocular vision system vibration measuring method that is made of two high speed cameras with image procossing and analytical technology mature,
Increasingly become a kind of simple and convenient vibration measuring method with very high use value.Binocular vision system vibration measuring method has very
Mostly a little: firstly, this method structure is simple, not needing laser light source and other auxiliary devices；Secondly, high speed camera measurement vibration
Dynamic is a kind of multimetering method, and compared to the method for some spot measurements, high speed camera measurement vibration is measuring multiple points
Mode variation when with very big advantage, as long as the resolution ratio of high speed camera and filming frequency are sufficiently high, the model of shooting
Enclose sufficiently large, it is only necessary to make several upper mark points inside tested range, it can inside a range precise measurement it is more
The vibration of a point obtains the modal information of multiple points, finally, binocular vision system can be to the multistage mould of the vibration of testee
State is decoupled, and complicated multi-modes can be reduced to the superposition of multiple first-order modals, and the information of vibration is more intuitive
Show.
Machine vision originates from photogrammetry and statistical-simulation spectrometry.The 1970s, mid-term was to the initial stage eighties,
It is theoretical that Massachusetts Institute Technology professor David proposes completely new machine vision.Research point of the David NI Vision Builder for Automated Inspection
For three levels: first is computer theory level, second be indicate with algorithm level, third is hardware realization.In first layer
In secondary, vision process is divided into three primary vision, intermediate vision and high-level vision ranks by David from bottom to top.The theory is
Machine vision becomes a subject and haves laid a good foundation.Therefore, since the 1980s, machine vision is lifted in the whole world
The upsurge of research is played.In theory, the research of machine vision not yet forms a complete theoretical system；Technically
It says, many aspects of machine vision are all not up to actual application level.
Utility model content
Purpose of the utility model is to solve the defects of the above-mentioned prior art, provide a kind of both ends support solar wing
Visual vibration measuring device, the both ends support which will singly spread out solar wing fixes, and two groups of binocular vision systems set
It sets on two front and back truss disposed in parallel, using two groups of binocular vision systems to table in the front and rear portions for singly spreading out solar wing
The vibration detection index point region in face is detected, and is had the advantages that non-contact, response is fast, be can be realized and singly spread out solar wing vibration
Dynamic precise measurement, the formula that avoids contact with measure brought error.
The purpose of this utility model can be reached by adopting the following technical scheme that:
Both ends support the visual vibration measuring device of solar wing, including singly spread out solar wing and vibration detection mechanism, described
The both ends support for singly spreading out solar wing is fixed, and the vibration detection mechanism includes two groups of binocular vision systems and two truss, institute
It states two truss front and backs to be arranged in parallel, two groups of binocular vision systems and two truss correspond, and every group of binocular vision
System is arranged on corresponding truss, and two groups of binocular vision systems are for detecting the front and rear portions upper surface for singly spreading out solar wing
Vibration detection index point region.
Further, the solar wing that singly spreads out includes that fixation member, unwinding mem-ber, solar battery thin film and two fill
Gas cantilever crane, described two inflation cantilever cranes are symmetrical set, and the both ends of two inflation cantilever cranes respectively with fixation member, uncoiling portion
Part connection, the solar battery thin film are arranged between two inflation cantilever cranes, and the both ends of solar battery thin film respectively with
Fixation member, unwinding mem-ber connection.
Further, described device further includes support platform, the surface holding for singly spreading out solar wing and support platform
Parallel relation, the fixation member are fixed in support platform by two vertical square bars, and the unwinding mem-ber is perpendicular by two
Histogram bar is fixed in support platform, and described two truss pass through corner fittings respectively and are fixed on the inside of support platform.
Further, the support platform includes substrate and four support legs, and the fixation member passes through two vertical sides
Bar is fixed on upper surface of base plate, and the unwinding mem-ber is fixed on upper surface of base plate, described two truss by two vertical square bars
It is fixed on the inside of substrate by corner fittings respectively, four support legs are fixedly connected with the lower surface of substrate.
Further, every group of binocular vision system includes two high speed cameras, a guide rail, two sliding blocks and two clouds
Platform, the guide rail are fixed on corresponding truss, and described two sliding blocks are slidably arranged on guide rail, two high speed cameras,
Two holders and two sliding blocks are to correspond, and every high speed camera is arranged on corresponding holder, and each holder is fixed on
On corresponding sliding block；
Wherein the alignment lens list of two high speed cameras of one group of binocular vision system spreads out the front upper surface of solar wing
Vibration detection index point region；
The alignment lens list of two high speed cameras of another group of binocular vision system spreads out the rear upper surface of solar wing
Vibration detection index point region.
Further, in every group of binocular vision system, the horizontal distance between two high speed cameras is 400mm, and
The camera lens of two high speed cameras is 800mm~1000mm with the distance between solar wing upper surface is singly spread out.
Further, each truss includes a horizon bar and two vertical bars, and the both ends of the horizon bar are respectively with two
One end of root vertical bar connects, and the other end of two vertical bars is fixed.
Further, there are four types of shapes, respectively circle, rectangle, triangle for the index point singly spread out on solar wing
And star.
The utility model have compared with the existing technology it is following the utility model has the advantages that
1, the utility model uses two groups of binocular vision systems, the both ends support for singly spreading out solar wing is fixed, and will
The setting of two groups of binocular vision systems is on two front and back truss disposed in parallel, to singly spreading out under the premise of without additive effect
Solar wing carries out contactless vibration measurement, and it is relatively high that thus measurement obtained singly spreads out solar wing vibration information precision.
2, fixation member is fixed in support platform by the utility model by two vertical square bars, and perpendicular by two
Unwinding mem-ber is fixed in support platform by histogram bar, so that solar battery thin film is in the state of tensioning, to make single paving
Solar wing is opened to stablize in gravitational field.
3, two truss are passed through corner fittings respectively and are fixed on the inside of support platform by the utility model, by the pine for controlling corner fittings
Tightly, the distance between the horizon bar of adjustable truss and support platform surface adjust the height of truss, so as to adjust binocular
The shooting height of vision system.
4, two groups of binocular vision systems of the utility model are respectively provided with two high speed cameras, pass through two on moving guide rail
Sliding block, the horizontal position of adjustable two high speed cameras, to change the positional relationship between two high speed cameras, every height
Fast camera is arranged on corresponding holder, can change high speed camera by holder and shoots the angle on surface, to realize more
Point measurement is detected using multimetering mode to singly spreading out solar wing since the volume for singly spreading out solar wing is larger, can
The multi-modes coupled vibrations for singly spreading out solar wing is decoupled, it is accurate to restore the Vibration Condition for singly spreading out solar wing.
5, the binocular vision system that the utility model uses can be with horizontal displacement, can also be with vertical displacement, and can adjust
The shooting angle of whole high speed camera, the calibration and different shape and size of vibrations for singly spreading out solar wing for being conducive to camera are surveyed
Amount obtains the vibration characteristics for more accurately singly spreading out solar wing.
6, the method that the utility model uses index point of different shapes coding, it is ensured that and improve two sets of binocular vision systems
The identification of image and Bonding Problem are arranged particular by the sequence to circle, triangle, rectangle and star symbol point,
It is different from every line flag point of intermediate image lap, the speed and precision of image recognition can be promoted.
Detailed description of the invention
Fig. 1 is the visual vibration measuring device general structure schematic diagram of the utility model embodiment 1.
Fig. 2 is the top view of the visual vibration measuring device of the utility model embodiment 1.
Fig. 3 is the left view of the visual vibration measuring device of the utility model embodiment 1.
Fig. 4 is the top view for singly spreading out solar wing of the utility model embodiment 1.
Fig. 5 is the schematic diagram of wherein one group of binocular vision system of the vibration detection mechanism of the utility model embodiment 1.
Wherein, 1- fixation member, 2- unwinding mem-ber, 3- solar battery thin film, 4- first inflate cantilever crane, and 5- second is inflated
Cantilever crane, 6- support platform, 601- substrate, 602- support leg, the vertical square bar of 7- first, the vertical square bar of 8- second, 9- truss, 10-
First high speed camera, the second high speed camera of 11-, 12- guide rail, the first sliding block of 13-, the second sliding block of 14-, the first holder of 15-, 16-
Second holder, 17- computer.
Specific embodiment
The present invention will be further described in detail with reference to the embodiments and the accompanying drawings, but the implementation of the utility model
Mode is without being limited thereto.
Embodiment 1:
As shown in FIG. 1 to 3, the visual vibration measuring device for present embodiments providing a kind of both ends support solar wing, should
Device includes singly spreading out solar wing and vibration detection mechanism, and the dotted line in Fig. 1 indicates the line relationship between each equipment.
As shown in Figure 1 to 4, the solar wing that singly spreads out is flexible structure, and both ends support is fixed, including fixation member
1, unwinding mem-ber 2, solar battery thin film 3, first inflate cantilever crane 4 and the second inflation cantilever crane 5, unwinding mem-ber 2 and fixation member 1
Respectively as the front and rear ends for singly spreading out solar wing, the first inflation cantilever crane 4 and the second inflation cantilever crane 5 are symmetrical set, and first
The both ends of inflation cantilever crane 4 are connect with the left end of the left end of fixation member 1, unwinding mem-ber 2 respectively, the both ends of the second inflation cantilever crane 5
It is connect respectively with the right end of the right end of fixation member 1, unwinding mem-ber 2, the setting of solar battery thin film 3 inflates cantilever crane 4 first
And second between inflation cantilever crane 5, and the both ends of solar battery thin film 3 middle part with fixation member 1, unwinding mem-ber 2 respectively
Divide connection.
Solar wing is singly spread out to be in gravitational field, since the rigidity of the first inflation cantilever crane 4 and the second inflation cantilever crane 5 is inadequate,
Solar wing is singly spread out in order to stablize support, the visual vibration measuring device of the present embodiment further includes support platform 6, singly spreads out the sun
The surface keeping parallelism relationship of the wing and support platform 6, fixation member 1 are fixed on support platform 6 by two first vertical square bars 7
On, unwinding mem-ber 2 is fixed in support platform 6 by two second vertical square bars 8, specifically, first passes through screw-nut for two
One end of the vertical square bar 7 of root first and two second vertical square bars 8 is fixed in support platform 6, then passes through two right angle branch
The other end of two first vertical square bars 7 is fixedly connected by plate with fixation member 1, and by two right angle supporting plates by two pieces the
The other end of two vertical square bars 8 is fixedly connected with unwinding mem-ber 2, solar wing is singly spread out with support, so that solar battery thin film 3
State in tensioning.
Further, the support platform 6 includes substrate 601 and four support legs 602, and fixation member 1 passes through two pieces the
One vertical square bar 7 is fixed on 601 upper surface of substrate, and unwinding mem-ber 2 is fixed on substrate 601 by two second vertical square bars 8
Surface, four support legs 602 are fixedly connected with the lower surface of substrate 601, and the support of support platform 6 both can be improved and singly spread out the sun
The stability of the wing, and the material of support platform 6 can be saved, reduce the cost of manufacture of support platform 6.
In the present embodiment, support platform 6 is assembled by the aluminum profile that three kinds of length are respectively 4100mm, 1200mm, 500mm
It forms, substrate 601 is one piece of 4320mm × 1320mm × 8mm stainless steel plate, is connect by screw with profile, each of profile
Junction has angle bar to fix；The full-size of flexible solar battery antenna is 3920mm × 1060mm, fixation member 1, the
One inflation cantilever crane 4 and second inflates cantilever crane 5 by aluminium as material；Solar battery thin film 3 is amorphous silicon battery film；Uncoiling
Plastic material stick can be selected in component 2, has certain elasticity.
The vibration detection mechanism includes two groups of binocular vision systems and two truss 9, and two 9 front and backs of truss are set in parallel
It sets, two groups of binocular vision systems and two truss 9 correspond, and every group of binocular vision system is arranged on corresponding truss 9,
That is two groups of binocular vision systems are respectively one group of front binocular vision system and rear set binocular vision system, before
One group of binocular vision system is used to detect the vibration detection index point region of 3 upper surface front of solar battery thin film, behind one
Group binocular vision system is used to detect the vibration detection index point region at 3 upper surface rear portion of solar battery thin film.
Further, each truss 9 is made of aluminum profile comprising a horizon bar and two vertical bars, horizon bar
Both ends are connect with one end of two vertical bars respectively, and the other end of two vertical bars is fixed on the inside of support platform 6, specifically
Ground, the both ends of horizon bar pass through corner fittings respectively and connect with one end of two vertical bars, and the other end of two vertical bars passes through respectively
Corner fittings is fixed on 601 inside of substrate of support platform 6, by elastic, the horizon bar and branch of adjustable truss 9 that control corner fittings
The distance between 601 upper surface of substrate of platform 6 is supportted, that is, the height of truss 9 is adjusted, so as to adjust the shooting of binocular vision system
Highly.
As shown in fig. 1~fig. 5, every group of binocular vision system include including the first high speed camera 10, the second high speed camera 11,
Guide rail 12, the first sliding block 13, the second sliding block 14, the first holder 15 and the second holder 16, guide rail 12 are fixed on the water of corresponding truss 9
On flat bar, the first sliding block 13 and the second sliding block 14 are slidably arranged on guide rail 12, i.e. the first sliding block 13 and the second sliding block 14 can
It is moved on guide rail 12, the first high speed camera 10 is arranged on the first holder 15, and the second high speed camera 11 is arranged in the second holder
On 16, the first holder 15 is fixed on the first sliding block 13, and the second holder 16 is fixed on the second sliding block 14, sliding by mobile first
Block 13 and the second sliding block 14, the horizontal position of adjustable first high speed camera 10 and the second high speed camera 11, to change the
Positional relationship between one high speed camera 10 and the second high speed camera 11 can by adjusting the first holder 15 and the second holder 16
To change the angle of the first high speed camera 10 and the second high speed camera 11 and shooting surface, meet singly spreading out for various shape size
The vibration detection of solar wing needs；The position of high speed camera should make singly to spread out solar wing it is static when detection end face be located substantially at high speed
Viewing field of camera middle position singly spreads out the visual field that solar wing is in high speed camera always when guaranteeing singly to spread out solar wing vibration
In range, guarantee the continuity of measurement, the optical axis of high speed camera and the face of solar battery thin film are vertical, so that high speed camera
It being capable of front its solar battery thin film surface of shooting.
The index point of the present embodiment is white gummed paper, and size is Φ 100mm, and distribution situation is as shown in Fig. 2, be pasted onto the sun
On energy battery thin film 3, the influence to solar wing vibration characteristics is singly spread out is reduced as far as possible, there are four types of shapes altogether for index point, respectively
For circle, rectangle, triangle and star, it is therefore an objective to convenient for the knowledge of image lap taken by two groups of binocular vision systems
Not and splice；Since the length for singly spreading out solar wing is longer, independent one group of binocular vision system can not be detected on all length
Index point vibration information, so adopting two groups of binocular vision systems carries out vibration detections, two groups of binocular vision systems it is visual
Range necessarily has lap, in order to obtain the vibration information for completely singly spreading out solar wing, two groups of binocular vision system shootings
Image spliced, the intermediate lap of solar battery thin film 3 is by four kinds of index points of different shapes by difference
Arrangement mode composed by tag mark coding, convenient for the image recognition and splicing of two groups of binocular vision systems.
Further, the alignment lens solar battery thin film of the first high speed camera 10 of one group of binocular vision system before
The vibration detection index point region of 3 upper surfaces left side front, on the alignment lens solar battery thin film 3 of the second high speed camera 11
The vibration detection index point region of front on the right of surface；The camera lens pair of first high speed camera 10 of rear set binocular vision system
The vibration detection index point region at quasi- 3 upper surface left side rear portion of solar battery thin film, the alignment lens of the second high speed camera 11
The vibration detection index point region at rear portion on the right of 3 upper surface of solar battery thin film；The high speed camera of two groups of binocular vision systems
High frequency shooting is synchronized to the vibration detection index point region of the front and rear portions upper surface of solar battery thin film 3, collects figure
As sequence, it is sent to computer 17, the array of a M × N is expressed as in computer 17, wherein each element is known as picture
Element, numerical value indicate the brightness of the point, i.e. gray value, by demarcating to high speed camera, determine the several of the space object point
What position corresponds to the correlation between imaging point, identification and reconstruction object with the space object point in the picture.
Further, the water in every group of binocular vision system, between the first high speed camera 10 and the second high speed camera 11
Flat distance is 400mm, and the distance between the camera lens of the first high speed camera 10 and 3 upper surface of solar battery thin film are 800mm
~1000mm, the distance between the camera lens of the second high speed camera 11 and 3 upper surface of solar battery thin film also for 800mm~
1000mm。
In the present embodiment, the first high speed camera 10 and the second high speed camera 11 select wound connection in Wuhan to reach the limited public affairs of science and technology
The high speed camera of the model Memrecam HX-3E of department, possesses 5,000,000 pixels, and under the full resolution frame speed up to 2000
Frame/second, frame speed assigns 9220 frames/second up to 4670 frames/second, 1,000,000 pixels under full HD pixel, inside saves as 64GB, operating temperature
Range is 0-40 degrees Celsius, and weight is about 5.9 kilograms, and the power supply needed is 100-240V AC-1.5A, 50-60Hz.
The present embodiment additionally provides a kind of visual vibration measurement method, and this method is realized based on above-mentioned apparatus, including following
Step:
Step 1: artificially generating an excitation, excitation singly spreads out the vibration of solar wing；
Step 2: during singly spreading out solar wing vibration, by the first high speed camera 10 of two groups of binocular vision systems
It is synchronized with vibration detection index point region of second high speed camera 11 to the front and rear portions upper surface of solar battery thin film 3
High frequency shooting, collects image sequence, is sent to computer 17, image sequence is expressed as the number of a M × N in computer 17
Group, wherein each element is known as pixel, and numerical value indicates the brightness of the point, i.e. gray value；
Step 3: computer 17 reads first high speed camera 10 of two groups of binocular vision systems and the second high speed camera 11 is clapped
The image taken the photograph, by Zhang Zhengyou calibration method to the first high speed camera 10 and the second high speed camera 11 of two groups of binocular vision systems
It is demarcated, extracts the coordinate of image spot feature calculation index point, determine the geometric position and the space of the space object point
Object point corresponds to the correlation between imaging point, identification and reconstruction object in the picture, and carries out visualization processing, by result
It presents over the display.
In conclusion the utility model uses two groups of binocular vision systems, the both ends for singly spreading out solar wing are supported solid
It is fixed, and by two groups of binocular vision system settings on two front and back truss disposed in parallel, under the premise of without additive effect
Contactless vibration measurement is carried out to solar wing is singly spread out, it is opposite that thus measurement obtained singly spreads out solar wing vibration information precision
It is higher.
The above, only the utility model patent preferred embodiment, but the protection scope of the utility model patent is simultaneously
Not limited to this, anyone skilled in the art is in the range disclosed in the utility model patent, according to this
Technical solution and its utility model design of utility model patent are subject to equivalent substitution or change, belong to the utility model patent
Protection scope.
Claims (8)
1. the visual vibration measuring device of both ends support solar wing, it is characterised in that: including singly spreading out solar wing and vibration detection
Mechanism, the both ends support for singly spreading out solar wing are fixed, and the vibration detection mechanism includes two groups of binocular vision systems and two
A truss, described two truss front and backs are arranged in parallel, and two groups of binocular vision systems and two truss correspond, and every group
Binocular vision system is arranged on corresponding truss, and two groups of binocular vision systems are for detecting the front and rear portions for singly spreading out solar wing
The vibration detection index point region of upper surface.
2. the visual vibration measuring device of support solar wing in both ends according to claim 1, it is characterised in that: single paving
Opening solar wing includes fixation member, unwinding mem-ber, solar battery thin film and two inflation cantilever cranes, and described two inflation cantilever cranes are left
The right side is symmetrical arranged, and the both ends of two inflation cantilever cranes are connect with fixation member, unwinding mem-ber respectively, the solar battery thin film
It is arranged between two inflation cantilever cranes, and the both ends of solar battery thin film are connect with fixation member, unwinding mem-ber respectively.
3. the visual vibration measuring device of support solar wing in both ends according to claim 2, it is characterised in that: described device
It further include support platform, the surface keeping parallelism relationship for singly spreading out solar wing and support platform, the fixation member passes through
Two vertical square bars are fixed in support platform, and the unwinding mem-ber is fixed in support platform by two vertical square bars, institute
It states two truss and passes through corner fittings respectively and be fixed on the inside of support platform.
4. the visual vibration measuring device of support solar wing in both ends according to claim 3, it is characterised in that: the support
Platform includes substrate and four support legs, and the fixation member is fixed on upper surface of base plate by two vertical square bars, described to open
It rolls up component and is fixed on upper surface of base plate by two vertical square bars, described two truss pass through corner fittings respectively and are fixed in substrate
Side, four support legs are fixedly connected with the lower surface of substrate.
5. the visual vibration measuring device of support solar wing in both ends according to claim 1-4, it is characterised in that:
Every group of binocular vision system includes two high speed cameras, a guide rail, two sliding blocks and two holders, and the guide rail is fixed on pair
On the truss answered, described two sliding blocks are slidably arranged on guide rail, and two high speed cameras, two holders and two sliding blocks are equal
To correspond, every high speed camera is arranged on corresponding holder, and each holder is fixed on corresponding sliding block；
Wherein the alignment lens list of two high speed cameras of one group of binocular vision system spreads out the vibration of the front upper surface of solar wing
Dynamic detection index point region；
The alignment lens list of two high speed cameras of another group of binocular vision system spreads out the vibration of the rear upper surface of solar wing
Detect index point region.
6. the visual vibration measuring device of support solar wing in both ends according to claim 5, it is characterised in that: described every group
In binocular vision system, horizontal distance between two high speed cameras is 400mm, and the camera lens of two high speed cameras with singly spread out
The distance between solar wing upper surface is 800mm~1000mm.
7. the visual vibration measuring device of support solar wing in both ends according to claim 1-4, it is characterised in that:
Each truss includes a horizon bar and two vertical bars, and the both ends of the horizon bar connect with one end of two vertical bars respectively
It connects, the other end of two vertical bars is fixed.
8. the visual vibration measuring device of support solar wing in both ends according to claim 1-4, it is characterised in that:
There are four types of shapes, respectively circle, rectangle, triangle and star for the index point singly spread out on solar wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820975864.9U CN208383288U (en) | 2018-06-25 | 2018-06-25 | The visual vibration measuring device of both ends support solar wing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820975864.9U CN208383288U (en) | 2018-06-25 | 2018-06-25 | The visual vibration measuring device of both ends support solar wing |
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| CN208383288U true CN208383288U (en) | 2019-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444365A (en) * | 2020-11-30 | 2021-03-05 | 哈尔滨工业大学 | Satellite solar wing substrate unfolding low-frequency modal testing method based on force hammer swing method and laser Doppler method |
-
2018
- 2018-06-25 CN CN201820975864.9U patent/CN208383288U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444365A (en) * | 2020-11-30 | 2021-03-05 | 哈尔滨工业大学 | Satellite solar wing substrate unfolding low-frequency modal testing method based on force hammer swing method and laser Doppler method |
| CN112444365B (en) * | 2020-11-30 | 2023-08-29 | 哈尔滨工业大学 | Satellite solar wing substrate unfolding low-frequency mode testing method |
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