CN107420710B - A kind of camera test accessory - Google Patents
A kind of camera test accessory Download PDFInfo
- Publication number
- CN107420710B CN107420710B CN201710838471.3A CN201710838471A CN107420710B CN 107420710 B CN107420710 B CN 107420710B CN 201710838471 A CN201710838471 A CN 201710838471A CN 107420710 B CN107420710 B CN 107420710B
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000010276 construction Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 abstract description 3
- 238000011156 evaluation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 241000532370 Atla Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a kind of camera test accessory, including supporting mechanism and clamping device, supporting mechanism includes pedestal and slide unit and support plate along pedestal sliding；Slide unit and support distance between plates are adjustable；Support plate upper surface is equipped with four portable stanchions and connects supporting plate；It is equipped with second bearing in the middle part of supporting plate, is slab construction at the top and bottom of the inner ring of second bearing, one side of supporting plate is equipped with laser emitter, and light emission direction is parallel to the first track；Clamping device is fixed at the top of second bearing inner ring；Clamping device includes pedestal, transverse slat, vertical plate；Vertical plate side is equipped with vibrating motor；Transverse slat is installed in the middle part of two vertical plates and forms " H " type structure with two vertical plates；Top plate is horizontally fixed between two vertical plates by the first screw through strip-shaped hole.The present invention is for including focusing, shake in camera imaging performance, and the subtest and Performance Evaluation of the parameters such as depth of field, structure is simple, easy to use, at low cost, and stability is high.
Description
Technical field
The present invention relates to a kind of testing auxiliary device, specifically a kind of camera test accessory.
Background technique
With the rapid development of civilian video camera and smart phone, the activity participated at the whole people of photographing,
Even the product of civil, the requirement to imaging is also increasingly being improved, and is mainly reflected in color rendition, is focused speed
In the requirement of the performances such as degree, optical anti-vibration.On the one hand the promotion of these performances depends on the basic property of scheme, on the other hand
Later development depending on camera manufacturer.
The performance indicator of camera is various, split to send, and the project of exploitation debugging and later period test is also extremely complex, because
This, simplifies testing process, improves the accuracy and efficiency of test method, seize market for quickly putting out a new product, and has weight
Want meaning.
In traditional civil camera test, since the performance requirement to camera is not stringent, often only need phase
Machine is placed on tripod, shoots stationary body.And with advances in technology with the increasingly raising of customer requirement, such test
Method can not measure the indexs such as the exposure regulation performance, focusing speed, anti-shudder performance of camera.Therefore, it is necessary to design a kind of performance
More powerful camera test accessory.
Summary of the invention
The present invention is exactly to solve the above-mentioned problems, to provide a kind of camera test accessory.
The present invention is implemented according to following technical scheme.
A kind of camera test accessory, including supporting mechanism and clamping device, the supporting mechanism include pedestal and portion
The slide unit and support plate being deployed on above pedestal, pedestal upper surface, which is recessed downwards, forms two the first tracks being parallel to each other, and two
Rack gear is equipped between first track；Slide unit bottom is equipped with pulley pillar, and pulley posts bottom is equipped with pulley, and pulley is placed in first
In track；Slide unit bottom is additionally provided with third motor, the nested gear being engaged with rack on the rotor of third motor；It is set at the top of slide unit
There are the no less than two groups slide bars for running through support plate；Slide unit center of top is equipped with the stud for running through support plate, and two nuts are embedding
It is placed on stud and is located at support plate two sides up and down；Support plate upper surface is equipped with four portable stanchions, the portable stanchion
The push rod top of first motor including being fixed on support plate upper surface, first motor is equipped with first bearing, and first bearing passes through
Hinge connects supporting plate；It is equipped with second bearing in the middle part of supporting plate, is slab construction at the top and bottom of the inner ring of second bearing, bottom is solid
Surely there is the second runner, supporting plate lower surface edge forms shrinkage pool, the second motor is equipped in shrinkage pool, is fixed on the rotor of the second motor
First runner, the first runner and the second runner pass through transmission band connection；It is in rectangular arranged that four are formed at the top of second bearing inner ring
The first fixation hole, be additionally provided with two embedded posts；One side of supporting plate is equipped with laser emitter, and light emission direction is parallel to first
Track；
The clamping device is fixed at the top of second bearing inner ring；Clamping device includes pedestal, transverse slat, vertical plate；The bottom
Seat upper surface is equipped with the second fixation hole, and side is equipped with the 4th fixation hole；The vertical plate bottom sides form the 5th fixation hole bottom surface
Strip-shaped hole is formed, spring is equipped in strip-shaped hole, spring one end is fixed at the top of second bearing inner ring, and the other end is fixed on strip-shaped hole
Middle part, embedded post are passed through from spring；Vertical plate side is equipped with vibrating motor；Transverse slat be installed in the middle part of two vertical plates and with two vertical plate shapes
At " H " type structure；Perforative strip-shaped hole is formed at vertical plate top, and top plate is horizontally fixed on two vertical plates through strip-shaped hole by the first screw
Between, recess forms the second track downwards in the middle part of transverse slat upper surface and top plate lower surface, and side forms perforation to the second track
Third fixation hole, third screw run through third fixation hole；Four the second screws sequentially pass through the 4th fixation hole and the 5th respectively
Vertical plate and pedestal are fastenedly connected by fixation hole, and the second screw of four additional sequentially passes through the second fixation hole and the first fixation hole respectively
Pedestal and inner ring are fastenedly connected.
The slide bar bottom end is fixed on slide unit, and slide bar is flexibly connected with support plate, and junction coats lubricating oil.
The hinge includes the connector being connected with first bearing and the fixing seat for being installed on supporting plate bottom.
First fixation hole, the second fixation hole, the 4th fixation hole, the 5th fixation hole are that internal diameter and screw pitch are identical interior
Threaded hole.
First screw and third screw one end are respectively formed the knob for facilitating hand adjustment, and the third screw other end is equipped with
Rubber sheet gasket.
It further include the control system for driving first motor, the second motor, third motor, vibrating motor in this equipment.
The pulley limit plate to fall off from track for anti-limited slip wheel is equipped with above the pulley.
Present invention obtains following beneficial effects.
The present invention provides a kind of camera test accessory, this equipment is used to substitute three feet in conventional test methodologies
Frame.Camera (mobile phone) is fastened by clamping device, and is installed on supporting mechanism.This equipment manually adjusts camera
Highly, guarantee that camera lens primary optical axis is aligned with the center of scene；By controlling third motor, slides back and forth slide unit along pedestal, change
The distance between phase convertor and scene are used for assisted focused test；By frequently changing the stepping length of first motor push rod, change
Become supporting plate inclination angle, is used for assisted focused test and jitter test；Make camera with high speed and irregular side by vibrating motor
Formula vibration, is used for aid imaging jitter test.The configuration of the present invention is simple, it is easy to operate, to implementable a variety of surveys after camera positioning
Method for testing reduces workload, improves testing efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of supporting mechanism in the present invention；
Fig. 2 is the top view of slide unit and pedestal in the present invention；
Fig. 3 is the left view of slide unit and support plate in the present invention；
Fig. 4 is the left view of supporting plate in the present invention；
Fig. 5 is the structural schematic diagram of portable stanchion in the present invention；
Fig. 6 is the structural schematic diagram of clamping device in the present invention；
Fig. 7 is the sectional view of transverse slat in the present invention；
Fig. 8 is the top view of supporting mechanism in the present invention；
Fig. 9 is supporting mechanism and clamping device junction structural schematic diagram in the present invention.
Wherein, 1. pedestal；2. the first track；3. rack gear；4. slide unit；5. slide bar；6. support plate；7. supporting plate；8. activity branch
Column；801. first motor；802. first bearing；803. connector；804. fixing seat；805. push rod；9. second bearing；901. outer
Circle；902. inner ring；10. embedded post；11. the first fixation hole；12. the first runner；13. the second motor；14. transmission belt；15. top
Plate；16. vertical plate；17. pedestal；18. the second fixation hole；19. the first screw；20. third fixation hole；21. vibrating motor；22. the
Two screws；23. transverse slat；24. the second track；25. the 4th fixation hole；26. the 5th fixation hole；27. the second runner；28. third spiral shell
Nail；29. spring；30. stud；31. nut；32. pulley pillar；33. pulley limit plate；34. pulley；35. third motor；36.
Gear.
Specific embodiment
Referring to the drawings and embodiment carries out further technology explanation to the present invention.
As shown in figure 1-9, a kind of camera test accessory, including supporting mechanism and clamping device, the supporting mechanism
Including pedestal 1 and it is deployed in the slide unit 4 and support plate 6 of the top of pedestal 1, the formation two that be recessed downwards of 1 upper surface of pedestal is mutually put down
The first capable track 2 is equipped with rack gear 3 between two the first tracks 2；4 bottom of slide unit is equipped with pulley pillar 32,32 bottom of pulley pillar
Portion is equipped with pulley 34, and pulley 34 is placed in the first track 2；4 bottom of slide unit is additionally provided with third motor 35, and third motor 35 turns
Nested and 3 meshed gears 36 of rack gear on son；The no less than two groups slide bars 5 for running through support plate 6 are equipped at the top of slide unit 4；Slide unit 4 pushes up
Portion center is equipped with the stud 30 for running through support plate 6, and two nuts 31 are nested on stud 30 and are located in support plate 6
Lower two sides；6 upper surface of support plate is equipped with four portable stanchions 8, and the portable stanchion 8 includes being fixed on 6 upper surface of support plate
First motor 801,805 top of push rod of first motor 801 are equipped with first bearing 802, and first bearing 802 is connected by a hinge support
Plate 7；It is equipped with second bearing 9 in the middle part of supporting plate 7, is slab construction at the top and bottom of the inner ring 902 of second bearing 9, bottom is fixed
There is the second runner 27,7 lower surface edge of supporting plate forms shrinkage pool, the second motor 13 is equipped in shrinkage pool, on the rotor of the second motor 13
It is fixed with the first runner 12, the first runner 12 is connect with the second runner 27 by transmission belt 14；9 inner ring of second bearing, 902 top
Four the first fixation holes 11 in rectangular arranged are formed, two embedded posts 10 are additionally provided with；7 side of supporting plate is equipped with Laser emission
Device, light emission direction are parallel to the first track 2；
The clamping device is fixed on 9 inner ring of second bearing, 902 top；Clamping device includes pedestal 17, transverse slat 23, vertical plate
16；17 upper surface of pedestal is equipped with the second fixation hole 18, and side is equipped with the 4th fixation hole 25；The 16 bottom sides shape of vertical plate
Strip-shaped hole is formed at 26 bottom surface of the 5th fixation hole, is equipped with spring 29 in strip-shaped hole, 9 inner ring of second bearing is fixed in 29 one end of spring
902 tops, the other end are fixed in the middle part of strip-shaped hole, and embedded post 10 is passed through from spring 29；16 side of vertical plate is equipped with vibrating motor
21；Transverse slat 23 is installed on two vertical plates, 16 middle part and forms " H " type structure with two vertical plates 16；Perforative item is formed at 16 top of vertical plate
Top plate 15 is horizontally fixed between two vertical plates 16 by shape hole, the first screw 19 through strip-shaped hole, 23 upper surface of transverse slat and top plate 15
Recess forms the second track 24 downwards in the middle part of lower surface, and side forms the third fixation hole 20 of perforation to the second track 24, the
Three screws 28 run through third fixation hole 20；Four the second screws 22 sequentially pass through the 4th fixation hole 25 and the 5th fixation hole 26 respectively
Vertical plate 16 and pedestal 17 are fastenedly connected, it is fixed that the second screw of four additional 22 sequentially passes through the second fixation hole 18 and first respectively
Pedestal 17 and inner ring 902 are fastenedly connected by hole 11.
5 bottom end of slide bar is fixed on slide unit 4, and slide bar 5 is flexibly connected with support plate 6, and junction coats lubricating oil.
The hinge includes the connector 803 being connected with first bearing 802 and the fixing seat 804 for being installed on 7 bottom of supporting plate.
First fixation hole 11, the second fixation hole 18, the 4th fixation hole 25, the 5th fixation hole 26 are internal diameter and screw pitch
Identical internal thread hole.
First screw 19 and 28 one end of third screw are respectively formed the knob for facilitating hand adjustment, and third screw 28 is another
End is equipped with rubber sheet gasket.
It further include for driving first motor 801, the second motor 13, third motor 35, vibrating motor 21 in this equipment
Control system.
The pulley limit plate 33 to fall off from track for anti-limited slip wheel 34 is equipped with above the pulley 34.
Preparation before use:
1, pedestal 1 is placed on horizontal desk, clamping device is installed on supporting mechanism, and by pedestal 17 and is supported
Together, vertical plate 16 tightens together fastening with pedestal 17, and the test of clarity card or color for assisting clarity are also
The colour atla of original test is placed in immediately ahead of pedestal at 1 ~ 3 meter.
2, such as measurand is the finished product camera being completed, and camera is placed between top plate 15 and transverse slat 23, is unclamped
First screw 19 moves down top plate 15 and is allowed to clamp camera together with transverse slat 23；Lock the first screw 19.If measurand is built-in
In the camera mould group in mobile phone, phone housing lower edges are respectively placed in the second track 24 positioned at top plate 15 and transverse slat 23
It is interior, the knob of third screw 28 is rotated, the rubber sheet gasket of the other end and the side wall of the second track 24 clamp mobile phone, rubber surface
Frictional force is big, prevents mobile phone from falling off；If measurand is the semi-finished product camera wiring board not yet assembled, it is also possible to same method
It is clamped；Finally lock the first screw 19.
3, the relative distance L measured between pedestal 1 and colour atla or clarity card is originally set if the length of the first track 2 is d
Standby measurable object distance range is between [L, L+d].According to test request, the length of L is adjusted, object distance range is made to meet experiment
It is required that.
4, the relative altitude H of laser emitter and optical center is measured, laser emitter 37 is opened, falls in hot spot clearly
On degree card or colour atla.The left-right position for adjusting pedestal 1 first, is located at hot spot on the vertical divider of clarity card or colour atla；
Secondly the position of manual adjustment nut 31,6 level of support plate is raised or is reduced, until in hot spot and clarity card or colour atla
Heart point spacing is equal to H.
Focusing speed test:
The revolving speed of third motor 35 is set first as most at a slow speed, so that slide unit 4 and its all above component are transported along pedestal 1
Dynamic, camera mould group connects the PC machine of commissioning staff by debugging cable, controls third motor 35 forward or reverse, third motor 35
For stepper motor, if the functional relation of its step number s and object distance D is D=f(s), which is not difficult to establish by actual measurement.Change
The distance between camera and target scene, commissioning staff is by PC machine software real time inspection image sharpness value R, to depict with s
For abscissa, using R as the reference curve of the sharpness value benchmark of ordinate.
The revolving speed of third motor 35 is promoted into one or more gears, repeats the above process, depicts under different rotating speeds
Sharpness value curve, and compared with a reference value.By optimizing focusing algorithm, so that the sharpness value of third motor 35 at high speed
Reference curve of the curve as close possible to sharpness value benchmark.
N number of different number of steps characteristic value point, including P1, P2 ... PN are chosen, control third motor is successively moved to this
Corresponding coordinate position is put, residence time t records the sharpness value reading at each characteristic point and make when the value of t is 3 seconds
On the basis of；The numerical value for reducing t re-measures sharpness value, and compares with a reference value, according to the difference between the two, can determine that focusing algorithm
Superiority and inferiority.
Periodic jitter test:
Four first motors 801 are successively labeled as M1, M2, M3, M4, wherein M1 and M3, M2 and M4 are in diagonal line position
It sets, first motor 801 is linear motor.Second motor 13 is stepper motor.
Firstly, making shake before and after visual field, in preceding half period, the second motor 13 of driving is rotated forward, step number s, latter half
In period, driving the second motor 13 reversion, step number s, so that one group of cyclical action of composition, repeats above-mentioned movement
Realize the shake of visual field front and back.Jitter amplitude depends on the numerical value of s.
Second, shake visual field or so, in preceding half period, the push rod extension elongation of driving M1, M4 are x, M3, M2's
Extension elongation is y；In second half of the cycle, the push rod extension elongation of driving M1, M4 are y, and the extension elongation of M3, M2 are x；To
One group of cyclical action is formed, repeating above-mentioned movement can be realized visual field or so shake.Jitter amplitude is depending on x's and y
Difference.
Randomized jitter test:
In the step 1 of aforementioned preparation stage, remove the step of vertical plate 16 and pedestal 17 are fixed together, opens vibration
Vibration can be passed to clamping device by motor 21, vibrating motor 21, simultaneously because the active force of spring 29, clamping device can be generated
Random shake by a small margin, so that each frame image can all have small difference.
Claims (7)
1. a kind of camera test accessory, including supporting mechanism and clamping device, which is characterized in that the supporting mechanism includes
Pedestal (1) and the slide unit (4) being deployed in above pedestal (1) and support plate (6), pedestal (1) upper surface, which is recessed downwards, forms two
The first track (2) being parallel to each other is equipped with rack gear (3) between two the first tracks (2)；Slide unit (4) bottom is equipped with pulley pillar
(32), pulley pillar (32) bottom is equipped with pulley (34), and pulley (34) is placed in the first track (2)；Slide unit (4) bottom is also set
Have third motor (35), nested and rack gear (3) meshed gears (36) on the rotor of third motor (35)；It is set at the top of slide unit (4)
There are the no less than two groups slide bars (5) for running through support plate (6)；Slide unit (4) center of top is equipped with the stud for running through support plate (6)
(30), two nuts (31) are nested on stud (30) and are located at support plate (6) two sides up and down；Support plate (6) upper surface
Equipped with four portable stanchions (8), the portable stanchion (8) includes the first motor (801) for being fixed on support plate (6) upper surface,
Push rod (805) top of first motor (801) is equipped with first bearing (802), and first bearing (802) is connected by a hinge supporting plate
(7)；Second bearing (9) are equipped in the middle part of supporting plate (7), are slab construction at the top and bottom of the inner ring (902) of second bearing (9),
Bottom is fixed with the second runner (27), and supporting plate (7) lower surface edge forms shrinkage pool, is equipped with the second motor (13) in shrinkage pool, and second
It is fixed on the rotor of motor (13) the first runner (12), the first runner (12) and the second runner (27) are connected by transmission belt (14)
It connects；Formed at the top of second bearing (9) inner ring (902) four be in rectangular arranged the first fixation hole (11), be additionally provided with two it is clamped
Column (10)；Supporting plate (7) side is equipped with laser emitter, and light emission direction is parallel to the first track (2)；
The clamping device is fixed at the top of second bearing (9) inner ring (902)；Clamping device include pedestal (17), transverse slat (23),
Vertical plate (16)；Pedestal (17) upper surface is equipped with the second fixation hole (18), and side is equipped with the 4th fixation hole (25)；The vertical plate
(16) bottom sides form the 5th fixation hole (26) bottom surface and form strip-shaped hole, are equipped with spring (29) in strip-shaped hole, spring (29) one
End is fixed at the top of second bearing (9) inner ring (902), and the other end is fixed in the middle part of strip-shaped hole, and embedded post (10) is from spring (29)
In pass through；Vertical plate (16) side is equipped with vibrating motor (21)；Transverse slat (23) be installed in the middle part of two vertical plates (16) and with two vertical plates
(16) formed " H " type structure；Perforative strip-shaped hole is formed at vertical plate (16) top, and the first screw (19) runs through strip-shaped hole for top plate
(15) it is horizontally fixed between two vertical plates (16), recess is formed downwards in the middle part of transverse slat (23) upper surface and top plate (15) lower surface
Second track (24), side form the third fixation hole (20) of perforation to the second track (24), and third screw (28) runs through third
Fixation hole (20)；Four the second screws (22) sequentially pass through the 4th fixation hole (25) and the 5th fixation hole (26) for vertical plate respectively
(16) it is fastenedly connected with pedestal (17), the second screw of four additional (22) sequentially passes through the second fixation hole (18) and first respectively and consolidates
Determine hole (11) to be fastenedly connected pedestal (17) and inner ring (902).
2. a kind of camera test accessory as described in claim 1, which is characterized in that slide bar (5) bottom end is fixed on
On slide unit (4), slide bar (5) is flexibly connected with support plate (6), and junction coats lubricating oil.
3. a kind of camera test accessory as described in claim 1, which is characterized in that the hinge includes and first bearing
(802) connected connector (803) and it is installed on the fixing seat (804) of supporting plate (7) bottom.
4. a kind of camera test accessory as described in claim 1, which is characterized in that first fixation hole (11), the
Two fixation holes (18), the 4th fixation hole (25), the 5th fixation hole (26) are internal diameter and the identical internal thread hole of screw pitch.
5. a kind of camera test accessory as described in claim 1, which is characterized in that first screw (19) and third
Screw (28) one end is respectively formed the knob for facilitating hand adjustment, and third screw (28) other end is equipped with rubber sheet gasket.
6. a kind of camera test accessory as described in claim 1, which is characterized in that further include for driving in this equipment
The control system of first motor (801), the second motor (13), third motor (35), vibrating motor (21).
7. a kind of camera test accessory as described in claim 1, which is characterized in that be equipped with and use above the pulley (34)
In the pulley limit plate (33) that anti-limited slip wheel (34) falls off from track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710838471.3A CN107420710B (en) | 2017-09-18 | 2017-09-18 | A kind of camera test accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710838471.3A CN107420710B (en) | 2017-09-18 | 2017-09-18 | A kind of camera test accessory |
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| Publication Number | Publication Date |
|---|---|
| CN107420710A CN107420710A (en) | 2017-12-01 |
| CN107420710B true CN107420710B (en) | 2019-05-03 |
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|---|---|---|---|
| CN201710838471.3A Active CN107420710B (en) | 2017-09-18 | 2017-09-18 | A kind of camera test accessory |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108675043B (en) * | 2018-04-27 | 2019-11-12 | 安徽电缆股份有限公司 | A kind of high reliability thread guide devices |
| CN108953939B (en) * | 2018-08-17 | 2022-08-26 | 中国电子科技集团公司第三十八研究所 | Multi-camera supporting sliding platform for DIC measurement |
| CN109015756B (en) * | 2018-08-27 | 2019-06-04 | 东北大学 | A kind of series connection mechanical arm repetitive positioning accuracy reliability test and method |
| CN111853438A (en) * | 2020-07-08 | 2020-10-30 | 上海逊达建筑设计工程有限公司 | Positioning instrument for mounting electromechanical equipment |
| CN113489969A (en) * | 2021-06-30 | 2021-10-08 | 青岛维感科技有限公司 | Test method and device of TOF camera, control equipment and test equipment |
| CN113670563B (en) * | 2021-10-21 | 2022-02-22 | 中国空气动力研究与发展中心低速空气动力研究所 | Four-degree-of-freedom movement measurement device, control system and method for PIV system |
| CN116222521B (en) * | 2023-01-01 | 2023-09-26 | 山东佰通建设工程有限公司 | Measuring device for natural resource planning and design |
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