CN2816815Y - Combined stereoscopic adopter - Google Patents
Combined stereoscopic adopter Download PDFInfo
- Publication number
- CN2816815Y CN2816815Y CN 200520103493 CN200520103493U CN2816815Y CN 2816815 Y CN2816815 Y CN 2816815Y CN 200520103493 CN200520103493 CN 200520103493 CN 200520103493 U CN200520103493 U CN 200520103493U CN 2816815 Y CN2816815 Y CN 2816815Y
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- lens
- ccd array
- camera
- body frame
- stereoscopic
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Abstract
The utility model relates to a combined stereoscopic adapter which comprises a bottom plate, a lens holder, a first precision rotary table, a CCD array machine body frame, a telescopic cavity and a precision translation table, wherein the lens holder is fixedly arranged on an upper panel of the bottom plate for fixing a lens of a camera; the first precision rotary table can be rotatablely arranged at the bottom of the bottom plate for adjusting angle between a lens plane and an object plane; the CCD array machine body frame is arranged on one side of the lens holder for fixing an array chip machine body of a digital camera; the telescopic cavity is arranged between the lens holder and the CCD array machine body frame for regulating an adjustable and movable dark room between the lens and the CCD array machine body frame; the precision translation table can be rotatablely arranged at the bottom of the CCD array machine body frame for regulating slippage displacement between the lens and the CCD array machine body. With the advantages of simple structure and easy use, the utility model refits an ordinary camera or a CCD array camera into a camera which can be used in a stereoscopic measurement, and a clear image in one same viewing zone is obtained in a particle image velocity-measuring system by a left and a right cameras so as to obtain accurate experimental data.
Description
Technical field
The utility model relates to a kind of stereoscopic adapter, and refer in particular to a kind of translation/angle and move the stereoscopic adapter of combined type, be a kind of significant components that is used for digital stereoscopic particle image velocity-measuring system, belong to a kind of in the particle image velocity-measuring system.
Background technology
Along with development of science and technology, the improvement day by day of camera technique, most camera is not only the needs that satisfy people's daily life, but is applied to widely among all trades and professions such as industry, scientific research, measurement.For example: in existing digital stereoscopic particle image velocimetry system, just need be used for stereoscopic high-precision camera, but, the quality of camera is good again, if can not well regulate, use, can not be used for stereoscopic observation, can not get accurate experimental data too, so how developing a stereoscopic pinpoint accuracy, use, the camera adapter easy to adjust of being applicable to becomes those skilled in the art's major subjects.
At present, people are when use is adapted as stereoscopic camera and adjusts, normally the hand by human body carries out moving of all around, so just can not judge the displacement that camera moves horizontally towards a direction accurately, and the mobile angle of camera rotation, make to adjust to be difficult for reaching requirement, so this brings some inconvenience for people's experiment, measurement.
Inventor of the present utility model develops the stereoscopic adapter that a energy translation/angle is moved finally through long-term experiment.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of simple in structure, use, stereoscopic adapter easy to adjust.
For achieving the above object, the technical solution adopted in the utility model is as follows:
The stereoscopic adapter of a kind of combined type, this stereoscopic adapter comprises:
One base plate 3 is used to support each photographic equipment of the portion of being placed on it;
One is fixedly installed on the lens bracket 1 of base plate 3 top panels, is used for fixing the camera lens of camera;
The one rotatable first accurate universal stage 4 that is arranged on base plate 3 bottoms is used to regulate the angle between lens plane and the object plane;
One is arranged on the ccd array body frame 5 of lens bracket 1 one sides, is used for fixing digital camera array chip body;
One is arranged on the telescopic cavity 2 between lens bracket 1 and the ccd array body frame 5, is used to regulate the adjustable mobile darkroom between camera lens and the ccd array body;
The one rotatable accurate translation stage 6 that is arranged on ccd array body frame 5 bottoms is used to regulate the alternate displacement between camera lens and the ccd array body.
Further, at the bottom of this precision translation stage 6, the rotatable second accurate universal stage 7 that is provided for regulating angle between lens plane and the digit chip array plane.
This first accurate universal stage 4 is driven by micrometer, and minimum scale is 0.01mm, and resolution is 0.002mm, and coarse adjustment range is 360 °, and the fine setting scope is ± 10 °, and least count is 2 '.
This second accurate universal stage 7 is driven by micrometer, and minimum scale is 0.01mm, and resolution is 0.002mm, and coarse adjustment range is 360 °, and the fine setting scope is ± 10 °, and least count is 2 '.
This precision translation stage 6 is driven by micrometer, and minimum scale is 0.01mm, and resolution is 0.002mm, and stroke 25mm, guide rail are linear ball.
The use the beneficial effects of the utility model are: the utility model is simple in structure, easy to use, help obtains the picture rich in detail of same observation area (with two cameras) at camera or ccd array body in the particle image velocity-measuring system, obtain accurate experimental data.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is user mode figure of the present utility model;
Fig. 3 a is the translation schematic layout pattern of the stereoscopic adapter of the utility model;
Fig. 3 b is that schematic layout pattern is moved at the angle of the stereoscopic adapter of the utility model;
Fig. 4 a is the stereoscopic adapter of the utility model synoptic diagram when measuring the flow field in the TA-DSPIV system in the DSPIV mode of translation layout;
Synoptic diagram when Fig. 4 b DSPIV mode that to be the stereoscopic adapter of the utility model move layout at the Yi Jiao of TA-DSPIV system is measured the flow field;
Fig. 5 is for satisfying the synoptic diagram of Si Gemufu glug (Scheimphflug) condition.
Embodiment
Below by embodiment, accompanying drawing describes the present invention in addition.
Translation/angle moves-and digital stereoscopic particle image velocity-measuring system (TA-DSPIV system) both can be as the DSPIV of translation layout, also can move the main cause that the DSPIV of layout measures as the angle is to have adopted combined type stereoscopic (imaging) adapter (being called for short stereoscopic adapter) of design voluntarily, this equipment can be regulated relative position and the angle between CCD camera lens and ccd array body neatly, when stereoscopic adapter makes when between camera lens and ccd array body the relative changing of the relative positions taking place, the flow field just can be measured according to translation DSPIV mode by the TA-DSPIV system; Stereoscopic adapter makes when relatively rotating between camera lens and ccd array body, and the TA-DSPIV system just becomes the angle and moves the DSPIV system.Thereby this stereoscopic adapter is the key equipment in the stereoscopic particle image velocity-measuring system (SPIV).
As shown in Figure 1, the stereoscopic adapter of combined type is moved at a kind of translation/angle, and this stereoscopic adapter comprises: a base plate 3 is used to support each photographic equipment of the portion of being placed on it; One is fixedly installed on the lens bracket 1 of base plate 3 top panels, is used for fixing the camera lens of camera; The one rotatable first accurate universal stage 4 that is arranged on base plate 3 bottoms is used to regulate the angle between lens plane and the object plane; One is arranged on the ccd array body frame 5 of lens bracket 1 one sides, is used for fixing digital camera array chip body; One is arranged on the telescopic cavity 2 between lens bracket 1 and the ccd array body frame 5, is used to regulate the adjustable mobile darkroom between camera lens and the ccd array body; The one rotatable accurate translation stage 6 that is arranged on ccd array body frame 5 bottoms is used to regulate the alternate displacement between camera lens and the ccd array body.In order better to measure, further at the bottom of this precision translation stage 6, the rotatable second accurate universal stage 7 that is provided for regulating angle between lens plane and the digit chip array plane.
Wherein, above-mentioned being provided with can be adopted welding, is spirally connected, bolt is fixing etc., and lens bracket 1 can be welded on the panel of base plate 3; The first accurate universal stage 4 can be screwed onto the bottom of base plate 3; Ccd array body frame 5 can bolt in a side of lens bracket 1; Telescopic cavity 2 can be welded between lens bracket 1 and the ccd array body frame 5; Accurate translation stage 6 can be screwed onto the bottom of ccd array body frame 5; The second accurate universal stage 7 can be screwed onto the bottom of accurate translation stage 6.
Wherein, this first accurate universal stage 4 is driven by micrometer, and minimum scale is 0.01mm, and resolution is 0.002mm, and coarse adjustment range is 360 °, and the fine setting scope is ± 10 °, and least count is 2 '.
This second accurate universal stage 7 is driven by micrometer, and minimum scale is 0.01mm, and resolution is 0.002mm, and coarse adjustment range is 360 °, and the fine setting scope is ± 10 °, and least count is 2 '.
This precision translation stage 6 is driven by micrometer, and minimum scale is 0.01mm, and resolution is 0.002mm, and stroke 25mm, guide rail are linear ball.
The user mode figure of the stereoscopic adapter of combined type in the particle velocity-measuring system moved at translation/angle of the present utility model, as shown in Figure 2.It is a kind of significant components that is used for digital stereoscopic particle image velocity-measuring system (DSPIV sees Fig. 2 synoptic diagram) that the stereoscopic adapter of combined type is moved at translation/angle.It becomes a pair of adaptive dedicated digital cameras that can be used for stereoscopic measurement (promptly the 3D velocity field of a tangent plane (u, v, w) is measured) according to stereoscopic image-forming principle with original digital camera repacking, and in Fig. 2, bundling device is designated as SSP; First laser instrument is designated as Laser I, second laser instrument is designated as Laser II; The first cooling power supply is designated as PCU I, the second cooling power supply is designated as PCU II; Chronotron is designated as DG535; The first stereoscopic adapter is designated as Adapter I, the second stereoscopic adapter is designated as Adapter II; First image acquisition board is designated as 20; Second image acquisition board is designated as 21, and laser sheet optical is 22, and sheet light light path is 23, and the illumination particle is that 24, the first AD conversion unit are that 25, the second AD conversion unit are 26.The two bundle laser pulses that sent by the first laser instrument Laser I and the second laser instrument Laser II (the auxiliary device first cooling power supply PCU I and the second cooling power supply PCU II) make it overlapping fully by laser bundling device SSP, form laser pulse sheet light 22 through sheet light light path 23 again, illumination particle flow field 24.The first stereoscopic adapter Adapter I and the second stereoscopic adapter Adapter II are used for regulating first respectively and stride the imaging that frame of digital image chip CC I and second strides frame of digital image chip CC II, stride the frame of digital image chip and be used for absorbing particle picture, these images are stored in the computing machine via first AD conversion unit 25, second AD conversion unit 26 and first image acquisition board 20, second image acquisition board 21.Chronotron DG535 is used for controlling the time-delay of two laser pulses that two laser instruments send respectively and picked-up time-delay that two are striden the frame of digital image chip and synchronously.
Move the stereoscopic adapter of combined type for translation/angle, wherein Fig. 3 a is the translation layout, with two first striding frame of digital image chip CC I and second and stride frame of digital image chip CC II and observe of be arrangeding in parallel, wherein, object plane (laser sheet optical) for inspection surface III, camera lens face IV and image surface be record face V not on same axis, but three faces are parallel.Wherein Fig. 3 b is that layout is moved at the angle, and inspection surface III, lens face IV and record face V and have angle not only not on same axis between the three.It is clear to guarantee at record face focal imaging according to image, must satisfy so-called Si Gemufu glug (Scheimphflug) condition, and promptly three need intersect at a line.
In use, shown in Fig. 4 a, when measuring the flow field in the TA-DSPIV system in the DSPIV mode of translation layout, stereoscopic adapter (sees Fig. 3 a), wherein, lens face IV is parallel with image surface V, stereoscopic adapter guarantees that by regulating the relative position (Δ D) of accurate translation stage 6 translation camera lens axis and ccd array body axis the coverage (observation area) of two cameras is identical.
Shown in Fig. 4 b, when the DSPIV mode that stereoscopic adapter moves layout at the Yi Jiao of TA-DSPIV system is measured the flow field (seeing Fig. 3 b), at first regulating the first accurate universal stage 4 makes between lens plane IV and object plane (plane of vision) III and becomes angle theta (generally to adopt 5 °-45 °, see Table 1, table 2), regulating the second accurate universal stage 7 then makes and becomes angle α (generally adopt 5 °-45 °, see Table 1, table 2) between ccd array plane V and lens plane IV.
For the entire image that guarantees record can both focus on the array record chip plane, promptly adjust via the convenient of stereoscopic adapter, reach object plane (plane of vision), lens plane and chip array Plane intersects in straight line, satisfy Si Gemufu glug (Scheimphflug) condition.
As shown in Figure 5, for satisfying Si Gemufu glug (Scheimphflug) condition, straight line AB and A ' B ' (comprising the CD line) must meet at 1 O.Regulate accurate translation stage 6 at last and make array chip V changing of the relative positions Δ D take place, guarantee that optical center line OL1OL2 and array chip center line OC1OC2 intersect, two observation area coincidences that camera is taken about assurance with respect to lens plane IV.It should be noted that Si Gemufu glug (Scheimpflug) condition only guarantees that image focusing is clear, but do not guarantee that each regional magnification of entire image is uniform.
Attached: as to calculate scope and the relation of its θ angle (lens position angle), α (the adaptive angle of lens and chip) and translational displacement amount Δ D according to Gauss formula and Si Gemufu glug (Scheimphflug) condition.Can see Table (1) and table (2).M=tg α/tg θ is an adjustable parameter in the table.
Table (1) M, θ and α (°) table of comparisons
Table(1)?Table?of?M?and?θ?correspondingα(°)
Table (2) M, the θ and Δ D (mm) table of comparisons
Table(2)Table?of?M?and?θ?corresponding?ΔD(mm)
Claims (5)
1. the stereoscopic adapter of combined type is characterized in that, this stereoscopic adapter comprises:
One base plate (3) is used to support each photographic equipment of the portion of being placed on it;
One is fixedly installed on the lens bracket (1) of base plate (3) top panel, is used for fixing the camera lens of camera;
The one rotatable first accurate universal stage (4) that is arranged on base plate (3) bottom is used to regulate the angle between lens plane and the object plane;
One is arranged on the ccd array body frame (5) of lens bracket (1) one side, is used for fixing digital camera array chip body;
One is arranged on the telescopic cavity (2) between lens bracket (1) and the ccd array body frame (5), is used to regulate the adjustable mobile darkroom between camera lens and the ccd array body;
The one rotatable accurate translation stage (6) that is arranged on ccd array body frame (5) bottom is used to regulate the alternate displacement between camera lens and the ccd array body.
2. the stereoscopic adapter of combined type according to claim 1 is characterized in that, at the bottom of this precision translation stage (6), the rotatable second accurate universal stage (7) that is provided for regulating angle between lens plane and the digit chip array plane.
3. the stereoscopic adapter of combined type according to claim 1 is characterized in that, this first accurate universal stage (4) is driven by micrometer, minimum scale is 0.01mm, and resolution is 0.002mm, and coarse adjustment range is 360 °, the fine setting scope is ± 10 °, least count is 2 '.
4. the stereoscopic adapter of combined type according to claim 2 is characterized in that, this second accurate universal stage (7) is driven by micrometer, minimum scale is 0.01mm, and resolution is 0.002mm, and coarse adjustment range is 360 °, the fine setting scope is ± 10 °, least count is 2 '.
5. the stereoscopic adapter of combined type according to claim 1 is characterized in that, this precision translation stage (6) is driven by micrometer, and minimum scale is 0.01mm, and resolution is 0.002mm, and stroke 25mm, guide rail are linear ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103493 CN2816815Y (en) | 2005-08-11 | 2005-08-11 | Combined stereoscopic adopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103493 CN2816815Y (en) | 2005-08-11 | 2005-08-11 | Combined stereoscopic adopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816815Y true CN2816815Y (en) | 2006-09-13 |
Family
ID=36996625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520103493 Expired - Fee Related CN2816815Y (en) | 2005-08-11 | 2005-08-11 | Combined stereoscopic adopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816815Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792636A (en) * | 2013-12-27 | 2014-05-14 | 中国科学院西安光学精密机械研究所 | Optical lens self-aligning device |
| CN111122115A (en) * | 2020-01-08 | 2020-05-08 | 哈尔滨工程大学 | Multi-plane SPIV experimental device |
| WO2020260754A1 (en) | 2019-06-24 | 2020-12-30 | Oseir Oy | Method and apparatus for monitoring a flow field of a particle jet |
-
2005
- 2005-08-11 CN CN 200520103493 patent/CN2816815Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792636A (en) * | 2013-12-27 | 2014-05-14 | 中国科学院西安光学精密机械研究所 | Optical lens self-aligning device |
| CN103792636B (en) * | 2013-12-27 | 2016-08-17 | 中国科学院西安光学精密机械研究所 | A kind of optical lens aligning device |
| WO2020260754A1 (en) | 2019-06-24 | 2020-12-30 | Oseir Oy | Method and apparatus for monitoring a flow field of a particle jet |
| US11986844B2 (en) | 2019-06-24 | 2024-05-21 | Oseir Oy | Method and apparatus for monitoring a flow field of a particle jet |
| CN111122115A (en) * | 2020-01-08 | 2020-05-08 | 哈尔滨工程大学 | Multi-plane SPIV experimental device |
| CN111122115B (en) * | 2020-01-08 | 2022-06-17 | 哈尔滨工程大学 | Multi-plane SPIV experimental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060913 Termination date: 20110811 |