CN206095577U - Be used for rotating member life -span method PSP to measure data acquisition system - Google Patents
Be used for rotating member life -span method PSP to measure data acquisition system Download PDFInfo
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- CN206095577U CN206095577U CN201621161054.7U CN201621161054U CN206095577U CN 206095577 U CN206095577 U CN 206095577U CN 201621161054 U CN201621161054 U CN 201621161054U CN 206095577 U CN206095577 U CN 206095577U
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Abstract
The utility model provides a be used for rotating member life -span method PSP to measure data acquisition system, including two CCD cameras, the camera lens, spectroscope and synchronising controller, synchronising controller respectively with two mutually electromechanical signal connection of CCD, two CCD cameras are arranged perpendicularly, two CCD camera symmetry axis departments are arranged in to the spectroscope, guarantee that the spectroscope equals to two CCD arrays distance, the camera lens is adorned before the spectroscope, with a CCD camera axis coincidence, just to shooing the target, whole light paths behind the camera lens must airtight shading, a CCD camera sees through the spectroscope and directly takes the target object, another CCD camera passes through spectroscope reflection back, take the target object, two CCD camera exposure time slightly stagger, synchronising controller output triggering signal accomplishes the image acquisition of two CCD cameras, realize quick two frame exposure. The utility model discloses a continuous controllable two frames exposure of PSP life -span method realizes sequential accurate control.
Description
Technical field
The utility model is related to a kind of data collecting system for the measurement of revolving part Life method PSP.
Background technology
Pressure sensitive coating pressure measuring technology is a kind of tool non-contact optical manometric technique with broad prospects for development, and it has
There is stream field interference little, the features such as high spatial resolution, be widely used in abroad in the middle of various wind tunnel pressure measurings experiments.And its
The innate advantage of extra repacking need not be carried out to model so that it becomes in the revolving part experimental situation with compressor as representative
One of most potential manometric technique.
Service life method carries out PSP measurements to revolving part, although shortening the time for exposure, successfully inhibits motion blur to show
As, but for the experiment of high-speed compressor, motion blur phenomenon still brings greatly destruction to experimental data.Transport at this stage
On the one hand the reason for dynamic fuzzy problem cannot be captured thoroughly be camera, for existing CCD camera, is on the one hand extremely difficult to very
High frequency of exposure；On the other hand, even having double frame patterns (being common in PIV systems, it is allowed to the frame of rapid sequence exposure two)
Camera, can there is extremely serious motion blur and show in the second exposed frame usually uncontrollable (be up to several ms), i.e. the second frame
As.
Utility model content
To solve the problem, the utility model provides a kind of data collecting system for the measurement of revolving part Life method PSP,
To obtain clearly data.
The technology that the utility model is adopted is as follows：A kind of data collecting system for the measurement of revolving part Life method PSP,
Including two CCD cameras, camera lens, spectroscope and isochronous controllers, isochronous controller connects respectively with two CCD camera electric signals
Connect, two CCD cameras are arranged vertically, spectroscope is placed at two CCD camera symmetry axis, it is ensured that spectroscope to two ccd array away from
From equal, camera lens with a CCD camera axis loaded on before spectroscope, overlapping, just to photographic subjects, the whole light paths after camera lens
Necessary closed shading a, CCD camera passes through the direct photographic subjects object of spectroscope, and another CCD camera is anti-by spectroscope
After penetrating, photographic subjects object, two CCD camera time for exposure slightly stagger, and isochronous controller output trigger completes two
The IMAQ of CCD camera, realizes quick double exposed frames.
The utility model also has following technical characteristic：Described camera lens is optical lens.
The utility model has the advantage of：Continuous controllable double exposed frames of PSP Life methods are realized, the essence of sequential is realized
Quasi- control, after the second exposed frame is blocked, can significantly suppress motion blur phenomenon, it is adaptable to compressor experimental situation.
Description of the drawings
Fig. 1 is data collecting system layout drawing
Specific embodiment
The utility model is described further below according to Figure of description citing：
Embodiment 1
A kind of data collecting system for the measurement of revolving part Life method PSP, including two CCD cameras 1.2, camera lens 5, point
Light microscopic 4 and isochronous controller 3, isochronous controller 3 is connected respectively with two electric signals of CCD camera 1.2, and two CCD cameras 1.2 are hung down
Straight arrangement, spectroscope 4 is placed at two symmetry axis of CCD camera 1.2, it is ensured that the ccd array of spectroscope 4 to two is apart from equal, camera lens 5
Before loaded on spectroscope 4, overlap with an axis of CCD camera 1, just to photographic subjects 6,5 whole light paths must be close after camera lens
Shading is closed, a CCD camera 1 passes through the direct photographic subjects object of spectroscope 4, and another CCD camera 2 is reflected by spectroscope 4
Afterwards, photographic subjects object, two time for exposure of CCD camera 1.2 slightly stagger, and the output of isochronous controller 3 trigger completes two
The IMAQ of platform CCD camera 1.2, realizes quick double exposed frames.
Embodiment 2
Before test, PSP coating sprayings are carried out, subsequently fixedly mount this acquisition system.
Focus, it is ensured that two equal blur-free imagings of CCD camera 1.2, such as running into can not be while situation about being imaged, alignment one
Platform CCD camera, slight mobile second CCD camera before and after axis.As the adjustable range of camera lens 5 cannot be focused on, Ke Yiyong
Optical lens is expanding adjustable range.
CCD camera external trigger pattern used in gatherer process, isochronous controller output trigger completes collection.Two CCD
Camera output image is the AB frames in PSP Life methods, and follow-up data process work is identical with routine PSP systems.
The system realizes the controllable collection of quick and double exposed frames using two conventional CCD cameras, be mainly used in
Compressor is the PSP measurements on the revolving part of representative.
Claims (2)
1. a kind of data collecting system for the measurement of revolving part Life method PSP, including two CCD cameras, camera lens, spectroscope and
Isochronous controller, isochronous controller is connected respectively with two CCD camera electric signals, it is characterised in that：The vertical cloth of two CCD cameras
Put, spectroscope is placed at two CCD camera symmetry axis, it is ensured that apart from equal, camera lens is loaded on spectroscope to spectroscope to two ccd array
Before, overlap with a CCD camera axis, just to photographic subjects, the whole light paths after camera lens must closed shading, a CCD
Camera pass through the direct photographic subjects object of spectroscope, another CCD camera after dichroic mirror, photographic subjects object, two
The platform CCD camera time for exposure slightly staggers, and isochronous controller output trigger completes the IMAQ of two CCD cameras, real
Now quick double exposed frames.
2. a kind of data collecting system for the measurement of revolving part Life method PSP according to claim 1, its feature exists
In：Described camera lens is optical lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621161054.7U CN206095577U (en) | 2016-10-25 | 2016-10-25 | Be used for rotating member life -span method PSP to measure data acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621161054.7U CN206095577U (en) | 2016-10-25 | 2016-10-25 | Be used for rotating member life -span method PSP to measure data acquisition system |
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| Publication Number | Publication Date |
|---|---|
| CN206095577U true CN206095577U (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621161054.7U Active CN206095577U (en) | 2016-10-25 | 2016-10-25 | Be used for rotating member life -span method PSP to measure data acquisition system |
Country Status (1)
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| CN (1) | CN206095577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289713A (en) * | 2016-10-25 | 2017-01-04 | 中国航空工业集团公司沈阳空气动力研究所 | The data collecting system measured for revolving part Life method PSP |
-
2016
- 2016-10-25 CN CN201621161054.7U patent/CN206095577U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289713A (en) * | 2016-10-25 | 2017-01-04 | 中国航空工业集团公司沈阳空气动力研究所 | The data collecting system measured for revolving part Life method PSP |
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