CN208012834U - A kind of underwater in-situ laser particle imaging device - Google Patents
A kind of underwater in-situ laser particle imaging device Download PDFInfo
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- CN208012834U CN208012834U CN201820421216.9U CN201820421216U CN208012834U CN 208012834 U CN208012834 U CN 208012834U CN 201820421216 U CN201820421216 U CN 201820421216U CN 208012834 U CN208012834 U CN 208012834U
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- 239000002245 particle Substances 0.000 title claims abstract description 38
- 238000003384 imaging method Methods 0.000 title claims abstract description 21
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model discloses a kind of underwater in-situ laser particle imaging device, which is positioned in target water after waterproof sealing, for providing incident light source for target water；Image collecting device is positioned in target water after waterproof sealing, for obtaining target water image, and will obtain in image storage to memory or be transferred directly to computer；Computer reads the image in memory or is directly connected with image collecting device.The utility model has underwater the advantages of closely obtaining flow field situation, realizing in-situ observation, and can increase observation angle after increasing holder.
Description
Technical field
The utility model is related to a kind of imaging device, especially a kind of underwater in-situ laser particle imaging device.
Background technology
The case where laser particle imaging technique can observe flow field by Particles Moving can instantaneously obtain a large amount of skies
Between velocity profile information on point, while there is higher measurement accuracy, be the heat subject of current fluid mechanical meaurement research,
Therefore being improved promotion to this technology is highly desirable.
Existing laser particle imaging device mainly has with vehicle movement and fixed two types, the former is at application environment
Towing basin is divided to two kinds of vehicle mounted type and bank formula, the latter mainly to be applied in circulating water chennel and other minienvironments.Towing basin
It is the experiment pond for understanding the properties of ships with Ship model test method, ship direction is served primarily in, for it
For the hydrodynamic force research in his direction, or based on small-sized sink, it is applied to the laser particle imaging technique of such environment simultaneously
The device of flow field situation can not be closely observed under water, it is quite inconvenient in actual use, therefore a kind of underwater in-situ
Laser particle imaging device is very significant.
Utility model content
Against the above deficiency, the utility model provides a kind of underwater in-situ laser particle imaging device, by sending out laser
Raw device and image collecting device into the water, under water shooting at close range trace particle moving image, accomplish the water of in-situ observation
Lower local laser particle, to realize the in-situ monitoring to submerged flow field.
To solve the above problems, the utility model uses following technical scheme：A kind of underwater in-situ laser particle imaging dress
It sets, including：Laser generator, image collecting device, memory and computer,
It is positioned in target water after the laser generator waterproof sealing, for providing incident light source for target water；
It is positioned in target water after described image harvester waterproof sealing, for obtaining target water image, and will
Obtain in image storage to memory or be transferred directly to computer；
The computer reads the image in memory or is directly connected with image collecting device.
Further, described image harvester includes at the optical lens, ccd image sensor, video being sequentially connected
Reason system, optical lens receive image and pass to ccd image sensor, and ccd image sensor converts optical signals into telecommunications
Number, it is further amplified via processing system for video, is stored into memory or is transferred directly to computer.
Further, the memory is SD card.
Further, the laser generator and image collecting device are sealed in transparent box.
Further, there is trace particle in the target water.
Compared with the existing technology, the beneficial effects of the utility model：The utility model is to laser generator and Image Acquisition
Device takes closed measure.The utility model can accomplish under water, especially in the common small sized environment such as sink closely
Trace particle moving image is shot, in-situ observation is realized, compensates for existing laser particle imaging device nothing in such environment
The blank that method is directly observed under water.The utility model have it is easy to use, compare existing fixed particle imaging device, observe
The characteristics of angle increases.
Description of the drawings
Fig. 1 is the model schematic diagram of underwater in-situ laser particle imaging system；
Fig. 2 is the detailed structure view of this underwater in-situ laser particle imaging system；
In figure, laser emitter 1, image collecting device 2, computer 3, trace particle 4, box 5.
Specific implementation mode
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figs. 1-2, the utility model provides a kind of underwater in-situ laser particle imaging device, including：
Laser generator 1 is positioned in target water after waterproof sealing, for providing incident light source for target water；
Image collecting device 2 is positioned in target water after waterproof sealing, for obtaining target water image, and will obtain
Obtain in image storage to memory or be transferred directly to computer 3；The memory is SD card.
Computer 3 reads the image in memory or is directly connected with image collecting device 2.
Described image harvester 2 includes optical lens, ccd image sensor, the processing system for video being sequentially connected, light
Lens are learned to receive image and pass to ccd image sensor, ccd image sensor converts optical signals into electric signal, via regarding
Frequency processing system is further amplified, and is stored into memory or is transferred directly to computer 3.
The laser generator 1 and image collecting device 2 are sealed in transparent box 5, for protecting laser
Device 1 and image collecting device 2 ensure laser generator 1 and image collecting device 2 and water isolation, normal work；And with removable
Holder is filled, can accomplish shooting at close range trace particle moving image under water, realizes underwater in-situ observation.
There is trace particle 4, trace particle 4 is for reflecting flow field change in the target water.
The course of work of the utility model is as follows：
Step (1), first, system boot open laser generator 1, image collecting device 2 and computer 3, laser are sent out
Raw device 1 and image collecting device 2 are thrown to specified waters, trace particle 4 are spilt into target water, laser generator 1 is to mesh
Mark waters is illuminated, and trace particle 4 follows fluid motion, and reflects the light of incident light source；
Step (2) opens image collecting device 2, and image collecting device 2 receives the light of trace particle reflection, obtains mesh
The image in waters is marked, and image is transferred directly to computer 3；
After step (3), computer 3 receives image, image is handled, enhancing processing is carried out to image first,
To distinguish particle and background, and identification and positioning are implemented to particle；Secondly, to the particle that recognizes in different time points in position
It sets and is compared, obtain the mean speed vector of each particle in the time interval；The velocity vector of different particles constitutes target stream
Velocity profile information in the spatial point of field, to calculate corresponding flow field space structure and flow behavior.Above-mentioned processing is this
The conventional treatment mode in field is not that the utility model is claimed.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these should also be considered as
The scope of protection of the utility model.
Claims (5)
1. a kind of underwater in-situ laser particle imaging device, which is characterized in that including：Laser generator, is deposited image collecting device
Reservoir and computer,
It is positioned in target water after the laser generator waterproof sealing；
It is positioned in target water after described image harvester waterproof sealing, for obtaining target water image, and will obtain
Image stores into memory or is transferred directly to computer；
The computer reads the image in memory or is directly connected with image collecting device.
2. a kind of underwater in-situ laser particle imaging device according to claim 1, it is characterised in that：Described image acquisition dress
Set optical lens, ccd image sensor, processing system for video including being sequentially connected.
3. a kind of underwater in-situ laser particle imaging device according to claim 1 or claim 2, it is characterised in that：The memory
For SD card.
4. a kind of underwater in-situ laser particle imaging device according to claim 1 or claim 2, it is characterised in that：The laser hair
Raw device and image collecting device are sealed in transparent box.
5. a kind of underwater in-situ laser particle imaging device according to claim 1 or claim 2, it is characterised in that：The target water
There is trace particle in domain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820421216.9U CN208012834U (en) | 2018-03-27 | 2018-03-27 | A kind of underwater in-situ laser particle imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820421216.9U CN208012834U (en) | 2018-03-27 | 2018-03-27 | A kind of underwater in-situ laser particle imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208012834U true CN208012834U (en) | 2018-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820421216.9U Active CN208012834U (en) | 2018-03-27 | 2018-03-27 | A kind of underwater in-situ laser particle imaging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318220A (en) * | 2018-03-27 | 2018-07-24 | 浙江大学 | A kind of underwater in-situ laser particle imaging device and imaging method |
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2018
- 2018-03-27 CN CN201820421216.9U patent/CN208012834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318220A (en) * | 2018-03-27 | 2018-07-24 | 浙江大学 | A kind of underwater in-situ laser particle imaging device and imaging method |
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