CN211425868U - Spraying characteristic detection device and detection system - Google Patents
Spraying characteristic detection device and detection system Download PDFInfo
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- CN211425868U CN211425868U CN202020390372.0U CN202020390372U CN211425868U CN 211425868 U CN211425868 U CN 211425868U CN 202020390372 U CN202020390372 U CN 202020390372U CN 211425868 U CN211425868 U CN 211425868U
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Abstract
The utility model discloses a spraying characteristic detection device and detecting system, light source adopt two structure light laser instrument as the camera light source, and two laser instrument light sources and nozzle are fixed on same axle, and two laser instruments send lamellar structure light, and during the spraying was cut into simultaneously to two lamellar structure light, all contained the spraying in the lamellar laser within range, at the vertical direction of lamellar laser instrument, placed the industry camera, industry camera lens adds the filter, for example: the structured light adopts 632nm wavelength red light structured light as a visual light source, a 600-900nm band-pass filter is required to be added in front of the lens, only the wavelength near the red light enters the lens, and other wavelengths are filtered. The overall profile of the spray is generated and the spray cone angle, penetration distance and spray area of the nozzle can be measured experimentally simultaneously.
Description
Technical Field
The utility model belongs to spraying characteristic measurement field especially relates to detection device and detecting system of engine fuel nozzle spraying characteristic.
Background
In the performance test of the engine fuel nozzle, the spray cone angle of the nozzle is mainly measured, and the penetration distance and the spray area of the nozzle are also measured. At present, in a vision measurement backlight illumination vision system for a spray cone angle, one end of spray is subjected to back lighting, a camera is placed at the other end of the spray, and the image is subjected to calculation and analysis by collecting images, so that the spray characteristic parameters of a nozzle are relatively single, and the included angle of the spray is mainly obtained.
The positions of a camera and a light source in the existing scheme are mostly fixed, when the nozzle is passively lifted or rotated, the spraying characteristic parameters of the nozzle are likely to change, and the camera and the light source cannot truly reflect the real performance of the fuel nozzle. Part of the improvement is that a camera and a light source are added to provide observation at two or more angles, so that the cost is increased, as the spraying area changes, if the spraying area becomes larger, a backlight with larger area is needed, the area of the backlight which is universal in the market is not large, and the test cost is also greatly increased when the area of the backlight which is universal in the market is not large.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists above, the utility model provides a spraying characteristic detection device adopts the real-time measurement method of vision, and the light source adopts two structure light laser instrument as the camera light source, and two laser instrument light sources and nozzle are fixed on same axle, and two laser instruments send lamellar structure light, and during the two lamellar structure light cut into the spraying simultaneously, all contained the spraying in the lamellar laser scope, at the vertical direction of lamellar laser instrument, placed industry camera, industry camera lens add the filter, for example: the structured light adopts 632nm wavelength red light structured light as a visual light source, a 600-900nm band-pass filter is required to be added in front of the lens, only the wavelength near the red light enters the lens, and other wavelengths are filtered. The overall profile of the spray is generated and the spray cone angle, penetration distance and spray area (cone angle, penetration distance, area) of the nozzle can be measured experimentally simultaneously.
The utility model provides a following technical scheme:
a spray characteristic detection device comprising: the laser device comprises two laser light sources 1, a nozzle 2, a shaft 3 and an industrial camera 4, wherein the two laser light sources 1 and the nozzle 2 are fixed on the shaft 3, the two laser light sources 1 are respectively arranged on two sides of the nozzle 2, the two laser light sources 1 are used for respectively emitting mutually overlapped or parallel sheet-shaped structured light, the two sheet-shaped structured light is simultaneously cut into the spray generated by the nozzle 2, the spray is completely contained in the range of the sheet-shaped structured light, and the industrial camera 4 is arranged in the plane vertical direction of the sheet-shaped structured light.
The sheet-shaped structured light adopts red light structured light with the wavelength of 632nm as a visual light source.
The lens of the industrial camera 4 is provided with a filter.
The band-pass range of the optical filter is 600-900 nm.
Additionally, the utility model discloses still relate to a spraying characteristic detecting system, including above spraying characteristic detection device, still include image acquisition analytical equipment for gather spraying characteristic detection device's image data, and carry out computational analysis to this image data, obtain nozzle 2's spraying characteristic parameter.
The spray characteristic parameters include the spray cone angle, and/or the penetration distance, and/or the spray area of the nozzle 2.
The utility model discloses owing to adopted above-mentioned technique, make it compare specific positive beneficial effect with prior art and be:
1. two sheet structured light lasers are used as vision measuring light sources, can cover the change of the spray cone angle within the range of 0-180 degrees, and do not need to replace the light source of a vision system compared with the prior art.
2. The parameters of penetration distance and spray area can be measured simultaneously in addition to the spray cone angle.
3. Simple structure and low cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a front view of the structure of the present invention.
In the figure: 1-two laser light sources, 2-nozzle, 3-axis, 4-industrial camera.
Detailed Description
For the purpose of clearly explaining the technical features of the present invention, the present invention will be explained in detail by the following embodiments with reference to the attached drawings, and those skilled in the art can easily understand other advantages and effects of the present invention from the disclosure of the present specification. The following examples are for illustration only.
As shown in fig. 1 and 2, the utility model provides a spray characteristic detection device, including: the laser device comprises two laser light sources 1, a nozzle 2, a shaft 3 and an industrial camera 4, wherein the two laser light sources 1 and the nozzle 2 are fixed on the shaft 3, the two laser light sources 1 are respectively arranged on two sides of the nozzle 2, the two laser light sources 1 are used for respectively emitting mutually overlapped or parallel sheet-shaped structured light, the two sheet-shaped structured light is simultaneously cut into the spray generated by the nozzle 2, the spray is completely contained in the range of the sheet-shaped structured light, and the industrial camera 4 is arranged in the plane vertical direction of the sheet-shaped structured light.
The sheet-shaped structured light adopts red light structured light with the wavelength of 632nm as a visual light source.
The lens of the industrial camera 4 is provided with a filter.
The band-pass range of the optical filter is 600-900 nm.
The utility model discloses still relate to a spraying characteristic detecting system, more than including spraying characteristic detection device, still include image acquisition analytical equipment for gather spraying characteristic detection device's image data, and carry out computational analysis to this image data, obtain the spraying characteristic parameter of nozzle 2.
The spray characteristic parameters include the spray cone angle, and/or the penetration distance, and/or the spray area of the nozzle 2.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A spray characteristic detection device, comprising: the laser device comprises two laser light sources (1), a nozzle (2), a shaft (3) and an industrial camera (4), wherein the two laser light sources (1) and the nozzle (2) are fixed on the shaft (3), the two laser light sources (1) are respectively arranged on two sides of the nozzle (2), the two laser light sources (1) are used for respectively emitting mutually overlapped or parallel sheet-shaped structured light, the two sheet-shaped structured light is simultaneously cut into the spray generated by the nozzle (2), the spray is completely contained in the range of the sheet-shaped structured light, and the industrial camera (4) is arranged in the plane vertical direction of the sheet-shaped structured light.
2. The spray characteristic detection device according to claim 1, characterized in that: the sheet-shaped structured light adopts red light structured light with the wavelength of 632nm as a visual light source.
3. The spray characteristic detection device according to claim 2, characterized in that: the lens of the industrial camera (4) is provided with an optical filter.
4. The spray characteristic detection device according to claim 3, characterized in that: the band-pass range of the optical filter is 600-900 nm.
5. A spray characteristic detection system, characterized by: the device comprises the spray characteristic detection device as claimed in any one of claims 1 to 4, and further comprises an image acquisition and analysis device for acquiring image data of the spray characteristic detection device and performing calculation and analysis on the image data to obtain the spray characteristic parameters of the nozzle (2).
6. The spray characteristic detection system of claim 5, wherein: the spray characteristic parameters comprise the spray cone angle, and/or the penetration distance, and/or the spray area of the nozzle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020390372.0U CN211425868U (en) | 2020-03-25 | 2020-03-25 | Spraying characteristic detection device and detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020390372.0U CN211425868U (en) | 2020-03-25 | 2020-03-25 | Spraying characteristic detection device and detection system |
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| CN211425868U true CN211425868U (en) | 2020-09-04 |
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| CN202020390372.0U Active CN211425868U (en) | 2020-03-25 | 2020-03-25 | Spraying characteristic detection device and detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115790456A (en) * | 2023-02-08 | 2023-03-14 | 中国空气动力研究与发展中心低速空气动力研究所 | Device and method for measuring atomization cone angle of icing cloud and mist simulation nozzle |
-
2020
- 2020-03-25 CN CN202020390372.0U patent/CN211425868U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115790456A (en) * | 2023-02-08 | 2023-03-14 | 中国空气动力研究与发展中心低速空气动力研究所 | Device and method for measuring atomization cone angle of icing cloud and mist simulation nozzle |
| CN115790456B (en) * | 2023-02-08 | 2023-04-18 | 中国空气动力研究与发展中心低速空气动力研究所 | Device and method for measuring atomization cone angle of icing cloud and mist simulation nozzle |
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