CN208902145U - A kind of unmanned plane sprinkling downwash flow field measuring device based on PIV system - Google Patents
A kind of unmanned plane sprinkling downwash flow field measuring device based on PIV system Download PDFInfo
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- CN208902145U CN208902145U CN201821571604.1U CN201821571604U CN208902145U CN 208902145 U CN208902145 U CN 208902145U CN 201821571604 U CN201821571604 U CN 201821571604U CN 208902145 U CN208902145 U CN 208902145U
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Abstract
The utility model relates to a kind of, and the unmanned plane based on PIV system sprays downwash flow field measuring device, including support frame, two guide rails, two brackets, cylinder, spraying mechanism and PIV system, PIV system includes controller, CCD camera and laser generator, CCD camera and laser generator are slidably arranged on support frame, two guide rail horizontal Tile settings are on the support frame, two brackets are slidably disposed in respectively on two guide rails, spraying mechanism is disposed therein on a bracket, unmanned plane is located at the top of two support frames, and its two sides passes through connector respectively and connect with two brackets, cylinder is disposed therein one end of a guide rail, and its telescopic rod is fixedly connected with corresponding bracket, cylinder is electrically connected with the controller, the downwash flow field image of spraying mechanism sprinkling when CCD camera acquires unmanned plane movement.The utility model has the beneficial effects that simulation multi-angle unmanned plane sprinkling, realizes the evaluation to spray effect.
Description
Technical field
The utility model relates to agricultural plant protection air vehicle technique fields, and in particular to a kind of unmanned plane based on PIV system
Spray downwash flow field measuring device.
Background technique
Rotor wing unmanned aerial vehicle aviation plant protection has broad based growth application prospect in China, the crop field operation of rotor plant protection drone
It is typically characterised by the presence of rotor air-flow, rotor air-flow is substantially that body flight is restricted in the operating system of rotor wing unmanned aerial vehicle crop field
Parameter and the important job parameter for determining Ground Operation effect.Rotor shaft decides the aerodynamic characteristic of unmanned plane away from design, but
Downwash flow distribution is changed to influence pesticide supplying effect.
The Chinese patent that notification number is CN106428629A discloses test platform in a kind of plant protection drone spray booth, packet
It includes: pedestal, fixed bracket, the sliding rack with sliding groove, rangefinder, liquid level collection device and a kind of spray of plant protection drone
Indoor detection method is spilt, the position and azimuth information by stadia surveying plant protection drone are obtained by liquid level collection device
It obtains plant protection drone and sprays Pcnten-1 yne-4 data, calculate and correct the error of liquid level collection device introducing, and then obtain sprinkling mist
Drip distribution probability.This patent realizes the simulation sprayed to unmanned plane by simplest space structure, and provides detection method,
But the dimension of detection is single, and disturbs downwash flow field.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of, and the unmanned plane based on PIV system sprays downwash flow field
Measuring device, it is intended to solve above-mentioned technical problem.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
A kind of unmanned plane sprinkling downwash flow field measuring device based on PIV system, including support frame, two guide rails, two
Bracket, cylinder, spraying mechanism and PIV system, the PIV system include controller, CCD camera and laser generator, described
CCD camera and the laser generator are slidably arranged on support frame as described above, and solid by the first fixing piece and second respectively
Determine part to be fixed, the guide rail is horizontally disposed, and two guide rails are disposed side by side on support frame as described above, two brackets
It is slidably disposed on two guide rails respectively, the spraying mechanism is disposed therein on a bracket, unmanned seat in the plane
In the top of two brackets, and its two sides passes through connector respectively and connect with two brackets, and the cylinder setting exists
One end of one of them guide rail, and its telescopic rod is fixedly connected with the corresponding bracket, the cylinder and the control
Device electrical connection, the cylinder drives the bracket, the unmanned plane and the spraying mechanism to move along the guide rail, described
CCD camera acquires the downwash flow field image of spraying mechanism sprinkling when unmanned plane movement.
The beneficial effects of the utility model are: driving bracket and unmanned plane and spraying mechanism to move along guide rail by cylinder
It is dynamic, the state of unmanned plane during flying is simulated, while spraying mechanism sprays liquid；Laser generator generates laser, illuminates sprinkling droplet
The case where distribution, the downwash flow field image of spraying mechanism sprinkling when CCD camera acquires unmanned plane movement, so as to different flight items
The spray effect of unmanned plane under part is evaluated.
Based on the above technical solution, the utility model can also do following improvement.
Further, the bracket includes connecting rod and two support rods, the connecting rod be located at the top of the guide rail and
It is parallel to the guide rail setting, the support rod is vertically arranged, and the lower end of the upper end of the support rod and the connecting rod is solid
Fixed connection, and its lower end is slidably connected with the guide rail；The connector include support quarter butt, support stock, fixed plate and
Two bolts, unmanned plane are fixed in the fixed plate, and the upper end of the support quarter butt and one end of the fixed plate are hinged,
Lower end is fixedly connected with the connecting rod, is provided in the axial direction with multiple first positioning holes, the connecting rod on the support stock
On be provided in the axial direction with multiple first through hole, the middle part uniform intervals of the fixed plate offer multiple second through-holes, mobile institute
When stating support stock, two first positioning holes are movable to thereon leads to any first through hole and described second respectively
Hole connection, two bolts be inserted into respectively two first positioning holes and the first through hole communicated therewith respectively and
Second through-hole fixes the support stock with the fixed plate and the connecting rod respectively.
Beneficial effect using above-mentioned further scheme is by support stock first positioning hole and different first through hole
It is combined with the second through-hole, to adjust unmanned plane gradient, to simulate the sprinkling droplet point of the unmanned plane of different gradients
Cloth situation, it is easy to operate.
Further, the telescoping shoring column uses diamond shape variable support, stretches the diamond shape variable support and passes through fixation
Part is fixed, to adjust the wheelbase between two propellers.
Beneficial effect using above-mentioned further scheme is that structure is simple, easy to operate.
Further, the spraying mechanism includes the fluid reservoir being sequentially communicated by pipeline, water pump, flow control valve, pressure
Sensor, flow sensor and spray head, the fluid reservoir, the water pump, the flow control valve, the pressure sensor,
The flow sensor and the spray head are each attached to the downside of the connecting rod, and the spray head is vertically arranged and its spout court
Under, unmanned plane is equipped with air velocity transducer, the water pump, the flow control valve, the pressure sensor, the flow sensing
Device and the air velocity transducer are electrically connected with the controller respectively.
Beneficial effect using above-mentioned further scheme is wind speed when detecting unmanned plane during flying by air velocity transducer, and
Send corresponding wind velocity signal to controller；Water pump sprays out the liquid in fluid reservoir by spray head, is passed by flow
Flow on sensor real-time monitoring pipeline, and send corresponding flow signal to controller；Controller is according to air velocity transducer
The signal provided with flow sensor adjusts the flow of liquid to control flow control valve, to control the speed of unmanned plane sprinkling
Degree.
Further, support frame as described above includes two H-shaped framves being oppositely arranged, the H-shaped frame include two support columns and
Connecting column, the support column are vertically arranged, and the upper end is fixedly connected with the lower end of the corresponding guide rail, two branch
It is connected between dagger by the connecting column.
Beneficial effect using above-mentioned further scheme is that structure is simple, and stability is good.
Further, first fixing piece includes the first bolt and the first lantern ring, and the first lantern ring sliding sleeve sets described
On connecting column, circumferentially arranged with two second location holes on first lantern ring, and it is oppositely arranged, along axis on the connecting column
Multiple third through-holes are equipped with to being spaced apart, the CCD camera is fixed on first lantern ring, when first lantern ring slides,
Two second location holes slide into be connected to the both ends of the third through-hole respectively, and first bolt is inserted into described in two
Second location hole and the third through-hole, first lantern ring is fixed on the connecting column.
Beneficial effect using above-mentioned further scheme is by the difference between second location hole and multiple third through-holes
The adjusting of CCD camera position is realized in combination, simulates the acquisition of the Pcnten-1 yne-4 image of the downwash flow field of different location, operation letter
Just.
Further, second fixing piece includes the second bolt and the second lantern ring, and second lantern ring is slidably located in it
In on a support column, circumferentially arranged with two third location holes on second lantern ring, and it is oppositely arranged, the support
Axially spaced on column to offer multiple fourth holes, the laser generator is fixed on second lantern ring, and described second
When lantern ring is mobile, two third location holes slide into and are connected to respectively with the both ends of the fourth hole, second bolt
It is inserted into two third location holes and the fourth hole, second lantern ring is fixed on the support column.
Beneficial effect using above-mentioned further scheme is by between third location hole and multiple and different fourth holes
Various combination realizes the adjusting of laser generator position, thus preferably cooperate with CCD camera, it is easy to operate.
A method of downwash flow field, including following step are measured using unmanned plane sprinkling downwash flow field measuring device
It is rapid:
S1: according to the model of the unmanned plane of simulation, adjusting the distance between axles of rotor shaft, to unmanned plane rotor quantity, wheelbase into
Row setting, and select the unmanned plane rotor being consistent；
S2: according to the sprinkling state of the unmanned plane of simulation, adjusting flow control valve, sets spray rate, controller control
The speed of Telescopic-cylinder, to control the forward speed of unmanned plane；
S3: changing the position of the CCD camera and the laser generator, shoot to downwash flow field, obtains specific
The downwash flow field data of height levels or vertical plane, test and assess to unmanned plane downwash flow field.
Beneficial effect using above-mentioned further scheme is the situation of the simulation unmanned plane sprinkling of various dimensions, to different situations
The spray effect of lower unmanned plane is evaluated, to find out the best sprinkling state of unmanned plane in different situations.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of the utility model；
Fig. 2 is the second structural representation of the utility model；
Fig. 3 is the structural schematic diagram of diamond shape variable support in the utility model；
Fig. 4 is the circuit block diagram in the utility model.
In attached drawing, parts list represented by the reference numerals are as follows:
1, guide rail, 2, CCD camera, 3, laser generator, 4, fuselage, 5, rotor shaft, 6, motor, 7, propeller, 8, connection
Bar, 9, support rod, 10, support quarter butt, 11, support stock, 12, first positioning hole, 13, first through hole, the 14, second through-hole,
15, air velocity transducer, 16, fluid reservoir, 17, water pump, 18, flow control valve, 19, pressure sensor, 20, flow sensor,
21, spray head, 22, support column, 23, connecting column, the 24, first lantern ring, 25, second location hole, 26, third through-hole, 27, second sets
Ring, 28, third location hole, 29, fourth hole, 30, diamond shape variable support.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with drawings and the specific embodiments, example is only used
In explaining the utility model, it is not intended to limit the scope of the utility model.
As shown in Figures 1 to 4, the utility model provides a kind of unmanned plane sprinkling downwash flow field measurement based on PIV system
Device, including support frame, two guide rails, 1, two bracket, cylinder, spraying mechanism and PIV system, PIV system include control
Device, CCD camera 2 and laser generator 3, CCD camera 2 and laser generator 3 are slidably arranged on support frame, and guide rail 1 is horizontal
Setting, two guide rails 1 are arranged side by side on the support frame, and two brackets are separately positioned on two guide rails 1, spraying mechanism setting
Wherein on a bracket, unmanned plane is located at the top of two brackets, and its two sides passes through connector respectively and connect with two brackets,
Cylinder is disposed therein one end of a guide rail 1, and the telescopic end of its telescopic rod is fixedly connected with corresponding bracket, cylinder and control
Device electrical connection processed, cylinder driving arm, unmanned plane and spraying mechanism are moved along guide rail 1, and CCD camera 2 acquires unmanned plane and moves
The downwash flow field image of spraying mechanism sprinkling when dynamic.When work, bracket and unmanned plane and spraying mechanism edge are driven by cylinder
Guide rail 1 it is mobile, simulate the state of unmanned plane during flying, while spraying mechanism sprays liquid；Laser generator 3 generates laser, shines
The path that bright sprinkling liquid falls, the downwash flow field image of spraying mechanism sprinkling when CCD camera 2 acquires unmanned plane movement, so as to
The spray effect of unmanned plane under different flying conditions is evaluated.
In the utility model, unmanned plane includes fuselage 4, multiple rotor shafts 5, multiple motors 6, multiple propellers 7 and more
A telescoping shoring column, fuselage 4 are cylinder, and multiple propellers 7 are uniformly distributed circumferentially in the periphery of fuselage 4, and opposite two-by-two
The output shaft of setting, each propeller 7 and motor 6 is sequentially connected, and generallys use welding or bolted mode, dismounting side
Just；Motor 6 is fixed on one end of rotor shaft 5, is connected between two opposite rotor shafts 5 by telescoping shoring column, scalable branch
The both ends of frame weld together with the corresponding end of corresponding two rotor shafts 5 respectively, and telescoping shoring column is fixed on fuselage 4.It can
Telescope support preferentially uses diamond shape variable support 30, and corresponding end of the diamond shape variable support 30 respectively with two rotor shafts 5 is welded on
Together, it stretches diamond shape variable support 30 and is fixed by fixing piece, fixing piece uses bolt, diamond shape variable support 30 herein
It is equipped with screw hole on fuselage 4, to adjust the wheelbase between two propellers 7, to simulate nobody of different 5 spacing of rotor shaft
The state of flight of machine.
It should be noted that the quantity of rotor shaft 5 is designed according to actual needs, the quantity of rotor shaft 5 is at least four
It is a, when installation, connected between two rotor shafts 5 being oppositely arranged by diamond shape variable support 30, multiple diamond shape variable supports 30
Stacking is fixed on fuselage 4.
In the utility model, bracket includes connecting rod 8 and two support rods 9, and connecting rod 8 is located at the top of guide rail 1 and puts down
Row is arranged in guide rail 1, and support rod 9 is vertically arranged, and the upper end of support rod 9 is fixedly connected (welding) with the lower end of connecting rod 8, and
Its lower end is slidably connected with guide rail 1, specific connection type are as follows: the section of guide rail 1 is C-shaped, and the lower end of each support rod 9 is equipped with limit
Position plate, limit plate are stuck in guide rail 1, and support rod 9 is avoided to be detached from guide rail 1；In addition, to reduce equipment attrition, it can be in limit plate
Multiple balls are laid in lower end, and the sliding friction between limit plate and guide rail 1 is changed into rolling friction by ball, reduce equipment mill
Damage, prolongs its service life.Connector includes support quarter butt 10, support stock 11, fixed plate and two bolts, unmanned plane
It is fixed in fixed plate, fixed plate generallys use welding or bolted mode is fixed on the fuselage 4 of unmanned plane, supports short
The upper end of bar 10 and the lower end of fuselage 4 are hinged, and lower end is fixedly connected (welding) with connecting rod 8, support on stock 11 along axial direction
Multiple first positioning holes 12 are offered, multiple first through hole 13 are provided in the axial direction in connecting rod 8, between the middle part of fixed plate is uniform
Every being equipped with multiple second through-holes 14, when mobile support stock 11, two first positioning holes 12 are movable to respectively and arbitrarily thereon
First through hole 13 is connected to the second through-hole 14, and two bolts are inserted into two first positioning holes 12 respectively and communicate therewith respectively
First through hole 13 and the second through-hole 14, will support stock 11 to fix respectively with fixed plate and connecting rod 8, and adjust nobody
The gradient of machine, so that the sprinkling Pcnten-1 yne-4 situation of the unmanned plane of different gradients is simulated, it is easy to adjust quick.
In the utility model, rotor shaft 5 is equipped with air velocity transducer 15, detects unmanned plane during flying by air velocity transducer 15
When wind speed, and send corresponding wind velocity signal to controller, controller receives corresponding wind velocity signal and simultaneously analyzes processing.
In the utility model, spraying mechanism includes the fluid reservoir 16 being sequentially communicated by pipeline, water pump 17, flow control valve
18, pressure sensor 19, flow sensor 20 and spray head 21, fluid reservoir 16, water pump 17, flow control valve 18, pressure sensing
Device 19, flow sensor 20 and spray head 21 are each attached to the downside of connecting rod 8, and the mode for generalling use welding is fixed,
It is convenient for disassembly and assembly；Spray head 21 be vertically arranged and its spout downward, water pump 17, flow control valve 18, pressure sensor 19, flow pass
Sensor 20 and air velocity transducer 15 are electrically connected with the controller respectively.When work, water pump 17 is opened, water pump 17 will be in fluid reservoir 16
Liquid send to spray head 21 and sprayed, the flow of liquid in 20 real-time monitoring pipeline of flow sensor, and by corresponding flow
Signal sends controller to, and controller adjusts the flow of liquid according to wind speed and flow signal control flow control valve 18, from
And adjust the speed that spray head 21 sprays liquid.
In the utility model, support frame includes two H-shaped framves being oppositely arranged, and H-shaped frame includes two 22 Hes of support column
Connecting column 23, support column 22 are vertically arranged, and the upper end is fixedly connected (welding) with the lower end of corresponding guide rail 1, two branch
It is connected between dagger 22 by connecting column 23, the both ends of connecting column 23 weld together with two support columns 22 respectively.
In the utility model, the first fixing piece includes the first bolt and the first lantern ring 24, and the first lantern ring 24 slides the company of being arranged
It connects on column 23, circumferentially arranged with two second location holes 25 on the first lantern ring 24, and it is oppositely arranged, along axial direction on connecting column 23
It is spaced apart and is equipped with multiple third through-holes 26, CCD camera 2 is fixed on the first lantern ring 24, generallys use welding or bolted
Mode, it is convenient for disassembly and assembly；When first lantern ring 24 slides, two second location holes 25 slide into be connected with the both ends of third through-hole 26 respectively
Logical, the first bolt is inserted into two second location holes 25 and third through-hole 26, and the first lantern ring 24 is fixed on connecting column 23,
To change the position of CCD camera 2, Pcnten-1 yne-4 situation situation is sprayed to shoot the downwash flow field of different location.
In the utility model, the second fixing piece includes the second bolt and the second lantern ring 27, and the second lantern ring 27 is slidably located in
Wherein on a support column 22, circumferentially arranged with two third location holes 28 on the second lantern ring 27, and it is oppositely arranged, support column
Axially spaced on 22 to offer multiple fourth holes 29, laser generator 3 is fixed on the second lantern ring 27, and the second lantern ring 27 moves
When dynamic, two third location holes 28 slide into be connected to the both ends of fourth hole 29 respectively, and it is fixed that the second bolt is inserted into two thirds
Position hole 28 and fourth hole 29, the second lantern ring 27 are fixed on support column 22, to adjust the position of laser generator 3
It sets, in order to the cooperation of CCD camera 2.
It should be noted that CCD camera 2 and the position of laser generator 3 are interchangeable, to obtain the horizontal plane of certain height
Or the downwash flow field data of vertical plane, it tests and assesses to unmanned plane downwash flow field.
A method of downwash flow field, including following step are measured using unmanned plane sprinkling downwash flow field measuring device
It is rapid:
S1: according to the model of the unmanned plane of simulation, adjusting the distance between axles of rotor shaft 5, to unmanned plane rotor quantity, wheelbase into
Row setting, and select the unmanned plane rotor being consistent；
S2: according to the sprinkling state of the unmanned plane of simulation, flow control valve 18 is adjusted, sets spray rate, controller control
The speed of Telescopic-cylinder processed, to control the forward speed of unmanned plane；
S3: changing the position of CCD camera 2 and laser generator 3, shoot to downwash flow field, obtains certain height water
The downwash flow field data of plane or vertical plane, test and assess to unmanned plane downwash flow field.
In downwash flow polymerization process, there are certain speeds by downwash flow induction for rotor gap flow.It is exerted according to uncle
Sharp principle, when only gas flows downward at this, air pressure is lower than external atmospheric pressure on the inside of downwash flow, to occur between downwash flow
Assembly effect.Point between two rotor shafts 5 being oppositely arranged on perpendicular bisector is equal to two sides downwash flow vertical range, can
Think identical by two sides downwash flow influence degree at this.Defining the point is point O, crosses on the contour of O point and there is maximum speed
Spend Vmax, point O speed is VO, then the speed gaining rate η that point O is induced by downwash flow and generated is formula (1):
Define the downwash flow degree of polymerization μ expression formula such as (2):
V in formulamax--- the peak velocity on the high horizontal line such as point O, m/s, vector；VO--- the speed of point O, m/s, arrow
Amount；H --- the wheelbase between adjacent rotor, m.
In vertical plane, downwash flow field is evaluated and tested with downwash flow degree of polymerization μ.
The utility model, can not only be in the case where not contacting by the setting to CCD camera 2 and 3 installation site of laser generator
It washes in the case of flow field and is detected, and the downwash flow field state of this dimension of perpendicular can be detected.Reduce experimental error,
The dimension of testing result is improved, more reference values are provided.
It should be noted that motor (model N20), cylinder (model GHQ-40), CCD involved by the utility model
Camera (model JT-2100B), laser generator (model LQD-31N0), pressure sensor (model LST), flow sensor (type
Number EFS-01P), water pump (model MP-40R), flow control valve (model ZCT) and controller (model TC-SCR) be all made of it is existing
There is technology, and above-mentioned all parts are electrically connected with the controller, the control circuit between controller and all parts is existing skill
Art.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of unmanned plane based on PIV system sprays downwash flow field measuring device, it is characterised in that: including support frame, two
Guide rail (1), two brackets, cylinder, spraying mechanism and PIV system, the PIV system include controller, CCD camera (2) and
Laser generator (3), the CCD camera (2) and the laser generator (3) are slidably arranged on support frame as described above, and point
It is not fixed by the first fixing piece and the second fixing piece, the guide rail (1) is horizontally disposed, and two guide rails (1) are side by side
It is arranged on support frame as described above, two brackets are slidably disposed in respectively on two guide rails (1), the spraying machine
Structure is disposed therein on a bracket, and unmanned plane is located at the top of two brackets, and its two sides passes through connector respectively
Connect with two brackets, the cylinder is disposed therein one end of a guide rail (1), and its telescopic rod with it is corresponding
The bracket is fixedly connected, and the cylinder is electrically connected with the controller, the cylinder drive the bracket, the unmanned plane with
And the spraying mechanism is mobile along the guide rail (1), the CCD camera (2) acquires sprinkling when unmanned plane movement
The downwash flow field image of mechanism sprinkling.
2. a kind of unmanned plane based on PIV system according to claim 1 sprays downwash flow field measuring device, feature exists
In: the bracket include connecting rod (8) and two support rods (9), the connecting rod (8) be located at the top of the guide rail (1) and
It is parallel to the guide rail (1) setting, the support rod (9) is vertically arranged, the upper end of the support rod (9) and the connecting rod
(8) lower end is fixedly connected, and its lower end is slidably connected with the guide rail (1)；The connector includes support quarter butt (10), branch
Support stock (11), fixed plate and two bolts, unmanned plane are fixed in the fixed plate, the upper end of support quarter butt (10)
Hinged with one end of the fixed plate, lower end is fixedly connected with the connecting rod (8), along axial direction on the support stock (11)
It offers multiple first positioning holes (12), is provided in the axial direction with multiple first through hole (13), the fixation on the connecting rod (8)
The middle part uniform intervals of plate offer multiple second through-holes (14), when mobile support stock (11), two described the thereon
A positioning hole (12) is movable to be connected to any first through hole (13) and second through-hole (14) respectively, two institutes
It states bolt and is inserted into two first positioning holes (12) and the first through hole (13) communicated therewith respectively and described respectively
Second through-hole (14) fixes the support stock (11) with the fixed plate and the connecting rod (8) respectively.
3. a kind of unmanned plane based on PIV system according to claim 2 sprays downwash flow field measuring device, feature exists
In: the spraying mechanism includes the fluid reservoir (16), water pump (17), flow control valve (18), pressure being sequentially communicated by pipeline
Sensor (19), flow sensor (20) and spray head (21), the fluid reservoir (16), the water pump (17), the flow tune
Section valve (18), the pressure sensor (19), the flow sensor (20) and the spray head (21) are each attached to the connection
The downside of bar (8), the spray head (21) be vertically arranged and its spout downward, unmanned plane be equipped with air velocity transducer (15), it is described
Water pump (17), the flow control valve (18), the pressure sensor (19), the flow sensor (20) and the wind speed
Sensor (15) is electrically connected with the controller respectively.
4. a kind of unmanned plane based on PIV system according to claim 1 sprays downwash flow field measuring device, feature exists
In: support frame as described above includes two H-shaped framves being oppositely arranged, and the H-shaped frame includes two support columns (22) and connecting column
(23), the support column (22) is vertically arranged, and the upper end is fixedly connected with the lower end of the corresponding guide rail (1), and two
It is connected between the support column (22) by the connecting column (23).
5. a kind of unmanned plane based on PIV system according to claim 4 sprays downwash flow field measuring device, feature exists
In: first fixing piece includes the first bolt and the first lantern ring (24), and the first lantern ring (24) sliding is arranged the connection
On column (23), circumferentially arranged with two second location holes (25) on first lantern ring (24), and it is oppositely arranged, the connection
Axially spaced on column (23) to offer multiple third through-holes (26), the CCD camera (2) is fixed on first lantern ring (24)
On, first lantern ring (24) slide when, two second location holes (25) slide into respectively with the third through-hole (26)
Both ends connection, first bolt is inserted into two second location holes (25) and the third through-hole (26), by institute
The first lantern ring (24) is stated to be fixed on the connecting column (23).
6. a kind of unmanned plane based on PIV system according to claim 4 sprays downwash flow field measuring device, feature exists
It include the second bolt and the second lantern ring (27) in: second fixing piece, second lantern ring (27) is slidably located in wherein one
On the support column (22), circumferentially arranged with two third location holes (28) on second lantern ring (27), and it is oppositely arranged,
Axially spaced on the support column (22) to offer multiple fourth holes (29), the laser generator (3) is fixed on described
On second lantern ring (27), when second lantern ring (27) is mobile, two third location holes (28) slide into respectively with it is described
The both ends of fourth hole (29) are connected to, and second bolt is inserted into two third location holes (28) and the fourth hole
(29), second lantern ring (27) is fixed on the support column (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821571604.1U CN208902145U (en) | 2018-09-26 | 2018-09-26 | A kind of unmanned plane sprinkling downwash flow field measuring device based on PIV system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821571604.1U CN208902145U (en) | 2018-09-26 | 2018-09-26 | A kind of unmanned plane sprinkling downwash flow field measuring device based on PIV system |
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| Publication Number | Publication Date |
|---|---|
| CN208902145U true CN208902145U (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821571604.1U Expired - Fee Related CN208902145U (en) | 2018-09-26 | 2018-09-26 | A kind of unmanned plane sprinkling downwash flow field measuring device based on PIV system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981789A (en) * | 2018-09-26 | 2018-12-11 | 武汉科技大学 | A kind of unmanned plane sprinkling downwash flow field measuring device and method based on PIV system |
-
2018
- 2018-09-26 CN CN201821571604.1U patent/CN208902145U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981789A (en) * | 2018-09-26 | 2018-12-11 | 武汉科技大学 | A kind of unmanned plane sprinkling downwash flow field measuring device and method based on PIV system |
| CN108981789B (en) * | 2018-09-26 | 2024-10-18 | 武汉科技大学 | Unmanned aerial vehicle spraying down-wash-field measuring device and method based on PIV system |
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Granted publication date: 20190524 Termination date: 20190926 |