CN110824191B - Layered velocity meter - Google Patents
Layered velocity meter Download PDFInfo
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- CN110824191B CN110824191B CN201911127219.7A CN201911127219A CN110824191B CN 110824191 B CN110824191 B CN 110824191B CN 201911127219 A CN201911127219 A CN 201911127219A CN 110824191 B CN110824191 B CN 110824191B
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- velocity
- flow
- rod
- pole
- connecting rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
- G01P5/06—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes
- G01P5/07—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes with electrical coupling to the indicating device
Abstract
The invention discloses a layered speed measurement current meter, which comprises a horizontal frame and a current rod, wherein the surface of the current rod is movably connected with an inner cavity of the horizontal frame, a connecting rod is sleeved on the surface of the current rod, and the surface of the connecting rod is respectively and movably connected with a top plate, a partition plate and a bottom plate. This layering velocimeter, when beginning to measure, insert the river with the velocity of flow pole in, until in the silt, the bottom plate is on the silt upper strata, this has guaranteed that the sectional type screw can not wrapped up by the silt, secondly the sectional type screw need not consider and velocity of flow vertically problem, because every direction of sectional type screw all is perpendicular with the velocity of flow, after the silt is touch to the bottom plate, the velocity of flow pole can also be down stretched always, stop until touchhing hard earth or stone, after the measurement, reset spring resets, record velocity of flow data final transmission to display controller, so measure the different sections in river course repeatedly, the accuracy has both been guaranteed and the time has also been practiced thrift.
Description
Technical Field
The invention relates to the technical field of flow velocity meters, in particular to a layered velocity meter.
Background
The portable optical fiber flow velocity instrument is an optical fiber flow velocity measuring instrument made by applying an optical fiber signal acquisition principle, a common flow velocity instrument such as a rotary propeller flow velocity instrument, an ultrasonic flow velocity instrument, a Doppler flow velocity instrument and the like is mostly only a flow velocity instrument for measuring flow velocity, the optical fiber type portable flow velocity flow instrument can measure flow velocity, measure flow, water quantity and the like, the measured flow velocity is accurate, the measured flow velocity can be as low as 0.01M/S at the minimum, the instrument is equipment with the minimum starting flow velocity and small measurement error, the flow velocity is detected by using an optical fiber technology, a sensor is along the water flow direction, the flow field is not damaged, and the signal transmission is; the measuring precision is high, the flow measurement is linear, and the instantaneous flow velocity and the average flow velocity can be measured; need not other supporting facilities, the probe is very durable, portable current meter velocity of flow appearance's application is very extensive, current meter uses water conservancy hydrology station, irrigation of farmland, open channel ditch canal, river course gallery water course, factory mining area groundwater, environmental protection testing station, the laboratory research institute, the water conservancy system of school, fresh water sea water institute, geological survey institute, the unit of professional water conservancy hydrology research velocity of flow such as water administration, the instrument measurement is accurate, and is simple and convenient to use, and convenient to carry, the maintenance is simple, be the current best velocity of flow appearance ware of using, can order to do non-standard product, can order to some specific departments and specific environment specially, reach the measuring requirement, it is accurate quick to measure.
When a common flow velocity meter is used for measuring flow velocity, a propeller is parallel to the flow velocity, but in the actual operation process, the propeller is difficult to be 100% parallel, so that the flow velocity measurement error is caused. Another problem is that when measuring the bottom layer flow velocity, it is difficult to judge the thickness of the bottom mud, so the propeller may be buried in the mud, resulting in inaccurate measurement results, and when performing the measurement, only a single layer of measurement can be performed, and the resulting structure is relatively flat.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a layered velocity measurement flow meter, which solves the problem that when the flow meter is used for measuring the flow velocity, a propeller is required to be parallel to the flow velocity, but in the actual operation process, the propeller is difficult to be 100% parallel, so that the flow velocity measurement error is caused. Another problem is that when measuring the bottom layer flow velocity, it is difficult to judge the thickness of the bottom mud, and thus the propeller may be buried in the mud, resulting in a problem that the measurement result is not accurate.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a layered speed measurement current meter comprises a horizontal frame and a current rod, wherein the surface of the current rod is movably connected with the inner cavity of the horizontal frame, a connecting rod is sleeved on the surface of the current rod, the surface of the connecting rod is respectively and movably connected with a top plate, a separation plate and a bottom plate from top to bottom, the surface of the connecting rod is movably connected with a rotor current meter, a sleeve is fixedly connected with the surface of the rotor current meter, a segmented propeller is fixedly connected with the surface of the sleeve, the bottom of the top plate is mutually abutted with the top end of the sleeve, the surface of the separation plate is mutually abutted with one end of the sleeve, the top of the bottom plate is mutually abutted with the bottom end of the sleeve, an upper fixing ferrule is connected with the surface of the current rod above the top plate in a threaded manner, a lower fixing ferrule is connected with the surface of the current rod below the bottom plate in a threaded, the flow velocity rod is located the fixed surface of connecting rod inner chamber and is connected with first baffle to the flow velocity rod is located the sliding surface of connecting rod inner chamber and is connected with the second baffle, reset spring's top and the bottom fixed connection of first baffle, the one end that reset spring kept away from first baffle and the top swing joint of second baffle.
Preferably, the sleeve is provided with a plurality of sleeves which are uniformly distributed on the surface of the connecting rod, the bottom of the second baffle is mutually abutted with the top of the lower fixing ferrule, and the outer diameter of the second baffle is smaller than that of the lower fixing ferrule.
Preferably, the top end of the flow rod is fixedly connected with a display controller through a positive connecting wire, and the bottom of the display controller is fixedly connected with the bottom end of the flow rod through a negative connecting wire.
Preferably, the inner chamber of horizontal stand has the joint piece through joint groove joint, the bottom of velocity of flow pole runs through the top of joint piece and extends to the below of joint piece, the surface of velocity of flow pole and the inner chamber threaded connection of joint piece, the surface from the top down of velocity of flow pole threaded connection respectively has first screw ring and second screw ring, the bottom of first screw ring is contradicted each other with the top of joint piece to the top of second screw ring is contradicted each other with the bottom of joint piece.
Preferably, the bottom of the horizontal frame is movably connected with a supporting block, the top of the supporting block is fixedly connected with a mandril, the top end of the mandril penetrates through the bottom of the horizontal frame and extends to the inner cavity of the horizontal frame, the surface of the mandril is in sliding connection with the inner cavity of the horizontal frame, the surface of the mandril is in threaded connection with a horizontal ring, and the top of the horizontal ring is in mutual interference with the bottom of the horizontal frame.
Preferably, a display screen is fixedly connected to the surface of the display controller.
Preferably, the inner cavities of the two sides of the horizontal frame are provided with weight reduction grooves, and the two sides of the surface of the horizontal frame are fixedly connected with gradienters.
Preferably, the surface of the flow velocity rod is provided with scale lines.
(III) advantageous effects
The invention provides a layered velocimeter. Compared with the prior art, the method has the following beneficial effects:
(1) the layered velocimetry comprises a flow rate rod, a connecting rod is sleeved on the surface of the flow rate rod and movably connected with an inner cavity of a horizontal frame, a top plate, a partition plate and a bottom plate are respectively and movably connected with the surface of the connecting rod from top to bottom, a rotor velocimeter is movably connected with the surface of the connecting rod, a sleeve is fixedly connected with the surface of the rotor velocimetry, a segmented propeller is fixedly connected with the surface of the sleeve, the bottom of the top plate is mutually abutted against the top end of the sleeve, the surface of the partition plate is mutually abutted against one end of the sleeve, the top of the bottom plate is mutually abutted against the bottom end of the sleeve, an upper fixing ferrule is connected with the surface of the flow rate rod above the top plate, a lower fixing ferrule is connected with the surface of the flow rate rod below the bottom plate through a thread, a reset spring is sleeved on the, and the surface of the flow velocity rod, which is positioned in the inner cavity of the connecting rod, is slidably connected with a second baffle plate, the top end of a return spring is fixedly connected with the bottom of the first baffle plate, one end of the return spring, which is far away from the first baffle plate, is movably connected with the top of the second baffle plate, when the measurement is started, the flow rate rod is inserted into the river until the silt is in the bottom plate on the upper layer of the silt, which ensures that the sectional propeller is not wrapped by the silt, secondly, the segmented propeller does not need to take into account the problem of being perpendicular to the flow velocity, since the segmented propeller is perpendicular to the flow velocity in every direction, when the bottom plate is contacted with the silt, the flow velocity rod can extend downwards all the time until the flow velocity rod is contacted with hard mud or stones, when the measurement is finished, the reset spring resets, the recorded flow rate data is finally transmitted to the display controller, so measure the different sections of river course repeatedly, both guaranteed the accuracy and also practiced thrift the time.
(2) This layering velocity-measuring current meter, it is provided with a plurality ofly through the sleeve when measuring, and the surperficial evenly distributed at the connecting rod, the bottom of second baffle is contradicted each other with the top of lower fixed lasso, and the external diameter of second baffle is less than the external diameter of lower fixed lasso, through adjusting the position of connecting rod on the velocity of flow pole, control the degree of depth that the sectional type screw inserted the aquatic, the sectional type screw adopts detachable design, when needing to measure a plurality of depths of aquatic, can load a plurality of sectional type screws and guarantee once to measure the completion, can measure the velocity of flow of a plurality of depths of aquatic simultaneously, and is simple in operation and convenient to use.
(3) This layering velocity-measuring current meter, there is the supporting shoe through the bottom swing joint at the horizontal bracket, the top fixed connection ejector pin of supporting shoe, the bottom of horizontal bracket is run through on the top of ejector pin and extends to the inner chamber of horizontal bracket, the surface of ejector pin and the inner chamber sliding connection of horizontal bracket, ejector pin surface threaded connection has the horizontal ring, and the top of horizontal ring is contradicted each other with the bottom of horizontal bracket, when measuring, judge whether the horizontal bracket is in the horizontality through the spirit level on the horizontal bracket, and through rotating the both sides jack-up of horizontal bracket of horizontal ring, adjust the levelness of horizontal bracket, can be so that the horizontal bracket is in a horizontally state always, make measuring result more accurate.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a front view of the segmented propeller configuration of the present invention;
FIG. 3 is an enlarged view of a portion of the structure of FIG. 2;
FIG. 4 is a top view of the segmented propeller structure of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 1 at B according to the present invention;
fig. 6 is an enlarged view of a portion of the structure of fig. 1 at C.
In the figure, 1-horizontal frame, 2-flow rod, 3-connecting rod, 4-top plate, 5-separation plate, 6-bottom plate, 7-rotor flow meter, 8-sleeve, 9-sectional propeller, 10-upper fixed ferrule, 11-lower fixed ferrule, 12-reset spring, 13-first baffle, 14-second baffle, 15-positive pole connecting wire, 16-display controller, 17-negative pole connecting wire, 18-clamping groove, 19-level meter, 20-clamping block, 21-first threaded ring, 22-second threaded ring, 23-supporting block, 24-ejector rod, 25-horizontal ring, 26-display screen and 27-weight reduction groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, an embodiment of the present invention provides a technical solution: a layered velocity measurement flow meter comprises a horizontal frame 1 and a flow rate rod 2, wherein the surface of the flow rate rod 2 is provided with scale lines, inner cavities on two sides of the horizontal frame 1 are respectively provided with a weight reduction groove 27, the whole weight of the horizontal frame 1 is reduced through the weight reduction grooves 27, two sides of the surface of the horizontal frame 1 are respectively and fixedly connected with a level instrument 19, the bottom of the horizontal frame 1 is movably connected with a supporting block 23, the top of the supporting block 23 is fixedly connected with a mandril 24, the top end of the mandril 24 penetrates through the bottom of the horizontal frame 1 and extends to the inner cavity of the horizontal frame 1, the surface of the mandril 24 is in sliding connection with the inner cavity of the horizontal frame 1, the surface of the mandril 24 is in threaded connection with a horizontal ring 25, the top of the horizontal ring 25 is mutually abutted against the bottom of the horizontal frame 1, when measurement is carried out, whether the horizontal frame 1 is in a horizontal state is, the levelness of the horizontal frame 1 is adjusted, the horizontal frame 1 can be always in a horizontal state, so that the measuring result is more accurate, a clamping block 20 is clamped in an inner cavity of the horizontal frame 1 through a clamping groove 18, the bottom end of a flow rate rod 2 penetrates through the top of the clamping block 20 and extends to the lower part of the clamping block 20, the surface of the flow rate rod 2 is in threaded connection with the inner cavity of the clamping block 20, the surface of the flow rate rod 2 is in threaded connection with a first threaded ring 21 and a second threaded ring 22 from top to bottom respectively, the bottom of the first threaded ring 21 is in mutual interference with the top of the clamping block 20, the top of the second threaded ring 22 is in mutual interference with the bottom of the clamping block 20, the top end of the flow rate rod 2 is fixedly connected with a display controller 16 through a positive connecting wire 15, a display screen 26 is fixedly connected to the surface of the display controller 16, when the flow rate is measured, the propeller sectional type 9 is, the built-in rotor current meter 7 generates revolution signals, the display controller 16 calculates the flow velocity, the structure is mature in the prior art and is not repeated, the bottom of the display controller 16 is fixedly connected with the bottom end of the current rod 2 through a negative connecting wire 17, the surface of the current rod 2 is movably connected with the inner cavity of the horizontal frame 1, the surface of the current rod 2 is sleeved with a connecting rod 3, the surface of the connecting rod 3 is respectively and movably connected with a top plate 4, a partition plate 5 and a bottom plate 6 from top to bottom, the surface of the connecting rod 3 is movably connected with the rotor current meter 7, the surface of the rotor current meter 7 is fixedly connected with a sleeve 8, the surface of the sleeve 8 is fixedly connected with a segmented propeller 9, the sleeve 8 is provided with a plurality of sleeves which are uniformly distributed on the surface of the connecting rod 3, the bottom of the second baffle plate 14 is mutually abutted to the top of the lower fixing ferrule 11, and the, the bottom of the top plate 4 is mutually abutted against the top end of the sleeve 8, the surface of the separation plate 5 is mutually abutted against one end of the sleeve 8, the top of the bottom plate 6 is mutually abutted against the bottom end of the sleeve 8, the surface of the flow rate rod 2 positioned above the top plate 4 is in threaded connection with an upper fixing ferrule 10, the surface of the flow rate rod 2 positioned below the bottom plate 6 is in threaded connection with a lower fixing ferrule 11, the depth of the sectional type propeller 9 inserted into water is controlled by adjusting the position of the connecting rod 3 on the flow rate rod 2, the sectional type propeller 9 adopts a detachable design, when a plurality of depths in water need to be measured, a plurality of sectional type propellers 9 can be loaded to ensure that one-time measurement is completed, the flow rates of a plurality of depths in the water can be simultaneously measured, the operation is simple, the use is convenient, the surface of the flow rate rod 2 positioned in the inner cavity of the, and the surface of the flow velocity pole 2 in the cavity of the connecting rod 3 is connected with a second baffle plate 14 in a sliding way, the top end of a reset spring 12 is fixedly connected with the bottom of a first baffle plate 13, one end of the reset spring 12 far away from the first baffle plate 13 is movably connected with the top of the second baffle plate 14, when the measurement is started, the flow velocity pole 2 is inserted into the river until the sludge is in, the bottom plate 6 is on the upper layer of the sludge, which ensures that the sectional propeller 9 can not be wrapped by the sludge, secondly, the sectional propeller 9 does not need to consider the problem vertical to the flow velocity, because each direction of the sectional propeller 9 is vertical to the flow velocity, when the bottom plate 6 touches the sludge, the flow velocity pole 2 can also extend downwards until touching hard soil or stones to stop, after the measurement is finished, the reset spring 12 resets, the recorded flow velocity data is finally transmitted to a display controller 16, so as to, not only ensuring the accuracy but also saving the time.
When the device is used, firstly, data such as river channel width, flow rate acquisition time and the like are set, the data are input into the display controller 16, then the flow rate rod 2 penetrates through the clamping block 20 in the horizontal frame 1, the flow rate rod 2 is fixed on the horizontal frame 1 by screwing the first threaded ring 21 and the second threaded ring 22, the depth of the river channel is measured in advance, the upper fixing ferrule 10 and the lower fixing ferrule 11 are loosened on the flow rate rod 2, then the top plate 4, the partition plate 5 and the bottom plate 6 are slid to adjust the position of the sectional type propeller 9 on the flow rate rod 2, after the adjustment is finished, the upper fixing ferrule 10 and the lower fixing ferrule 11 are fastened to finish the installation, the horizontal frame 1 is placed on the flat ground through the supporting block 23, the sectional type propeller 9 extends into the water, the bottom end of the flow rate rod 2 is inserted into silt, the bottom of the bottom plate 6 is contacted with the silt, the levelness of the horizontal frame 1 is judged, the horizontal frame 1 is driven to ascend upwards by rotating the horizontal ring 25 on the ejector rod 24, the levelness of the horizontal frame 1 is adjusted, after the levelness is adjusted, the rotor flow velocity meter 7 is driven to measure the speed when the sectional propeller 9 rotates, and the speed is transmitted to the display screen 26 in the display controller 16 through the positive connecting wire 15 and the negative connecting wire 17 to be displayed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a layering velocity measuring flow meter, includes horizontal stand (1) and velocity of flow pole (2), the surface of velocity of flow pole (2) and the inner chamber swing joint of horizontal stand (1), its characterized in that: the surface of the flow rate rod (2) is sleeved with a connecting rod (3), the surface of the connecting rod (3) is respectively and movably connected with a top plate (4), a partition plate (5) and a bottom plate (6) from top to bottom, the surface of the connecting rod (3) is movably connected with a rotor flow rate instrument (7), the surface of the rotor flow rate instrument (7) is fixedly connected with a sleeve (8), the surface of the sleeve (8) is fixedly connected with a sectional type propeller (9), the bottom of the top plate (4) is mutually abutted with the top end of the sleeve (8), the surface of the partition plate (5) is mutually abutted with one end of the sleeve (8), the top of the bottom plate (6) is mutually abutted with the bottom end of the sleeve (8), the surface of the flow rate rod (2) above the top plate (4) is in threaded connection with an upper fixing ferrule (10), and the surface of the flow rate rod (2) below the bottom plate (6) is in, the surface cover that velocity of flow pole (2) are located connecting rod (3) inner chamber is equipped with reset spring (12), velocity of flow pole (2) are located the first baffle (13) of fixed surface of connecting rod (3) inner chamber to velocity of flow pole (2) are located the surface sliding connection of connecting rod (3) inner chamber and are connected with second baffle (14), the bottom fixed connection of the top of reset spring (12) and first baffle (13), the top swing joint of one end and second baffle (14) of first baffle (13) are kept away from in reset spring (12).
2. The layered velocimetry of claim 1, characterized in that: the sleeve (8) is provided with a plurality of sleeves which are uniformly distributed on the surface of the connecting rod (3), the bottom of the second baffle (14) is mutually abutted to the top of the lower fixing ferrule (11), and the outer diameter of the second baffle (14) is smaller than that of the lower fixing ferrule (11).
3. The layered velocimetry of claim 1, characterized in that: the top end of the flow velocity rod (2) is fixedly connected with a display controller (16) through a positive pole connecting wire (15), and the bottom of the display controller (16) is fixedly connected with the bottom end of the flow velocity rod (2) through a negative pole connecting wire (17).
4. The layered velocimetry of claim 1, characterized in that: the inner chamber of horizontal stand (1) has joint piece (20) through joint groove (18) joint, the bottom of velocity of flow pole (2) runs through the top of joint piece (20) and extends to the below of joint piece (20), the surface of velocity of flow pole (2) and the inner chamber threaded connection of joint piece (20), the surface from the top down of velocity of flow pole (2) is threaded connection respectively and is had first screw ring (21) and second screw ring (22), the bottom of first screw ring (21) is contradicted each other with the top of joint piece (20) to the top of second screw ring (22) is contradicted each other with the bottom of joint piece (20).
5. The layered velocimetry of claim 1, characterized in that: the bottom swing joint of horizontal bracket (1) has supporting shoe (23), the top fixed connection ejector pin (24) of supporting shoe (23), the top of ejector pin (24) runs through the bottom of horizontal bracket (1) and extends to the inner chamber of horizontal bracket (1), the surface of ejector pin (24) and the inner chamber sliding connection of horizontal bracket (1), ejector pin (24) surface threaded connection has horizontal ring (25) to the top of horizontal ring (25) and the bottom of horizontal bracket (1) are contradicted each other.
6. A layered velocimetry as claimed in claim 3, characterised in that: and a display screen (26) is fixedly connected to the surface of the display controller (16).
7. The layered velocimetry of claim 1, characterized in that: the inner cavities of the two sides of the horizontal frame (1) are provided with weight reduction grooves (27), and the two sides of the surface of the horizontal frame (1) are fixedly connected with gradienters (19).
8. The layered velocimetry of claim 1, characterized in that: the surface of the flow velocity rod (2) is provided with scale grains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127219.7A CN110824191B (en) | 2019-11-18 | 2019-11-18 | Layered velocity meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127219.7A CN110824191B (en) | 2019-11-18 | 2019-11-18 | Layered velocity meter |
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| CN110824191A CN110824191A (en) | 2020-02-21 |
| CN110824191B true CN110824191B (en) | 2020-12-01 |
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| CN201911127219.7A Expired - Fee Related CN110824191B (en) | 2019-11-18 | 2019-11-18 | Layered velocity meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112730879B (en) * | 2020-12-08 | 2023-01-20 | 扬州大学 | Intelligent river flow velocity measuring device and method |
| CN113252934B (en) * | 2021-07-08 | 2021-10-12 | 山东省地质矿产勘查开发局第四地质大队(山东省第四地质矿产勘查院) | Offshore water flow velocity detector |
| CN114762776B (en) * | 2022-01-19 | 2024-03-22 | 山东华实电气股份有限公司 | Advection type grit chamber for sewage treatment and sewage treatment system |
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| JPS60233562A (en) * | 1984-05-04 | 1985-11-20 | Endo Koki Kk | Measuring system of flow velocity of river |
| JP2004132729A (en) * | 2002-10-08 | 2004-04-30 | Deicy Corp | Flow direction and flow speed meter |
| CN103257250B (en) * | 2012-02-20 | 2016-04-20 | 鲁娟娟 | There is the propeller type current meter of automatic tracing mean velocity in vertical |
| CN106544983B (en) * | 2017-01-10 | 2018-09-25 | 山东大学 | A kind of hydraulic model test water surface curve and flow rate measuring device and method |
| CN207133313U (en) * | 2017-09-12 | 2018-03-23 | 李光艺 | A kind of portable velocity of flow flow instrument |
| CN207557289U (en) * | 2017-12-01 | 2018-06-29 | 云南森雅环保科技有限公司 | A kind of smart electronics current meter |
| CN208398868U (en) * | 2018-07-12 | 2019-01-18 | 四川讯思电气自动化设备有限公司 | A kind of discharge of river monitoring system |
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2019
- 2019-11-18 CN CN201911127219.7A patent/CN110824191B/en not_active Expired - Fee Related
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| Flow Prediction of Boundary Shear Stress and Depth Average Velocity of a Compound Channel with Narrowing Floodplain;Naik B, et al;《IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF CIVIL ENGINEERING》;20181231;第42卷(第4期);第415-425页 * |
| 钻孔垂直流速仪应用情况简介;付玉源;《工程勘察》;19870331(第3(1987)期);第52-54页 * |
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