CN108196086B - Measuring device for measuring surface flow velocity of water body by using probe of inverted Doppler current meter and using method of measuring device - Google Patents
Measuring device for measuring surface flow velocity of water body by using probe of inverted Doppler current meter and using method of measuring device Download PDFInfo
- Publication number
- CN108196086B CN108196086B CN201711375912.7A CN201711375912A CN108196086B CN 108196086 B CN108196086 B CN 108196086B CN 201711375912 A CN201711375912 A CN 201711375912A CN 108196086 B CN108196086 B CN 108196086B
- Authority
- CN
- China
- Prior art keywords
- current meter
- doppler current
- probe
- base
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Measuring Volume Flow (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The invention discloses a measuring device for measuring the surface flow velocity of a water body by an inverted Doppler current meter probe, which comprises a base arranged above sediment in water, wherein the base is connected with the Doppler current meter probe, a sensor of the Doppler current meter probe is upwards arranged, the base is connected with a plurality of connecting rods, the base is connected with a plurality of supporting legs, a storage battery and a computer are arranged above the surface of the water body, the storage battery is connected with the Doppler current meter probe through a power line, the computer is connected with the Doppler current meter probe through a data line, and the power line and the data line are arranged in a cable. The invention also discloses a method for measuring the surface flow velocity of the water body by the probe of the inverted Doppler current meter. The measuring device and the method for measuring the surface flow velocity of the water body by the inverted Doppler current meter probe overcome the defect that the surface flow velocity distribution cannot be obtained by the conventional flow velocity measuring method.
Description
Technical Field
The invention relates to a device and a method for measuring the surface flow velocity of a water body by an inverted Doppler current meter probe, belonging to the fields of hydrology and environmental science.
Background
In the field of hydraulics, shallow lakes are affected by wind to form wind-induced flow, and the flow field of a water body is very complex. The wind current flow velocity of the water body has the phenomenon that the flow velocity is different at different water depths. In lakes, reservoirs and other water bodies, the accumulation of floating organisms and substances, such as cyanobacterial bloom, water hyacinth accumulation and even sea enteromorpha accumulation, is usually caused by the flow of surface water and is mostly related to the flow of the surface water.
Most of the current commonly used flow rate measuring instruments can not measure the flow of a water layer within 10cm of the surface layer on site. Commonly used flow rate measuring instruments include Particle Imaging Velocimetry (PIV), radio wave velocimetry (emv), doppler velocimetry (ADCP), and the like. The particle imaging velocimeter is characterized in that tracing particles with high flow following performance are placed in a measured fluid, a laser drives a single polarized light from one side of the device, a high-speed camera (CCD) is used for tracking the motion track of the particles on the other side perpendicular to the laser, the track of the particles moving in 100 mu s is shot, and the two-dimensional motion speed of water particles is obtained through calculation, and the particle imaging velocimeter is not suitable for being used in the field. The electric wave current meter obtains the flow velocity by changing the frequency of the transmitted and received electromagnetic waves by using the Doppler effect principle, and is suitable for being used in the field, but is difficult to obtain the three-dimensional flow velocity distribution. The Doppler current meter probe can acquire three-dimensional and more detailed data compared with other instruments, is suitable for field tests, and obtains flow velocity distribution by transmitting sound wave short pulses with fixed frequency into water, enabling the pulses to collide with scatterers in the water to be scattered, then receiving echo signals and integrating ship speed. However, since the conventional method for measuring the flow velocity by using the probe of the doppler current meter is to place the probe of the doppler current meter on a sampling boat to measure the flow velocity, the probe sensor of the doppler current meter is submerged in water by about 7cm, and the probe sensor of the doppler current meter cannot obtain the flow velocity distribution of a water layer which is 20cm below the probe, the flow velocity cannot be monitored by a blind zone of about 27cm on the surface layer. Therefore, how to overcome the defects so that the Doppler current meter probe can measure the surface flow velocity of the water body is a problem worthy of study.
Disclosure of Invention
The invention aims to provide a measuring device and a measuring method for measuring the surface flow velocity of a water body by using an inverted Doppler current meter probe, which are suitable for measuring the surface flow velocity of the water body and can obtain three-dimensional flow velocity distribution, aiming at the defects in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a measurement device of inversion Doppler current meter probe measurement water surface velocity of flow which characterized in that: including setting up the base in aquatic bed mud top, even there is the Doppler current meter probe on the base, the sensor of Doppler current meter probe upwards sets up, even have a plurality of connecting rods on the base, even have a plurality of landing legs on the base, water surface top is provided with battery and computer, the battery passes through the power cord and links to each other with the Doppler current meter probe, the computer pass through the data line with Doppler current meter probe connection, power cord and data line set up in the cable.
The base is a triangular base.
The number of connecting rods is 3, the connecting rod can be dismantled through the screw thread and connect on the base.
The number of the supporting legs is 3, and the supporting legs are detachably connected with the base.
The surface of the connecting rod is marked with scales along the vertical direction.
The connecting rod is formed by connecting a plurality of connecting rod monomers end to end.
Safety ropes are bound on the supporting legs.
A method for measuring the surface flow velocity of a water body by an inverted Doppler current meter probe comprises the following steps:
s01, fixing the supporting legs on a base, installing a Doppler current meter probe on the base, screwing a connecting rod on the base, connecting the Doppler current meter probe with a storage battery through a transmission cable, connecting the Doppler current meter probe with a computer through the transmission cable, and fastening one end of a safety rope on the supporting legs and one end on the water surface;
s02, the connecting rod is held by hands, the device is vertically inserted into water downwards, the supporting legs are inserted into bottom mud, the scales on the connecting rod are read according to the distance between the probe of the Doppler current meter and the water surface, the distance meets the measurement requirement, and then the connecting rod is unscrewed to be separated from the base;
s03, starting the computer, the Doppler current meter probe and the Doppler current meter probe operation software to measure the flow rate;
s04, closing the instrument after the flow rate measurement is finished, taking back the measuring device by using the protective rope tied on the supporting leg, detaching the measuring device, and cleaning and wiping the measuring device; thereafter, all components of the measuring device are boxed for the next flow rate measurement.
The invention has the beneficial effects that: the invention changes the creation method of arranging the probe of the current meter on the sampling ship to measure the current, innovatively and organically assembles the metal fittings and the probe of the Doppler current meter into the measuring device capable of measuring the surface current of the water body, and meets the requirement of measuring the surface current of the water body. Firstly, the test device of the invention makes up the defect that the conventional flow velocity measurement method can not obtain the surface flow velocity distribution, and can record the surface flow field without omission. And metal accessories such as the connecting rod, the supporting leg, the triangular base and the like are small and exquisite and are convenient to carry, can be used along with the installation, and are suitable for field work.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a measuring device for measuring the surface flow velocity of a water body by using an inverted Doppler current meter probe according to the present invention;
FIG. 2 shows the results of measuring the flow velocities at the surface of the water body and at other depths in accordance with the present invention.
Description of reference numerals: 1-doppler velocimeter probe; 2-a base; 3-a connecting rod; 4-a support leg; 5-a cable; 6-a storage battery; 7-a computer; 8-protective rope.
Detailed Description
The present invention is further described with reference to the accompanying drawings, and the following examples are only for clearly illustrating the technical solutions of the present invention, and should not be taken as limiting the scope of the present invention.
As shown in fig. 1, a measuring device for measuring the surface flow velocity of a water body by using an inverted doppler current meter probe comprises an inverted doppler current meter probe 1 and a matched device thereof. The Doppler current meter probe 1 is an instrument for transmitting sound wave short pulses with fixed frequency into water, is inverted in the process of measuring the flow rate, a sensor faces upwards to the direction of the water surface, the Doppler current meter probe is FlowQuest 2000 produced by LinkQuest company of California, USA, and the selected measurement interval is the minimum measurement interval (13 cm).
The matched device comprises a base 2, a connecting rod 3, a supporting leg 4, a cable 5, a storage battery 6, a computer 7 and a protective rope 8. The base 2 serves as a support and is used for fixing the Doppler current meter probe 1, and particularly is a triangular base. Base 2 is located aquatic sediment top, and Doppler current meter probe 1 sets up on base 2, and triangle department on the base 2 even has three connecting rods 3, and connecting rod 3 is as bathymetric survey and towed device for the record depth of water makes operating personnel can control the direction of sinking of Doppler current meter probe 1. Connecting rod 3 is formed by many connecting rod monomers end to end, and connecting rod 3 passes through threaded connection on base 2, and convenient the dismantlement, 3 surfaces of connecting rod mark along vertical the scale.
Three supporting legs 4 are detachably connected to three corners under the base 2. The length of the supporting leg 4 is 20-30 cm, and is required to be larger than the minimum measurement interval (13 cm); when settling measuring device the required distance of doppler current meter probe 1 and surface of water is for measuring interval integral multiple + surface water layer thickness (about 1 cm), according to the position of scale control doppler current meter probe 1 apart from the surface of water on connecting rod 3, if apart from the undersize, then continue to insert the connecting rod downwards, if apart from too big, then the connecting rod of rebound for the dive degree of depth of doppler current meter probe 1 equals with the required distance of measuring the surface velocity of water, and the top of three connecting rods 3 of adjustment is in same horizontal plane.
A storage battery 6 and a computer 7 are arranged above the surface of the water body, the storage battery 6 is connected with the Doppler current meter probe 1 through a power line to provide electric energy for the Doppler current meter probe 1, the computer 7 is connected with the Doppler current meter probe 1 through a data line, the computer 7 is used for sending an operation command to the Doppler current meter probe 1, receiving the measurement data of the Doppler current meter probe 1 and carrying out corresponding processing and analysis on the measurement data, and the power line and the data line are arranged in a cable 5. Safety ropes 8 are bound on the supporting legs 4, so that the measuring device can take back conveniently.
The working method of the invention comprises the following steps:
firstly, fixing a supporting leg 4 on a base 2, installing a Doppler current meter probe 1 on the base 2, screwing a connecting rod 3 on the base 2, connecting the Doppler current meter probe 1 with a storage battery 6 through a transmission cable, connecting the Doppler current meter probe 1 with a computer 7 through the transmission cable, and fastening one end of a safety rope 8 on the supporting leg 4 and one end on the water surface.
The second step, handheld connecting rod 3 inserts the aquatic with the device is vertical downwards for landing leg 4 inserts the bed mud, carries out the reading according to the required distance of Doppler current meter probe 1 and the surface of water to the scale on connecting rod 3, makes this distance satisfy the measurement requirement, later breaks away from base 2 with connecting rod 3 unscrewing.
And thirdly, starting the computer 7, the Doppler current meter probe 1 and Doppler current meter probe operation software to measure the flow rate.
Fourthly, after the flow velocity measurement is finished, closing the instrument, taking back the measuring device by using the protective rope 8 tied on the supporting leg 4, disassembling the measuring device, and cleaning and wiping the measuring device; thereafter, all components of the measuring device are boxed for the next flow rate measurement.
The invention is used for actual measurement, and the flow velocity meter is arranged at the north bank of Taihu tribute lake bay to measure a real-time wind field and a monitoring flow field, wherein the measurement range is 1cm to 144cm below the water surface, and the measurement interval is 13 cm. The results are shown in FIG. 2. As can be seen from FIG. 2, the present invention can measure the flow velocity information of 1cm or more under water.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (7)
1. The utility model provides a measurement device of inversion Doppler current meter probe measurement water surface velocity of flow which characterized in that: comprises a base (2) arranged above sediment in water, a Doppler current meter probe (1) is connected on the base (2), the sensor of the Doppler current meter probe (1) is arranged upwards, the base (2) is connected with a plurality of connecting rods (3), scales are marked on the surface of the connecting rod (3) along the vertical direction, the distance between the probe (1) of the Doppler current meter and the water surface is integral multiple of the measurement interval of the Doppler current meter, the base (2) is connected with a plurality of supporting legs (4), a storage battery (6) and a computer (7) are arranged above the surface of the water body, the storage battery (6) is connected with the Doppler current meter probe (1) through a power line, the computer (7) is connected with the Doppler current meter probe (1) through a data line, and the power line and the data line are arranged in the cable (5).
2. The apparatus for measuring the surface velocity of a body of water with an inverted doppler velocimeter probe according to claim 1, wherein: the base (2) is a triangular base.
3. The apparatus for measuring the surface velocity of a water body by an inverted Doppler current velocity meter probe according to claim 2, wherein: the number of the connecting rods (3) is 3, and the connecting rods (3) are detachably connected to the base (2) through threads.
4. The apparatus for measuring the surface velocity of a water body by an inverted Doppler current velocity meter probe according to claim 2, wherein: the number of the supporting legs (4) is 3, and the supporting legs (4) are detachably connected with the base (2).
5. The apparatus for measuring the surface velocity of a body of water with an inverted doppler velocimeter probe according to claim 1, wherein: the connecting rod (3) is formed by connecting a plurality of connecting rod monomers end to end.
6. The apparatus for measuring the surface velocity of a body of water with an inverted doppler velocimeter probe according to claim 1, wherein: safety ropes (8) are bound on the supporting legs (4).
7. A method for measuring the surface flow velocity of a water body by an inverted Doppler current meter probe is characterized by comprising the following steps: the method comprises the following steps:
s01, fixing a supporting leg (4) on a base (2), installing a Doppler current meter probe (1) on the base (2), screwing a connecting rod (3) on the base (2), connecting the Doppler current meter probe (1) with a storage battery (6) through a transmission cable, connecting the Doppler current meter probe (1) with a computer (7) through the transmission cable, and tying one end of a safety rope (8) on the supporting leg (4) and one end on the water surface;
s02, the connecting rod (3) is held by hand, the device is vertically inserted into water downwards, the supporting legs (4) are inserted into sediment, the scales on the connecting rod (3) are read according to the distance between the probe (1) of the Doppler current meter and the water surface, the distance meets the requirement that the distance between the probe (1) of the Doppler current meter and the water surface is integral multiple of the measurement interval of the Doppler current meter, and then the connecting rod (3) is unscrewed to be separated from the base (2);
s03, starting the computer (7), the Doppler current meter probe (1) and the Doppler current meter probe operation software to measure the flow rate;
s04, closing the instrument after the flow rate measurement is finished, taking back the measuring device by using the protective rope (8) tied on the supporting leg (4), disassembling the measuring device, and cleaning and wiping the measuring device; thereafter, all components of the measuring device are boxed for the next flow rate measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711375912.7A CN108196086B (en) | 2017-12-19 | 2017-12-19 | Measuring device for measuring surface flow velocity of water body by using probe of inverted Doppler current meter and using method of measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711375912.7A CN108196086B (en) | 2017-12-19 | 2017-12-19 | Measuring device for measuring surface flow velocity of water body by using probe of inverted Doppler current meter and using method of measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108196086A CN108196086A (en) | 2018-06-22 |
| CN108196086B true CN108196086B (en) | 2020-05-22 |
Family
ID=62576933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711375912.7A Active CN108196086B (en) | 2017-12-19 | 2017-12-19 | Measuring device for measuring surface flow velocity of water body by using probe of inverted Doppler current meter and using method of measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108196086B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044746A (en) * | 2018-10-11 | 2020-04-21 | 上海宏昇仪器仪表技术有限公司 | Be applied to survey pole equipment of open-air current surveying of portable doppler current meter |
| CN109253765A (en) * | 2018-10-24 | 2019-01-22 | 宁波市海洋环境监测中心 | River discharge monitors measuring system and method for calculating flux on-line |
| CN112230016A (en) * | 2020-10-19 | 2021-01-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Be used for acoustics Doppler point type current meter auxiliary device that flows |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000111375A (en) * | 1998-10-06 | 2000-04-18 | Kansai Electric Power Co Inc:The | Devices for continuously observing flow rate, turbidity of water, and hydraulic information |
| CN102598934A (en) * | 2012-03-21 | 2012-07-25 | 云南大学 | Planting device and planting method for aquatic plants |
| CN204177386U (en) * | 2014-09-02 | 2015-02-25 | 上海河口海岸科学研究中心 | Husky and the full water depth flow speed of the nearly bed mud in sublittoral region region flows to observation device |
| CN204188185U (en) * | 2014-07-04 | 2015-03-04 | 中国计量科学研究院 | The tripod that a kind of inversion for connecting surveying instrument uses |
| CN206020444U (en) * | 2016-08-25 | 2017-03-15 | 广州拓泰环境监测技术有限公司 | A kind of bottom-sitting type acoustic Doppler fluid velocity profile instrument mounting bracket |
| CN206020443U (en) * | 2016-08-09 | 2017-03-15 | 广州拓泰环境监测技术有限公司 | A kind of acoustic Doppler fluid velocity profile instrument installing rack |
-
2017
- 2017-12-19 CN CN201711375912.7A patent/CN108196086B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000111375A (en) * | 1998-10-06 | 2000-04-18 | Kansai Electric Power Co Inc:The | Devices for continuously observing flow rate, turbidity of water, and hydraulic information |
| CN102598934A (en) * | 2012-03-21 | 2012-07-25 | 云南大学 | Planting device and planting method for aquatic plants |
| CN204188185U (en) * | 2014-07-04 | 2015-03-04 | 中国计量科学研究院 | The tripod that a kind of inversion for connecting surveying instrument uses |
| CN204177386U (en) * | 2014-09-02 | 2015-02-25 | 上海河口海岸科学研究中心 | Husky and the full water depth flow speed of the nearly bed mud in sublittoral region region flows to observation device |
| CN206020443U (en) * | 2016-08-09 | 2017-03-15 | 广州拓泰环境监测技术有限公司 | A kind of acoustic Doppler fluid velocity profile instrument installing rack |
| CN206020444U (en) * | 2016-08-25 | 2017-03-15 | 广州拓泰环境监测技术有限公司 | A kind of bottom-sitting type acoustic Doppler fluid velocity profile instrument mounting bracket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108196086A (en) | 2018-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Demer et al. | Calibration of acoustic instruments | |
| CN105954732B (en) | A kind of the sediment reflectivity extracting method and system of laser radar depth measurement data | |
| CN108196086B (en) | Measuring device for measuring surface flow velocity of water body by using probe of inverted Doppler current meter and using method of measuring device | |
| Bertuccioli et al. | A submersible particle image velocimetry system for turbulence measurements in the bottom boundary layer | |
| CN104034317A (en) | Detection method for reciprocating oceanic microstructural profiler | |
| Osborne et al. | Vertical and horizontal structure is suspended sand concentrations and wave-induced fluxes over bedforms | |
| Borthwick et al. | Flow kinematics of focused wave groups on a plane beach in the UK Coastal Research Facility | |
| CN108008397A (en) | For the device and its detection method being detected in muddy water to submerged structure | |
| Marchant et al. | A buoyant tethered sphere for marine current estimation | |
| Wang et al. | Reconstruction of 3-D surface waves generated by moving submerged sphere based on stereo imaging principle | |
| Liu et al. | Autonomous ocean turbulence measurements from a moored upwardly rising profiler based on a buoyancy-driven mechanism | |
| Sarabun | High-resolution thermistor chain observations in the upper Chesapeake Bay | |
| Pomeroy et al. | Integrating structure from motion, numerical modelling and field measurements to understand carbonate sediment transport in coral reef canopies | |
| Träsch et al. | Metocean conditions at the Ifremer in situ test site in Brest | |
| McCullough | Problems in measuring currents near the ocean surface | |
| CN207473088U (en) | A kind of device for being detected in muddy water to submerged structure | |
| LICHTMAN et al. | SEDIMENT FLUX VARIABILITY ON TIDAL FLATS: RESULTS FROM MORECAMBE BAY, UK | |
| Smith et al. | PIV measurements in the bottom boundary layer of the coastal ocean | |
| Frangoulis et al. | Testing a towed undulating vehicle in the Aegean Sea. | |
| Shearer | Marine sediment characterization through echo sounder measurement analysis | |
| Williams | Historical developments of current, wave, and turbulence measurements including those by MAVS | |
| Grue | Internal wave fields analyzed by imaging velocimetry | |
| Gargett et al. | Measuring turbulent large-eddy structures with an ADCP. Part 2. Horizontal velocity variance | |
| Minnick et al. | Large-scale wave kinematics measurements of regular waves and large-amplitude wave groups | |
| Li | The Application of Hydroacoustics on Ocean Observation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |