CN102175288A - Method and special device for online measurement of river or canal flow - Google Patents
Method and special device for online measurement of river or canal flow Download PDFInfo
- Publication number
- CN102175288A CN102175288A CN 201110057984 CN201110057984A CN102175288A CN 102175288 A CN102175288 A CN 102175288A CN 201110057984 CN201110057984 CN 201110057984 CN 201110057984 A CN201110057984 A CN 201110057984A CN 102175288 A CN102175288 A CN 102175288A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic sensors
- group
- flow
- ultrasonic
- sensor
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/002—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow wherein the flow is in an open channel
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/07—Integration to give total flow, e.g. using mechanically-operated integrating mechanism
- G01F15/075—Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means
- G01F15/0755—Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means involving digital counting
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a method and a special device for the online measurement of river or canal flow, belonging to the technical field of flow velocity and flow measurement of river or canal. The technical proposal is as bellows: a plurality of ultrasonic sensors are longitudinally arranged on both sides, and at a particular moment, a pair of the ultrasonic sensors appearing in pairs is controlled to operate simultaneously in order to perform flow velocity measurement on a flow layer to which the pair of the ultrasonic sensors is corresponding; and the flow velocity of flow layers at different depths can be measured by controlling different pairs of the ultrasonic sensors to operate in turns. According to the invention, instantaneous flow of the conveyance section of the entire canal is obtained by utilizing the groups of the ultrasonic sensors appearing in pairs, thus the real-time online monitoring for water level, flow velocity, flow and water quantity of a conveyance canal is implemented. By collecting water depth and flow velocity signals at different positions, the instantaneous flow of river or canal is calculated according to the formula and the accumulated flow is simultaneously calculated. Via a communication network, an upper computer can remotely collect various data, including water depth, flow velocity and flow, in order to realize the metering management of water.
Description
Affiliated technical field:
The present invention relates to the method and the isolated plant of a kind of on-line measurement river course or canal capacity, the profile scanning that belongs to river course or channel flow velocity is measured and the flow metering technical field.
Background technology:
At present, existing river course or canal capacity metering method adopt the flow velocity area-method more, and the mode of employing and equipment mainly contain following three kinds: 1. hand-held rotating plasma current meter, and by the hand-held rotating plasma current meter of people aboard ship, pointwise is carried out hand dipping by different depth; 2. hoist cable formula current meter, in the river course or the channel two ends hoist cable is set, hang current meter on the hoist cable, traction, driving, catanator are set on the coast, measure by different depth by the current meter pointwise that the people controls on the hoist cable; 3. V-ADCP Doppler profile current meter, sensor are installed in the hull below that swims on the water surface usually, launch ultrasound wave in water body, manually drag hull across river surface by the bank, can realize gathering high-quality flow velocity, water level, data on flows.Above-mentioned these three kinds of modes all can not be left people's operation on the spot at the scene, can't realize long-term online automatic detection flow velocity; V-ADCP Doppler profile current meter not only costs an arm and a leg, and general 300,000 yuans, and the influence of tested water silt content, can not be used for irrigated area, most of the Yellow River.In addition, the open-air long-term flow that detects automatically must Attended mode, but waste of manpower, material resources are difficult to realize; If unmanned, reliability, power supply, antitheft problem are puzzlement those skilled in the art's a difficult problem all the time.
Summary of the invention:
The object of the invention provides the method and the isolated plant of a kind of on-line measurement river course or canal capacity, realizes the open-air long-term flow that detects automatically, and it is on duty to need not personnel, practical antitheft, solves the problems referred to above that exist in the background technology.
Technical scheme of the present invention is:
The method of a kind of on-line measurement river course or canal capacity comprises following steps:
1. in the river course or the channel two sides group of ultrasonic sensors of mutual coupling is set respectively, group of ultrasonic sensors is a plurality of ultrasonic sensors of vertically arranging, each ultrasonic sensor of group of ultrasonic sensors an all ultrasonic sensor with the opposite bank group of ultrasonic sensors is corresponding, occur in pairs, each is a fluid layer of river course or channel to the ultrasonic sensor correspondence;
2. a plurality of ultrasonic sensors of vertically arranging of two sides, a certain moment, by being controlled to certain a pair of ultrasonic sensor that occurs to be worked simultaneously, other is not worked to ultrasonic sensor, carries out this fluid-velocity survey to the corresponding fluid layer of ultrasonic sensor; By the different right ultrasonic sensor work of the control of taking turns, can measure the flow velocity of each fluid layer of different depth;
3. because the width of river course or channel is known, can record water level again, then can calculate river course or channel hydraulic pipeline sectional area, then can calculate instantaneous delivery and accumulated water volume according to water delivery cross section and institute's velocity measurement.
The a plurality of ultrasonic sensors that occur are distributed in the diverse location on the group of ultrasonic sensors in pairs, and the logarithm of its ultrasonic sensor is at least a pair of.
The different right ultrasonic sensor work of the above-mentioned control of taking turns, and numerical evaluation are all finished by computer control; Also measurement data can be uploaded to host computer by communication network further calculates, handles and analyze.
Because the channel width is known in advance, record water level again, then can calculate the channel hydraulic pipeline sectional area, then can calculate the water delivery flow according to water delivery cross section and institute's velocity measurement, wherein the water delivery flow can be calculated by two kinds of methods: 1. utilize each fluid layer velocimeter to calculate mean flow rate, utilize the water delivery cross section to calculate the water delivery flow again; 2. utilize each fluid layer velocimeter to calculate each fluid layer flow, each fluid layer flow is added up obtains the water delivery flow again.
The isolated plant of a kind of on-line measurement river course or canal capacity, comprise the group of ultrasonic sensors, level sensor, the control treatment module that are arranged on river course or channel two sides, group of ultrasonic sensors is a plurality of ultrasonic sensors of vertically arranging, the group of ultrasonic sensors that river course or channel two sides are provided with is respectively mated mutually, a ultrasonic sensor of a group of ultrasonic sensors all ultrasonic sensor with the opposite bank group of ultrasonic sensors is corresponding, occur in pairs, each is a fluid layer of river course or channel to the ultrasonic sensor correspondence; Group of ultrasonic sensors, level sensor are connected to control treatment module, and control treatment module takes turns to control different right ultrasonic sensor work, measure the flow velocity of each fluid layer of different depth.
The group of ultrasonic sensors of two sides is connected to control treatment module by wired or wireless mode.
Water level gauge is measured the channel water level, because the channel width is known in advance, records water level again, then can calculate the channel hydraulic pipeline sectional area, then can calculate instantaneous delivery and accumulated water volume according to water delivery cross section and institute's velocity measurement.Measurement data uploads to host computer by communication network and further calculates, handles and analyze.
Said ultrasonic sensor quantity is more than one, vertically is disposed in an evenly spaced relation on the sensor stand.
Said group of ultrasonic sensors is installed in the group of ultrasonic sensors pillar, and the group of ultrasonic sensors pillar is arranged on the two sides of river course or channel, and group of ultrasonic sensors can dismounting easily in the group of ultrasonic sensors pillar.
It is tubular that group of ultrasonic sensors is installed pillar, sidewall is provided with the strip window, and group of ultrasonic sensors is arranged on group of ultrasonic sensors and installs in the pillar, and ultrasonic sensor is positioned at the strip window place that group of ultrasonic sensors is installed pillar, expose ultrasonic sensor, be convenient to work.The strip window of group of ultrasonic sensors pillar, coupling has the door that protects that can be used for sealing.
When coupling had laser locating apparatus, laser locating apparatus to be used for the group of ultrasonic sensors Installation and Debugging on ultrasonic sensor, the position of ultrasonic sensor aligned indication.
Group of ultrasonic sensors is a multi-segment structure, and coupling constitutes an integral body mutually, and nethermost one section bottom is coniform, and is provided with level sensor, temperature sensor, mates connection mutually by stair-stepping structure between two sections.
Measuring method of the present invention and device, it is on duty to need not personnel, need not personnel's execute-in-place, finishes flow measurement, data transfer task automatically.Among the present invention, water level gauge is a known technology.
The invention has the beneficial effects as follows: utilize the group of ultrasonic sensors that occurs in pairs, ultrasonic sensor on the group of ultrasonic sensors also occurs in pairs, the a plurality of ultrasonic sensors that occur are distributed in the diverse location on the group of ultrasonic sensors in pairs, pursue the scanning of taking turns by a plurality of ultrasonic sensors paired appearance, obtain the flow of each fluid layer, the flow of each fluid layer that adds up obtains the instantaneous delivery in this water delivery cross section of whole channel.Instantaneous delivery can calculate or upload in real time, thereby realizes the real time on-line monitoring to canal for water conveyance water level, flow velocity, flow, the water yield.The assembly of making in factory of the present invention can be installed easily at the use scene,, be calculated the instantaneous delivery of rivers and canals and calculate integrated flow simultaneously according to formula by gathering the flow velocity signal of the depth of water and diverse location.By communication network, but the various data of the host computer remote collection depth of water, flow velocity, flow are to realize the water consumption measurement management.
Description of drawings:
Accompanying drawing 2 is that embodiment of the invention group of ultrasonic sensors is installed the pillar synoptic diagram;
Accompanying drawing 3 is embodiment of the invention group of ultrasonic sensors synoptic diagram;
Among the figure: group of ultrasonic sensors 1, ultrasonic sensor 2, group of ultrasonic sensors is installed pillar 3, laser locating apparatus 4, line channel 5, level sensor 6.
Embodiment:
Below in conjunction with accompanying drawing, the invention will be further described by embodiment.
With reference to accompanying drawing 1, in an embodiment, the isolated plant of a kind of on-line measurement river course or canal capacity, comprise the group of ultrasonic sensors 1 that is arranged on river course or channel two sides, level sensor 6, control treatment module, group of ultrasonic sensors is a plurality of ultrasonic sensors 2 of vertically arranging, the group of ultrasonic sensors that river course or channel two sides are provided with is respectively mated mutually, a ultrasonic sensor of a group of ultrasonic sensors all ultrasonic sensor with the opposite bank group of ultrasonic sensors is corresponding, occur in pairs, each is a fluid layer of river course or channel to the ultrasonic sensor correspondence; Group of ultrasonic sensors, level sensor are connected to control treatment module, and control treatment module takes turns to control different right ultrasonic sensor work, measure the flow velocity of each fluid layer of different depth.
The group of ultrasonic sensors of two sides is connected to control treatment module by wired or wireless mode.On group of ultrasonic sensors, be provided with line channel 5, be convenient to operation circuit, measuring circuit is passed through.
The water level instrumentation is measured the channel water level, because the channel width is known in advance, records water level again, then can calculate the channel hydraulic pipeline sectional area, then can calculate instantaneous delivery and accumulated water volume according to water delivery cross section and institute's velocity measurement.Measurement data uploads to host computer by communication network and further calculates, handles and analyze.
With reference to accompanying drawing 2, the present invention also is provided with group of ultrasonic sensors pillar 3 is installed, it is tubular that group of ultrasonic sensors is installed pillar, sidewall is provided with the strip window, group of ultrasonic sensors is arranged on group of ultrasonic sensors and installs in the pillar, ultrasonic sensor is positioned at the strip window place that group of ultrasonic sensors is installed pillar, exposes ultrasonic sensor, is convenient to work.The strip window of group of ultrasonic sensors pillar, coupling has the door that protects that can be used for sealing.
With reference to accompanying drawing 3, group of ultrasonic sensors is a multi-segment structure, and coupling constitutes an integral body mutually, and nethermost one section bottom is coniform, and is provided with level sensor 6, temperature sensor, mates connection mutually by stair-stepping structure between two sections.
With reference to accompanying drawing 4, coupling has laser locating apparatus 4 on ultrasonic sensor, and when laser locating apparatus 4 was used for the group of ultrasonic sensors Installation and Debugging, the position of ultrasonic sensor aligned indication.
Adopt measuring method of the present invention, it is on duty to realize need not personnel, need not personnel's execute-in-place, finishes flow measurement, data transfer task automatically.
Adopt apparatus of the present invention: utilize the group of ultrasonic sensors that occurs in pairs, ultrasonic sensor on the group of ultrasonic sensors also occurs in pairs, the a plurality of ultrasonic sensors that occur are distributed in the diverse location on the group of ultrasonic sensors in pairs, pursue the scan control of taking turns by a plurality of ultrasonic sensors paired appearance, obtain the flow of each fluid layer, the flow of each fluid layer that adds up obtains the instantaneous delivery in this water delivery cross section of whole channel.Instantaneous delivery can calculate or upload in real time, thereby realizes the real time on-line monitoring to canal for water conveyance water level, flow velocity, flow, the water yield.
Claims (10)
1. the method for on-line measurement river course or canal capacity is characterized in that comprising following steps:
1. in the river course or the channel two sides group of ultrasonic sensors of mutual coupling is set respectively, group of ultrasonic sensors is a plurality of ultrasonic sensors of vertically arranging, a ultrasonic sensor of a group of ultrasonic sensors all ultrasonic sensor with the opposite bank group of ultrasonic sensors is corresponding, occur in pairs, each is a fluid layer of river course or channel to the ultrasonic sensor correspondence;
2. a plurality of ultrasonic sensors of vertically arranging of two sides, a certain moment, by being controlled to certain a pair of ultrasonic sensor that occurs to be worked simultaneously, other is not worked to ultrasonic sensor, carries out this fluid-velocity survey to the corresponding fluid layer of ultrasonic sensor; By the different right ultrasonic sensor work of the control of taking turns, can measure the flow velocity of each fluid layer of different depth;
3. because the width of river course or channel is known, can record water level again, then can calculate river course or channel hydraulic pipeline sectional area, then can calculate instantaneous delivery and accumulated water volume according to water delivery cross section and institute's velocity measurement.
2. according to the described on-line measurement river course of claim 1 or the method for canal capacity, it is characterized in that a plurality of ultrasonic sensors that occur in pairs are distributed in the diverse location on the group of ultrasonic sensors, the logarithm of its ultrasonic sensor is at least a pair of.
3. according to claim 1 or the 2 described on-line measurement river courses or the method for canal capacity, it is characterized in that because the channel width is known in advance, record water level again, then can calculate the channel hydraulic pipeline sectional area, then can calculate the water delivery flow according to water delivery cross section and institute's velocity measurement, wherein the water delivery flow can be calculated by two kinds of methods: 1. utilize each fluid layer velocimeter to calculate mean flow rate, utilize the water delivery cross section to calculate the water delivery flow again, 2. utilize each fluid layer velocimeter to calculate each fluid layer flow, each fluid layer flow is added up obtains the water delivery flow again.
4. the isolated plant of on-line measurement river course or canal capacity, it is characterized in that comprising the group of ultrasonic sensors (1) that is arranged on river course or channel two sides, level sensor (6), control treatment module, group of ultrasonic sensors is a plurality of ultrasonic sensors (2) of vertically arranging, the group of ultrasonic sensors that river course or channel two sides are provided with is respectively mated mutually, a ultrasonic sensor of a group of ultrasonic sensors all ultrasonic sensor with the opposite bank group of ultrasonic sensors is corresponding, occur in pairs, each is a fluid layer of river course or channel to the ultrasonic sensor correspondence; Group of ultrasonic sensors, level sensor are connected to control treatment module, and control treatment module takes turns to control different right ultrasonic sensor work, measure the flow velocity of each fluid layer of different depth.
5. according to the described on-line measurement river course of claim 4 or the isolated plant of canal capacity, it is characterized in that said group of ultrasonic sensors comprises the sensor stand that multistage segmentation connects, sensor stand quantity at least one.
6. according to claim 4 or the 5 described on-line measurement river courses or the isolated plant of canal capacity, it is characterized in that said group of ultrasonic sensors is installed in the group of ultrasonic sensors pillar (3), the group of ultrasonic sensors pillar is arranged on the two sides of river course or channel, and group of ultrasonic sensors can dismounting easily in the group of ultrasonic sensors pillar.
7. according to the described on-line measurement river course of claim 6 or the isolated plant of canal capacity, it is characterized in that it is tubular that group of ultrasonic sensors is installed pillar, sidewall is provided with the strip window, group of ultrasonic sensors is arranged on group of ultrasonic sensors and installs in the pillar, ultrasonic sensor is positioned at the strip window place that group of ultrasonic sensors is installed pillar, expose ultrasonic sensor, be convenient to work.
8. according to the described on-line measurement river course of claim 7 or the isolated plant of canal capacity, it is characterized in that the strip window of group of ultrasonic sensors pillar, coupling has the door that protects that can be used for sealing.
9. according to claim 4 or the 5 described on-line measurement river courses or the isolated plant of canal capacity, it is characterized in that coupling has laser locating apparatus (4) on the group of ultrasonic sensors, when laser locating apparatus was used for the group of ultrasonic sensors Installation and Debugging, the position of ultrasonic sensor aligned indication.
10. according to claim 4 or the 5 described on-line measurement river courses or the isolated plant of canal capacity, it is characterized in that group of ultrasonic sensors is a multi-segment structure, coupling constitutes an integral body mutually, nethermost one section bottom is coniform, and be provided with level sensor, temperature sensor, mate connection mutually by stair-stepping structure between two sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110057984 CN102175288A (en) | 2011-03-11 | 2011-03-11 | Method and special device for online measurement of river or canal flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110057984 CN102175288A (en) | 2011-03-11 | 2011-03-11 | Method and special device for online measurement of river or canal flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102175288A true CN102175288A (en) | 2011-09-07 |
Family
ID=44518498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110057984 Pending CN102175288A (en) | 2011-03-11 | 2011-03-11 | Method and special device for online measurement of river or canal flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102175288A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535125A (en) * | 2015-01-26 | 2015-04-22 | 中国农业大学 | Stream flow monitoring device and stream flow computing method |
| CN104535119A (en) * | 2014-12-29 | 2015-04-22 | 太原理工大学 | Automatic open channel flow measuring method |
| CN105372447A (en) * | 2015-11-04 | 2016-03-02 | 厦门博意达科技有限公司 | Micro-probe ultrasonic wave doppler current meter |
| CN105547385A (en) * | 2015-12-18 | 2016-05-04 | 合肥市恒昌自动化控制有限责任公司 | Channel section flow measurement method based on ultrasonic principle |
| CN105806434A (en) * | 2016-04-27 | 2016-07-27 | 山东善思明科技发展有限公司 | System for measuring flow of open channel |
| CN106643959A (en) * | 2016-12-23 | 2017-05-10 | 黄河水利委员会黄河水利科学研究院 | Method for calculating fluid storage capacity using multiple-sensor |
| CN107727179A (en) * | 2017-11-15 | 2018-02-23 | 北京华宇天威科技有限公司 | A kind of urban discharging pipeline flow monitoring device |
| CN108572016A (en) * | 2018-05-24 | 2018-09-25 | 北京中农精准科技有限公司 | A kind of time service optoacoustic open channel flow rate meter systems |
| CN108775936A (en) * | 2018-03-23 | 2018-11-09 | 中国航天系统科学与工程研究院 | A kind of flow measurement device, metering method and measurement and control integration gate system |
| CN108801402A (en) * | 2018-05-04 | 2018-11-13 | 北京城市排水集团有限责任公司 | Contact sewer water level flow rate on-line detecting system and its detection method |
| CN110672163A (en) * | 2019-08-21 | 2020-01-10 | 中国水利水电科学研究院 | Method for testing ice period flow of canal in cold region |
| CN111623839A (en) * | 2020-07-17 | 2020-09-04 | 唐山现代工控技术有限公司 | Channel ultrasonic time difference method sensor structure and installation method |
| CN112729420A (en) * | 2020-12-29 | 2021-04-30 | 安徽省锐凌计量器制造有限公司 | Non-full pipe flowmeter and installation and use method thereof |
| CN113959503A (en) * | 2021-09-17 | 2022-01-21 | 江苏禹治流域管理技术研究院有限公司 | Irrigated area water supply measurement data acquisition and management system |
| CN115388344A (en) * | 2022-10-31 | 2022-11-25 | 广东海洋大学 | Pipeline leakage monitoring method based on distributed coordination detection |
| CN118089863A (en) * | 2024-04-19 | 2024-05-28 | 河北大沃农业科技有限公司 | Method, device, open channel flowmeter and storage medium for measuring open channel flow |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852629A (en) * | 2010-07-14 | 2010-10-06 | 唐山汇中威顿仪表有限公司 | Ultrasonic flow sensor array for channels or river channels and arrangement method thereof |
-
2011
- 2011-03-11 CN CN 201110057984 patent/CN102175288A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852629A (en) * | 2010-07-14 | 2010-10-06 | 唐山汇中威顿仪表有限公司 | Ultrasonic flow sensor array for channels or river channels and arrangement method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《山东农业大学学报(自然科学版)》 20080615 杨红玲等 超声波法与流速仪法在明渠测流中的比较研究 , 第02期 * |
| 《武汉水利电力大学学报》 雷艳等 梯形渠道多声道超声波测流数学模型及计算方法 , 第01期 * |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535119A (en) * | 2014-12-29 | 2015-04-22 | 太原理工大学 | Automatic open channel flow measuring method |
| CN104535125A (en) * | 2015-01-26 | 2015-04-22 | 中国农业大学 | Stream flow monitoring device and stream flow computing method |
| CN105372447A (en) * | 2015-11-04 | 2016-03-02 | 厦门博意达科技有限公司 | Micro-probe ultrasonic wave doppler current meter |
| CN105547385A (en) * | 2015-12-18 | 2016-05-04 | 合肥市恒昌自动化控制有限责任公司 | Channel section flow measurement method based on ultrasonic principle |
| CN105806434A (en) * | 2016-04-27 | 2016-07-27 | 山东善思明科技发展有限公司 | System for measuring flow of open channel |
| CN106643959A (en) * | 2016-12-23 | 2017-05-10 | 黄河水利委员会黄河水利科学研究院 | Method for calculating fluid storage capacity using multiple-sensor |
| CN107727179A (en) * | 2017-11-15 | 2018-02-23 | 北京华宇天威科技有限公司 | A kind of urban discharging pipeline flow monitoring device |
| CN107727179B (en) * | 2017-11-15 | 2024-05-28 | 北京华宇天威科技有限公司 | Urban drainage pipeline flow monitoring device |
| CN108775936A (en) * | 2018-03-23 | 2018-11-09 | 中国航天系统科学与工程研究院 | A kind of flow measurement device, metering method and measurement and control integration gate system |
| CN108801402B (en) * | 2018-05-04 | 2023-11-10 | 北京城市排水集团有限责任公司 | Online detection system and detection method for water level, flow rate and flow rate of contact type drainage pipe channel |
| CN108801402A (en) * | 2018-05-04 | 2018-11-13 | 北京城市排水集团有限责任公司 | Contact sewer water level flow rate on-line detecting system and its detection method |
| CN108572016A (en) * | 2018-05-24 | 2018-09-25 | 北京中农精准科技有限公司 | A kind of time service optoacoustic open channel flow rate meter systems |
| CN110672163A (en) * | 2019-08-21 | 2020-01-10 | 中国水利水电科学研究院 | Method for testing ice period flow of canal in cold region |
| CN111623839A (en) * | 2020-07-17 | 2020-09-04 | 唐山现代工控技术有限公司 | Channel ultrasonic time difference method sensor structure and installation method |
| CN112729420B (en) * | 2020-12-29 | 2022-06-07 | 安徽省锐凌计量器制造有限公司 | Non-full pipe flowmeter and installation and use method thereof |
| CN112729420A (en) * | 2020-12-29 | 2021-04-30 | 安徽省锐凌计量器制造有限公司 | Non-full pipe flowmeter and installation and use method thereof |
| CN113959503A (en) * | 2021-09-17 | 2022-01-21 | 江苏禹治流域管理技术研究院有限公司 | Irrigated area water supply measurement data acquisition and management system |
| CN115388344A (en) * | 2022-10-31 | 2022-11-25 | 广东海洋大学 | Pipeline leakage monitoring method based on distributed coordination detection |
| CN115388344B (en) * | 2022-10-31 | 2023-01-17 | 广东海洋大学 | Pipeline leakage monitoring method based on distributed coordination detection |
| CN118089863A (en) * | 2024-04-19 | 2024-05-28 | 河北大沃农业科技有限公司 | Method, device, open channel flowmeter and storage medium for measuring open channel flow |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102175288A (en) | Method and special device for online measurement of river or canal flow | |
| CN203066091U (en) | Monitoring system of foundation pit dewatering and pumping test | |
| CN101968370B (en) | Method for remotely measuring river flow or channel flow on line and special tracking flow rate measurement device | |
| CN205843757U (en) | A kind of water level water-depth measurement device | |
| CN205154146U (en) | Well kick lost circulation monitoring devices | |
| US10364816B2 (en) | Remote pump managing device | |
| CN102288219B (en) | Slurry-grouting pressure and flow velocity real-time monitoring and recording instrument | |
| CN106609661A (en) | A drilling fluid flow detection device and method | |
| CN105887942A (en) | Automatic and intelligent foundation pit inclinometry method | |
| CN104453842B (en) | Oil gas well down-hole fault diagnosis system and method | |
| CN105422062A (en) | Bridge type concentric integrated seal-testing single-layer direct-measurement adjusting instrument | |
| CN202049173U (en) | Ultrasonic wave sensor group | |
| CN105628109A (en) | River flow speed auto-measuring method and device | |
| CN106325177A (en) | Embedded monitor for constant compensation of lysimeter underground water | |
| CN205580557U (en) | Automatic pumping test device of well | |
| CN104422428A (en) | Device and method for detecting marine hydrological parameter jump layer characteristics by using AUV (Autonomous Underwater Vehicle) | |
| CN206681723U (en) | A kind of microwave specific retention combination logging instrument for output section | |
| CN110631654B (en) | Depth measurement method based on underground water | |
| CN108549311A (en) | Workover treatment automatic data collection analysis system and control method | |
| CN108692773B (en) | Tentacle type sensing flow meter based on artificial intelligence technology and flow measuring method thereof | |
| CN208672667U (en) | A kind of distribution acoustics doppler flow amount monitoring device | |
| CN110455259A (en) | A kind of Geography monitor device and the river Form Development based on the device monitor system | |
| CN103512560A (en) | Multifunctional river hydrology automatic measurement system and riverbed elevation measurement method | |
| CN202158925U (en) | Grouting pressure and flow velocity real-time monitoring recorder | |
| CN108961720B (en) | A kind of water flow collection device based on LoRa technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110907 |