CN102829771A - Device for automatically measuring water depth flow velocity - Google Patents
Device for automatically measuring water depth flow velocity Download PDFInfo
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- CN102829771A CN102829771A CN2012103198903A CN201210319890A CN102829771A CN 102829771 A CN102829771 A CN 102829771A CN 2012103198903 A CN2012103198903 A CN 2012103198903A CN 201210319890 A CN201210319890 A CN 201210319890A CN 102829771 A CN102829771 A CN 102829771A
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Abstract
The invention relates to a device for automatically measuring the water depth flow velocity, which comprises a side rod, and is connected with a case in a sliding manner through a driving wheel, wherein a motor is arranged in the case, and the rotation of the driving wheel is controlled through a driving belt; the lower end of a measuring bar is fixed with a flow velocity sensor, the lower part of the flow velocity sensor is adhered with a bakelite plate, and the thickness of the bakelite plate is not larger than 2 millimeters; and two metal wires are fixed on the bakelite plate, the heights of the two metal wires are smaller than 4 millimeters, and the two metal wires are spaced for 10-20 millimeters. With the device, the automatic continuous measurement of the water depth flow velocity is realized for the first time, and the automation degree, measurement efficiency and location precision of the flow velocity measurement are obviously improved.
Description
Technical field
The invention belongs to river conservancy worker's field of measuring technique, relate to a kind of water depth flow speed self-operated measuring unit.
Background technology
In water conservancy project, river conservancy worker, harbour model test, need to measure the flow velocity of the different depth of waters usually.The position of measuring point changes with the difference of the depth of water, and counting of vertical line orientation measurement also can be different because of the difference of the depth of water.For example, when the depth of water is more shallow, adopt one point method, only need to measure the flow velocity at the 0.6 times of depth of water place this moment; When the depth of water is dark, need to adopt multipoint method,, promptly measure the flow velocity at 0.2,0.6 and 0.8 times of depth of water place, or adopt five-spot, be i.e. the flow velocity at surface measurements, 0.2,0.6,0.8 times of depth of water place and water-bed place as adopting three point method.
The location of the measurement of the depth of water and flow sensor is to be accomplished by manual work mostly before.Measure the corresponding depth of water by means of Other Instruments such as steel ruler, then flow sensor is navigated to corresponding depth of water point, the flow velocity of point-to-point measurement record each point.Whole process very complicated, very consuming time.Especially for big test model, measuring point reaches hundreds of and even thousands of point, and the depth of water of each point of pointwise manual measurement and the position of adjusting flow sensor are the work that ten minutes is vast and numerous, require a great deal of time and manpower.Therefore, river conservancy worker, harbour model test press for a kind of device that can accomplish the measurement of the depth of water automatically and by the measurement rule of regulation flow sensor navigated to the collection of specified point completion flow velocity automatically.
Summary of the invention
Technical matters to be solved by this invention is the deficiency to prior art, and a kind of water depth flow speed self-operated measuring unit is provided, and realizes the automatic measurement of water depth flow speed, significantly improves the precision of fluid-velocity survey efficient, flow sensor positioning control.
For realizing the automatic synchro measure of water depth flow speed, need depth of water sensor and flow sensor be combined into one.After accomplishing bathymetric survey, and then carry out the measurement of vertical line each point flow velocity.Meanwhile, the bathymetric survey sensor bulk is as far as possible little, thereby guarantees that stream field does not produce disturbance, is independent of each other with the measurement of guaranteeing both.
Flow sensor can be selected current version for use, can be the rotary propeller type flow sensor of using always, also can be the flow sensor of other type.The present invention adopts two tiny tinsels as depth of water sensor, cooperates resistance between suitable circuit measuring two tinsels, realizes bathymetric survey indirectly.Two tinsels are fixed on the bakelite plate, each other at a distance of 10 to 20mm.Two tinsel height are less than 4mm, and bakelite plate thickness is not more than 2mm, and depth of water sensor is installed overall height and is no more than 6mm.The bakelite plate width is no more than the thickness of flow sensor frame beam.It is very little that institute adds depth of water sensor bulk, effectively reduced the disturbance and additional fluid-velocity survey blind area of stream field.
Technical scheme of the present invention is:
A kind of water depth flow speed self-operated measuring unit comprises a side lever, is slidingly connected through power wheel and cabinet, and the cabinet built-in motor is through the rotation of driving-belt control power wheel;
Measuring staff lower end fixed flow rate sensor, flow sensor bottom adhesive glue plank, bakelite plate thickness is not more than 2mm; Two tinsels are fixed on the bakelite plate, and two tinsel height are less than 4mm, each other at a distance of 10 to 20mm.
Built-in metering circuit of cabinet and control circuit, two tinsels are connected with the interior metering circuit of cabinet, and resistance comes the measurement of the realization depth of water indirectly between two tinsels through measuring; Control circuit is according to the needs of measuring, and the control measuring staff moves up and down.
Described flow sensor can be rotary propeller type, electromagnetic type, hot wire type, the ultrasonic formula flow sensor of reining in.
Described tinsel can be for stainless steel wire, copper wire or through other tinsel of antirust processing.
The principle of bathymetric survey: when two tinsels were positioned at water surface top, two interelectrode media were air, and the resistance between two tinsels is very high, and bridge circuit output this moment high level VH is as shown in Figure 2.When two tinsels move down when touching the water surface, because the electric conductivity of water body is more much better than than air, so resistance sharply reduces between two tinsels, output voltage drops to VL district among the figure fast.According to this catastrophe characteristics of voltage, instrument can judge that two tinsels touch the water surface and note current water surface site, and the measuring staff of device control subsequently continues to move downward, and the resistance between two tinsels can further reduce, and circuit output voltage also can descend gradually; When two tinsels during near bed surface, the electric conductivity of bed surface solid dielectric is significantly different with water body, can cause the sudden change once more of voltage.Usually the resistance of the resistance ratio water body of bed surface is much bigger; So the resistance when touching bed surface between two tinsels can significantly increase; Causing circuit output voltage obviously to rise, is that decidable two tinsels touch bed surface according to this variation characteristic of output voltage, and the device recording current location is also subtracted each other with water surface site; Obtain the depth of water of current point, thereby accomplish the vertical line bathymetric survey.
After accomplishing bathymetric survey, water depth flow speed self-operated measuring unit of the present invention can be according to the measurement rule of prior setting, and the flow sensor that will be fixed on same measuring staff automatically rises to the depth of water place of appointment, accomplishes the collection of corresponding point flow velocity.The fluid-velocity survey process is accomplished from bottom to top successively.
The present invention realizes the automatic continuous coverage of water depth flow speed first, has significantly improved automaticity, efficiency of measurement and the bearing accuracy of fluid-velocity survey, for the quick synchronous acquisition that realizes the multiple spot flow velocity provides technical support effectively.Realize bathymetric survey indirectly through measuring resistance, design ingeniously, reduced influence to greatest extent current.
Description of drawings
Fig. 1, water depth flow speed self-operated measuring unit structural representation of the present invention.Wherein, 1-measuring staff, 2-power wheel, 3-cabinet, 4-motor, 5-driving-belt, 6-flow sensor, 7-bakelite plate, 8-tinsel.
The change in voltage situation of Fig. 2, the different depth of waters.
Embodiment
As shown in Figure 1, a kind of water depth flow speed self-operated measuring unit comprises a side lever, is slidingly connected through power wheel wheel and cabinet, and the cabinet built-in motor is through the rotation of driving-belt control power wheel;
Measuring staff lower end fixed flow rate sensor, flow sensor bottom adhesive glue plank, bakelite plate thickness is not more than 2mm; Two tinsels are fixed on the bakelite plate, and two tinsel height are less than 4mm, each other at a distance of 10 to 20mm.
Built-in metering circuit of cabinet and control circuit, two tinsels are connected with the interior metering circuit of cabinet, and resistance comes the measurement of the realization depth of water indirectly between two tinsels through measuring; Control circuit is according to the needs of measuring, and the control measuring staff moves up and down.
Embodiment one
Flow sensor has adopted the structure of photoelectricity rotary propeller type, and water movement promotes to revolve oar and rotates, and the speed of revolving the oar rotation is directly proportional with flow velocity, just can obtain corresponding flow velocity so measure the rotating speed that revolves oar.The edge side that revolves the blade of oar is coated with high reflecting material; When the bright blade edge of plating rotates to the bottom of photoelectricity side head; To produce a reflection light pulse signal; Convert an electric impulse signal to through metering circuit, install the umber of pulse of interior counting circuit, and calculate corresponding flow velocity according to the relation that prior rate is reserved with recording prescribed correspondence in the time.
Its course of work is: after the water depth flow speed self-operated measuring unit start of the present invention, the control measuring staff automatically resets to zero point, and instrument is ready.When beginning to measure, device control motor rotates, and drives measuring staff and moves downward, and the metering circuit in the cabinet writes down the distance that measuring staff moves at any time.When two tinsels touched the water surface, the resistance between two tinsels sharply descended and makes the bridge circuit output voltage sharply descend, and after metering circuit captures voltage reduction signal, writes down current location immediately, i.e. the position of the water surface.Measuring staff continues to move downward subsequently; When potential electrode during near to or in contact with bed surface, resistance significantly increases between two tinsels, and bridge circuit voltage also significantly rises thereupon; After metering circuit captures the remarkable rising of voltage signal; Stop to move downward of measuring staff immediately, write down the position of current bed surface, and calculate the corresponding depth of water according to bed surface and water surface site.According to the fluid-velocity survey rule of default, position and carry out the collection of flow velocity again to revolving the oar gauge head.For example, when measuring rule and be chosen to be 1 method, device navigates to flow sensor apart from 0.6 times of depth of water place of the water surface automatically, automatically according to the sampling time of setting in advance, counts revolving the number of turns that oar rotates, and carries out 5 duplicate measurementss altogether.Counting is accomplished the back device and is calculated corresponding flow velocity automatically and be kept in the interior storer of device.If be chosen to be 3 methods, then navigate to flow sensor apart from 0.8 times of the water surface, 0.6 times and 0.2 times of depth of water place successively and gather and preserve the flow speed value of respective point.
Apparatus of the present invention can link to each other with computing machine through communication interface.When host computer needed reading of data, host computer sent the order of calling out and uploading data to device, and device is passed to host computer with measurement data after receiving calling and uploading data command.Device can adopt serial communication or network interface communication mode with the communication mode of host computer.Host computer can directly be controlled the work of this device and read measurement data through communication mode.
For the ease of the expansion of system, device has adopted point-to-points communication pattern, adopts RS485 (or network service) interface, can realize the control of a computing machine to many water depth flow speed self-operated measuring units, thereby constitutes multichannel water depth flow speed measuring system.Hardware during simultaneously for the ease of system extension connects, and the power interface of device and communication interface have all adopted the pattern of one-in-and-one-out, and system extension is very convenient.
Claims (3)
1. a water depth flow speed self-operated measuring unit comprises side lever (1), is slidingly connected through power wheel (2) and cabinet (3), and cabinet (3) built-in motor (4) is through the rotation of driving-belt (5) control power wheel (2);
Measuring staff (1) lower end fixed flow rate sensor (6), flow sensor bottom adhesive glue plank (7), bakelite plate thickness is not more than 2mm; Two tinsels (8) are fixed on the bakelite plate (7), and two tinsel height are less than 4mm, each other at a distance of 10 to 20mm;
Built-in metering circuit of cabinet (3) and control circuit, two tinsels are connected with the interior metering circuit of cabinet, and resistance comes the measurement of the realization depth of water indirectly between two tinsels through measuring; Control circuit is according to the needs of measuring, and the control measuring staff moves up and down.
2. described water depth flow speed self-operated measuring unit according to claim 1 is characterized in that, flow sensor is rotary propeller type, electromagnetic type or ultrasonic Doppler formula flow sensor.
3. described water depth flow speed self-operated measuring unit according to claim 1 is characterized in that described tinsel is stainless steel wire or copper wire.
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| CN2012103198903A CN102829771A (en) | 2012-09-03 | 2012-09-03 | Device for automatically measuring water depth flow velocity |
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| CN2012103198903A CN102829771A (en) | 2012-09-03 | 2012-09-03 | Device for automatically measuring water depth flow velocity |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259368A (en) * | 2015-11-20 | 2016-01-20 | 青岛爱之渔海洋科技有限公司 | Optical induction type flow velocity measuring method and high-sensitivity flow meter |
| CN105486883A (en) * | 2015-12-07 | 2016-04-13 | 浙江省海洋水产研究所 | Bottom measuring equipment for measuring bottom sea water flow velocity |
| CN107941305A (en) * | 2017-11-16 | 2018-04-20 | 山东大学 | A kind of drowned flow artificial wet land water level gauge and its detection method |
| CN112485466A (en) * | 2020-11-13 | 2021-03-12 | 长江水利委员会长江科学院 | Calibration system and method of three-dimensional pulsating flow velocity measuring device |
| CN113433278A (en) * | 2021-05-31 | 2021-09-24 | 华南理工大学 | Multi-parameter online monitoring instrument and monitoring method for water quality of self-powered tap water pipe network |
| CN117824596A (en) * | 2024-03-05 | 2024-04-05 | 中交第一航务工程勘察设计院有限公司 | Voltage proportional fixed-point ocean current observation device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408424A (en) * | 2008-08-18 | 2009-04-15 | 上海第二工业大学 | Water depth flow speed temperature vertical continuous measuring system |
| CN101476915A (en) * | 2008-11-04 | 2009-07-08 | 水利部交通部电力工业部南京水利科学研究院 | Detection type water level measuring method and detection type water level meter |
| KR101004028B1 (en) * | 2010-10-05 | 2010-12-31 | 임홍식 | An automatically water level regulator for stretch sensor |
| JP2011064619A (en) * | 2009-09-18 | 2011-03-31 | Hokoku Eng Kk | Method for measuring groundwater level |
| KR101076774B1 (en) * | 2010-12-29 | 2011-10-26 | 충북대학교 산학협력단 | Submergence sensing device and method for submergence sensing using the same |
| CN102331275A (en) * | 2011-06-10 | 2012-01-25 | 中国海洋大学 | Penetration probe-based deep sea multi-element comprehensive observation system |
-
2012
- 2012-09-03 CN CN2012103198903A patent/CN102829771A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408424A (en) * | 2008-08-18 | 2009-04-15 | 上海第二工业大学 | Water depth flow speed temperature vertical continuous measuring system |
| CN101476915A (en) * | 2008-11-04 | 2009-07-08 | 水利部交通部电力工业部南京水利科学研究院 | Detection type water level measuring method and detection type water level meter |
| JP2011064619A (en) * | 2009-09-18 | 2011-03-31 | Hokoku Eng Kk | Method for measuring groundwater level |
| KR101004028B1 (en) * | 2010-10-05 | 2010-12-31 | 임홍식 | An automatically water level regulator for stretch sensor |
| KR101076774B1 (en) * | 2010-12-29 | 2011-10-26 | 충북대학교 산학협력단 | Submergence sensing device and method for submergence sensing using the same |
| CN102331275A (en) * | 2011-06-10 | 2012-01-25 | 中国海洋大学 | Penetration probe-based deep sea multi-element comprehensive observation system |
Non-Patent Citations (3)
| Title |
|---|
| 刘小丽，周兆英: "基于碳纳米管宏观的热线式流速探针", 《固体电子学研究与进展》, vol. 30, no. 4, 31 December 2010 (2010-12-31) * |
| 刘骁: "河流模型水深流速测试系统研制", 《中国优秀硕士学位论文全文数据库信息科技辑》, 30 September 2008 (2008-09-30) * |
| 马志敏 等: "河工模型三维地形测量系统的研制", 《长江科学院院报》, vol. 23, no. 1, 28 February 2006 (2006-02-28) * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259368A (en) * | 2015-11-20 | 2016-01-20 | 青岛爱之渔海洋科技有限公司 | Optical induction type flow velocity measuring method and high-sensitivity flow meter |
| CN105486883A (en) * | 2015-12-07 | 2016-04-13 | 浙江省海洋水产研究所 | Bottom measuring equipment for measuring bottom sea water flow velocity |
| CN105486883B (en) * | 2015-12-07 | 2018-06-15 | 浙江省海洋水产研究所 | The sinking type analyzer of bottom seawater flow velocity |
| CN107941305A (en) * | 2017-11-16 | 2018-04-20 | 山东大学 | A kind of drowned flow artificial wet land water level gauge and its detection method |
| CN107941305B (en) * | 2017-11-16 | 2019-10-18 | 山东大学 | A kind of drowned flow artificial wet land water level gauge and its detection method |
| CN112485466A (en) * | 2020-11-13 | 2021-03-12 | 长江水利委员会长江科学院 | Calibration system and method of three-dimensional pulsating flow velocity measuring device |
| CN113433278A (en) * | 2021-05-31 | 2021-09-24 | 华南理工大学 | Multi-parameter online monitoring instrument and monitoring method for water quality of self-powered tap water pipe network |
| CN117824596A (en) * | 2024-03-05 | 2024-04-05 | 中交第一航务工程勘察设计院有限公司 | Voltage proportional fixed-point ocean current observation device and method |
| CN117824596B (en) * | 2024-03-05 | 2024-05-17 | 中交第一航务工程勘察设计院有限公司 | Voltage proportional fixed-point ocean current observation device and method |
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Application publication date: 20121219 |