CN103063198A - Space-time correlation measurement and control system for underwater micro topographic variation - Google Patents
Space-time correlation measurement and control system for underwater micro topographic variation Download PDFInfo
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- CN103063198A CN103063198A CN2012105873611A CN201210587361A CN103063198A CN 103063198 A CN103063198 A CN 103063198A CN 2012105873611 A CN2012105873611 A CN 2012105873611A CN 201210587361 A CN201210587361 A CN 201210587361A CN 103063198 A CN103063198 A CN 103063198A
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Abstract
The invention provides a space-time correlation measurement and control system for underwater micro topographic variation. Two ends of an inclined rod of an upper fixed bracket are fixedly connected with transverse rods respectively; the two ends of a longitudinal rod are fixedly connected with the transverse rods respectively; a vernier depth gauge is arranged on the longitudinal rod; the vernier depth gauge penetrates through a sensor fixing flat plate; a supporting rod is arranged at the lower part of the sensor fixing flat plate; the vernier depth gauge is fixed through a U-shaped clip on the supporting rod; a screw rod of each sensor fixing rod is fixedly connected with a first end of a stainless steel pipe after penetrating through the sensor fixing flat plate; and each ultrasonic transducer is arranged at a second end of the stainless steel pipe. According to the invention, difficulty problems in underwater micro topographic dynamic continuous measurement in flume experiment and a river model test are solved; the space-time correlation measurement and control system for the underwater micro topographic variation, provided by the invention, has the advantages of simple structure, reasonable sensor layout and higher application value; and a simple and feasible measurement method is provided for in-depth study on interaction between water and sediment, morphological development of a bed surface, variation of the bed surface and motion of the bed surface.
Description
Technical field
The present invention relates to the temporal and spatial correlations TT﹠C system that a kind of mima type microrelief under water changes, belong to underwater topography exploration engineering field.
Background technology
River dynamics is the husky interactional science of research water, and the silt of general river bed surface can form rich and varied bed surface form under the effect of current.The bed surface form can impact the current of flowing through on it, and the turbulent fluctuation that nearly bottom face is current occurs and the main region of development, the bed surface form laterally, vertical scale and dynamic deformation thereof all can cause the change of flow turbulent structure.
In view of the complex nature of the problem, and bed surface form and the current interaction of directly measuring natural river course also have difficulties, present stage also concentrates in the laboratory bed surface form and current repercussion study, and research mode generally adopts flume test or river model test to carry out.The motion of bed surface form is the embodiment of sand grain group movement, generally be three-dimensional configuration, the bed surface form its shape, highly constantly changes under the continuous action of current, the different parts height is different, shows as the passing distortion of bed surface form local deformation and general morphology.It is its basis to flow action of research that under water scale size, the time dependent dynamic process of bed surface form are carried out Measurement accuracy.
In the laboratory, generally adopt at present the manual measurement method: after forming the bed surface form in the current, water in tank or the river model test is bled off, then adopt artificial chaining pin to measure the height of each point, the planimetric position of mobile chaining pin is to obtaining the quantized data of bed surface mima type microrelief behind a plurality of point measurements.
Because chaining pin can impact bed surface under the moving water condition, manual measurement must first water be drained after carry out, can't measure the dynamic development process of bed surface form; And the measurement of difference realizes by the planimetric position of mobile chaining pin, wastes time and energy.
Summary of the invention
The dynamic development process that can't measure bed surface form of the present invention for existing in the measuring technique that solves the existing form of bed surface under water, and the measurement of difference need to realize, expend the problem of more manpower and time by the planimetric position of mobile chaining pin, and then the temporal and spatial correlations TT﹠C system that provides a kind of mima type microrelief under water to change.For this reason, the invention provides following technical scheme:
The temporal and spatial correlations TT﹠C system that a kind of mima type microrelief under water changes comprises: top fixed support, vernier depth gauge, sensor fixed flat planar, several sensor fixed bar and array of ultrasonic sensors;
Described top fixed support is comprised of longitudinal rod, oblique rod and two transverse bars, the two ends of described oblique rod are fixedly connected with a described transverse bar respectively, and the two ends of described longitudinal rod are fixedly connected with a described transverse bar respectively and described vernier depth gauge is arranged on the described longitudinal rod;
Described vernier depth gauge passes from described sensor fixed flat planar, is provided with support bar in described sensor fixed flat planar bottom, and described vernier depth gauge is fixed by the U-shaped clamp on the described support bar;
Each described sensor fixed bar forms by a screw rod and a stainless-steel tube, described ultrasonic array comprises the sensor identical with described sensor fixed bar quantity, each described screw rod all passes described sensor fixed flat planar and is fixedly connected with the first end of a described stainless-steel tube, and each described ultrasonic sensor all is arranged on the second end of a described stainless-steel tube.
The present invention adopts the top fixed support that can move, by vernier depth gauge and sensor array bed surface form is under water measured, solved the difficult problem of mima type microrelief dynamic continuance measurement under water in flume test and the river model test, have simple in structure, the rational characteristics of sensor arrangement mode, for the husky interaction of further investigation water, bed surface Form Development, variation and motion provide a kind of simple measuring method, has higher using value.
Description of drawings
Fig. 1 is the support bracket fastened structural representation in top that the embodiment of the invention provides;
Fig. 2 is the structural representation that top fixed support that the embodiment of the invention provides is fixedly connected with vernier depth gauge;
Fig. 3 is the structural representation that vernier depth gauge that the embodiment of the invention provides is fixedly connected with the sensor fixed flat planar;
Fig. 4 structural representation that to be the sensor fixed bar that provides of the embodiment of the invention be fixedly connected with ultrasonic sensor with the sensor fixed flat planar;
Fig. 5 is the layout synoptic diagram of the ultrasonic sensor that provides of the embodiment of the invention.
Embodiment
Below in conjunction with the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
The temporal and spatial correlations TT﹠C system that the specific embodiment of the present invention provides a kind of mima type microrelief under water to change, shown in Fig. 1 to 5, comprising: top fixed support, vernier depth gauge 2, sensor fixed flat planar 3, several sensor fixed bar and array of ultrasonic sensors;
The top fixed support is comprised of longitudinal rod 11, oblique rod 12 and two transverse bars 13, the two ends of oblique rod 12 are fixedly connected with a transverse bar 13 respectively, and the two ends of longitudinal rod 11 are fixedly connected with a transverse bar 13 respectively and vernier depth gauge 2 is arranged on the longitudinal rod 11;
Each sensor fixed bar forms by a screw rod 41 and a stainless-steel tube 42, ultrasonic array comprises the sensor 5 identical with sensor fixed bar quantity, each screw rod 41 all passes sensor fixed flat planar 3 and is fixedly connected with the first end of a stainless-steel tube 42, and each ultrasonic sensor 5 all is arranged on the second end of a stainless-steel tube 42.
The ultimate principle of the temporal and spatial correlations TT﹠C system that the mima type microrelief under water that this embodiment provides changes is to utilize ultrasonic sensor to measure the bed surface position to the distance between the sensor, a plurality of ultrasonic sensors adopt the optimal way combination, can measure synchronously, in real time the bed elevation of different parts, be contactless, can test constantly the technical scheme of bed surface Form Development, motion under water.
Concrete, as shown in Figure 1, the top fixed support is used for the fixing of array of ultrasonic sensors 5, can be made by 3 * 3cm angle steel, is comprised of longitudinal rod 11, oblique rod 12 and two transverse bars 13.In the punching of the appropriate location of longitudinal rod 11, oblique rod 12 and two transverse bars 13, the two ends of oblique rod 12 are fixedly connected with a transverse bar 13 respectively respectively, and the two ends of longitudinal rod 11 are fixedly connected with a transverse bar 13 respectively.Transverse bar 13 can be positioned over system on the test aircraft of tank limit wall or river model test, and transverse bar 13 also is used for fixedly vernier depth gauge 2, and oblique rod 12 mainly plays a supportive role, and makes the support bracket fastened Stability Analysis of Structures in whole top.
Sensor fixed flat planar 3 can predetermined thickness (0.5-2cm) poly (methyl methacrylate) plate, to guarantee flat board certain Rigidity and strength is arranged, large I is determined according to the sensor of arranging.As shown in Figure 3, in central authorities' punching of sensor fixed flat planar 3, fix the support bar 31 of an angle steel in sensor fixed flat planar 3 bottoms that have of this hole one side first; Vernier depth gauge 2 is passed the hole of central authorities, and the U-shaped clamp 32 that passes through on the support bar 31 is fixing.
Each sensor fixed bar all can be comprised of the screw rod 41 of a diameter 8mm and the stainless-steel tube 42 of diameter 8mm, as shown in Figure 4, screw rod 41 has passed sensor fixed flat planar 3, and two nuts about using respectively, screw rod 41 is fixed on the sensor fixed flat planar 3, and the first end of stainless-steel tube 42 can be by being fixed on the screw rod 41 with adhesive waterproof tape.Have the breach of predetermined length (can be 2cm) at the second end of stainless-steel tube 42, ultrasonic sensor 5 embeds in the described breach, and fixes by adhesive waterproof tape.
Preferably, array of ultrasonic sensors can comprise ten ultrasonic sensors 5, and arrangement as shown in Figure 5.Ten ultrasonic sensors 5 totally are triangularly arranged, wherein six ultrasonic sensor 5 arrangements in T shape, and 3 centimetres of spacings, other four ultrasonic sensors 5 are yi word pattern and arrange spacing 5cm.
Ten ultrasonic sensor 5 bed elevation data of surveying can by computer real-time acquisition, can obtain the bed surface mima type microrelief altitude figures of ten different parts synchronously.Single ultrasonic sensor 5 checks order and is listed as and can single-point bed elevation temporal evolution be analyzed; The data of different ultrasonic sensors 5 can be in order to analyze the spatial coherence of movable bed bed surface different parts.The arrangement mode that this embodiment adopts has utilized ten ultrasonic sensors 5 to greatest extent, can obtain the bed surface continuous modification dynamic process of the different spacing such as water (flow) direction 3cm, 6cm, 9cm and horizontal spacing 3cm, 5cm, 6cm, 10cm, 15cm different spacing, provide abundant basic data for bed surface dynamic deformation under the further investigation flow action and to the impact analysis of current.
The initialization serial ports:
MSComml.CommPort=1 ' setting Com1
If?MSComml.PortOpen=False?Then
MSComm1.Settings=" 9600, n, 8,1 " ' 9600 baud rates, no parity check, 8 bit data positions, 1 position of rest
MSComm1.PortOpen=True ' opens serial ports
End?if
Send the address to sensor:
MSComm1.Output=" 1 " ' send address code, the sensor address code is 1 in this example
Receive data:
Buffer=MSComm1.Input ' connects the sensor measurement data
The sensor output format is:
" #1.00T0.1151C20.32 ", " #1.00 " be the sensor address code; " T0.1151 " be measured value, i.e. distance between the sensor ultrasound wave surface of emission and the bed surface, unit is m; " C20.32 " be measured temperature, unit is degree.
Measured value is extracted from output string, in conjunction with obtaining the bed elevation data according to the reading on the vernier depth gauge.
Ten ultrasonic sensors 5 arrange respectively different address codes, can enter computing machine by same RS485, and as previously mentioned, the address that sends successively ten ultrasonic sensors 5 can obtain the bed elevation of different parts.
The Timer function that utilizes VB to carry is got 500ms interval time, and the circulation above-mentioned steps can constantly be measured and gather current bed surface landform.
The technical scheme that adopts this embodiment to provide, by vernier depth gauge and sensor array bed surface form is under water measured, solved the difficult problem of mima type microrelief dynamic continuance measurement under water in flume test and the river model test, have simple in structure, the rational characteristics of sensor arrangement mode, for the husky interaction of further investigation water, bed surface Form Development, variation and motion provide a kind of simple measuring method, has higher using value.
The above; only be the better embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the embodiment of the invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. the temporal and spatial correlations TT﹠C system of a mima type microrelief variation under water is characterized in that, comprising: top fixed support, vernier depth gauge, sensor fixed flat planar, several sensor fixed bar and array of ultrasonic sensors;
Described top fixed support is comprised of longitudinal rod, oblique rod and two transverse bars, the two ends of described oblique rod are fixedly connected with a described transverse bar respectively, and the two ends of described longitudinal rod are fixedly connected with a described transverse bar respectively and described vernier depth gauge is arranged on the described longitudinal rod;
Described vernier depth gauge passes from described sensor fixed flat planar, is provided with support bar in described sensor fixed flat planar bottom, and described vernier depth gauge is fixed by the U-shaped clamp on the described support bar;
Each described sensor fixed bar forms by a screw rod and a stainless-steel tube, described ultrasonic array comprises the sensor identical with described sensor fixed bar quantity, each described screw rod all passes described sensor fixed flat planar and is fixedly connected with the first end of a described stainless-steel tube, and each described ultrasonic sensor all is arranged on the second end of a described stainless-steel tube.
2. system according to claim 1 is characterized in that, described sensor fixed flat planar is the poly (methyl methacrylate) plate of predetermined thickness.
3. system according to claim 1 is characterized in that, described screw rod is fixed on the described sensor fixed flat planar by two nuts up and down.
4. system according to claim 1 is characterized in that, has the hole at described longitudinal rod and described vernier depth gauge, and by bolt described longitudinal rod is fixedly connected with described vernier depth gauge.
5. system according to claim 1 is characterized in that, the second end of described stainless-steel tube has the breach of predetermined length, and described ultrasonic sensor embeds in the described breach, and fixes by adhesive waterproof tape.
6. system according to claim 1 is characterized in that, described array of ultrasonic sensors comprises ten ultrasonic sensors, six described ultrasonic sensor arrangements in T shape wherein, and four described ultrasonic sensors in addition are yi word pattern and arrange.
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| CN201210587361.1A CN103063198B (en) | 2012-12-28 | 2012-12-28 | Space-time correlation measurement and control system for underwater micro topographic variation |
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| CN201210587361.1A CN103063198B (en) | 2012-12-28 | 2012-12-28 | Space-time correlation measurement and control system for underwater micro topographic variation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269469A (en) * | 2018-11-21 | 2019-01-25 | 四川中水成勘院测绘工程有限责任公司 | A kind of bathymetric surveying device and method |
| CN109405799A (en) * | 2018-08-27 | 2019-03-01 | 浙江省水利河口研究院 | A kind of landform self-operated measuring unit and method based on light passing degree |
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| JP4435899B2 (en) * | 1999-04-13 | 2010-03-24 | 俊之 河合 | Depth gauge |
| CN102269816A (en) * | 2011-05-06 | 2011-12-07 | 中南大学 | Ultrasonic underwater microtopography detection testing device and method |
| CN102589531A (en) * | 2012-01-05 | 2012-07-18 | 天津市水利科学研究院 | Underwater topography measurement boat as well as manufacturing method and measurement method |
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2012
- 2012-12-28 CN CN201210587361.1A patent/CN103063198B/en not_active Expired - Fee Related
Patent Citations (4)
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| JP4435899B2 (en) * | 1999-04-13 | 2010-03-24 | 俊之 河合 | Depth gauge |
| CN101620052A (en) * | 2009-07-29 | 2010-01-06 | 四川大学 | Young's elastic modulus tester with vernier depth gauge |
| CN102269816A (en) * | 2011-05-06 | 2011-12-07 | 中南大学 | Ultrasonic underwater microtopography detection testing device and method |
| CN102589531A (en) * | 2012-01-05 | 2012-07-18 | 天津市水利科学研究院 | Underwater topography measurement boat as well as manufacturing method and measurement method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405799A (en) * | 2018-08-27 | 2019-03-01 | 浙江省水利河口研究院 | A kind of landform self-operated measuring unit and method based on light passing degree |
| CN109269469A (en) * | 2018-11-21 | 2019-01-25 | 四川中水成勘院测绘工程有限责任公司 | A kind of bathymetric surveying device and method |
| CN109269469B (en) * | 2018-11-21 | 2021-02-26 | 四川中水成勘院测绘工程有限责任公司 | Underwater terrain measuring device and method |
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