CN104697503A - A self-contained turbulent flow instrument - Google Patents
A self-contained turbulent flow instrument Download PDFInfo
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- CN104697503A CN104697503A CN201310655858.7A CN201310655858A CN104697503A CN 104697503 A CN104697503 A CN 104697503A CN 201310655858 A CN201310655858 A CN 201310655858A CN 104697503 A CN104697503 A CN 104697503A
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- Prior art keywords
- turbulent flow
- designing
- flow instrument
- instrument
- self
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
- G01C13/002—Measuring the movement of open water
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses a turbulent flow instrument for detecting ocean turbulent flow, and particularly provides a self-contained turbulent flow instrument. The turbulent flow instrument is characterized by having accurate turbulent flow observing signal and acquiring corresponding data. The overall design of the turbulent flow instrument includes designing of a measurement platform (namely a shell of the turbulent flow instrument) and designing of instrument internal signal collection, control and data storage circuits. Collection control mainly comprises selection of a processor, particularly selection of an AMRA processor. In the specification, hardware designing and software designing of the turbulent flow instrument are described in detail. In the hardware designing, designing of turbulent flow path signal paths, designing of an acceleration sensor circuit, designing of an attitude sensor, designing of a power source circuit, designing of a serial port circuit, and the like are introduced in detail. In the software designing, a serial port writer and a software overall flow chart are introduced.
Description
Technical field
The invention belongs to turbulent flow testing tool, be combine machinery, electromechanical integration equipment that electronics, control technology are integrated.
Background technology
The disorder flowing that the size and Orientation of the speed of any point all exists the instability of significantly variation in ocean water body is called turbulent flow, turbulent flow also sinuous flow or turbulent flow usually.The maintenance of turbulence state then needs the external world continually to water body supplying energy.Oceanic turbulence plays important effect in the transport of the heat of seawater, quality and momentum, it is also the power producer of regulation and control ocean thermohaline circulation, and have influence on the change of global climate, on the distribution of suspended material in seawater and the impact of the marine eco-environment, there is active effects simultaneously.How research oceanic turbulence moves to cognitive ocean circulation, improves ocean circulation and climate model has critical effect.Meanwhile, Oceanic disasters and abnormal oceanographic phenomena all need people to carry out accurate, careful and deep understanding to Oceanic Microstructure turbulent flow, so that the existing Oceanic disasters Forecast Mode of Improvement and perfection.Therefore, oceanic turbulence research has become the key areas of scientific research of seas, and the acquiring technology of oceanic turbulence data has become the core research direction of physical oceanography observation technology.
summary of the invention
The housing design of turbulent flow instrument is as accompanying drawing 1, housing is divided into a storehouse, instrument bin, intermediate bin, battery compartment, foot piece, empennage six parts, wherein there is the mechanical interface of shear Probe in head storehouse, interference is reduced as far as possible for making shear signal, also charge amplifier is placed on a storehouse, instrument bin is placed with attitude sensor, capture card, main circuit board and power interface, for making instrument bin firm, is all fixed on by each several part on a L-type aluminium sheet; Battery compartment deposits the power supply that instrument uses, and it is that each several part is powered that the power lead of drawing in battery compartment arrives instrument bin by watertight connector through intermediate bin; Foot piece is a hollow metal tube, and the derby in mobile foot piece can trim instrument, makes instrument be in horizontality.
The Data Acquisition Design of turbulent flow instrument:
The overall hardware structure diagram of turbulent flow instrument is as accompanying drawing 2, and its major parameter is as follows, the signal of shear signal and acceleration 24, shear signal and acceleration frequency acquisition are 1024Hz, and attitude signal gathers 1Hz, and the resistance to compression degree of depth is 1000m, temperature range is :-5 DEG C ~+50 DEG C, and memory capacity is 2GB.
The Software for Design of turbulent flow instrument:
STM32F107 controls calculating and the operation of total system, mainly comprise the data accepting two serial ports transmissions with interrupt mode, wherein UART1 is for shearing data and acceleration information, UART2 is the attitude data of instrument, the data of STM32F107 and UART1 and UART2 leave on SD card with .txt form respectively, and with start time named file name of sampling.STM32F107 I/O port controls the enable of power module and forbids, at Sampling device, the power module of the enable attitude sensor of STM32F107, acceleration transducer, capture card, makes each module work on power; Overall system software flow pattern is as accompanying drawing 3.
Accompanying drawing explanation
Fig. 1 is the housing design figure of turbulent flow instrument; 1-empennage; 2-foot piece; 3-battery compartment; 4-intermediate bin; 5-instrument bin; 6-head storehouse.
Fig. 2 is the overall hardware structure diagram of turbulent flow instrument part of data acquisition;
Fig. 3 is software overview flow chart;
Fig. 4 is the composition diagram of submerged buoy system.
Embodiment
For validity and the data accuracy of checking turbulent flow instrument, the turbulent flow instrument of autonomous Design and turbulent flow planing surface instrument have been carried out contrast experiment in Jiaozhou Bay, and contrast experiment is based on submerged buoy system.The composition diagram of off-lying sea experiment submerged buoy system is as accompanying drawing 4, and experiment subsurface buoy comprises ball float, temperature depth calibrator, autonomous turbulent flow instrument, current meter, acoustic releaser, ball float, web member and cable.The data of ball float calculate according to gravity proportion.The self-tolerant ocean dynamical environment submerged buoy system that accompanying drawing 4 designs has fixed point Continuous Observation seawater internal motion and the ability of oneself appearance (data storage capacity meets observation data storage capacity half a year) of data, whole system works under water completely, sea state is less on its impact, and be not easy to be subject to human damage, submerged buoy system is the visual plant and the technological means that realize ocean interior motion.
By experiment, obtain flow velocity attitude figure, by flow velocity attitude figure, can show that initial period flows to and turbulent flow instrument direction coincide, turbulent flow instrument reveals good meets fluidity, and stablizing by comparing self-control turbulent flow instrument comparison of computational results, illustrating and can measure turbulence signal accurately at self-control turbulent flow instrument, may be used for oceanic turbulence observation.
Claims (3)
1. being applied in submerged buoy system can the self-tolerant turbulent flow instrument of ocean weather station observation for a long time, and this turbulent flow instrument keeps good under water and meets fluidity, can keep steady state (SS) in water.
2. self-tolerant turbulent flow instrument according to claim 1, is characterized in that, measuring table is designed to streamlined and adds the cruciform of rudders at afterbody.
3. self-tolerant turbulent flow instrument according to claim 1, is characterized in that adopting shear Probe, and the theory calculate of the signal subsequent treatment recorded of popping one's head in all is derived under metastable prerequisite based on measuring table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655858.7A CN104697503A (en) | 2013-12-09 | 2013-12-09 | A self-contained turbulent flow instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655858.7A CN104697503A (en) | 2013-12-09 | 2013-12-09 | A self-contained turbulent flow instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104697503A true CN104697503A (en) | 2015-06-10 |
Family
ID=53344874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310655858.7A Pending CN104697503A (en) | 2013-12-09 | 2013-12-09 | A self-contained turbulent flow instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104697503A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136426A (en) * | 2015-09-21 | 2015-12-09 | 中国科学院水利部成都山地灾害与环境研究所 | Overland flow water flow movement process in vivo detection device |
| CN112697114A (en) * | 2020-11-26 | 2021-04-23 | 中山大学 | Turbulence signal data processing system and method for marine microstructure profiler |
-
2013
- 2013-12-09 CN CN201310655858.7A patent/CN104697503A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136426A (en) * | 2015-09-21 | 2015-12-09 | 中国科学院水利部成都山地灾害与环境研究所 | Overland flow water flow movement process in vivo detection device |
| CN105136426B (en) * | 2015-09-21 | 2018-11-27 | 中国科学院水利部成都山地灾害与环境研究所 | A kind of overland flow water flow movement process is in body detection device |
| CN112697114A (en) * | 2020-11-26 | 2021-04-23 | 中山大学 | Turbulence signal data processing system and method for marine microstructure profiler |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |
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| WD01 | Invention patent application deemed withdrawn after publication |