CN101788566B - Three-dimensional flow transducer - Google Patents
Three-dimensional flow transducer Download PDFInfo
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- CN101788566B CN101788566B CN2010101114529A CN201010111452A CN101788566B CN 101788566 B CN101788566 B CN 101788566B CN 2010101114529 A CN2010101114529 A CN 2010101114529A CN 201010111452 A CN201010111452 A CN 201010111452A CN 101788566 B CN101788566 B CN 101788566B
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Abstract
The invention discloses a three-dimensional flow transducer, which is characterized in that a shell is an axial symmetrical rotator; and a horizontal force measuring unit, a gravity balancing unit, a vertical force measuring unit and a support rod extending to the exterior of the shell are arranged inside the shell. The three-dimensional flow transducer has the advantages of no motion components, reliable work, long service life, and capability of measuring three-dimensional flow.
Description
Technical field
The present invention relates to the flow-velocity sensing device, the flow-velocity sensing device that a kind of three-dimensional flow that can be used for fluid of more specifically saying so is measured.
Background technology
Flow velocity is an important basic parameter of fluid, fluid-velocity survey receives much concern, the important content that is oceanographic survey as the real-time monitoring and the measurement in flow field, ocean, the motion of ocean water body is and phenomenons such as the EI Nino close ties that cause the global climate abnormality, the monitoring ocean current changes in real time, can in time predict weather, and propose to take precautions against rule.
In ocean, river and atmospheric envelope, the flow velocity of liquids and gases presents with the form of trivector often, and the size of velocity component also often exists than big-difference between each dimension.Such as, the flow velocity size of upward flow is sometimes or even one of the percentage of horizontal flow or per mille in the ocean.Yet, though the fluid-velocity survey instrument of a great variety, differ from one another, be applied in the different fluid-velocity surveys; But present Pitot tubular type differential pressure flow sensor, mechanical type rotor flow sensor, electromagnetic type flow sensor, hot type flow sensor, Doppler's acoustics flow sensor and PIV particle imaging knotmeter etc., or measuring accuracy is difficult to improve, or have rotatable parts, or be difficult to satisfy the measurement of three-dimensional flow, or cost higher price costliness, or working environment had specific (special) requirements, all this kind all makes its application be subjected to great restriction.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology weak point, a kind of movement-less part, reliable operation, long service life being provided, can being competent at the three-dimensional flow transducer that three-dimensional flow is measured.
The present invention adopts following technical scheme for the technical solution problem:
The design feature of three-dimensional flow transducer of the present invention is that housing is set is the rotational symmetry rotary body, be provided with horizontal force measuring unit, gravity balance unit, vertical force measurement unit in the inside of housing and extend to the support bar of the outside of housing; Wherein:
Described horizontal force measuring unit is " ten " word beam in the surface level, the center-side of " ten " word beam is that the outer end of intermediate support, " ten " word beam is the "T"-shaped floating beam that is provided with, being connected with housing with described each floating beam, is the horizontal force sensing unit with described " ten " word beam;
Described gravity balance unit has balance stem, the intermediate support of " ten " word beam is supported on an end of described balance stem, the other end at described balance stem fixedly installs the gravitational equilibrium piece, and balance stem is suspended on the back-up block of the support bar in the housing with the flexible suspension member of its balance fulcrum position;
Described vertical force measurement unit is that vertical strut vertically is set on described balance stem, between the back-up block of the top of described vertical strut and support bar vertical beam or horizontal beam is set, and is the vertical force sensing unit with described vertical beam or horizontal beam.
The design feature of three-dimensional flow transducer of the present invention also is:
Between the intermediate support of described " ten " word beam and the back-up block of support bar, be and be horizontally disposed with the horizontal force transfer beams.
Described housing is spherical, cylindrical or elliposoidal.
The housing of described housing for sealing is set, and when working under water, full of liquid in the housing of sealing is connected with soft capsule or corrugated tube between described housing and support bar.
Compared with the prior art, the invention has the beneficial effects as follows:
1, the housing that rotational symmetry is rotated among the present invention is subjected to the drag effect of streaming of fluid, can obtain perpendicular to the fluid winding flow resistance on the plane of its axis by the horizontal force sensing unit, can obtain to realize the measurement of three-dimensional flow by the vertical force sensing unit along the fluid winding flow resistance on its axis direction.
2, three-dimensional flow transducer of the present invention is by rotational symmetry rotary shell parcel, simple in structure, is easy to sealing, when working in the environment under water, is easy to realize pressure equilibrium.
3, the gravity balance unit among the present invention can be eliminated the influence of gravity to the vertical direction fluid measurement, improves the measuring accuracy to the vertical direction flow velocity.
4, horizontal force measuring unit among the present invention and vertical force measurement unit work alone separately, can satisfy that flow velocity differs bigger fluid-velocity survey between dimension.
5, the present invention is at the fluid-velocity survey equal movement-less part of each dimension on direction, and no wearing and tearing, reliable operation, serviceable life are longer.
6, the present invention can select existing power or displacement electrical signal conversion element or sensor preferably, obtain the strain or the displacement of horizontal force measuring unit and vertical force measurement unit, thereby satisfy the different accuracy requirement, the need of work of different environments for use under water or in the air.
Description of drawings
Fig. 1 adopts the spherical shell outside drawing for the present invention.
Fig. 2 adopts cylindrical shell body profile figure for the present invention.
Fig. 3 is a perspective view of the present invention.
Fig. 4 is an inner structure front view of the present invention.
Fig. 5 is an inner structure vertical view of the present invention.
Fig. 6 is the composition diagram of gravity balance unit of the present invention, vertical force measurement unit, flexible suspension member and horizontal force transfer beams.
Number in the figure: 1 housing, 2 support bars, 21 back-up blocks, 3 gravity balance unit, 31 gravitational equilibrium pieces, 32 balance stems, 4 horizontal force measuring units, 41 are " ten " word beam, 42 floating beams, 43 intermediate supports, 5 vertical force measurement unit, 51 horizontal beams, 52 vertical struts, 6 flexible suspension members, 7 horizontal force transfer beams.
Below pass through embodiment, and the invention will be further described in conjunction with the accompanying drawings.
Specific implementation method
Referring to Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, gravity balance unit 3, horizontal force measuring unit 4, vertical force measurement unit 5, flexible suspension member 6 are set in the inside of rotational symmetry rotary shell 1 and extend to the support bar 2 of rotational symmetry rotary shell 1 outside; The axis of rotational symmetry rotary shell 1 is consistent with gravity direction; Horizontal force measuring unit 4 is " ten " word beam in the surface level, and the center-side of " ten " word beam 41 is connected with intermediate support 43, the outer end of " ten " word beam 41 is connected with housing 1 by floating beam 42, is the horizontal force sensing unit with " ten " word beam 41; Housing 1, horizontal force measuring unit 4 all are to be born by flexible suspension member 6 with the gravity of gravity balance unit 3;
Referring to Fig. 4 and Fig. 6, flexible suspension member 6 is connected on the back-up block 21 of support bar 2; Vertical force measurement unit 5 vertically is provided with vertical strut 52 at balance stem 32, and between the back-up block 21 of the top of vertical strut 52 and support bar 2 vertical beam or horizontal beam 51 is set, as the vertical force sensing unit.
In concrete the enforcement, as shown in Figure 6, an end of horizontal force transfer beams 7 is to link to each other with the intermediate support 43 of " ten " word beam 41, and the other end is connected with the back-up block 21 of support bar 2.
In concrete the enforcement, the profile of housing 1 can be sphere as shown in Figure 1, also can be rotary bodies such as cylindrical or elliposoidal as shown in Figure 2.
In concrete the enforcement, housing 1 is the housing of sealing, and when working under water, full of liquid in the housing 1 of sealing is connected the pressure equilibrium inside and outside the assurance housing 1 by corrugated tube or soft capsule 8 between housing 1 and support bar 2.
Three-dimensional flow transducer is placed in the fluid to be measured, the three-dimensional that housing 1 is subjected to fluid is streamed resistance, three-dimensional is streamed resistance and is delivered on the intermediate support 43 by horizontal force measuring unit 4, wherein, the power of horizontal direction is directly delivered on the back-up block 21 by horizontal force transfer beams 7, the power that guarantees horizontal direction almost is not delivered on the vertical force measurement unit 5, thereby reduces the influence of horizontal force to vertical force measurement unit 5; Wherein, the power of vertical direction because the bending resistance of 7 pairs of vertical forces of horizontal force transfer beams is less, almost all is delivered to vertical force measurement unit 5, has guaranteed the 5 pairs of vertical force measurement sensitivity in vertical force measurement unit.Utilize the susceptibility of the power on 41 pairs of horizontal directions of " ten " word beam of horizontal force measuring unit 4, strain or displacement according to " ten " word beam 41, just can obtain the force signal on two orthogonal directions on the horizontal direction, thereby try to achieve the size and Orientation of the fluid winding flow resistance on the horizontal direction, again according to fluid stream that resistance theory, simulation value are calculated and experimental calibration is tried to achieve flow velocity on two orthogonal directions on the horizontal direction.Housing 1 suffered three-dimensional streams that component is delivered on the intermediate support 43 on the vertical direction of resistance, just on the vertical beam of vertical force measurement unit 5 or horizontal beam, produce moment of flexure, strain or displacement according to the vertical beam or the horizontal beam 51 of vertical force measurement unit 5, just can obtain the resistance that streams on the vertical direction, theory, simulation value according to the fluid winding flow resistance calculates and experimental calibration again, tries to achieve the flow velocity on the vertical direction.So, the version of " ten " word beam 41 can so that between the dimension of the beam on the horizontal force both direction coupling less, horizontal force transfer beams 7 be arranged so that horizontal force between the dimension between vertical force measurement the coupling less; The present invention can measure three-dimensional flow, and the computing method of fluid-velocity survey are comparatively simple.
Claims (3)
1. three-dimensional flow transducer is characterized in that being provided with housing (1) is provided with horizontal force measuring unit (4), gravity balance unit (3), vertical force measurement unit (5) and extends to the outside of housing (1) for the rotational symmetry rotary body, in the inside of housing (1) support bar (2); Wherein:
Described horizontal force measuring unit (4) is " ten " word beam in the surface level, the center-side of " ten " word beam (41) is that the outer end of intermediate support (43), " ten " word beam (41) is the "T"-shaped floating beam (42) that is provided with, being connected with housing (1) with described each floating beam (42), is the horizontal force sensing unit with described " ten " word beams (41);
Described gravity balance unit (3) has balance stem (32), the intermediate support (43) of " ten " word beam is supported on an end of described balance stem (32), the other end at described balance stem (32) fixedly installs gravitational equilibrium piece (31), and balance stem (32) is suspended on the back-up block (21) of the support bar (2) in the housing (1) with the flexible suspension member (6) of its balance fulcrum position;
Described vertical force measurement unit (5) is that vertical strut (52) vertically is set on described balance stem (32), between the back-up block (21) of the top of described vertical strut (52) and support bar (2) vertical beam or horizontal beam (51) being set, is the vertical force sensing unit with described vertical beam or horizontal beam (51);
Between the intermediate support (43) of described " ten " word beams (41) and the back-up block (21) of support bar (2), be and be horizontally disposed with horizontal force transfer beams (7).
2. three-dimensional flow transducer according to claim 1 is characterized in that described housing (1) is spherical, cylindrical or elliposoidal.
3. three-dimensional flow transducer according to claim 1, it is characterized in that being provided with the housing of described housing for sealing, when working under water, the interior full of liquid of the housing of sealing (1) is connected with soft capsule or corrugated tube (8) between described housing (1) and support bar (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101114529A CN101788566B (en) | 2010-02-10 | 2010-02-10 | Three-dimensional flow transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101114529A CN101788566B (en) | 2010-02-10 | 2010-02-10 | Three-dimensional flow transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101788566A CN101788566A (en) | 2010-07-28 |
| CN101788566B true CN101788566B (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101114529A Expired - Fee Related CN101788566B (en) | 2010-02-10 | 2010-02-10 | Three-dimensional flow transducer |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975869B (en) * | 2010-09-16 | 2013-11-20 | 中国海洋大学 | Long-term flow field three-dimensional monitoring device and manufacturing method thereof |
| CN103901224B (en) * | 2014-04-17 | 2016-04-06 | 合肥工业大学 | A kind of three-dimensional ocean current sensor surveying upward flow and the measuring method measuring upward flow and horizontal flow |
| CN104502625A (en) * | 2014-11-24 | 2015-04-08 | 北京交通大学 | Three-dimensional muddy water fluctuating velocity instrument |
| CN105158509B (en) * | 2015-08-24 | 2018-04-17 | 西安交通大学 | A kind of three-dimensional flow change rate sensor and measuring method based on flexoelectric effect |
| CN105486351A (en) * | 2016-01-14 | 2016-04-13 | 中国地质大学（武汉） | Real-time monitoring method and real-time monitoring system for velocity and direction of underground water current |
| CN106483323A (en) * | 2016-11-15 | 2017-03-08 | 河海大学 | A kind of pressure type flow meters |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3217536A (en) * | 1961-02-16 | 1965-11-16 | Garrett Corp | Force vector transducer |
| CN2221208Y (en) * | 1993-12-20 | 1996-02-28 | 合肥东华机电自动化研究所 | Multi-component force and moment sensor |
| CN1710394A (en) * | 2005-07-22 | 2005-12-21 | 合肥工业大学 | Deep sea pressure, flow speed and direction sensor and use thereof |
-
2010
- 2010-02-10 CN CN2010101114529A patent/CN101788566B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3217536A (en) * | 1961-02-16 | 1965-11-16 | Garrett Corp | Force vector transducer |
| CN2221208Y (en) * | 1993-12-20 | 1996-02-28 | 合肥东华机电自动化研究所 | Multi-component force and moment sensor |
| CN1710394A (en) * | 2005-07-22 | 2005-12-21 | 合肥工业大学 | Deep sea pressure, flow speed and direction sensor and use thereof |
Non-Patent Citations (1)
| Title |
|---|
| 秦平，陈鲁疆，王沛云.一种新型便携式旋桨流速仪.《海洋技术》.2009,第28卷(第1期), * |
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| CN101788566A (en) | 2010-07-28 |
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Granted publication date: 20111123 Termination date: 20180210 |