CN203479823U - Sensor apparatus for measuring flow velocity - Google Patents
Sensor apparatus for measuring flow velocity Download PDFInfo
- Publication number
- CN203479823U CN203479823U CN201320529062.2U CN201320529062U CN203479823U CN 203479823 U CN203479823 U CN 203479823U CN 201320529062 U CN201320529062 U CN 201320529062U CN 203479823 U CN203479823 U CN 203479823U
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- flow velocity
- cylinder
- differential pressure
- static pressure
- velocity differential
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Abstract
Provided is a sensor apparatus for measuring a flow velocity. The sensor apparatus is characterized by comprising a cylinder, a hemispherical contact disposed at the front end of the cylinder, and a flow velocity differential pressure sensor and an intermediate contact which are successively arranged in the cylinder, wherein a static pressure cavity is formed between the flow velocity differential pressure sensor and the intermediate contact, the wall of the static pressure cavity is provided with static pressure holes, the center of the hemispherical contact is provided with a dynamic pressure hole, and the two pressure acquisition pipes of the flow velocity differential pressure sensor respectively communicate with the dynamic pressure hole and the static pressure cavity. The sensor apparatus for measuring the flow velocity has the advantages of simple structure, low cost, mature flow velocity differential pressure sensor technology, rapid dynamic response speed and more convenient operation.
Description
Technical field
The utility model relates to hydrographic field, is specifically related to a kind of sensor device of measuring flow velocity.
Background technology
The existing sensor of measuring flow rate and direction mainly adopts acoustically, sensing mechanical type and heat-sensitive type.Although acoustically is measured precisely, price is higher, and is difficult to accomplish microminiaturization.Tradition mechanical type is adopted as vane type or three cup type measurement flow velocitys more, must adds to flow to the moving angular displacement sensor of marker tape and measure the flow direction.This traditional approach volume is slightly large, mechanical part is more, and thermal sensitivity purposes is narrower, is used for measuring channel wind speed etc., in addition the environments for use such as humidity, dust is had relatively high expectations.
Summary of the invention
The object that the utility model relates to is to overcome the shortcoming of above-mentioned measurement flow speed and direction sensor, provides that a kind of cost is low, the sensor device of rapid dynamic response speed, easy to operate differential kinetic measurement flow velocity.
In order to achieve the above object, the utility model is achieved by the following technical solutions.
A sensor device of measuring flow velocity, is characterized in that: comprise cylinder, be arranged on the hemisphere face contact of cylinder front end, and be arranged in turn flow velocity differential pressure pickup and middle contact in cylinder; Between described flow velocity differential pressure pickup and middle contact, form static pressure chamber, on the wall of static pressure chamber, offer baroport, the center of described hemisphere face contact offers pitot aperture, and two pressure acquisition pipes of flow velocity differential pressure pickup are communicated with respectively pitot aperture and static pressure chamber.
Feature of the present utility model and further technical scheme are as follows:
On described cylinder, be provided with empennage, at the middle part of cylinder, be provided with pole, pole lower end is fixed with bearing, and pole upper end is connected by ball pivot with the middle part of cylinder.
The port part of described pitot aperture is conical.
The empennage of described cylinder is provided with balanced plug.
The sensor device of measurement flow velocity of the present utility model, arranges hemisphere face contact at the front end of cylinder, and flow velocity differential pressure pickup and middle contact is set in turn in cylinder; Between flow velocity differential pressure pickup and middle contact, form static pressure chamber, on the wall of static pressure chamber, offer baroport, the center of hemisphere face contact offers pitot aperture, and two pressure acquisition pipes of flow velocity differential pressure pickup are communicated with respectively pitot aperture and static pressure chamber.Simple in structure like this, cost is low, flow velocity differential pressure pickup technology maturation, and rapid dynamic response speed, operates also convenient.
In addition the utility model is provided with empennage on cylinder, at the middle part of cylinder, is provided with pole, and pole lower end is fixed with bearing, pole upper end is connected by ball pivot with the middle part of cylinder, like this by empennage and ball pivot, and can be from motion tracking water (flow) direction, make side amount more accurate, more convenient to operate.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
Fig. 1 is a kind of structural representation of measuring the sensor device of flow velocity of the utility model;
In figure: 1, hemisphere face contact: 2, cylinder: 3, flow velocity differential pressure pickup: 4, middle contact: 5, empennage: 6, balanced plug: 7, circuit board: 8, bearing: 9, pole: 10, ball pivot: 11, baroport: 12, pitot aperture.
Embodiment
With reference to Fig. 1, for the utility model is a kind of, measure the sensor device of flow velocity, comprise cylinder 2, front end at cylinder 2 is provided with hemisphere face contact 1, and in cylinder 2, being provided with in turn flow velocity differential pressure pickup 3 and middle contact 4, tail end is provided with balanced plug 6, can fixing circuit board 7 in balanced plug 6.Circuit board 7 is for the output of flow velocity differential pressure pickup data or convection current ram compression is poor does further correction with corresponding relation flow velocity.
Between the inwall of flow velocity differential pressure pickup 3 and cylinder 2, be tightly connected, between flow velocity differential pressure pickup 3 and middle contact 4, form static pressure chamber, on the wall of static pressure chamber, offer baroport 11, baroport 11 is a plurality of, as 4,6,8, in static pressure chamber, wall is circumferentially evenly arranged.Pitot aperture 12 is offered at the center of hemisphere face contact 1, and the port part of pitot aperture 12 is conical.Two pressure acquisition pipes of flow velocity differential pressure pickup 3 are communicated with respectively pitot aperture 12 and static pressure chamber.
On the cylinder 2 of the present embodiment, be provided with empennage 5, empennage 5 is 3～8, at cylinder 2 outer walls, is circumferentially evenly arranged.At the middle part of cylinder 2, be provided with pole 9, pole 9 lower ends are fixed with bearing 8, and pole 9 upper ends are connected by ball pivot 10 with the middle part of cylinder 2.In hydrostatic situation, by selecting the balanced plug 6 of different length, the horizontal equilibrium of cylinder 2 is proofreaied and correct, after generally proofreading and correct when producing, dispatch from the factory.
During use, only need to measure the sensor device horizontal positioned of flow velocity, tracking direction automatically, according to the corresponding relation quick obtaining flow speed data of flow velocity pressure reduction and flow velocity, therefore, its dynamic response is fast.Although below by reference to the accompanying drawings a kind of embodiment of measuring the sensor device of flow velocity of the utility model is described, but the utility model is not limited to above-mentioned specific embodiments and applications field, above-mentioned specific embodiments is only schematic, guiding, rather than restrictive.Those of ordinary skill in the art, under the enlightenment of this instructions, in the situation that do not depart from the scope that the utility model claim is protected, can also make a variety of forms, and these all belong to the row of the utility model protection.
Claims (3)
1. a sensor device of measuring flow velocity, it is characterized in that: comprise cylinder (2), be arranged on the hemisphere face contact (1) of cylinder (2) front end, and be arranged in turn flow velocity differential pressure pickup (3) and middle contact (4) in cylinder (2).
2. a kind of sensor device of measuring flow velocity according to claim 1, is characterized in that: between flow velocity differential pressure pickup (3) and the inwall of cylinder (2), be tightly connected.
3. a kind of sensor device of measuring flow velocity according to claim 1, is characterized in that: between flow velocity differential pressure pickup (3) and middle contact (4), form static pressure chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320529062.2U CN203479823U (en) | 2013-08-26 | 2013-08-26 | Sensor apparatus for measuring flow velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320529062.2U CN203479823U (en) | 2013-08-26 | 2013-08-26 | Sensor apparatus for measuring flow velocity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479823U true CN203479823U (en) | 2014-03-12 |
Family
ID=50228132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320529062.2U Expired - Fee Related CN203479823U (en) | 2013-08-26 | 2013-08-26 | Sensor apparatus for measuring flow velocity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479823U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781194A (en) * | 2019-01-16 | 2019-05-21 | 河海大学 | A kind of streamlined pressure difference current surveying device |
| CN114235071A (en) * | 2021-12-29 | 2022-03-25 | 觉隆传感技术(深圳)有限公司 | Ultrasonic gas mass flow meter for natural gas pipeline network |
| CN114735231A (en) * | 2021-12-30 | 2022-07-12 | 中国人民解放军93184部队 | Flight data acquisition device |
-
2013
- 2013-08-26 CN CN201320529062.2U patent/CN203479823U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781194A (en) * | 2019-01-16 | 2019-05-21 | 河海大学 | A kind of streamlined pressure difference current surveying device |
| CN114235071A (en) * | 2021-12-29 | 2022-03-25 | 觉隆传感技术(深圳)有限公司 | Ultrasonic gas mass flow meter for natural gas pipeline network |
| CN114735231A (en) * | 2021-12-30 | 2022-07-12 | 中国人民解放军93184部队 | Flight data acquisition device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20150826 |
|
| EXPY | Termination of patent right or utility model |