CN101566516A - Portable multi-functional pressure checking wind tunnel - Google Patents
Portable multi-functional pressure checking wind tunnel Download PDFInfo
- Publication number
- CN101566516A CN101566516A CNA2009100841701A CN200910084170A CN101566516A CN 101566516 A CN101566516 A CN 101566516A CN A2009100841701 A CNA2009100841701 A CN A2009100841701A CN 200910084170 A CN200910084170 A CN 200910084170A CN 101566516 A CN101566516 A CN 101566516A
- Authority
- CN
- China
- Prior art keywords
- pressure
- wind tunnel
- checking
- portable multi
- checking wind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides a portable multi-functional pressure checking wind tunnel. Compared with the prior art, the pressure checking wind tunnel can conduct pressure checking to a relative pressure-type or absolute pressure-type steady pressure sensor or a dynamic pressure sensor within the range of minus 0.15MPa to 0.15MPa. Particularly, the problems of difficult pressure introduction and installation and the like of a microminiature pressure sensor in the calibrating process are well solved. In addition, by designing a lead wire seat (1), a pressure probe installation supporting rod (5) and a standard atmospheric pressure leading hole (12), the pressure checking wind tunnel can check four pressure sensors simultaneously, and has the capability of further expanding the checking channel.
Description
Technical field
The present invention relates to a kind of device that pressure transducer is carried out verification, it is a kind of portable multi-channel pressure checking wind tunnel that can carry out verification to the stable state and the dynamic pressure transducer of absolute pressure formula and relative pressure formula.
Background technology
In aviation turbomachine field, experiment is to carry out the requisite means of scientific research.In the experimental study of aviation turbomachine, often to use a large amount of pressure transducer (or pressure probe).In same experiment, these sensors will be measured absolute pressure, relative pressure, stable state and dynamic pressure respectively, so will use the pressure transducer of various functions.In addition, in experiment, often use some gas microminiature pressure transducers.For a long time, be loaded down with trivial details, a complicated and problem consuming time to the verification of pressure transducer, especially in calibration process, also exist pressure to introduce and install problems such as difficulty to gas microminiature pressure transducer.Therefore, people are also doing a large amount of work aspect the design pressure sensor calibration wind-tunnel.
Yet, when can't realizing the stable state of absolute pressure formula, relative pressure formula, dynamic pressure transducer, demarcates existing calibration equipment, also can't realize multichannel demarcation simultaneously, function singleness.In same experiment, often will use several correcting devices, and traditional correcting device can't carry out in batch calibration to pressure transducer.Especially, the problem that traditional pressure checking wind tunnel exists pressure to introduce and install difficulty in the calibration process of gas microminiature pressure transducer is not solved conscientiously.Also there is bulky and too heavy problem in the tradition pressure checking wind tunnel, also can bring inconvenience to the verification of pressure transducer.
Therefore, how from improving pressure transducer checking wind tunnel function singleness, bulky, and the pressure that exists in calibration process at gas microminiature pressure transducer is introduced and is installed problem such as difficulty and sets out, design and a kind ofly can carry out verification to absolute pressure transducer, relative pressure sensor, stable state and dynamic pressure transducer simultaneously, and can solve pressure that gas microminiature pressure transducer exists dexterously introduce and install the original intention that the portable multi-channel checking wind tunnel of problems such as difficulty becomes work of the present invention in calibration process.
Summary of the invention
Shortcoming at above-mentioned conventional pressure sensor checking wind tunnel exists the invention provides a kind of portable multifunctional pressure checking wind tunnel, and this checking wind tunnel mainly comprises:
(1) Mi Feng wind-tunnel cavity volume;
(2) pressure transducer power supply, signal insert seat;
(3) pressure gas sources (malleation and negative pressure can be provided) access port;
(4) four atmospheric pressure access ports;
(5) pressure transducer holder.
The cavity volume of wind-tunnel is made up of a cylinder and two nuts, and seal gasket is arranged at the bottom of nut, guarantees that the sealing of cavity volume is good.A nut communicates with pressure gas source by adapter, and another nut links to each other with the pressure transducer holder, and this nut has four sensor lead holes.The pressure transducer holder is a foursquare stock, and all there are two fixing hoops each side, once can fix four pressure transducers simultaneously, and has the ability that further expands.
When the pressure gas source access port added pressure (malleation or secondary the pressure), the wind-tunnel cavity volume of sealing played the effect of a voltage stabilizing, reduces the error of verification.If desired a plurality of relative pressure sensors are carried out verification, then four sensors are fixed on the holder, four atmospheric pressure access port one ends communicate with atmosphere, the other end then links to each other with four relative pressure sensors respectively, and good seal, and another pressure experience hole of relative pressure sensor communicates with the wind-tunnel cavity volume, by regulating the pressure of source of the gas access port, can carry out verification to four relative pressure sensors simultaneously.If also need absolute pressure transducer is carried out verification, then four atmospheric pressure access ports are linked to each other in twos, good seal, then four absolute pressure transducers are fixed on the holder, with the wind-tunnel good seal, the pressure experience hole is communicated with the wind-tunnel cavity volume,, can carry out verification to four absolute pressure transducers simultaneously by regulating the pressure of source of the gas access port.
Description of drawings
Fig. 1 is the sectional view of portable multi-functional pressure checking wind tunnel
Fig. 2 is the section left view of portable multi-functional pressure checking wind tunnel
Embodiment
According to the method for designing of above-mentioned pressure checking wind tunnel, shown in Figure of description 1, the specific embodiment of the present invention is described.
Parts (7) are cylinder, and for convenience that flexible pipe is installed with voltage regulation result is preferably arranged, the diameter of cylinder is selected 100-150mm, and the length of cylinder is selected 200-300mm, and wall thickness selects 3mm.(12) be four atmospheric pressure access tubes, and be installed on the cylindrical wall that the external diameter of atmospheric pressure access tube is that φ 6mm, internal diameter are φ 3mm.
Pressure transducer holder (5) is installed on the bottom of nut (2), four sides of pressure transducer holder (5) are fixed four pressure transducers (4) respectively, sensor is fixing with clip (11), (6) be the pressure experience portion of pressure transducer, (3) be the lead-in wire of pressure transducer, (1) be the wire holder of pressure transducer, wire holder is made up of screw and rubber cushion.Pressure transducer holder (5) has the ability that further expands, and such as adopting six posts, then can fix six pressure transducers simultaneously.The bottom of nut (2) is stained with seal gasket (13), guarantees the sealing of wind-tunnel cavity volume.
The adapter of gas source interface (9) communicates with the wind-tunnel cavity volume by nut (8).When another termination flexible pipe of adapter (9), lock the flexible pipe that links to each other with adapter (9) with sealing check nut (10).The bottom of nut (8) is stained with seal gasket (13), guarantees the sealing of wind-tunnel cavity volume.
To shown in Figure of description 1, assemble with upper-part, can carry out concrete verification pressure transducer.The pressure gas source access port is squeezed into pressure (malleation or negative pressure), and the wind-tunnel cavity volume of sealing plays the effect of a voltage stabilizing, reduces error.If desired a plurality of relative pressure sensors are carried out verification, then four atmospheric pressure access port one ends communicate with atmosphere.If also need absolute pressure transducer is carried out verification, then four atmospheric pressure access ports are linked to each other in twos with flexible pipe, good seal can carry out verification.Verification to stable state and dynamic pressure transducer also is same reason.This portable multi-functional pressure checking wind tunnel has solved the problem that difficulty was introduced and installed to pressure that conventional pressure sensor checking wind tunnel function singleness and gas microminiature pressure transducer exist well in calibration process; Simultaneously, this checking wind tunnel possesses the ability that the verification passage further expands.
Claims (1)
1, a kind of portable multi-functional pressure checking wind tunnel can be in-0.15～0.15MPa scope carries out pressure checking to relative pressure formula or absolute pressure formula steady state pressure sensor or dynamic pressure transducer.It is characterized in that this checking wind tunnel comprises: probe power inserts and signal output interface (1), voltage stabilizing cavity volume (forming by 2,7,8), the holder (5) that four sensors can be installed simultaneously, a source of the gas access port (9) and four normal atmosphere access ports (12).Probe power inserts the ability that all has further passage expansion with signal output interface (1), sensor holder (5) and standard atmospheric pressure access port (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100841701A CN101566516A (en) | 2009-05-21 | 2009-05-21 | Portable multi-functional pressure checking wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100841701A CN101566516A (en) | 2009-05-21 | 2009-05-21 | Portable multi-functional pressure checking wind tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101566516A true CN101566516A (en) | 2009-10-28 |
Family
ID=41282781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100841701A Pending CN101566516A (en) | 2009-05-21 | 2009-05-21 | Portable multi-functional pressure checking wind tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101566516A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832851A (en) * | 2010-05-31 | 2010-09-15 | 中国航空工业空气动力研究院 | Air flotation force measuring device of wind tunnel model |
| CN104950083A (en) * | 2015-06-28 | 2015-09-30 | 哈尔滨东方报警设备开发有限公司 | Simple gas detector calibration nozzle |
| CN104977123A (en) * | 2015-04-22 | 2015-10-14 | 中国航天空气动力技术研究院 | Differential pressure type pulse pressure sensor calibration device |
| CN105353090A (en) * | 2015-11-30 | 2016-02-24 | 无锡拓能自动化科技有限公司 | Gas sensor calibration container capable of being sealed |
| CN112254877A (en) * | 2020-09-03 | 2021-01-22 | 河南牛帕力学工程研究院 | Calibrating device of building element testing machine |
| CN113008508A (en) * | 2021-04-30 | 2021-06-22 | 华中科技大学 | Wind tunnel device for prolonging running time of hypersonic velocity temporary impulse type wind tunnel |
-
2009
- 2009-05-21 CN CNA2009100841701A patent/CN101566516A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832851A (en) * | 2010-05-31 | 2010-09-15 | 中国航空工业空气动力研究院 | Air flotation force measuring device of wind tunnel model |
| CN101832851B (en) * | 2010-05-31 | 2012-05-30 | 中国航空工业空气动力研究院 | Air flotation force measuring device of wind tunnel model |
| CN104977123A (en) * | 2015-04-22 | 2015-10-14 | 中国航天空气动力技术研究院 | Differential pressure type pulse pressure sensor calibration device |
| CN104977123B (en) * | 2015-04-22 | 2017-12-22 | 中国航天空气动力技术研究院 | Differential pressure type oscillatory pressure pick-up calibrating installation |
| CN104950083A (en) * | 2015-06-28 | 2015-09-30 | 哈尔滨东方报警设备开发有限公司 | Simple gas detector calibration nozzle |
| CN105353090A (en) * | 2015-11-30 | 2016-02-24 | 无锡拓能自动化科技有限公司 | Gas sensor calibration container capable of being sealed |
| CN112254877A (en) * | 2020-09-03 | 2021-01-22 | 河南牛帕力学工程研究院 | Calibrating device of building element testing machine |
| CN113008508A (en) * | 2021-04-30 | 2021-06-22 | 华中科技大学 | Wind tunnel device for prolonging running time of hypersonic velocity temporary impulse type wind tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101566516A (en) | Portable multi-functional pressure checking wind tunnel | |
| US8925388B2 (en) | Pressure sensor having a cylindrical pressure measuring cell | |
| CN105223122B (en) | A kind of bolt-type core holding unit | |
| CN204254111U (en) | One rises clip gas kitchen pipe joint | |
| CN109404240B (en) | Air inlet structure of electric propulsion engine | |
| CN104180853B (en) | Mine country rock Multi-parameter coupling determinator | |
| CN213121019U (en) | Air tightness detection device for processing of groove pipe fitting | |
| CN104697710B (en) | A kind of pressure sensor calibrating device with graininess solid as medium | |
| CN107044874B (en) | Split non-pressure-bearing ultrasonic flowmeter probe mount pad | |
| CN203772245U (en) | Equipment for testing displacement of hydraulic valve core | |
| CN102607694B (en) | Packaging structure for T-shaped sensitive body vector hydrophone | |
| CN209673605U (en) | A kind of measuring device suitable for hypotonic special low permeability cores porosity | |
| CN1309284A (en) | Design method and equipment of built-in dual-venturi fluid measurer | |
| CN211206064U (en) | On-line spectrum testing device under deep coal rock triaxial stress and gas saturation condition | |
| CN207689084U (en) | A kind of car light air-leakage test air inlet gun | |
| CN209841626U (en) | Concrete permeability measuring and clamping device based on I-shaped sealing rubber sleeve | |
| CN113091974A (en) | Diaphragm chamber and system for shock wave measurement target quasi-static pressure calibration | |
| CN107255547B (en) | Dynamic pore water pressure gauge verification pressure cavity device and verification method | |
| CN110779666A (en) | Test bed for detecting air tightness of instrument | |
| CN205352630U (en) | Airtight and withstand voltage quick detection device of conformal transducer | |
| CN201053958Y (en) | Small sized resistivity sensor for super pure water device for lab | |
| CN105444874B (en) | A kind of sound intersity measurement calibrating installation and method | |
| CN201651287U (en) | Conical sealing ring | |
| CN211175837U (en) | SF6 air chamber is with aerifing and verifying attachment | |
| CN104977123B (en) | Differential pressure type oscillatory pressure pick-up calibrating installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091028 |