CN105527070A - Device for stabilizing atmospheric pressure for wind tunnel gauge pressure sensor and method for stabilizing air pressure - Google Patents
Device for stabilizing atmospheric pressure for wind tunnel gauge pressure sensor and method for stabilizing air pressure Download PDFInfo
- Publication number
- CN105527070A CN105527070A CN201510871322.8A CN201510871322A CN105527070A CN 105527070 A CN105527070 A CN 105527070A CN 201510871322 A CN201510871322 A CN 201510871322A CN 105527070 A CN105527070 A CN 105527070A
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- Prior art keywords
- pressure
- box container
- wind
- tunnel
- air
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/065—Measuring arrangements specially adapted for aerodynamic testing dealing with flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
Abstract
The invention provides a device for stabilizing the atmospheric pressure for a wind tunnel gauge pressure sensor and a method for stabilizing air pressure. In a wind tunnel test, a gauge pressure sensor is usually used for measuring pressures of measurement points of designate positions; the ambient atmosphere pressure of a testing site is commonly used by the gauge pressure sensor as a reference pressure, so when the ambient atmosphere pressure changes, the results of the pressure measured by the gauge pressure sensor will be directly influenced therefore. The device comprises a box body container, wherein one side of the box body container is provided with a set of piezometer tube joints; tube head sealing gaskets are provided between the piezometer tube joints and the box body container; the upper part of the box body container is provided with an air filling and deflating hole; the air filling and deflating hole matches with a sealing ring; the upper part of the sealing ring is equipped with an electromagnetic switch valve; the other side of the box body container is equipped with a sealing plug; a plug sealing gasket is arranged between the sealing plug and the box body container. The device and method provided by the invention are used for stabilizing air pressure.
Description
technical field:
the present invention relates to a kind of wind-tunnel gauge pressure transducer and stablize atmospheric device and stable gas pressure means.
background technology:
usually use gauge pressure transducer to complete the pressure survey of assigned address measurement point (as wind-tunnel stagnation pressure, static pressure and model surface pressure) when wind tunnel test.Because the ambient atmosphere pressure at the general service test scene of gauge pressure transducer is as reference pressure, therefore, when environment atmospheric pressure changes (as rushed the reason of formula trisonic wind tunnel sealing temporarily, in wind-tunnel flyoff process, larger change may be there is in the ambient atmosphere pressure of testing ground), will directly affect the measurement result of gauge pressure transducer to pressure.
summary of the invention:
the object of this invention is to provide a kind of wind-tunnel gauge pressure transducer and stablize atmospheric device and stable gas pressure means.
above-mentioned object is realized by following technical scheme:
a kind of wind-tunnel gauge pressure transducer stablizes atmospheric device, its composition comprises: box container, one group of piezometer tube joint is equipped with in described box container side, tube head sealing gasket is housed between described piezometer tube joint and described box container, described box container top is provided with air filling and exhausting hole, described air filling and exhausting hole coordinates with O-ring seal, electromagnetic switch valve is equipped with on described O-ring seal top, described box container opposite side is equipped with pressure terminal, and spigot seal pad is housed between described pressure terminal and described box container.
described wind-tunnel gauge pressure transducer stablizes atmospheric device, described box container side is provided with one group of tube head socket, described tube head socket coordinates with described piezometer tube joint, described box container opposite side is provided with plug and socket, and described plug and socket and described pressure terminal coordinate; Described piezometer tube joint is connected with pressure transducer by piezometric tube.
described wind-tunnel gauge pressure transducer stablizes the stable gas pressure means of atmospheric device, during use, the pressure transducer used in wind tunnel test is received piezometer tube joint by pressure measurement flexible pipe, box container inside put into by pressure unit, and its cable is by the pressure terminal of right flank and the connection of external device; When state do not dried by wind-tunnel, electromagnetic switch valve is often opened, and extraneous air exchanges by the air filling and exhausting hole of box container end face and the air of box container inside, and now the pressure of box container inside equals ambient atmosphere pressure; Before wind-tunnel flyoff, electromagnetic switch valve is closed, and box container inside is closed container, and pressure is the environment atmospheric pressure of the front testing ground of blowing test; In wind-tunnel flyoff process, because box container inside is closed container, the change of ambient atmosphere pressure does not affect the pressure of box container inside, and therefore the pressure of box container inside remains ambient atmosphere pressure, can be the reference pressure that gauge pressure transducer provides stable; After wind-tunnel flyoff terminates, electromagnetic switch valve is opened, and extraneous air carries out pressure equilibrium by the air in the air filling and exhausting hole of box container end face and box container.
beneficial effect:
1. when the present invention uses, the pressure transducer used in wind tunnel test is received piezometer tube joint by pressure measurement flexible pipe, box container inside put into by pressure unit, and its cable is by the pressure terminal of right flank and the connection of external device; When state do not dried by wind-tunnel, electromagnetic switch valve is often opened, and extraneous air exchanges by the air filling and exhausting hole of box container end face and the air of box container inside, and now the pressure of box container inside equals ambient atmosphere pressure; Before wind-tunnel flyoff, electromagnetic switch valve is closed, and box container inside is closed container, and pressure is the environment atmospheric pressure of the front testing ground of blowing test; In wind-tunnel flyoff process, because box container inside is closed container, the change of ambient atmosphere pressure does not affect the pressure of box container inside, and therefore the pressure of box container inside remains ambient atmosphere pressure, can be the reference pressure that gauge pressure transducer provides stable; After wind-tunnel flyoff terminates, electromagnetic switch valve is opened, and extraneous air carries out pressure equilibrium by the air in the air filling and exhausting hole of box container end face and box container.
the mode that the present invention adopts box container to seal maintains the testing ground environment atmospheric pressure before wind-tunnel flyoff, in wind tunnel test process, gauge pressure transducer provides reliable reference pressure.And before wind-tunnel flyoff and after wind-tunnel flyoff terminates, the technological approaches of pressure and testing ground environment atmospheric pressure in self-poise box container.Solve the impact of the change effects on surface sensor measurement testing site environment atmospheric pressure in wind tunnel test process.And the parts of technical solution of the present invention are few, version is simple, solve when environment atmospheric pressure changes (as rushed the reason of formula trisonic wind tunnel sealing temporarily, in wind-tunnel flyoff process, may be there is larger change in the ambient atmosphere pressure of testing ground), on the impact of gauge pressure transducer pressure measurements, improve precision and the accuracy of this device measuring result.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present invention.
embodiment:
embodiment 1:
a kind of wind-tunnel gauge pressure transducer stablizes atmospheric device, its composition comprises: box container 1, one group of piezometer tube joint 2 is equipped with in described box container side, tube head sealing gasket 3 is housed between described piezometer tube joint and described box container, described box container top is provided with air filling and exhausting hole 4, described air filling and exhausting hole coordinates with O-ring seal 5, electromagnetic switch valve 6 is equipped with on described O-ring seal top, described box container opposite side is equipped with pressure terminal 7, and spigot seal pad 8 is housed between described pressure terminal and described box container.
embodiment 2:
wind-tunnel gauge pressure transducer according to embodiment 1 stablizes atmospheric device, it is characterized in that: described box container side is provided with one group of tube head socket 9, described tube head socket coordinates with described piezometer tube joint, described box container opposite side is provided with plug and socket 10, and described plug and socket and described pressure terminal coordinate; Described piezometer tube joint is connected with pressure transducer 12 by piezometric tube 11.
embodiment 3:
a kind of stable gas pressure means utilizing the wind-tunnel gauge pressure transducer described in embodiment 1 or 2 to stablize atmospheric device, during use, the pressure transducer used in wind tunnel test is received piezometer tube joint by pressure measurement flexible pipe, box container inside put into by pressure unit, and its cable is by the pressure terminal of right flank and the connection of external device; When state do not dried by wind-tunnel, electromagnetic switch valve is often opened, and extraneous air exchanges by the air filling and exhausting hole of box container end face and the air of box container inside, and now the pressure of box container inside equals ambient atmosphere pressure; Before wind-tunnel flyoff, electromagnetic switch valve is closed, and box container inside is closed container, and pressure is the environment atmospheric pressure of the front testing ground of blowing test; In wind-tunnel flyoff process, because box container inside is closed container, the change of ambient atmosphere pressure does not affect the pressure of box container inside, and therefore the pressure of box container inside remains ambient atmosphere pressure, can be the reference pressure that gauge pressure transducer provides stable; After wind-tunnel flyoff terminates, electromagnetic switch valve is opened, and extraneous air carries out pressure equilibrium by the air in the air filling and exhausting hole of box container end face and box container.
Claims (3)
1. a wind-tunnel gauge pressure transducer stablizes atmospheric device, its composition comprises: box container, it is characterized in that: one group of piezometer tube joint is equipped with in described box container side, tube head sealing gasket is housed between described piezometer tube joint and described box container, described box container top is provided with air filling and exhausting hole, described air filling and exhausting hole coordinates with O-ring seal, electromagnetic switch valve is equipped with on described O-ring seal top, described box container opposite side is equipped with pressure terminal, and spigot seal pad is housed between described pressure terminal and described box container.
2. wind-tunnel gauge pressure transducer according to claim 1 stablizes atmospheric device, it is characterized in that: described box container side is provided with one group of tube head socket, described tube head socket coordinates with described piezometer tube joint, described box container opposite side is provided with plug and socket, and described plug and socket and described pressure terminal coordinate; Described piezometer tube joint is connected with pressure transducer by piezometric tube.
3. the stable gas pressure means utilizing the wind-tunnel gauge pressure transducer described in claim 1 or 2 to stablize atmospheric device, it is characterized in that: during use, the pressure transducer used in wind tunnel test is received piezometer tube joint by pressure measurement flexible pipe, box container inside put into by pressure unit, and its cable is by the pressure terminal of right flank and the connection of external device; When state do not dried by wind-tunnel, electromagnetic switch valve is often opened, and extraneous air exchanges by the air filling and exhausting hole of box container end face and the air of box container inside, and now the pressure of box container inside equals ambient atmosphere pressure; Before wind-tunnel flyoff, electromagnetic switch valve is closed, and box container inside is closed container, and pressure is the environment atmospheric pressure of the front testing ground of blowing test; In wind-tunnel flyoff process, because box container inside is closed container, the change of ambient atmosphere pressure does not affect the pressure of box container inside, and therefore the pressure of box container inside remains ambient atmosphere pressure, can be the reference pressure that gauge pressure transducer provides stable; After wind-tunnel flyoff terminates, electromagnetic switch valve is opened, and extraneous air carries out pressure equilibrium by the air in the air filling and exhausting hole of box container end face and box container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871322.8A CN105527070B (en) | 2015-12-02 | 2015-12-02 | The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871322.8A CN105527070B (en) | 2015-12-02 | 2015-12-02 | The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105527070A true CN105527070A (en) | 2016-04-27 |
| CN105527070B CN105527070B (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510871322.8A Active CN105527070B (en) | 2015-12-02 | 2015-12-02 | The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078873U (en) * | 1990-08-02 | 1991-06-12 | 任志刚 | Means for suppressing the interference of wind pressure |
| JPH07270266A (en) * | 1994-03-31 | 1995-10-20 | Tokyo Gas Co Ltd | Pressure regulating equipment in gas meter |
| CN1176693A (en) * | 1995-02-28 | 1998-03-18 | 罗斯蒙德公司 | Pressure sensors and pressure transmitters |
| CN201765083U (en) * | 2010-05-10 | 2011-03-16 | 江苏核电有限公司 | Atmosphere reference-point pressure tapping device |
| CN102141458A (en) * | 2010-12-28 | 2011-08-03 | 唐山轨道客车有限责任公司 | Seal interface airtightness test platform for high-speed trains |
| CN102353495A (en) * | 2011-06-23 | 2012-02-15 | 天津市泰菲特仪器仪表技术有限公司 | Pressure measurement device applied to environments with non-standard atmospheric pressure |
| CN102778332A (en) * | 2011-05-11 | 2012-11-14 | 中国科学院光电研究院 | Micro differential pressure generating and calibrating device |
| KR20140074720A (en) * | 2012-12-10 | 2014-06-18 | 주식회사 포스코 | Fluid bed furnace having complex structure gas distribution portion |
| CN203940940U (en) * | 2014-06-13 | 2014-11-12 | 江苏多维科技有限公司 | A kind of sensor chip for many physical quantities |
| CN205120336U (en) * | 2015-12-02 | 2016-03-30 | 中国航空工业集团公司沈阳空气动力研究所 | Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor |
-
2015
- 2015-12-02 CN CN201510871322.8A patent/CN105527070B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078873U (en) * | 1990-08-02 | 1991-06-12 | 任志刚 | Means for suppressing the interference of wind pressure |
| JPH07270266A (en) * | 1994-03-31 | 1995-10-20 | Tokyo Gas Co Ltd | Pressure regulating equipment in gas meter |
| CN1176693A (en) * | 1995-02-28 | 1998-03-18 | 罗斯蒙德公司 | Pressure sensors and pressure transmitters |
| CN201765083U (en) * | 2010-05-10 | 2011-03-16 | 江苏核电有限公司 | Atmosphere reference-point pressure tapping device |
| CN102141458A (en) * | 2010-12-28 | 2011-08-03 | 唐山轨道客车有限责任公司 | Seal interface airtightness test platform for high-speed trains |
| CN102778332A (en) * | 2011-05-11 | 2012-11-14 | 中国科学院光电研究院 | Micro differential pressure generating and calibrating device |
| CN102353495A (en) * | 2011-06-23 | 2012-02-15 | 天津市泰菲特仪器仪表技术有限公司 | Pressure measurement device applied to environments with non-standard atmospheric pressure |
| KR20140074720A (en) * | 2012-12-10 | 2014-06-18 | 주식회사 포스코 | Fluid bed furnace having complex structure gas distribution portion |
| CN203940940U (en) * | 2014-06-13 | 2014-11-12 | 江苏多维科技有限公司 | A kind of sensor chip for many physical quantities |
| CN205120336U (en) * | 2015-12-02 | 2016-03-30 | 中国航空工业集团公司沈阳空气动力研究所 | Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor |
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| CN105527070B (en) | 2018-01-16 |
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