CN205120336U - Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor - Google Patents
Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor Download PDFInfo
- Publication number
- CN205120336U CN205120336U CN201520985653.XU CN201520985653U CN205120336U CN 205120336 U CN205120336 U CN 205120336U CN 201520985653 U CN201520985653 U CN 201520985653U CN 205120336 U CN205120336 U CN 205120336U
- Authority
- CN
- China
- Prior art keywords
- box container
- pressure
- wind
- gauge pressure
- tunnel
- 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.)
- Expired - Fee Related
Links
Abstract
(B, ) device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor. Usually, the gauge pressure sensor use the gauge pressure sensor to accomplish the ressure measurement that appointed position survey of fire hole is ordered when the wind tunnel test, owing to generally using testing site's ambient atmosphere to press as reference pressure, when environment atmospheric pressure changes, with the measuring result of direct influence gauge pressure sensor to pressure. The utility model discloses the constitution includes: box container (b) (b) 1 (b) (b), box container one side be equipped with a set of pressure -measuring pipe and connect (b) (b) 2 (b) (b), the pressure -measuring pipe connect with the box container between sealed fill up (b) (b) 3 (b) (the b) of tube head be equipped with, box container upper portion be provided with and fill air vent (b) (b) 4 (b) (b), fill the cooperation of air vent and sealing washer (b) (b) 5 (b) (b), sealing washer upper portion electromagnetic switch valve (b) (b) 6 (b) (b) is equipped with, box container opposite side sealed plug (b) (b) 7 (b) (b) is equipped with, sealed plug with the box container between sealed fill up (b) (b) 8 (b) (the b) of plug be equipped with. The utility model is used for stabilize atmospheric pressure. (B, )
Description
technical field:
the utility model relates to a kind of wind-tunnel gauge pressure transducer and stablizes atmospheric device.
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.
utility model content:
the purpose of this utility model is to provide a kind of wind-tunnel gauge pressure transducer and stablizes atmospheric device.
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.
beneficial effect:
1. when the utility model 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.
testing ground environment atmospheric pressure before the utility model adopts the mode of box container sealing to maintain 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 solutions of the utility model 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 utility model.
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.
Claims (2)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520985653.XU CN205120336U (en) | 2015-12-02 | 2015-12-02 | Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520985653.XU CN205120336U (en) | 2015-12-02 | 2015-12-02 | Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205120336U true CN205120336U (en) | 2016-03-30 |
Family
ID=55575932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520985653.XU Expired - Fee Related CN205120336U (en) | 2015-12-02 | 2015-12-02 | Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205120336U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527070A (en) * | 2015-12-02 | 2016-04-27 | 中国航空工业集团公司沈阳空气动力研究所 | Device for stabilizing atmospheric pressure for wind tunnel gauge pressure sensor and method for stabilizing air pressure |
| CN112945512A (en) * | 2021-02-24 | 2021-06-11 | 中国空气动力研究与发展中心空天技术研究所 | Double-seal ring axial fixing method of small polished rod sensor for high enthalpy pulse wind tunnel |
-
2015
- 2015-12-02 CN CN201520985653.XU patent/CN205120336U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527070A (en) * | 2015-12-02 | 2016-04-27 | 中国航空工业集团公司沈阳空气动力研究所 | Device for stabilizing atmospheric pressure for wind tunnel gauge pressure sensor and method for stabilizing air pressure |
| CN105527070B (en) * | 2015-12-02 | 2018-01-16 | 中国航空工业集团公司沈阳空气动力研究所 | The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer |
| CN112945512A (en) * | 2021-02-24 | 2021-06-11 | 中国空气动力研究与发展中心空天技术研究所 | Double-seal ring axial fixing method of small polished rod sensor for high enthalpy pulse wind tunnel |
| CN112945512B (en) * | 2021-02-24 | 2023-08-18 | 中国空气动力研究与发展中心空天技术研究所 | Double-sealing-ring axial fixing method of small polish rod sensor for high enthalpy pulse wind tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203745010U (en) | Integrated temperature and pressure vortex flow meter | |
| CN205120336U (en) | Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor | |
| CN203519233U (en) | Balanced type diaphragm sealed pressure transmitter | |
| CN105241616A (en) | Civil defense door airtightness detection apparatus with protection function | |
| CN107782537A (en) | A kind of vacuum Systems for optical inspection | |
| CN203824702U (en) | Calibration device for pressure transmitter | |
| CN205785703U (en) | A kind of method of cumulative scale leak detection system | |
| CN105527070A (en) | Device for stabilizing atmospheric pressure for wind tunnel gauge pressure sensor and method for stabilizing air pressure | |
| CN208313506U (en) | A kind of gas pressure sensor caliberating device | |
| CN205317397U (en) | Formula hart bus measuring instrument can be enlargied in piston response | |
| CN204964098U (en) | Backpressure formula pressure sensor | |
| CN211717461U (en) | Simple low-pressure environment test device | |
| CN105277322A (en) | Civil air defence door airtightness detection device | |
| CN205593693U (en) | Take compressed air to prevent flue gas pressure measuring equipment who blocks up | |
| CN104819801B (en) | A kind of fan blade pressure distribution dynamic measuring method | |
| CN209069492U (en) | A kind of cable pneumatic compression joint air pressure monitor tooling | |
| CN203490029U (en) | Sealing device for atmospheric pressure meter calibration | |
| CN209470827U (en) | A kind of device for detecting leak rate for low temperature multilead connector | |
| CN103257016B (en) | Portable positive and negative air pressure wireless remote measuring device | |
| CN203275023U (en) | Transformer vacuum measurement special-purpose tool | |
| CN215931166U (en) | Detection and calibration device of digital pressure gauge | |
| CN204439312U (en) | A kind of vacuum pipe vapour-pressure type survey instrument | |
| CN209181951U (en) | A kind of pressure sensor test device | |
| CN210533664U (en) | Quick detection device of gas tightness suitable for low-speed wind tunnel wind speed measurement system | |
| CN205317417U (en) | Multi -functional valve island of leakproofness tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20171202 |