CN205138756U - Wind -tunnel wind pressure monitoring pipe way frequency response correcting device - Google Patents
Wind -tunnel wind pressure monitoring pipe way frequency response correcting device Download PDFInfo
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- CN205138756U CN205138756U CN201520909620.7U CN201520909620U CN205138756U CN 205138756 U CN205138756 U CN 205138756U CN 201520909620 U CN201520909620 U CN 201520909620U CN 205138756 U CN205138756 U CN 205138756U
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- pressure
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- frequency response
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model discloses a wind -tunnel wind pressure monitoring pipe way frequency response correcting device, characterized by: including the synthetic function signal generator of digit, power amplifier, speaker, organic glass board, two pressure -measuring pipes and electronic pressure scanning valve, the digit synthetic function signal generator be connected with power amplifier, and power amplifier is connected with the speaker, and the horn mouth of speaker sets up facing to quick -witted glass board, and organic glass board center department is equipped with two pressure taps, and two pressure taps are connected with electronic pressure scanning valve through the pressure -measuring pipe respectively. The utility model discloses a surface pressure's of building structure rigid model accurate monitoring in the wind tunnel test room, pressure test provides convenience for the building structure wind engineering, the utility model discloses still have simple structure, with low costs, easy control and the high advantage of accuracy.
Description
Technical field
The utility model belongs to technical field of civil engineering, relates to a kind of wind-tunnel wind pressure monitoring pipeline frequency response correcting device specifically.
Background technology
Wind-tunnel wind pressure monitoring pipeline frequency response correcting device be a kind of utilize pressure measurement update the system to measure pressure measurement pipeline frequency response function and it is carried out to the servicing unit of pipeline correction.For accurate perception wind is to the effect of structure, generally need the rigid model manometric test carrying out building structure, and rigid model inevitably needs to adopt longer pressure measurement pipeline to connect in wind Tunnel Measuring Pressure Tests process between pressure tap to electric pressure scaner, obvious distortion can be there is in pressure signal after piping system, signal distortion inherently records pressure data accuracy to test and has an impact, so, need the frequency response function measuring pressure measurement pipeline by pressure measurement update the system line pipe road of going forward side by side to revise.Domestic engineering structure wind tunnel test to be started late, but research direction has perspective very much, want precise monitoring rigid mould face dynamic pressure, be necessary the signal distortion of research pipeline and carry out signal correction, and the research device of similar products at home and abroad is less, so exploitation the technology has the important and meaning of reality.
Summary of the invention
The utility model provides the wind-tunnel wind pressure monitoring pipeline frequency response correcting device that a kind of structure is simple, cost is low, and it can realize the precise monitoring of the surface pressing of building structure rigid model in wind1 tunnel laboratory.
The technical solution adopted in the utility model is: a kind of wind-tunnel wind pressure monitoring pipeline frequency response correcting device, include digit synthesis function signal generator, power amplifier, loudspeaker, poly (methyl methacrylate) plate, two piezometric tube and electric pressure scaner, digit synthesis function signal generator is connected with power amplifier, power amplifier is connected with loudspeaker, the hydraucone of loudspeaker is arranged facing to machine glass plate, poly (methyl methacrylate) plate center is provided with two pressure taps, and two pressure taps are connected with electric pressure scaner respectively by piezometric tube.
In above-mentioned wind-tunnel wind pressure monitoring pipeline frequency response correcting device, what described piezometric tube adopted is pvc pipe, and the length of two piezometric tube is different.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is by being arranged on one short one long two piezometric tube on pressure tap, pressure wave is passed on electronic scanner and obtain pressure, its short-and-medium piezometric tube is smooth and close with tested pipe system point position in low-frequency range frequency response, can think that short piezometric tube records signal and do not distort, and using this signal as standard signal, contrast obtains the frequency response function of tested pipeline, thus realizes the precise monitoring of the rigid mould face pressure of building structure in wind1 tunnel laboratory.The utility model structure is simple, and institute takes up space also little, and cost is low, and be easy to control and handled easily, principle of work is clear, and actual effect is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
As shown in Figure 1, the present embodiment comprises digit synthesis function signal generator 1, power amplifier 2, loudspeaker 3, poly (methyl methacrylate) plate 4, two piezometric tube 5A, 5B and electric pressure scaner 6, digit synthesis function signal generator 1 is connected with power amplifier 2, power amplifier 2 is connected with loudspeaker 3, the hydraucone of loudspeaker 3 is arranged facing to poly (methyl methacrylate) plate 4, the center of poly (methyl methacrylate) plate 4 is provided with two pressure taps, and two pressure taps are connected with electric pressure scaner 6 respectively by piezometric tube 5A or piezometric tube 5B.What described piezometric tube 5A, 5B adopted is pvc pipe, and piezometric tube 5B is longer than piezometric tube 5A, and piezometric tube 5B has 10,20,40,60,80,100,120,140,160mm totally 9 kinds of different lengths.
Digit synthesis function signal generator 1 produces the different wave such as sine wave, triangular wave signal, power amplifier 2 amplifies the signal that digital composite function signal generator 1 produces, the waveform signal amplified is sent to loudspeaker 3, make loudspeaker 3 send pressure wave signal, poly (methyl methacrylate) plate 4 is exerted pressure.Pressure wave reaches on electric pressure scaner 6 by piezometric tube 5A and piezometric tube 5B by 2 pressure taps of poly (methyl methacrylate) plate center, obtain pressure time-process, measure frequency response function and the character of frequency response curve of pressure measurement pipeline, carry out pipeline correction, obtain real pressure signal.
Claims (3)
1. a wind-tunnel wind pressure monitoring pipeline frequency response correcting device, it is characterized in that: include digit synthesis function signal generator, power amplifier, loudspeaker, poly (methyl methacrylate) plate, two piezometric tube and electric pressure scaner, digit synthesis function signal generator is connected with power amplifier, power amplifier is connected with loudspeaker, the hydraucone of loudspeaker is arranged facing to machine glass plate, poly (methyl methacrylate) plate center is provided with two pressure taps, and two pressure taps are connected with electric pressure scaner respectively by piezometric tube.
2. wind-tunnel wind pressure monitoring pipeline frequency response correcting device according to claim 1, is characterized in that: what described piezometric tube adopted is pvc pipe, and the length of two piezometric tube is different.
3. wind-tunnel wind pressure monitoring pipeline frequency response correcting device according to claim 2, is characterized in that: the length of piezometric tube longer in two piezometric tube is 10,20,40,60,80,100,120,140 or 160mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520909620.7U CN205138756U (en) | 2015-11-16 | 2015-11-16 | Wind -tunnel wind pressure monitoring pipe way frequency response correcting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520909620.7U CN205138756U (en) | 2015-11-16 | 2015-11-16 | Wind -tunnel wind pressure monitoring pipe way frequency response correcting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205138756U true CN205138756U (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520909620.7U Expired - Fee Related CN205138756U (en) | 2015-11-16 | 2015-11-16 | Wind -tunnel wind pressure monitoring pipe way frequency response correcting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205138756U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091725A (en) * | 2016-12-26 | 2017-08-25 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of measuring method for improving wind tunnel pressure measuring test pressure scan data precision |
| CN109900451A (en) * | 2019-03-13 | 2019-06-18 | 广州大学 | The method for correcting the distortion of wind tunnel experiment pressure measuring model wind pressure signal |
| CN109946039A (en) * | 2019-03-13 | 2019-06-28 | 广州大学 | The volume measuring method and volume measuring system of pressure scanning valve |
| CN112197935A (en) * | 2020-10-19 | 2021-01-08 | 重庆大学 | Method for acquiring frequency response value at any frequency under any pipe length, pressure measuring pipeline correcting method and storage medium |
-
2015
- 2015-11-16 CN CN201520909620.7U patent/CN205138756U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091725A (en) * | 2016-12-26 | 2017-08-25 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of measuring method for improving wind tunnel pressure measuring test pressure scan data precision |
| CN109900451A (en) * | 2019-03-13 | 2019-06-18 | 广州大学 | The method for correcting the distortion of wind tunnel experiment pressure measuring model wind pressure signal |
| CN109946039A (en) * | 2019-03-13 | 2019-06-28 | 广州大学 | The volume measuring method and volume measuring system of pressure scanning valve |
| CN109900451B (en) * | 2019-03-13 | 2020-12-01 | 广州大学 | Method for correcting wind pressure signal distortion of wind tunnel experiment pressure measurement model |
| CN112197935A (en) * | 2020-10-19 | 2021-01-08 | 重庆大学 | Method for acquiring frequency response value at any frequency under any pipe length, pressure measuring pipeline correcting method and storage medium |
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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 |
Granted publication date: 20160406 Termination date: 20181116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |