CN103424571A - Five-hole wind speed probe calibrating experiment table - Google Patents
Five-hole wind speed probe calibrating experiment table Download PDFInfo
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- CN103424571A CN103424571A CN2013103752975A CN201310375297A CN103424571A CN 103424571 A CN103424571 A CN 103424571A CN 2013103752975 A CN2013103752975 A CN 2013103752975A CN 201310375297 A CN201310375297 A CN 201310375297A CN 103424571 A CN103424571 A CN 103424571A
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Abstract
The invention discloses a five-hole wind speed probe calibrating experiment table. Two round steel pipes with the same size are vertically fixed on the two sides of the upper surface of a rectangular steel plate. The two round steel pipes are connected with one end of two sliding bearing seats in a sliding mode respectively and fixed. Two identical suspension rods and a base plate form a U-shaped steel suspension basket. The upper ends of the two suspension rods are fixed on the other ends of the respective sliding bearing seats respectively through two bolts and connected with the other ends of the sliding bearing seats to form a swinging mechanism. A round sinking pit is formed at the center of the base plate of the U-shaped steel suspension basket and a round revolving disc is arranged in the round sinking pit through a bearing. The round revolving disc is provided with a T-shaped groove on which a five-hole wind speed probe is installed. The blown portion of the five-hole wind speed probe is located at the intersection point of the swinging axis of the U-shaped steel suspension basket and the revolving axis of the round revolving disc. According to the five-hole wind speed probe calibrating experiment table, the side sliding angle and the pitching angle of the five-hole wind speed probe can be fast and accurately adjusted, the position of the blown portion of the five-hole wind speed probe in an calibrating wind field can be kept and the wind speed can be kept constant. The calibrating precision and the calibrating efficiency of the five-hole wind speed probe are greatly improved.
Description
Technical field
The present invention relates to the test unit of Wind Engineering technical field of measurement and test, especially relate to a kind of five hole wind speed probe correction experiment tablees.
Background technology
Five hole wind speed probes are important means of testing complex dimensional wind wind speed scalar and vector, because its measuring accuracy is high, with low cost, are used widely.Before using, must be calibrated by five hole wind speed probes, so-called calibration is placed on five hole wind speed probes in the uniform flow field of known wind speed and direction exactly, measure the pressure of five pressure taps of five-hole probe when different wind speed, different yaw angle and pitch angle, draw out the calibration curves such as angular characteristics curve, dynamic pressure performance curve, stagnation pressure characteristic curve, Static compression performance curve.When the complex three-dimensional wind field is tested, just can be by the pressure of five pressure taps of the test of method of rotation not, then inquire about calibration curve and obtain dimensional wind wind speed scalar and vector.
Because five hole wind speed probe correction workloads are very large, the accuracy requirement that probe is installed is very high, regrettably the most domestic wind tunnel laboratory does not all have a set of device that probe energy accurate adjustment yaw angle and pitch angle can be installed more neatly at present, has a strong impact on calibration accuracy and the calibration efficiency of five-hole probe.
Summary of the invention
The object of the present invention is to provide a kind of five hole wind speed probe correction experiment tablees, can greatly improve the precision of five-hole probe install and adjust yaw angle and pitch angle, promote the efficiency of five hole wind speed probe corrections, for the research and development of five-hole probe with apply and lay the foundation.
The technical solution adopted for the present invention to solve the technical problems is:
The lower end of two measure-alike round steel pipe of the present invention is vertically fixed on the both sides of rectangular steel plates upper surface, upper end two round steel pipe is slidably connected and fixes with an end of plain bearing housing respectively, the lower end symmetry of two measure-alike suspension rods is fixed on the both sides of base plate center upper surface, two suspension rods and base plate form U-shaped steel hanging basket, two suspension rod upper ends are bolted on respectively the other end of plain bearing housing separately and form tilting mechanism, the base plate center of U-shaped steel hanging basket arranges circular heavy hole, the peripheral plate upper surface in circular heavy hole is carved with the round angle anale settting scale, on the bearing at circular Chen Keng center, round turntable is housed, the round turntable center has the T-slot perpendicular with U-shaped steel hanging basket axis of oscillation, the bottom, long limit of L shaped five hole wind speed probes is arranged in T-slot, adjust the position, long limit of L shaped five hole wind speed probes, the minor face end face of L shaped five hole wind speed probes is positioned on the round turntable pivot center, the long limit of five hole wind speed probes is fixed in T-slot.
Described round turntable upper surface flushes with the plate upper surface of U-shaped steel hanging basket, and base plate one middle part, side of U-shaped steel hanging basket has screw, and the screw rod that fixedly round turntable rotates is housed in screw.
The minor face end face of described L shaped five hole wind speed probes is centered close on described U-shaped steel hanging basket axis of oscillation.
Described round turntable circumference is carved with an angle index line, and an angle index line can be indicated on any scale of round angle anale settting scale.
The base plate both sides of described U-shaped steel hanging basket are separately installed with the inclinator that can show U-shaped steel hanging basket pendulum angle.
The invention has the beneficial effects as follows:
The present invention can fast accurately regulate yaw angle and the pitch angle of five-hole probe, and keeps the position assurance wind speed of five hole wind speed probe wind-engaging sections in the calibration wind field constant.This device can improve calibration accuracy and the efficiency of five hole wind speed probes greatly.
The accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is vertical view of the present invention.
Fig. 3 is side view of the present invention.
Fig. 4 is A-A sectional view of the present invention.
Fig. 5 is B-B sectional view of the present invention.
Fig. 6 is the A-A sectional view of the embodiment of the present invention.
Fig. 7 is the B-B sectional view of the embodiment of the present invention.
In figure: 1, round steel pipe, 2, rectangular steel plates, 3, plain bearing housing, 4, suspension rod, 5, base plate, 6, U-shaped steel hanging basket, 7, bolt, 8, bearing, 9, round turntable, 10, T-slot, 11, five hole wind speed probes, 12, screw rod, 13, angle scale, 14, inclinator, 15, calibration wind tunnel, 16, angle index line, 17, pressure tube, 18, electric pressure scaner.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, the lower end of two measure-alike round steel pipe 1 of the present invention is vertically fixed on the both sides of rectangular steel plates 2 upper surfaces, upper end two round steel pipe 1 is slidably connected and fixes with an end of plain bearing housing 3 respectively, the lower end symmetry of two measure-alike triangle suspension rods 4 is fixed on the both sides of base plate 5 center upper surface, two triangle suspension rods 4 form U-shaped steel hanging basket 6 with base plate 5, two triangle suspension rod 4 upper ends are fixed on the other end of plain bearing housing 3 separately by bolt 7 respectively and form tilting mechanism, base plate 5 centers of U-shaped steel hanging basket 6 arrange circular heavy hole, base plate 5 upper surfaces of circular heavy hole round edge are carved with round angle anale settting scale 13, on the bearing 8 at circular Chen Keng center, round turntable 9 is housed, round turntable 9 centers have the T-slot 10 perpendicular with U-shaped steel hanging basket 6 axiss of oscillation, the bottom, long limit of L shaped five hole wind speed probes 11 is arranged in T-slot 10, adjust the position, long limit of L shaped five hole wind speed probes 11, the minor face end face of L shaped five hole wind speed probes 11 is positioned on round turntable 9 pivot centers, the long limit of five hole wind speed probes 11 is fixed in T-slot 10, five pressure taps of the minor face end face of L shaped five hole wind speed probes 11 are connected with electric pressure scaner 18 by pressure tube 17.
The minor face end face of described L shaped five hole wind speed probes 11 is centered close on described U-shaped steel hanging basket 6 axiss of oscillation.
Described round turntable 9 circumference are carved with 16, one angle index lines 16 of an angle index line can indicate on any scale of round angle anale settting scale 13.
Embodiment:
The calibration experiments of certain five hole wind speed probe of now take illustrates the using method of this device as example.
As shown in Figure 6, Figure 7, at first five hole wind speed probe correction experiment tablees are positioned over to calibration wind tunnel 15 air outlet places, by adjusting the height of two plain bearing housings 3, make the air flow energy of calibration wind tunnel 15 by U-shaped steel hanging basket 6, and guarantee that the intersection point of two bolt 7 axis and round turntable 9 axis is positioned on the axis of calibration wind tunnel 15 outlets.Five hole wind speed probes 11 to be calibrated are installed on T-slot 10, and five hole wind speed probe 11 minor face end faces are positioned on described U-shaped steel hanging basket 6 axiss of oscillation.Unclamp screw rod 12, by viewing angle scale 13, regulate round turntable 9, the yaw angle of five hole wind speed probes 11 is transferred to specified angle, tighten screw rod 12; Unclamp two bolts 7, by observing the mean value of two inclinator 14 readings, swing U-shaped steel hanging basket 6 pitch angle of five hole wind speed probes 11 is transferred to specified angle, tighten two bolts 7.Open calibration wind tunnel 15, adopt electric pressure scaner 18 to measure five hole wind speed probes at the blast of specifying each pressure tap under yaw angle and pitch angle, tested and calculated by the outlet wind speed that changes calibration wind tunnel 15, yaw angle and the pitch angle of five hole wind speed probes 11, can be obtained needed calibration curve.
Above-mentioned embodiment is used for illustrating the present invention, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modifications and changes that the present invention is made, all fall into protection scope of the present invention.
Claims (5)
1. five hole wind speed probe correction experiment tablees, it is characterized in that: the lower end of two measure-alike round steel pipe (1) is vertically fixed on the both sides of rectangular steel plates (2) upper surface, upper end in two round steel pipe (1) is slidably connected and fixes with an end of plain bearing housing (3) respectively, the lower end symmetry of two measure-alike suspension rods (4) is fixed on the both sides of base plate (5) center upper surface, two suspension rods (4) form U-shaped steel hanging basket (6) with base plate (5), two suspension rods (4) upper end is fixed on the other end of plain bearing housing (3) separately by bolt (7) respectively and forms tilting mechanism, base plate (5) center of U-shaped steel hanging basket (6) arranges circular heavy hole, peripheral base plate (5) upper surface in circular heavy hole is carved with round angle anale settting scale (13), on the bearing (8) at circular Chen Keng center, round turntable (9) is housed, round turntable (9) center has the T-slot (10) perpendicular with U-shaped steel hanging basket (6) axis of oscillation, the bottom, long limit of L shaped five hole wind speed probes (11) is arranged in T-slot (10), adjust the position, long limit of L shaped five hole wind speed probes (11), the minor face end face of L shaped five hole wind speed probes (11) is positioned on round turntable (9) pivot center, the long limit of five hole wind speed probes (11) is fixed in T-slot (10).
2. five hole wind speed probe correction experiment tablees according to claim 1, it is characterized in that: base plate (5) upper surface flush of described round turntable (9) upper surface and U-shaped steel hanging basket (6), base plate (5) one middle parts, side of U-shaped steel hanging basket (6) have screw, and the screw rod (12) that fixedly round turntable (9) rotates is housed in screw.
3. five hole wind speed probe correction experiment tablees according to claim 1, it is characterized in that: the minor face end face of described L shaped five hole wind speed probes (11) is centered close on described U-shaped steel hanging basket (6) axis of oscillation.
4. five hole wind speed probe correction experiment tablees according to claim 1, it is characterized in that: described round turntable (9) circumference is carved with an angle index line (16), and an angle index line (16) can be indicated on any scale of round angle anale settting scale (13).
5. five hole wind speed probe correction experiment tablees according to claim 1, it is characterized in that: base plate (5) both sides of described U-shaped steel hanging basket (6) are separately installed with the inclinator (14) that can show U-shaped steel hanging basket (6) pendulum angle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310375297.5A CN103424571B (en) | 2013-08-26 | 2013-08-26 | Five-hole wind speed probe calibrating experiment table |
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| CN201310375297.5A CN103424571B (en) | 2013-08-26 | 2013-08-26 | Five-hole wind speed probe calibrating experiment table |
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| CN103424571B CN103424571B (en) | 2015-04-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926035A (en) * | 2014-04-16 | 2014-07-16 | 湖南科技大学 | High-frequency and high-precision long-distance air pressure meter |
| CN104792493A (en) * | 2015-04-27 | 2015-07-22 | 中国航空工业集团公司沈阳飞机设计研究所 | Jet reflection velocity field test method |
| CN104806864A (en) * | 2015-04-23 | 2015-07-29 | 中国科学院长春光学精密机械与物理研究所 | Full-automatic rotary table leveling system |
| CN108562420A (en) * | 2017-12-26 | 2018-09-21 | 北京航天益森风洞工程技术有限公司 | A kind of automatic calibration system and method for porous probe |
| CN108593964A (en) * | 2018-03-22 | 2018-09-28 | 中国科学院工程热物理研究所 | A kind of scaling method of seven apertures in the human head air-flow probe |
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| CN201155971Y (en) * | 2007-12-10 | 2008-11-26 | 广西玉柴机器股份有限公司 | Horizontal obliquity measuring apparatus |
| US20080307853A1 (en) * | 2007-06-18 | 2008-12-18 | Thomas Siebers | Anemometer calibration method and wind turbine |
| CN103017707A (en) * | 2012-12-03 | 2013-04-03 | 河海大学 | Device and method for accurately measuring displacement |
| CN203443973U (en) * | 2013-08-26 | 2014-02-19 | 浙江大学 | Calibration experiment table for five-hole wind speed probe |
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2013
- 2013-08-26 CN CN201310375297.5A patent/CN103424571B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080307853A1 (en) * | 2007-06-18 | 2008-12-18 | Thomas Siebers | Anemometer calibration method and wind turbine |
| CN201155971Y (en) * | 2007-12-10 | 2008-11-26 | 广西玉柴机器股份有限公司 | Horizontal obliquity measuring apparatus |
| CN103017707A (en) * | 2012-12-03 | 2013-04-03 | 河海大学 | Device and method for accurately measuring displacement |
| CN203443973U (en) * | 2013-08-26 | 2014-02-19 | 浙江大学 | Calibration experiment table for five-hole wind speed probe |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926035A (en) * | 2014-04-16 | 2014-07-16 | 湖南科技大学 | High-frequency and high-precision long-distance air pressure meter |
| CN104806864A (en) * | 2015-04-23 | 2015-07-29 | 中国科学院长春光学精密机械与物理研究所 | Full-automatic rotary table leveling system |
| CN104792493A (en) * | 2015-04-27 | 2015-07-22 | 中国航空工业集团公司沈阳飞机设计研究所 | Jet reflection velocity field test method |
| CN104792493B (en) * | 2015-04-27 | 2017-09-29 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of jet flow reflects velocity field method of testing |
| CN108562420A (en) * | 2017-12-26 | 2018-09-21 | 北京航天益森风洞工程技术有限公司 | A kind of automatic calibration system and method for porous probe |
| CN108593964A (en) * | 2018-03-22 | 2018-09-28 | 中国科学院工程热物理研究所 | A kind of scaling method of seven apertures in the human head air-flow probe |
| CN108593964B (en) * | 2018-03-22 | 2020-04-21 | 中国科学院工程热物理研究所 | Calibration method of seven-hole airflow probe |
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