CN2127494Y - Dynamic tester for flexible spray pipe - Google Patents
Dynamic tester for flexible spray pipe Download PDFInfo
- Publication number
- CN2127494Y CN2127494Y CN 92214536 CN92214536U CN2127494Y CN 2127494 Y CN2127494 Y CN 2127494Y CN 92214536 CN92214536 CN 92214536 CN 92214536 U CN92214536 U CN 92214536U CN 2127494 Y CN2127494 Y CN 2127494Y
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- flexible joint
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- 239000007921 spray Substances 0.000 title abstract 3
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000013178 mathematical model Methods 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000012937 correction Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 10
- 230000010355 oscillation Effects 0.000 description 6
- 230000003321 amplification Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- NCGICGYLBXGBGN-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine;hydrochloride Chemical compound Cl.[N-]1OC(=N)C=[N+]1N1CCOCC1 NCGICGYLBXGBGN-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model relates to a flexible spray tube dynamic parameter measuring apparatu, the improvement that belongs to the motion parameter dynamic measurement system of current swing object, spray tube X direction both sides and Y are equipped with a photoelectric measuring head respectively to one side in measurement system, carry out motion parameter's signal according to unified clock control and draw, through enlargeing, after handling, send the computer to calculate according to certain mathematical model, and do real-time correction, can measure the three degree of freedom and six degree of freedom motion parameters of moving object respectively steadily and reliably, and can show measurement parameter, convenience of customers. The utility model discloses still can detect the dynamic characteristic of being surveyed the device. In addition, the test device can replace an engine jet pipe servo system detection unit to participate in the control loop work, and the rocket attitude control simulation test requirements are met.
Description
The utility model is a kind of flexible joint nozzle dynamic measuring instrument, belongs to the kinematic parameter dynamic measurement method of swing bodies and the improvement of measuring system.
90110242.3 Chinese patent discloses a kind of swing bodies movement parameter measurement method and measuring system, this system carries out non-cpntact measurement to the target graticule that it is arranged on the swing bodies respectively by five road CCD optical measuring heads in two photoelectric measuring heads, its measuring system adopts unified clock control and coupling to comprise amplification and binaryzation floating threshold treatment circuit, adopt variable measurement zero point simultaneously, the data of surveying are carried out computing by microcomputer by certain mathematical model, and calculated amount are carried out Real-time Error proofread and correct.This measuring system of forming by two photoelectric measuring heads, its weak point is: the three degree of freedom operational factor that only can record swing bodies, promptly around the angular displacement of two rotation of coordinate and true origin along Z to the displacement of the lines amount, thereby the movement parameter measurement of swing bodies had certain limitation.
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art and provides a kind of to making the flexible joint nozzle dynamic measuring instrument that space six degree of freedom swing bodies kinematic parameter is measured in real time.
The purpose of this utility model realizes by following measure: the directions X in swing bodies kinematic parameter dynamic measurement system also be provided with one be carved with two target graticule target plates 1 flexible joint nozzle 1 ' on, in limited distance on the other side, 2 road CCD optical measuring heads 4 are arranged
X3, 4
X4Be installed in a photoelectric measuring head 3 ' in.And with two relative transient motion variable quantities that extract flexible joint nozzle of target graticule, the output signal of photoelectric measuring head is sent microcomputer to carry out computing by certain mathematical model after amplifying, handling and error is proofreaied and correct in real time, switch circuit by one measuring system is carried out switching controls, finish the flexible joint nozzle three degree of freedom, the measurement of six-freedom degree kinematic parameter.
Description of drawings:
Fig. 1 the utility model structural perspective
Fig. 2 the utility model measuring principle figure
Fig. 3 the utility model structured flowchart
The utility model is compared prior art and is had following advantage:
1. this measuring system is provided with two photoelectric measuring heads at directions X, can measure the fortune of six-freedom degree Moving parameter, and precision improves.
2. switch by change-over switch, can measure the kinematic parameter of three degree of freedom kinematic parameter and six-freedom degree respectively, expanded the usable range of instrument, increased function.
3. the extraction circuit of measuring-signal has increased the anti-interference filtration circuit, and it is reliable and stable that system signal is extracted.
4. display system can show the six-freedom degree kinematic parameter, and is easy to use.
5. the measurement range of measuring system is big
Around X, Y-axis deflection angle measurement scope be:
αx、αy：0～±8°
Around Z axle deflection angle measurement scope be:
αz：0～±4°
Displacement of the lines measures weight range:
X、Y、Z：0～±10mm
Measuring accuracy is:
Δαx、Δαy≤±25″
Δαz≤±40″
ΔX、ΔY、ΔZ≤±0.3mm。
Elaborate below in conjunction with embodiment:
The utility model is the three-dimensional pivot angle that is used to measure the solid engines flexible joint nozzle, and the real-time embodiment of measuring of three-dimensional center of oscillation displacement parameter, as shown in Figure 3: seven road CCD optical measuring heads 4 that adopt synchronous working, with the terrestrial coordinate is benchmark, detection be arranged on jet pipe 1 ' target 1 on target graticule 2 around jet pipe X, Y, rotation of Z axle and center of oscillation are along X, Y, relative linear displacement amount during the Z-direction motion, processing through opto-electronic conversion and digital signal, send Microcomputer Calculation go out jet pipe 1 ' instantaneous pivot angle α x, α y, α z and center of oscillation are at X, Y, the displacement X of Z-direction, Y, Z, and be the measuring error of minimizing system, calculated amount is done the Real-time Error correction.Its measuring system is by 3 target plates, 3 photoelectric measuring heads 3, and electrical interconnecting station 6, s operation control platform 11 is formed.Adopting polycore cable to carry out signal between each part connects.
As shown in Figure 3: jet pipe 1 ' on 3 target plates 1 that are carved with 7 target graticules (2,2 ", 2 ") altogether are set, and 7 road relative with the target graticule respectively CCD optical measuring heads (4 are arranged
X1, 4
Z, 4
X2, 4
X3, 4
X4, 4
Y1, 4
Y2), each road CCD optical measurement head output signal gives each circuit-switched data microcomputer to carry out the six-freedom degree kinematic parameter by following computing formula through interface circuit 10 and calculates through amplification, treatment circuit (7,8) separately.
αx＝tg
－1｛｛ (X′1)/(F
1) 〔L
1＋X＋R（1－COSαz）＋（H－Z）tgαy－Rtg (αy)/2 tgαx〕－ (X′
2)/(F
2) 〔L
2＋X＋R（1－COSαz）＋（h－Z）tgαy－Rtg (αy)/2 tgαy〕｝／（H－h）｝......（1）
αy＝tg
－1｛｛ (Y′1)/(F5) 〔L
5＋Y＋R（1－COSαz）＋（H－Z）tgαx－Rtg (αx)/2 tgαx〕－ (Y′
2)/(F
3) 〔L
6＋Y＋R（1－COSαz）＋（h－Z）tgαx－Rtg (αx)/2 tgαx〕｝／（H－h）｝......（2）
αz＝SIN
－1｛｛Y＋（H－Z）tgαx－ (X′
3)/(F
3) 〔L
3－X－（H－Z）tgαy＋Rtg (αy)/2 tgαy〕｝1／RSecαx｝......（3）
Z＝ (Z′)/(F
7) ｛L
7＋X＋R（1－COSαy）＋Rz×SecαxSinαy－R（Secαz－1）－RzSinαxtgαz｝－Rz（Secαx－1）－RzSinαx（cosαy－1）＋RSinαy－Vtgαx......（4）
X＝ (Y′
1)/(F5) 〔L
5＋Y＋R（1－COSαz）＋（H－Z）tgαx－Rtg (αx)/2 tgαx〕－RSecαz×Secαy－（H－Z）tgαy......（5）
Y＝ (X′
1)/(F
4) 〔L
4＋X＋R（1－COSαz）＋（H－Z）tgαy－Rtg (αx)/2 tgαy〕－RSecαz×Secαx－（H－Z）tgαx......（6）
In the formula: X '
1, X '
2, X '
3, X '
4: measure for measuring system, resembling the planar survey value in graticule displacement perpendicular to X-direction;
Y '
1, Y '
2: measure for measuring system, resembling the planar survey value in graticule displacement perpendicular to Y direction;
Z ':, resembling the planar survey value along the graticule displacement of Z-direction for measuring system is measured;
F
1～F
2: be the focal length value of corresponding measurement light path;
R: be the distance of graticule apart from balance staff;
R
Z: be the vertical range of Z graticule apart from center of oscillation;
L
1～F
2: be the initial object distance value of corresponding measurement light path;
H, h: for vertical direction measuring head center to the center of oscillation distance;
α
X, α
Y, α
Z: be the pivot angle of jet pipe around X, Y, Z axle;
X, Y, Z: be the displacement of center of oscillation.
For avoiding the measuring system error, its measured value is carried out Real-time Error proofreaies and correct, record at last jet pipe 1 ' the kinematic parameter of instantaneous six degree of freedom be α x, α y, α z, X, Y, Z.
The utility model is not limited in the measurement to the exercise parameter of the six degree of freedom of swing bodies, also can also can the dynamic perfromance of tested device be detected by the measurement of a switching contactor to the three degree of freedom exercise parameter.In addition, also can replace engine nozzle servoing system detecting unit to participate in control loop work, satisfy the requirement of rocket attitude control l-G simulation test.
Claims (1)
1, a kind of by be arranged on flexible joint nozzle 1 ' on target plate 1, photoelectric measuring head with X, Y direction, and the flexible joint nozzle dynamic measuring instrument of electrical interconnecting station and motion control platform formation, it is characterized in that: flexible joint nozzle 1 ' opposite side being provided be carved with two target graticules 2 ' target plate 1, in limited distance on the other side, 2 road CCD optical measuring heads 4 are arranged
X3, 4
X4Be installed in a photoelectric measuring head 3 ' in, its output signal is through amplifying, processing send microcomputer to carry out computing by certain mathematical model, and makes Real-time Error and proofread and correct, and switches the measurement that control circuit is finished flexible joint nozzle three degree of freedom, six-freedom degree kinematic parameter by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92214536 CN2127494Y (en) | 1992-05-04 | 1992-05-04 | Dynamic tester for flexible spray pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92214536 CN2127494Y (en) | 1992-05-04 | 1992-05-04 | Dynamic tester for flexible spray pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2127494Y true CN2127494Y (en) | 1993-02-24 |
Family
ID=33763757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92214536 Expired - Fee Related CN2127494Y (en) | 1992-05-04 | 1992-05-04 | Dynamic tester for flexible spray pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2127494Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750214B (en) * | 2008-12-15 | 2011-03-02 | 北京航天发射技术研究所 | Simulation test device for firing attitude of rocket |
| CN101995878A (en) * | 2010-09-29 | 2011-03-30 | 北京航天自动控制研究所 | Centroid suspension simulation test platform with three degree of freedom |
| CN102155918A (en) * | 2011-03-28 | 2011-08-17 | 中国科学院长春光学精密机械与物理研究所 | Device and method for measuring five-DOF (degree of freedom) motion parameters of flexible jet pipes |
| CN104384241A (en) * | 2014-10-17 | 2015-03-04 | 北京航天益森风洞工程技术有限公司 | Device for protecting flexible jet pipe profile from excessive deformation |
| CN104764401A (en) * | 2015-03-11 | 2015-07-08 | 湖北航天技术研究院总体设计所 | Method for measuring swing angle and pivot point of engine flexible spraying pipe |
| CN108332929A (en) * | 2018-03-02 | 2018-07-27 | 北京强度环境研究所 | The frequency characteristic measurement system and method for flexible joint nozzle |
| CN112880622A (en) * | 2021-02-04 | 2021-06-01 | 上海航天控制技术研究所 | Method for calibrating swing angle sensor of flexible spray pipe by using inclinometer |
-
1992
- 1992-05-04 CN CN 92214536 patent/CN2127494Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750214B (en) * | 2008-12-15 | 2011-03-02 | 北京航天发射技术研究所 | Simulation test device for firing attitude of rocket |
| CN101995878A (en) * | 2010-09-29 | 2011-03-30 | 北京航天自动控制研究所 | Centroid suspension simulation test platform with three degree of freedom |
| CN101995878B (en) * | 2010-09-29 | 2012-06-13 | 北京航天自动控制研究所 | Centroid suspension simulation test platform with three degree of freedom |
| CN102155918A (en) * | 2011-03-28 | 2011-08-17 | 中国科学院长春光学精密机械与物理研究所 | Device and method for measuring five-DOF (degree of freedom) motion parameters of flexible jet pipes |
| CN102155918B (en) * | 2011-03-28 | 2012-09-19 | 中国科学院长春光学精密机械与物理研究所 | Device and method for measuring five-DOF (degree of freedom) motion parameters of flexible jet pipes |
| CN104384241A (en) * | 2014-10-17 | 2015-03-04 | 北京航天益森风洞工程技术有限公司 | Device for protecting flexible jet pipe profile from excessive deformation |
| CN104384241B (en) * | 2014-10-17 | 2016-08-24 | 北京航天益森风洞工程技术有限公司 | Flexible jet pipe profile crosses deformation protection device |
| CN104764401A (en) * | 2015-03-11 | 2015-07-08 | 湖北航天技术研究院总体设计所 | Method for measuring swing angle and pivot point of engine flexible spraying pipe |
| CN104764401B (en) * | 2015-03-11 | 2017-12-15 | 湖北航天技术研究院总体设计所 | A kind of engine flexible angle of cant and center of oscillation measuring method |
| CN108332929A (en) * | 2018-03-02 | 2018-07-27 | 北京强度环境研究所 | The frequency characteristic measurement system and method for flexible joint nozzle |
| CN112880622A (en) * | 2021-02-04 | 2021-06-01 | 上海航天控制技术研究所 | Method for calibrating swing angle sensor of flexible spray pipe by using inclinometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |