CN104568354A - Flexible hinged plate vibration measurement device based on ultrasonic sensors - Google Patents
Flexible hinged plate vibration measurement device based on ultrasonic sensors Download PDFInfo
- Publication number
- CN104568354A CN104568354A CN201510033170.4A CN201510033170A CN104568354A CN 104568354 A CN104568354 A CN 104568354A CN 201510033170 A CN201510033170 A CN 201510033170A CN 104568354 A CN104568354 A CN 104568354A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic sensor
- articulated slab
- flexible
- hinged plate
- flexible board
- 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.)
- Pending
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a flexible hinged plate vibration measurement device based on ultrasonic sensors. The flexible hinged plate vibration measurement device comprises a hinged plate, the multiple ultrasonic sensors, an A/D data collecting card, a computer and a displayer. The hinged plate is formed by connecting a flexible plate I and a flexible plate II through a hinge; the ultrasonic sensors are installed right ahead of the hinged plate and used for transmitting collected electric signals to the computer through the A/D data collecting card; the computer is connected with the displayer, can obtain bending and torsional vibration information of the hinged plate through decoupling calculation and is used for vibration analysis or control. As the multiple ultrasonic sensors are reasonably arranged, the measurement effect reaches the optimal.
Description
Technical field
The present invention relates to flexible hinged plate vibration detection field, be specifically related to a kind of based on ultrasonic sensor flexible hinged plate vibration measurement device.
Background technology
At aerospace field, there is this kind of flexible structure of a large amount of picture solar energy sailboard, along with the increase of spacecraft complexity and the raising to energy, accuracy requirement, this kind of space structure of solar energy sailboard is more and more towards maximization and flexibility future development, larger solar energy sailboard can be changed more sun power and provide more sufficient energy into spacecraft, flexibility can alleviate spacecraft mass, contributes to reducing costs, and reduces operation energy consumption.Common solar energy sailboard one end is connected with spacecraft, and the other end freely stretches, and is arranged symmetrically, and is be formed by connecting by polylith rectangle windsurfing, has very long span and larger flexibility.Large span, the solar energy sailboard of Low rigidity is in undamped space environment, and the space environments such as universe wind, corpuscullar flow and temperature shock and spacecraft become rail, windsurfing stretches and gathering etc. self is encouraged and all inevitably produce interference to it; Once be subject to the effect of this interference, its Large Amplitude Vibration produced is difficult to Natural Attenuation at short notice and gets off, and particularly the vibration of low order will last very long; If do not suppressed this vibration, certainly will will affect the normal work of spacecraft, and carry out the basis that vibration survey is vibration control.In prior art, the mode of flexural vibration of research simulation solar energy sailboard structure and torsion mode vibration control, generally ignore the impact of the rigidity connecting hinge, solar energy sailboard be simplified to flexible panel structure.Prior art adopts piezoelectric patches, acceleration transducer and PSD sensor usually to flexible hinged plate vibration survey, but sensors with auxiliary electrode is all touch sensor, can produce and have a strong impact on, reduce measuring accuracy to the vibration of measured body.
Summary of the invention
In order to overcome the shortcoming of prior art existence with not enough, the invention provides a kind of based on ultrasonic sensor flexible hinged plate vibration measurement device.
The present invention adopts following technical scheme:
A kind of based on ultrasonic sensor flexible hinged plate vibration measurement device, comprise articulated slab, multiple ultrasonic sensor, A/D data collecting card, computing machine and display;
Described articulated slab is connected through the hinge by flexible board I and flexible board II and forms, and one end of described articulated slab is fixed by mechanical clamping device and base, and the other end of articulated slab is free end, and described multiple ultrasonic sensor is arranged on the dead ahead of articulated slab;
The electric signal collected is transferred to computing machine through A/D data collecting card by described multiple ultrasonic sensor, and described computing machine is connected with display.
Described supersonic sensing implement body has 8, is respectively the first, second, third, fourth, the 5th, the 6th, the 7th and the 8th ultrasonic sensor.
Described first, second and third ultrasonic sensor is arranged on the central point of flexible board I and the two ends up and down near hinge side respectively by the first support, and described 4th, the 5th, the 6th, the 7th and the 8th ultrasonic sensor is arranged on the central point of flexible board II and four angles of flexible board II respectively by the second support.
Also comprise magnetic bases, first, second support described is arranged on base respectively by magnetic bases.
Described mechanical clamping device comprises isosceles trapezoid clamping plate and rectangular cylindrical support, and described isosceles trapezoid clamping plate are arranged on rectangular cylindrical support by bolt.
Beneficial effect of the present invention:
(1) by two pieces of flexible boards are become articulated slab through chain connection, its dynamics is more close with actual solar energy sailboard structure, carries out vibration survey research on this basis and has more practical significance.
(2) this device has installed multiple sensor to detect the vibration of each measurement point, can measure the multistage low modal vibration of articulated slab, has installed sensor simultaneously, can obtain the impact that hinge vibrates articulated slab on hinge both sides.
(3) adopt ultrasonic sensor, be non-contact measurement, there is no load effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the front view in Fig. 1 of the present invention.
Shown in figure:
1-flexible board I, 2-first ultrasonic sensor, 3-second ultrasonic sensor, 4-first hinge, 5-the 4th ultrasonic sensor, 6-flexible board II, 7-the 6th ultrasonic sensor, 8-the 7th ultrasonic sensor, 9-the 8th ultrasonic sensor, 10-the 5th ultrasonic sensor, 11-second hinge, 12-the 3rd ultrasonic sensor, 13-first magnetic bases, 14-second magnetic bases, 15-base, 16-rectangular cylindrical support, 17-isosceles trapezoid clamping plate.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1 and Figure 2, a kind of based on ultrasonic sensor flexible hinged plate vibration measurement device, comprise articulated slab, multiple ultrasonic sensor, A/D data collecting card, computing machine and display;
Described articulated slab is connected and composed by first, second hinge 4,11 by flexible board I 1 and flexible board II 6, one end of described articulated slab is fixed by mechanical clamping device and base 15, the other end of articulated slab is free end, described multiple ultrasonic sensor is arranged on the dead ahead of articulated slab, described mechanical clamping device is made up of isosceles trapezoid clamping plate 17 and rectangular cylindrical support 16, and described isosceles trapezoid clamping plate 17 are arranged on rectangular cylindrical support 16 by bolt.
Ultrasonic sensor specifically 8 in the present embodiment, be respectively first, second, 3rd, 4th, 5th, 6th, 7th and the 8th ultrasonic sensor 2, 3, 12, 5, 10, 7, 8, 9, the measuring distance of described eight ultrasonic sensors distance articulated slab is 200mm, wherein first, second, 3rd ultrasonic sensor 2, 3, 12 are arranged on the central point of flexible board I 1 and the two ends up and down near hinge side respectively by the first support, 4th, 5th, 6th, 7th and the 8th ultrasonic sensor 5, 10, 7, 8, 9 are arranged on the central point of flexible board II 6 and four angles of flexible board II 6 respectively by the second support.
First, second support described is arranged on base 15 respectively by first, second magnetic bases 13,14, described first support is made up of a montant and three cross bars, three cross bars are arranged on the position, upper, middle and lower of montant, three cross bars are installed respectively the second, first, the 3rd ultrasonic sensor.
Three cross bars that described second support is also mounted on a montant are formed, and the 4th, the 7th ultrasonic sensor is installed at the first cross bar two ends, and the 6th ultrasonic sensor installed by the second cross bar, and the 5th and the 8th ultrasonic sensor is installed at the 3rd cross bar two ends.
Described eight ultrasonic sensors constantly send ultrasonic pulse, ultrasonic pulse is reflected back after arriving articulated slab at once, the distance of sensor to articulated slab is calculated in real time from being issued to the reception time used by ultrasonic pulse, sensor converts distance to the electric signal such as voltage or electric current, this electric signal is input to computing machine after A/D data collecting card, and computing machine is connected with display.
The course of work of this device is as follows:
The first step plays the vibration of articulated slab with hitting the power hammering of shaking;
The distance of second step ultrasonic sensor real-time measurement sensor and articulated slab is also converted to electric signal, and this electric signal is input to computing machine after A/D data collecting card;
3rd step is the distance signal of sensor and articulated slab but not the vibration displacement signal of articulated slab due to the signal detected in second step, have to pass through the process of signal to obtain the vibration displacement signal of articulated slab, such as, due to ultrasonic sensor and equal with the equilibrium position mounting distance of articulated slab, and their check point place bending displacement is equal and in the same way, torsional displacement is equal and reverse, the flexural vibrations displacement of articulated slab can be obtained by the signal plus detected by two sensors, subtract each other the twisting vibration displacement that can obtain articulated slab.Because this device has installed eight ultrasonic sensors, substantially the multistage low modal vibration of articulated slab can be reflected, simultaneously because flexible board is connected through the hinge into articulated slab, the rigidity of hinge also can produce material impact to the vibration of articulated slab, device has installed the vibration displacement that four ultrasonic sensors are used for measuring respectively the first hinge and second hinge the right and left, so can obtain the displacement that the first hinge and the second hinge produce when articulated slab vibrates.Because this device focuses on proposing a kind of measurement mechanism, the number of sensor and the method for signal transacting during application, can be selected as required to reach different measurement objects.
Dotted line in Fig. 1 connects the connection layout representing electric signal and signal processing apparatus.
In the present embodiment, the size optional 500mm × 500mm × 2mm of flexible board I 1 and flexible board II 6, material is epoxy resin, and elastic modulus is 34.64GPa, and Poisson ratio is 0.33; The sensor that ultrasonic sensor 2,3,5,7,8,9,10,12 selects German Sen Sapate company to produce, model is UMT30-350-A-IUD-L5, sensor limit working range is 600mm, measurement range is 65 ~ 350mm, ultrasonic frequency 400kHz, resolution 0.025mm, analog output 0 ~ 10V/4 ~ 20mA.The product of MTI company selected by magnetic bases 13,14; The model that A/D data collecting card can select Taiwan ICP DAS Co., Ltd. to produce is PCI-1800H A/D translation data capture card; Computing machine can select Taiwan to grind magnificent IPC610 cabinet, PCA-6006 mainboard, production unit: Taiwan Advantech company.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not limited by the examples; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. based on a ultrasonic sensor flexible hinged plate vibration measurement device, it is characterized in that, comprise articulated slab, multiple ultrasonic sensor, A/D data collecting card, computing machine and display;
Described articulated slab is connected through the hinge by flexible board I and flexible board II and forms, and one end of described articulated slab is fixed by mechanical clamping device and base, and the other end of articulated slab is free end, and described multiple ultrasonic sensor is arranged on the dead ahead of articulated slab;
The electric signal collected is transferred to computing machine through A/D data collecting card by described multiple ultrasonic sensor, and described computing machine is connected with display.
2. one according to claim 1 is based on ultrasonic sensor flexible hinged plate vibration measurement device, it is characterized in that, described supersonic sensing implement body has 8, is respectively the first, second, third, fourth, the 5th, the 6th, the 7th and the 8th ultrasonic sensor.
3. measurement mechanism according to claim 2, it is characterized in that, described first, second and third ultrasonic sensor is arranged on the central point of flexible board I and the two ends up and down near hinge side respectively by the first support, and described 4th, the 5th, the 6th, the 7th and the 8th ultrasonic sensor is arranged on the central point of flexible board II and four angles of flexible board II respectively by the second support.
4. measurement mechanism according to claim 3, is characterized in that, also comprises magnetic bases, and first, second support described is arranged on base respectively by magnetic bases.
5. measurement mechanism according to claim 1, is characterized in that, described mechanical clamping device comprises isosceles trapezoid clamping plate and rectangular cylindrical support, and described isosceles trapezoid clamping plate are arranged on rectangular cylindrical support by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510033170.4A CN104568354A (en) | 2015-01-22 | 2015-01-22 | Flexible hinged plate vibration measurement device based on ultrasonic sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510033170.4A CN104568354A (en) | 2015-01-22 | 2015-01-22 | Flexible hinged plate vibration measurement device based on ultrasonic sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104568354A true CN104568354A (en) | 2015-04-29 |
Family
ID=53084935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510033170.4A Pending CN104568354A (en) | 2015-01-22 | 2015-01-22 | Flexible hinged plate vibration measurement device based on ultrasonic sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104568354A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931218A (en) * | 2015-06-30 | 2015-09-23 | 宁波大学 | System of modal vibration mode of non-contact measuring flexible structure |
| CN110031170A (en) * | 2019-04-24 | 2019-07-19 | 华南理工大学 | A kind of flexible hinged plate vibration measurement control device and control method |
| WO2020181778A1 (en) * | 2019-03-13 | 2020-09-17 | 华南理工大学 | Device and method for detecting blending effect of eccentric rotor extruder on line |
| CN112099543A (en) * | 2020-08-14 | 2020-12-18 | 华南理工大学 | Vibration control device and control method for moving two-dimensional multi-unfolding plate |
| CN113686529A (en) * | 2021-10-26 | 2021-11-23 | 山东润龙轴承有限公司 | Acrylic plate vibration measurement system and device based on ultrasonic waves |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101055219A (en) * | 2007-05-11 | 2007-10-17 | 上海大学 | Simulated intelligence flexible space sail board structural vibration main control test platform and method |
| CN102384832A (en) * | 2011-09-28 | 2012-03-21 | 华南理工大学 | Vibration measurement device of hinged flexible board structure with rotary center and control method thereof |
| CN102411380A (en) * | 2011-11-30 | 2012-04-11 | 华南理工大学 | Multi-channel control device and method of bending and torsion vibration of flexible hinged plate |
| CN102519378A (en) * | 2011-11-30 | 2012-06-27 | 华南理工大学 | Device for measuring bending and torsional vibration of hinged plate of phase-sensitive detector (PSD) sensor and method for device |
| CN102818688A (en) * | 2012-08-27 | 2012-12-12 | 中国矿业大学 | Loading device and method of vibration test of imitating flexible member |
| CN203519293U (en) * | 2013-10-23 | 2014-04-02 | 沈阳黎明航空发动机(集团)有限责任公司 | Microscope bracket for blade fatigue vibration test |
| CN104142125A (en) * | 2014-07-23 | 2014-11-12 | 华南理工大学 | Piezoelectric plate vibration detection and control device and method based on laser displacement sensor |
| CN204373871U (en) * | 2015-01-22 | 2015-06-03 | 华南理工大学 | A kind of based on ultrasonic sensor flexible hinged plate vibration measurement device |
-
2015
- 2015-01-22 CN CN201510033170.4A patent/CN104568354A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101055219A (en) * | 2007-05-11 | 2007-10-17 | 上海大学 | Simulated intelligence flexible space sail board structural vibration main control test platform and method |
| CN102384832A (en) * | 2011-09-28 | 2012-03-21 | 华南理工大学 | Vibration measurement device of hinged flexible board structure with rotary center and control method thereof |
| CN102411380A (en) * | 2011-11-30 | 2012-04-11 | 华南理工大学 | Multi-channel control device and method of bending and torsion vibration of flexible hinged plate |
| CN102519378A (en) * | 2011-11-30 | 2012-06-27 | 华南理工大学 | Device for measuring bending and torsional vibration of hinged plate of phase-sensitive detector (PSD) sensor and method for device |
| CN102818688A (en) * | 2012-08-27 | 2012-12-12 | 中国矿业大学 | Loading device and method of vibration test of imitating flexible member |
| CN203519293U (en) * | 2013-10-23 | 2014-04-02 | 沈阳黎明航空发动机(集团)有限责任公司 | Microscope bracket for blade fatigue vibration test |
| CN104142125A (en) * | 2014-07-23 | 2014-11-12 | 华南理工大学 | Piezoelectric plate vibration detection and control device and method based on laser displacement sensor |
| CN204373871U (en) * | 2015-01-22 | 2015-06-03 | 华南理工大学 | A kind of based on ultrasonic sensor flexible hinged plate vibration measurement device |
Non-Patent Citations (2)
| Title |
|---|
| 任春荣: ""非接触静电点位测量系统研究与设计"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 周月琴等: ""超声波远距离振动信号检测系统的设计"", 《机械科学与技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931218A (en) * | 2015-06-30 | 2015-09-23 | 宁波大学 | System of modal vibration mode of non-contact measuring flexible structure |
| WO2020181778A1 (en) * | 2019-03-13 | 2020-09-17 | 华南理工大学 | Device and method for detecting blending effect of eccentric rotor extruder on line |
| CN110031170A (en) * | 2019-04-24 | 2019-07-19 | 华南理工大学 | A kind of flexible hinged plate vibration measurement control device and control method |
| CN112099543A (en) * | 2020-08-14 | 2020-12-18 | 华南理工大学 | Vibration control device and control method for moving two-dimensional multi-unfolding plate |
| CN113686529A (en) * | 2021-10-26 | 2021-11-23 | 山东润龙轴承有限公司 | Acrylic plate vibration measurement system and device based on ultrasonic waves |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104568354A (en) | Flexible hinged plate vibration measurement device based on ultrasonic sensors | |
| CN103398807B (en) | A kind of novel three-dimensional stress measurement sensor | |
| CN102411380B (en) | Multi-channel control device and method of bending and torsion vibration of flexible hinged plate | |
| CN100412521C (en) | Three-D small range force sensor | |
| CN101249897A (en) | Space sailboard bending and turning mode vibration simulation active control device and method | |
| WO2005066756A3 (en) | Touch sensitive device employing bending wave vibration sensing and excitation transducers | |
| CN104142125A (en) | Piezoelectric plate vibration detection and control device and method based on laser displacement sensor | |
| CN107132015A (en) | A kind of vibration measurement of flexible board and control device and method | |
| CN2842393Y (en) | Material internal-stress supersonic measuring device | |
| CN101672827A (en) | Method for measuring rigidity of poultry eggs | |
| CN204373871U (en) | A kind of based on ultrasonic sensor flexible hinged plate vibration measurement device | |
| CN109145455A (en) | A kind of monitoring point choosing method for power transmission tower mechanical property testing | |
| CN105929866A (en) | Hinge plate vibration control device based on multiple laser displacement sensor and method | |
| CN104764522A (en) | Ultrasonic power measurement method and device | |
| CN104155072A (en) | Lifting cutter vibration and bending measuring device | |
| CN205844922U (en) | Articulated slab vibration control apparatus based on many laser displacement sensors | |
| CN200989812Y (en) | Impact resisting cotton bale weighing electronic scale | |
| CN207037493U (en) | A kind of more flexible beam vibration control apparatus based on timing belt driving | |
| CN112304741B (en) | Young modulus testing device and method based on chain folding height nonlinear solitary wave | |
| CN103278568A (en) | Ultrasonic sclerometer and testing method thereof | |
| CN102339175A (en) | Touch sensitive locating device and method | |
| CN206095563U (en) | Transformer winding axial deformation's modal experiment system | |
| CN204008051U (en) | Shedding tool vibration and flexural measurement device | |
| CN102890029A (en) | Parameter testing system of leaf spring of seismic geophone | |
| CN202171479U (en) | Device for measuring mass flow rate of grain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |