CN204373871U - A kind of based on ultrasonic sensor flexible hinged plate vibration measurement device - Google Patents
A kind of based on ultrasonic sensor flexible hinged plate vibration measurement device Download PDFInfo
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- CN204373871U CN204373871U CN201520045726.7U CN201520045726U CN204373871U CN 204373871 U CN204373871 U CN 204373871U CN 201520045726 U CN201520045726 U CN 201520045726U CN 204373871 U CN204373871 U CN 204373871U
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- articulated slab
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Abstract
The utility model discloses 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 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 multiple ultrasonic sensor, and described computing machine is connected with display, and computing machine can obtain the bending and torsion vibration information of articulated slab, for vibration analysis or control through decoupling zero computing.The utility model, by the multiple ultrasonic sensor of reasonable Arrangement, makes the effect of measurement reach best.
Description
Technical field
The utility model relates to flexible hinged plate vibration detection field, is 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.
Utility model content
In order to overcome the shortcoming of prior art existence with not enough, the utility model provides a kind of based on ultrasonic sensor flexible hinged plate vibration measurement device.
The utility model 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.
The beneficial effects of the utility model:
(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 utility model;
Fig. 2 is the front view in the utility model Fig. 1.
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 utility model is described in further detail, but embodiment of the present utility model is 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 utility model preferably embodiment; but embodiment of the present utility model is not limited by the examples; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
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 |
|---|---|---|---|
| CN201520045726.7U CN204373871U (en) | 2015-01-22 | 2015-01-22 | A kind of based on ultrasonic sensor flexible hinged plate vibration measurement device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520045726.7U CN204373871U (en) | 2015-01-22 | 2015-01-22 | A kind of based on ultrasonic sensor flexible hinged plate vibration measurement device |
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| CN204373871U true CN204373871U (en) | 2015-06-03 |
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| CN201520045726.7U Expired - Fee Related CN204373871U (en) | 2015-01-22 | 2015-01-22 | A kind of based on ultrasonic sensor flexible hinged plate vibration measurement device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568354A (en) * | 2015-01-22 | 2015-04-29 | 华南理工大学 | Flexible hinged plate vibration measurement device based on ultrasonic sensors |
| CN106017839A (en) * | 2016-07-18 | 2016-10-12 | 华南理工大学 | Bending and torsional vibration detection control apparatus and method based on flexible articulated slab |
-
2015
- 2015-01-22 CN CN201520045726.7U patent/CN204373871U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568354A (en) * | 2015-01-22 | 2015-04-29 | 华南理工大学 | Flexible hinged plate vibration measurement device based on ultrasonic sensors |
| CN106017839A (en) * | 2016-07-18 | 2016-10-12 | 华南理工大学 | Bending and torsional vibration detection control apparatus and method based on flexible articulated slab |
| CN106017839B (en) * | 2016-07-18 | 2019-05-14 | 华南理工大学 | Based on flexible, hinged plate benging and twisting vibration detection control apparatus and method |
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| Date | Code | Title | Description |
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| 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: 20150603 Termination date: 20180122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |