CN108801572A - Vibration test system - Google Patents
Vibration test system Download PDFInfo
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- CN108801572A CN108801572A CN201810575994.8A CN201810575994A CN108801572A CN 108801572 A CN108801572 A CN 108801572A CN 201810575994 A CN201810575994 A CN 201810575994A CN 108801572 A CN108801572 A CN 108801572A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The embodiment of the present invention provides a kind of vibration test system, which includes：Vibrational image acquisition subsystem with stationary fixture, shake table, scale plate and camera and vibrational image analytical equipment.The stationary fixture for being fixed with product to be detected is placed on shake table, and product to be detected is made to be vibrated with shake table.Camera is for shooting vibrational image, and camera is located at the both sides of product symmetry axis to be detected with scale plate, and the center of product to be detected is located on the optical axis of camera.Vibrational image analytical equipment determines position of the reference point of product to be detected in scale plate according to the vibrational image clapped, further according to the actual vibration parameter of location determination of the reference point in scale plate product to be detected.In above system, scale plate in vibrational image acquisition subsystem provides a reference when determining position of the reference point of product to be detected in scale plate for vibrational image analytical equipment, vibrational image analytical equipment is allow to accurately obtain the actual vibration parameter of product to be detected.
Description
Technical field
The present invention relates to technical field of quality detection more particularly to a kind of vibration test systems.
Background technology
In this day and age, product quality is the basic of Business survival and development.Therefore, in product export before sales, enterprise
It usually requires to carry out a series of quality testings to product, wherein vibration-testing is exactly one of important link of quality testing.Product
From producing to reaching in client's hand, a variety of different vibration environments, such as production environment, use environment can be encountered in whole process
And transportation environment etc..Can vibration-testing be exactly to detect product stand a variety of different vibration environments.
And in practical applications, test equipment can generate the vibration of default vibration parameters, and according to this default vibration ginseng
Number is treated test product and is tested.But the size of test equipment and product to be detected often mismatches, and leads to product to be detected
Actual vibration parameter and default vibration parameters it is unequal.At this time, it is necessary to according to the actual vibration data weight of product to be detected
The vibration parameters that new adjustment test equipment generates, so that the actual vibration parameter of product to be detected, which meets, presets vibration parameters, from
And achieve the purpose that detect product quality.Therefore, how accurately to obtain the actual vibration parameter of product to be detected just becomes one
A urgent problem to be solved.
Invention content
In view of this, the embodiment of the present invention provides a kind of vibration test system, to accurately obtain product to be detected
Actual vibration parameter.
The embodiment of the present invention provides a kind of vibration test system, including：Vibrational image acquisition subsystem and vibrational image
Analytical equipment；
The vibrational image acquisition subsystem includes：Stationary fixture, shake table, scale plate and camera；
Wherein, the camera, for shooting vibrational image, the camera is located at described to be detected with the scale plate
The center of the both sides of product symmetry axis, the product to be detected is located on the optical axis of the camera；
The product to be detected is fixed on the stationary fixture, and the fixture for being fixed with the product to be detected is placed
In on the shake table；
The shake table, for generating vibration according to default vibration parameters, so that the product to be detected is with the vibration
Platform vibrates；
The vibrational image analytical equipment is waited for for receiving the vibrational image according to described in vibrational image determination
Detect position of the reference point of product in the scale plate；According to location determination institute of the reference point in the scale plate
State the actual vibration parameter of reference point；And the actual vibration parameter is determined as to the actual vibration ginseng of the product to be detected
Number.
Optionally, the center of the scale plate is located on the optical axis of the camera.
Optionally, the vibrational image acquisition subsystem further includes：Pedestal and camera support；
The camera support includes main part, fixed part and stabilizers；
Wherein, the fixed part is fixed on the pedestal, the fixed part and the T-shaped connection of the main part, described
The both ends of stabilizers are connect with the main part and the fixed part respectively, and the upper end of the main part is equipped with groove, the phase
Machine is positioned in the groove.
Optionally, for the camera support tool there are two stabilizers, described two stabilizers are located at the main part
Both sides.
Optionally, the vibrational image acquisition subsystem further includes：Scale board mount；
The scale board mount includes main part, fixed part and stabilizers；
The scale plate covers the main part, and the main part is vertical with the fixed part, and the fixed part is fixed on
On the pedestal, the both ends of the stabilizers are connect with the main part and the fixed part respectively.
Optionally, the camera includes first camera and second camera；
The optical axis of the first camera is perpendicular to the first plane of product to be detected, and the center of first plane is located at
On the optical axis of first camera；
The optical axis of the second camera is perpendicular to the second plane of product to be detected, and the center of second plane is located at
On the optical axis of second camera, wherein first plane and second plane are vertical.
Optionally, the camera support includes first camera holder and second camera holder；
The first camera is positioned in the groove of the first camera holder, and the second camera is positioned over described second
In the groove of camera support.
Optionally, the scale plate includes the first scale plate and the second scale plate, and the scale board mount included the first quarter
Spend board mount and the second scale board mount；
First scale plate covers the centre bit of the main part of the first scale board mount and first scale plate
In on the optical axis of the first camera；
Second scale plate covers the centre bit of the main part of the second scale board mount and second scale plate
In on the optical axis of the second camera.
Optionally, the scale plate divides several grids in advance, and the vibrational image analytical equipment is specifically used for：
Establish the correspondence in each grid and vibrational image between each pixel in the scale plate；
Object pixel corresponding with the reference point of product to be detected is determined from the vibrational image；
Target gridding corresponding with the object pixel is determined according to the correspondence；
According to the actual vibration parameter of reference point described in location determination of the target gridding in the scale plate.
Vibration test system provided in an embodiment of the present invention, the system include：Vibrational image acquisition subsystem and vibration
Image analysis equipment.Wherein, vibrational image acquisition subsystem includes：Stationary fixture, shake table, scale plate and camera.It is to be checked
It surveys product to be fixed on stationary fixture, the stationary fixture for being fixed with product to be detected is placed on shake table.In shake table
When generating vibration according to default vibration parameters, stationary fixture and product to be detected can also generate vibration therewith.Camera can be clapped
Take the photograph the vibrational image of product to be detected.Camera is located at the both sides of product symmetry axis to be detected, and production to be detected with scale plate
The center of product is located on the optical axis of camera.According to above-mentioned location expression it is found that including scale in the vibrational image that camera is clapped
Scale on plate.Then, vibrational image analytical equipment analyzes the vibrational image clapped.Specifically：First according to vibration
Image determines position of the reference point of product to be detected in scale plate, joins further according to location determination of the reference point in scale plate
The actual vibration parameter of examination point, and the actual vibration that the actual vibration parameter of reference point is finally determined as to product to be detected is joined
Number.In above-mentioned vibration test system, the scale plate in vibrational image acquisition subsystem can be that vibrational image analytical equipment determines
A reference is provided when position of the reference point of product to be detected in scale plate, to keep vibrational image analytical equipment accurate
Really obtain the actual vibration parameter of product to be detected.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of vibration test system embodiment one provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of vibrational image acquisition subsystem provided in an embodiment of the present invention；
In Fig. 2：11-stationary fixtures, 12-shake tables, 13-products to be detected, 14-pedestals, 15-1-first camera
Holder, 15-2-second camera holder, the main part of 151-camera supports, the fixed part of 152-camera supports, 153-cameras
The stabilizers of holder, the main body of the first scales of 16-1-board mount, the second scales of 16-2-board mount, 161-scale board mounts
Portion, the fixed part of 162-scale board mounts, the stabilizers of 163-scale board mounts, 17-1-first camera, 17-2-second
Camera, the first scale plates of 18-1-, the second scale plates of 18-2-；
Fig. 3 is that a kind of optional vibrational image analytical equipment provided in an embodiment of the present invention determines that product to be detected is practical and shakes
The flow chart of the mode of dynamic parameter；
Fig. 4 is the front view of vibrational image acquisition subsystem in vibration test system provided in an embodiment of the present invention；
Fig. 5 is the vertical view of vibrational image acquisition subsystem in vibration test system provided in an embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is the purpose only merely for description specific embodiment, is not intended to be limiting
The present invention.In the embodiment of the present invention and "an" of singulative used in the attached claims, " described " and "the"
It is also intended to including most forms, unless context clearly shows that other meanings, " a variety of " generally comprise at least two, but not
It excludes to include at least one situation.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation of description affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate：Individualism A, exists simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
Depending on context, word as used in this " if ", " if " can be construed to " ... when " or
" when ... " or " in response to determination " or " in response to detection ".Similarly, context is depended on, phrase " if it is determined that " or " such as
Fruit detect (condition or event of statement) " can be construed to " when determining " or " in response to determination " or " when detection (statement
Condition or event) when " or " in response to detection (condition or event of statement) ".
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Including so that commodity or system including a series of elements include not only those elements, but also include not clear
The other element listed, or further include for this commodity or the intrinsic element of system.In the feelings not limited more
Under condition, the element that is limited by sentence "including a ...", it is not excluded that including the element commodity or system in also
There are other identical elements.
Fig. 1 is the structural schematic diagram of vibration test system provided in an embodiment of the present invention, as shown in Figure 1, the system includes：
Vibrational image acquisition subsystem 1 and vibrational image analytical equipment 2.
Vibrational image acquisition subsystem 1 can acquire vibrational image during the entire process of vibration-testing, and will be collected
Vibrational image is sent to vibrational image analytical equipment 2.Vibrational image analytical equipment 2 receives vibrational image, by analyzing vibrorecord
The change in location of product to be detected is so that it is determined that go out the vibration parameters of product to be detected as in.
For the vibrational image acquisition subsystem 1 in vibration test system, Fig. 2 is vibrorecord provided in an embodiment of the present invention
As the structural schematic diagram of acquisition subsystem 1.As shown in Fig. 2, the vibrational image acquisition subsystem 1 includes：Stationary fixture 11, vibration
Platform 12, scale plate and camera.
Stationary fixture 11, it is alternatively possible to there is at least one buckle structure, for product 13 to be detected to be fixed on
On clamp tool 11.Being fixed with the stationary fixture 11 of product 13 to be detected can be placed on shake table 12.In practical applications,
Optionally, stationary fixture can be L-shaped stationary fixture, and have the one side and shake table 12 compared with small area in stationary fixture 11
Deck contact.
Shake table 12 can start to vibrate according to default vibration parameters, then stationary fixture 11 and product to be detected 13 also can be with
Generation vibration, there are one actual vibration parameters for product 13 to be detected tool at this time.Either default vibration parameters still actually shake
Dynamic parameter, can include vibration frequency and/or Oscillation Amplitude.Since the product to be detected 13 involved in the present embodiment is usually
Build larger product, such as unmanned plane etc., therefore, in general, actual vibration parameter and default vibration parameters are not
Together.In general, what shake table 12 and product to be detected 13 carried out can be frequency conversion sinusoidal vibration, only the vibration of the two
The numerical value of parameter is different.
Scale plate and camera are located at the both sides of product 13 to be detected, and product to be detected 13 in the form of axisymmetric
Center be located on the optical axis of camera.Several grids are already divided on scale plate.It is alternatively possible to according to the resolution of camera
The corresponding number of pixels of rate carries out mesh generation in advance, for example, the number of grid in scale plate can be made to shake with what camera was clapped
There are multiple proportions for the number of pixels of motion video.
Camera can carry out the shooting of vibrational image during the entire process of vibration-testing respectively, to clap to obtain an at least Zhang Zhen
Motion video.After vibration-testing, the vibrational image clapped can be sent to vibration by camera by wired or wireless mode
Image analysis equipment 2.In addition, since the vibration frequency of shake table 12 is higher, also will be certain to the shutter speed of camera
It is required that optionally, the higher digital industrial camera, that is, high speed camera of camera typically shutter speed.
Vibrational image analytical equipment 2 receives the vibrational image clapped, and first determines product 13 to be detected according to vibrational image
The position in scale plate of reference point.A kind of optionally mode, can be determined in scale plate according to vibrational image with it is to be checked
Survey the position coordinates of the corresponding grid of reference point of product 13.Wherein, the reference point of product 13 to be detected can be production to be detected
Any point in product 13.Certainly, in order to mitigate the computation complexity of vibrational image analytical equipment 2 while improve accuracy in computation,
Usually it can will be set as reference point positioned at the point at 13 edge of product to be detected.Optionally, the position coordinates of grid can indicate
The line number and columns that are grid in scale plate.
Then, position of the reference point in scale plate in vibrational image analytical equipment 2 determines each Zhang Zhen's motion video
Afterwards, then the actual vibration parameter of reference point can be further determined according to obtained position data, and finally by this reference point
Vibration parameters are determined as the actual vibration parameter of product 13 to be detected.Wherein, optionally, vibrational image analytical equipment 2 can be
Equipment with data-handling capacity, such as computer.
A kind of optionally mode, as shown in figure 3, vibrational image analytical equipment 2 may be used following manner determine it is to be detected
The actual vibration parameter of product 13：
S101 establishes the correspondence in each grid and vibrational image between each pixel in scale plate.
S102 determines object pixel corresponding with the reference point of product to be detected from vibrational image.
S103 determines target gridding corresponding with object pixel according to correspondence.
S104, according to the actual vibration parameter of location determination reference point of the target gridding in scale plate.
Specifically, vibrational image analytical equipment 2 can first obtain the resolution of the number of grid and camera in scale plate
The number of pixel in the vibrational image that rate, that is, camera is clapped.Then, it establishes and protects according to the number of the number of grid and pixel
Deposit the correspondence between each grid and each pixel.For example, the number of pixel is 4 times of meshes number in vibrational image,
Then at this point, in scale plate in first grid and the vibrational image in the upper left corner the first row first row, the first row secondary series, the
There are correspondences for two row first rows and the second row secondary series this four pixels.
Then, vibrational image analytical equipment 2 using pre-set image recognizer identified from vibrational image with it is to be detected
The corresponding object pixel of reference point of product 13.It is alternatively possible to different according to the position of reference point setting, using different pre-
If image recognition algorithm.If reference point is set to the edge of product 13 to be detected, may be used based on grey level histogram or
Object pixel corresponding with reference point is identified from vibrational image based on the recognizer of gradient, that is to say to have obtained mesh at this time
Mark position of the pixel in vibrational image.Further, it further according to the correspondence between grid and pixel, obtains and target picture
The corresponding target gridding of element, that is to say to have obtained position of the target gridding in scale plate.
Vibrational image analytical equipment 2 can in the manner described above be identified every Zhang Zhen's motion video, to obtain reference point
From a corresponding target gridding at least Zhang Zhen's motion video.Then, it is being carved further according to obtained at least one target gridding
The position in plate and the actual vibration parameter of change in location calculating reference point are spent, and finally joins the actual vibration of this reference point
Number is determined as the actual vibration parameter of product 13 to be detected.Meanwhile vibrational image analytical equipment 2 can also be according to obtaining at least
Draw out what the reference point of product 13 to be detected generated during vibration-testing in position of one target gridding in scale plate
Oscillating curve and as the oscillating curve of product 13 to be detected, and this oscillating curve can be a frequency conversion sinusoidal vibration
Curve.
In the present embodiment, vibrational image acquisition subsystem 1 and vibrational image analytical equipment 2.Wherein, vibrational image acquires
Subsystem 1 includes：Stationary fixture 11, shake table 12, scale plate and camera.Product 13 to be detected is fixed in stationary fixture 11
On, the stationary fixture 11 for being fixed with product 13 to be detected is placed on shake table 12.Joined according to default vibration in shake table 12
When number generates vibration, stationary fixture 11 and product to be detected 13 can also generate vibration therewith.Camera can take to be detected
The vibrational image of product 13.And camera is located at the both sides of 13 symmetry axis of product to be detected with scale plate, product 13 to be detected
Center is located on the optical axis of camera.According to above-mentioned location expression it is found that including on scale plate in the vibrational image that camera is clapped
Scale.Then, vibrational image analytical equipment 2 analyzes the vibrational image that camera is clapped.Specifically：First according to vibration
Image determines position of the reference point of product to be detected in scale plate, joins further according to location determination of the reference point in scale plate
The actual vibration parameter of examination point, and the actual vibration that the actual vibration parameter of reference point is finally determined as to product to be detected is joined
Number.In above-mentioned vibration test system, the scale plate in vibrational image acquisition subsystem 1 can be that vibrational image analytical equipment 2 is true
Determine to provide a reference when position of the reference point of product 13 to be detected in scale plate, to make vibrational image analytical equipment 2
The actual vibration parameter of product 13 to be detected can be accurately obtained.
Description based on above-described embodiment, optionally, in vibrational image acquisition subsystem 1, the center of scale plate with wait for
The center for detecting product 13 is identical, also is located on the optical axis of camera.At this point, the center at the center of scale plate and product 13 to be detected
Line that is to say the straight line where the optical axis of camera.Such position relationship can reduce vibrational image analytical equipment 2 true
Computation complexity in the actual vibration parametric procedure of fixed product 13 to be detected.
Optionally, vibrational image acquisition subsystem 1 can also include：Pedestal 14 and camera support.Camera support is specific
Including main part 151, fixed part 152 and stabilizers 153.
Wherein, fixed part 152 is fixed on pedestal 14, fixed part 152 and 151 T-shaped connection of main part, stabilizers 153
Both ends connect respectively with main part 151 and fixed part 152.Such camera support structure that is to say T-type structure and triangle knot
The composite structure of structure.This composite structure can improve the stability of camera support, avoid the occurrence of the process vibrated in shake table 12
In, camera support is due to vibration and there is a situation where position changes.Further, shake table 12 can also be fixed and pedestal 14
On, it can ensure the stability of position between shake table 12, camera support and camera three in this way, shake to further increase
The accuracy for the actual vibration parameter that motion video analytical equipment 2 is determined.And the upper end of the main part 151 of camera support is also set
Fluted, camera can be positioned in groove.
Above-mentioned not to be defined to the stabilizers number of camera support, in practical applications, optionally, camera support can
With tool, there are two stabilizers, and the two stabilizers are located at the both sides of main part 151, to further increase camera support
Stability.
Optionally, vibrational image acquisition subsystem 1 can also include：Scale board mount, and scale board mount specifically wraps
Include main part 161, fixed part 162 and stabilizers 163.
Wherein, the scale plate for being divided several grids is covered on main part 161, and main part 161 hangs down with fixed part 162
Straight setting, fixed part 162 are fixed on pedestal 14, and the both ends of stabilizers 163 are connect with main part 161 and fixed part 162 respectively,
Main part 161, fixed part 162 and stabilizers 163 above-mentioned equally may be constructed a three-legged structure, to improve scale plate branch
The stability of frame.
In addition, it includes camera and camera support to be mentioned to vibrational image acquisition subsystem 1 in foregoing description.It is optional
Ground, above-mentioned part may exist two.Specifically, vibrational image acquisition subsystem 1 includes first camera holder 15-1, the
Two camera support 15-2, first camera 17-1 and second camera 17-2.
Wherein, the optical axis of first camera 17-1 is perpendicular to the first plane of product 13 to be detected, and the center of the first plane
On the optical axis of first camera 17-1.First camera 17-1 is positioned in the groove of first camera holder 15-1.Wherein, first
Plane can be the one side of the product to be detected 13 completely shown in 1 front view of vibrational image acquisition subsystem as shown in Figure 2.
The optical axis of second camera 17-2 is perpendicular to the second plane of product 13 to be detected, and the center of the second plane is located at the
On the optical axis of two camera 17-2, and the first plane and the second plane are vertical.Second camera 17-2 is positioned over second camera holder
In the groove of 15-2.
Accordingly with camera and camera support, optionally, vibrational image acquisition subsystem 1 includes scale plate and
Scale board mount also may exist two.Specifically, vibrational image acquisition subsystem 1 includes the first scale plate 18-1, the
Two scale plate 18-2 and with the first scale plate branch 16-1 framves and the second scale board mount 16-2.
Wherein, the first scale plate 18-1 covers the main part 161 and the first scale plate 18-1 of the first scale board mount 16-1
Center be located on the optical axis of first camera 17-1.
Second scale plate 18-2 covers the main part 161 of the second scale board mount 16-2 and the center of the second scale plate 18-2
On the optical axis of second camera 17-2.
At this point, the light at the center of the first scale plate 18-1 and the line and first camera 17-1 at the center of product 13 to be detected
Axis is located along the same line.The line and second camera 17-2 at the center of the second scale plate 18-2 and the center of product 13 to be detected
Optical axis also be located on same straight line.First camera 17-1 in this way and second camera 17-2 can clap to obtain product 13 to be detected respectively
Vibrational image in a different direction, vibrational image analytical equipment 2 can obtain to be checked according to the vibrational image of different directions
The actual vibration parameter of product 13 in different directions is surveyed, so as to be better understood upon the Vibration Condition of product to be detected.
The apparatus embodiments described above are merely exemplary, wherein can be as the unit that separating component illustrates
Or may not be and be physically separated, the component shown as unit may or may not be physical unit, i.e.,
A place can be located at, or may be distributed over multiple network units.It can select according to the actual needs therein
Some or all of module achieves the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creative labor
In the case of dynamic, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of required general hardware platform is added, naturally it is also possible to which reality is come in conjunction with by way of hardware and software
It is existing.Based on this understanding, substantially the part that contributes to existing technology can be with product in other words for above-mentioned technical proposal
Form embody, which can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD
Deng, including some instructions use is so that a computer installation (can be personal computer, server or network equipment etc.)
The method for executing certain parts of each embodiment or embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (9)
1. a kind of vibration test system, which is characterized in that including：Vibrational image acquisition subsystem and vibrational image analysis are set
It is standby；
The vibrational image acquisition subsystem includes：Stationary fixture, shake table, scale plate and camera；
Wherein, the camera, for shooting vibrational image, the camera is located at the product to be detected with the scale plate
The center of the both sides of symmetry axis, the product to be detected is located on the optical axis of the camera；
The product to be detected is fixed on the stationary fixture, and the fixture for being fixed with the product to be detected is positioned over institute
It states on shake table；
The shake table, for generating vibration according to default vibration parameters, so that the product to be detected shakes with the shake table
It is dynamic；
The vibrational image analytical equipment determines described to be detected for receiving the vibrational image according to the vibrational image
Position of the reference point of product in the scale plate；Join according to described in location determination of the reference point in the scale plate
The actual vibration parameter of examination point；And the actual vibration parameter is determined as to the actual vibration parameter of the product to be detected.
2. system according to claim 1, which is characterized in that the center of the scale plate is located at the optical axis of the camera
On.
3. system according to claim 2, which is characterized in that the vibrational image acquisition subsystem further includes：Pedestal with
And camera support；
The camera support includes main part, fixed part and stabilizers；
Wherein, the fixed part is fixed on the pedestal, the fixed part and the T-shaped connection of the main part, the stabilization
The both ends in portion are connect with the main part and the fixed part respectively, and the upper end of the main part is equipped with groove, and the camera is put
It is placed in the groove.
4. system according to claim 3, which is characterized in that there are two stabilizers for the camera support tool, described two
Stabilizers are located at the both sides of the main part.
5. system according to claim 3 or 4, which is characterized in that the vibrational image acquisition subsystem further includes：Scale
Board mount；
The scale board mount includes main part, fixed part and stabilizers；
The scale plate covers the main part, and the main part is vertical with the fixed part, and the fixed part is fixed on described
On pedestal, the both ends of the stabilizers are connect with the main part and the fixed part respectively.
6. system according to claim 5, which is characterized in that the camera includes first camera and second camera；
The optical axis of the first camera perpendicular to product to be detected the first plane, and the center of first plane be located at first
On the optical axis of camera；
The optical axis of the second camera perpendicular to product to be detected the second plane, and the center of second plane be located at second
On the optical axis of camera, wherein first plane and second plane are vertical.
7. system according to claim 6, which is characterized in that the camera support includes first camera holder and the second phase
Machine support；
The first camera is positioned in the groove of the first camera holder, and the second camera is positioned over the second camera
In the groove of holder.
8. the system described according to claim 6 or 7, which is characterized in that the scale plate includes the first scale plate and the second quarter
Plate is spent, the scale board mount includes the first scale board mount and the second scale board mount；
First scale plate covers the main part of the first scale board mount and the center of first scale plate is located at institute
It states on the optical axis of first camera；
Second scale plate covers the main part of the second scale board mount and the center of second scale plate is located at institute
It states on the optical axis of second camera.
9. system according to claim 1, which is characterized in that the scale plate divides several grids, the vibration in advance
Image analysis equipment is specifically used for：
Establish the correspondence in each grid and vibrational image between each pixel in the scale plate；
Object pixel corresponding with the reference point of product to be detected is determined from the vibrational image；
Target gridding corresponding with the object pixel is determined according to the correspondence；
According to the actual vibration parameter of reference point described in location determination of the target gridding in the scale plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575994.8A CN108801572B (en) | 2018-06-06 | 2018-06-06 | Vibration testing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575994.8A CN108801572B (en) | 2018-06-06 | 2018-06-06 | Vibration testing system |
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| CN108801572A true CN108801572A (en) | 2018-11-13 |
| CN108801572B CN108801572B (en) | 2021-04-09 |
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| CN201810575994.8A Active CN108801572B (en) | 2018-06-06 | 2018-06-06 | Vibration testing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103113A (en) * | 2020-02-01 | 2020-05-05 | 青岛理工大学 | Multifunctional complex multi-phase collision experimental instrument |
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