CN206945488U - Double CCD sand materials video imaging granularity particle shape analytical equipments - Google Patents
Double CCD sand materials video imaging granularity particle shape analytical equipments Download PDFInfo
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- CN206945488U CN206945488U CN201720739502.5U CN201720739502U CN206945488U CN 206945488 U CN206945488 U CN 206945488U CN 201720739502 U CN201720739502 U CN 201720739502U CN 206945488 U CN206945488 U CN 206945488U
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Abstract
The utility model provides a kind of double CCD sand materials video imaging granularity particle shape analytical equipments, and the working face tilts down setting along charging aperture to discharging opening so that material is slided from charging aperture to discharging opening；The driven by vibrating motors work surface vibration；The cylinder is placed in the vertical direction, and its upper end connects with discharging opening；The glass exterior window trim is outside the side wall of cylinder；Light source is positioned over outside the side of glass window, and its light sent exposes to glass window；Position corresponding with glass window sets first ccd video camera in the cylinder；The opposite side of the glass window sets second ccd video camera；The camera lens is set between the second ccd video camera and glass window；The base is arranged on the lower section of camera lens, and focusing platform is positioned on base, and is supported along vertical direction and camera lens contact；First ccd video camera, the second ccd video camera are connected by data wire with computer.
Description
Technical field
A kind of sand material detection field is the utility model is related to, more particularly to a kind of double CCD sand materials video imaging granularities
Particle shape analytical equipment.
Background technology
We will obtain the picture rich in detail of stationary body under normal circumstances, and a video camera can complete work.When us
When needing the three-dimensional imaging of one stationary body of acquisition, it would be desirable to which a video camera multi-angle is shot or using more
Video camera shoot simultaneously, and the now shooting of multiple cameras does not need Complete Synchronization because object be it is static no matter
What moment shoot, camera acquisition to image be all consistent.For moving object, then it must take into consideration video camera and synchronously ask
Topic, reaches the same time, and reference object is the purpose of same group of material.
Current most of ccd video cameras all support interior synchronous, outer two kinds of working methods of synchronization, medium-to-high grade CCD shootings
Machine also includes outer synchronous input end mouth in addition to video-out port, to realize that synchronization of the external signal to video camera triggers.
Interior synchronization then requires too high to CCD trigger elements itself, so video camera is placed in by external sync mode by SYNC toggle switch,
And the outer synchronous input end mouth of each video camera is connected on an external synchronous generator, then each video camera have turned off
Respective interior synchronous generation circuit, but obtained from outer synchronous input end mouth and isolate the synchronizing information needed for each several part.
Because now the synchronizing information of each video camera is to come from same synchronous generator, ensure that two ccd video cameras collect
Image information it is synchronous.
Utility model content
Technical problem underlying to be solved in the utility model is the deficiency present in prior art, and is provided a kind of
Double CCD sand materials video imaging granularity particle shape analytical equipments.
The purpose of this utility model is realized by following technical proposals：A kind of double CCD sand materials video imaging grains
Spend particle shape analytical equipment, including oscillating feeder 1, light source 2, splicing cylinder 3, the first ccd video camera 4, base 5, camera lens 6, focusing
Platform 7, the second ccd video camera 8, computer 9；
Oscillating feeder 1 includes charging aperture 11, working face 12, discharging opening 13, vibrating motor 14；Splicing cylinder 3 includes cylinder
31 and glass window 32；
The working face tilts down setting along charging aperture 11 to discharging opening 13 so that material is from charging aperture 11 to discharging
Mouth 13 slides；The vibrating motor 14 drives working face 12 to vibrate；
The cylinder 31 is placed in the vertical direction, and its upper end connects with discharging opening 13；The glass window 32 is sheathed on
Outside the side wall of cylinder 31；Light source 2 is positioned over outside the side of glass window 32, and its light sent exposes to glass window 32；The cylinder 31
It is interior that first ccd video camera 4 is set with 32 corresponding position of glass window；The opposite side of the glass window 32 sets the 2nd CCD
Video camera 8；The camera lens 6 is set between second ccd video camera 8 and glass window 32；The base 5 is arranged on the lower section of camera lens 6, adjusts
Burnt platform 7 is positioned on base 5, and is supported along vertical direction and the contact of camera lens 6；
First ccd video camera 4, the second ccd video camera 8 are connected by data wire with computer 9；
The image that the computer 9 is shot by the first high speed CCD camera 4 obtains sphericity value α1, by second at a high speed
The image that ccd video camera 8 is shot obtains sphericity value α2, draw sphericity averageSimilarly, computer 9 draws circularity average valueApparent density average valueBulk density average value
In a preferred embodiment：The vibrating motor 14 includes an eccentric block, changes the position of the eccentric block, described to shake
The Oscillation Amplitude of dynamic batcher 1 changes therewith, and the blanking velocity of material also changes therewith.
In a preferred embodiment：The light source 2 is high-brightness LED spot light.
In a preferred embodiment：The camera lens 6 is bilateral or unilateral telecentric lens, and multiplication factor is from 2 times to 0.1 times.
Measurement range is 10 μm of -40mm.
In a preferred embodiment：Shutter speed >=5ms of first ccd video camera 4, the second ccd video camera 8, often
Second storage at least 50 width images.
In a preferred embodiment：The first ccd video camera 4, the second ccd video camera 8 are placed in by SYNC toggle switch
External synchronization mode, and the outer synchronous input end mouth of the first ccd video camera 4, the second ccd video camera 8 is connected to outside one simultaneously
Connect on synchronous generator.
Compared to prior art, the technical solution of the utility model possesses following beneficial effect：The utility model provides
A kind of double CCD sand materials video imaging granularity particle shape analytical equipments, object is dynamic continous way stream.The device is using double CCD
Video camera imaging, without deliberately installing dispersal device additional, stream passes through detection zone without individual layer.It is simple in construction, easily realize.Use
Outer synchronized links mode realizes the synchronous acquisition task of double ccd video cameras, to same section of stream collection graphics saving simultaneously in real time
Computer is transferred to, by results averaged, infinitely also original initial stream granularity particle shape state.It is easy to be reliable.
Brief description of the drawings
Fig. 1 is that a kind of double CCD sand materials video imaging granularity particle shape analytical equipments that the utility model embodiment provides show
It is intended to；
In figure：1. the focusing of the camera lens 7. of 2. light source of oscillating feeder, 3. 1 5. base of splicing cylinder 4.CCD video cameras 6. is flat
The cylinder 32. of 14. vibrating motor of platform 8.CCD video camera 2 9. computer, 11. charging aperture, 12. working face, 13. discharging openings 31.
Glass window.
Embodiment
This case is described in further detail with reference to the accompanying drawings and detailed description.
With reference to figure 1, a kind of double CCD sand materials video imaging granularity particle shape analytical equipments, including oscillating feeder 1, light source
2nd, splicing cylinder 3, the first ccd video camera 4, base 5, camera lens 6, focusing platform 7, the second ccd video camera 8, computer 9；
Oscillating feeder 1 includes charging aperture 11, working face 12, discharging opening 13, vibrating motor 14；Splicing cylinder 3 includes cylinder
31 and glass window 32；
The working face tilts down setting along charging aperture 11 to discharging opening 13 so that material is from charging aperture 11 to discharging
Mouth 13 slides；The vibrating motor 14 drives working face 12 to vibrate；The vibrating motor 14 includes an eccentric block, changes the bias
The position of block, the Oscillation Amplitude of the oscillating feeder 1 change therewith, and the blanking velocity of material also changes therewith.So
It can ensure that the first ccd video camera 4, the second ccd video camera 8 can photograph clearly material image.
The cylinder 31 is placed in the vertical direction, and its upper end connects with discharging opening 13；The glass window 32 is sheathed on
Outside the side wall of cylinder 31；Light source 2 is positioned over outside the side of glass window 32, and the light source 2 is high-brightness LED spot light, what it sent
Light exposes to glass window 32；First ccd video camera 4 is set with 32 corresponding position of glass window in the cylinder 31；The glass
The opposite side of window 32 sets second ccd video camera 8；The camera lens 6 is set between second ccd video camera 8 and glass window 32；Institute
The lower section that base 5 is arranged on camera lens 6 is stated, focusing platform 7 is positioned on base 5, and along vertical direction and the contact branch of camera lens 6
Support；The camera lens 6 is bilateral or unilateral telecentric lens, and multiplication factor is from 2 times to 0.1 times.Measurement range is 10 μm of -40mm.
First ccd video camera 4, the second ccd video camera 8 are connected by data wire with computer 9；First CCD
Shutter speed >=5ms of video camera 4, the second ccd video camera 8, storage at least 50 width images per second.
First ccd video camera 4, the second ccd video camera 8 are placed in by External synchronization mode by SYNC toggle switch, and by
One ccd video camera 4, the outer synchronous input end mouth of the second ccd video camera 8 are connected to an external synchronous generator simultaneously
On.
First high speed CCD camera 4 obtains sphericity value α1, the second high speed CCD camera 8 acquirement sphericity value α2, draw
Sphericity averageSimilarly, circularity average value is drawnApparent density average valueBulk density average value
Detailed process is as follows：
After image is saved in computer 9, gray processing, histogram equalization, intermediate value filter are carried out to image with MATLAB softwares
This 4 kinds pretreatments of ripple, image binaryzation.
Two-dimensional image feature then presses sphericity formula
FF is calculated respectively1And FF2, wherein A is particle area, and P is particle circumference, is measured respectively from image.
By formula
Draw circularity average value
Apparent density and bulk density ρ1And ρ2According to《Building sand》Formula is calculated in GB/T 14684-2011, most
Basis draws average value eventuallyWith
Image three-dimensional feature uses for reference Wu Bo and Li Gu grey hair tables《The assessment method of aggregate particle shape and to workability of concrete
The influence of energy》The sphericity value stated in paper is an important indicator for evaluating coarse aggregate particle shape and aggregate quality, and fine aggregate is then
Weighed by circularity as index.
According to sphericity value
D=i × b
V=d × s
Wherein i is coefficient, and d is thickness, and s is area, and ρ is density, and a is length, and b is width, and m is quality, and in addition to i, remaining is equal
For measured value in image.
According to above formula, α is calculated1And α2, by formulaDraw sphericity average
A kind of above-mentioned double CCD sand materials video imaging granularity particle shape analytical equipments, object is dynamic continous way stream.Should
Device is imaged using double ccd video cameras, and without deliberately installing dispersal device additional, stream passes through detection zone without individual layer.It is simple in construction,
Easily realize.The synchronous acquisition task of double ccd video cameras is realized using outer synchronized links mode, same section of stream is adopted in real time
Collection graphics saving is simultaneously transferred to computer, by results averaged, infinitely also original initial stream granularity particle shape state.It is easy to be reliable.
It is described above, only it is preferred embodiment of the present utility model, not technical scope of the present utility model is made
Any restrictions, the present embodiment are intended to the idea and operation principle for illustrating the utility model, therefore every according to skill of the present utility model
Art substantially makees the subtle modifications, equivalent variations and modifications of any shape and structure to above example, still falls within this practicality
In the range of new technique scheme.
Claims (6)
- A kind of 1. double CCD sand materials video imaging granularity particle shape analytical equipments, it is characterised in that including：Oscillating feeder (1), light Source (2), splicing cylinder (3), the first ccd video camera (4), base (5), camera lens (6), focusing platform (7), the second ccd video camera (8), computer (9)；Oscillating feeder (1) includes charging aperture (11), working face (12), discharging opening (13), vibrating motor (14)；Splicing cylinder (3) Including cylinder (31) and glass window (32)；The working face tilts down setting along charging aperture (11) to discharging opening (13) so that material is from charging aperture (11) to going out Material mouth (13) is slided；The vibrating motor (14) moves working face (12) vibration；The cylinder (31) is placed in the vertical direction, and its upper end connects with discharging opening (13)；The glass window (32) is arranged In outside the side wall of cylinder (31)；Light source (2) is positioned over outside the side of glass window (32), and its light sent exposes to glass window (32)； Position corresponding with glass window (32) sets first ccd video camera (4) in the cylinder (31)；The glass window (32) it is another Side sets second ccd video camera (8)；The camera lens (6) is set between the second ccd video camera (8) and glass window (32)；It is described Base (5) is arranged on the lower section of camera lens (6), and focusing platform (7) is positioned on base (5), and along vertical direction and camera lens (6) Contact supports；First ccd video camera (4), the second ccd video camera (8) are connected by data wire with computer (9)；The image that the computer (9) is shot by the first high speed CCD camera (4) obtains sphericity value α1, by second at a high speed The image of ccd video camera (8) shooting obtains sphericity value α2, draw sphericity averageSimilarly, computer (9) draws circularity Average valueApparent density average valueBulk density average value
- A kind of 2. double CCD sand materials video imaging granularity particle shape analytical equipments as claimed in claim 1, it is characterised in that：Institute Stating vibrating motor (14) includes an eccentric block, changes the position of the eccentric block, the Oscillation Amplitude of the oscillating feeder (1) is therewith Change, the blanking velocity of material also changes therewith.
- A kind of 3. double CCD sand materials video imaging granularity particle shape analytical equipments as claimed in claim 1, it is characterised in that：Institute It is high-brightness LED spot light to state light source (2).
- A kind of 4. double CCD sand materials video imaging granularity particle shape analytical equipments described in claim 1, it is characterised in that：It is described Camera lens (6) is bilateral or unilateral telecentric lens, and for multiplication factor from 2 times to 0.1 times, measurement range is 10 μm of -40mm.
- A kind of 5. double CCD sand materials video imaging granularity particle shape analytical equipments as claimed in claim 1, it is characterised in that：Institute State the first ccd video camera (4), shutter speed >=5ms of the second ccd video camera (8), storage at least 50 width images per second.
- A kind of 6. double CCD sand materials video imaging granularity particle shape analytical equipments as claimed in claim 1, it is characterised in that：It is logical Cross SYNC toggle switch and the first ccd video camera (4), the second ccd video camera (8) are placed in External synchronization mode, and the first CCD is taken the photograph Camera (4), the outer synchronous input end mouth of the second ccd video camera (8) are connected on an external synchronous generator simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720739502.5U CN206945488U (en) | 2017-06-23 | 2017-06-23 | Double CCD sand materials video imaging granularity particle shape analytical equipments |
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| CN201720739502.5U CN206945488U (en) | 2017-06-23 | 2017-06-23 | Double CCD sand materials video imaging granularity particle shape analytical equipments |
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| CN206945488U true CN206945488U (en) | 2018-01-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144504A (en) * | 2017-06-23 | 2017-09-08 | 福建南方路面机械有限公司 | A kind of pair of CCD sand material video imaging granularity particle shape analytical equipment |
| CN112881246A (en) * | 2021-01-26 | 2021-06-01 | 苏州胤煌精密仪器科技有限公司 | Image method particle size analyzer capable of continuously changing magnification |
-
2017
- 2017-06-23 CN CN201720739502.5U patent/CN206945488U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144504A (en) * | 2017-06-23 | 2017-09-08 | 福建南方路面机械有限公司 | A kind of pair of CCD sand material video imaging granularity particle shape analytical equipment |
| CN112881246A (en) * | 2021-01-26 | 2021-06-01 | 苏州胤煌精密仪器科技有限公司 | Image method particle size analyzer capable of continuously changing magnification |
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Address after: 362000 Fujian province Quanzhou Fengze District High-tech Industrial Park Sports Street No. 700 Patentee after: Fujian Nanfang pavement machinery Co., Ltd Address before: 362000 Fujian province Quanzhou Fengze District High-tech Industrial Park Sports Street No. 700 Patentee before: FUJIAN SOUTH HIGHWAY MACHINERY Co.,Ltd. |