CN107091796A - The optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in a kind of measurement pipe stream - Google Patents
The optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in a kind of measurement pipe stream Download PDFInfo
- Publication number
- CN107091796A CN107091796A CN201710445657.2A CN201710445657A CN107091796A CN 107091796 A CN107091796 A CN 107091796A CN 201710445657 A CN201710445657 A CN 201710445657A CN 107091796 A CN107091796 A CN 107091796A
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- lens camera
- somebody
- glass tube
- transparent glass
- measured
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- 239000002245 particle Substances 0.000 title claims abstract description 47
- 230000003287 optical effect Effects 0.000 title claims abstract description 39
- 238000005259 measurement Methods 0.000 title claims abstract description 21
- 239000008187 granular material Substances 0.000 title claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 31
- 229920005479 Lucite® Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 11
- 238000000917 particle-image velocimetry Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N2015/03—Electro-optical investigation of a plurality of particles, the analyser being characterised by the optical arrangement
Abstract
The invention discloses the optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in a kind of measurement pipe stream, including the case that is in the light, laser, ordinary optical lens camera, micro-lens camera；The level in case that is in the light is provided through transparent glass tube to be measured；Ordinary optical lens camera, micro-lens camera are symmetricly set in the both sides of transparent glass tube to be measured；It is in the light and level crossing horizontal by 45 ° of angles is symmetrically arranged with the front side wall of case；The positive upper end of transparent glass tube to be measured offers laser light incident hole；Laser light incident is fixedly installed laser above hole；The horizontal both sides of transparent glass tube to be measured are provided with observation window, and the central region of ordinary optical lens camera and micro-lens camera is in same horizontal line after being reflected through level crossing with the center of observation window.The present invention solves single lens and shoots the problem of particle size range is limited；Measurement result is accurate, operability is stronger, can be widely applied to the acquisition of conduit section image.
Description
Technical field
Match somebody with somebody and its divide the present invention relates to across particle diameter size granule level in a kind of optical system, more particularly to a kind of measurement pipe stream
The optical system of cloth, belongs to coarseparticulate pipe material Hydraulic transportation technical field.
Background technology
Because environmental protection and the demand of resources effective utilization, the phase flow pipeline hydraulic transportation of the material containing coarse granule are used widely.
Many engineerings need to be crushed bulk materials before conveying, so may result in non-homogeneous coarse grained generation.And it is thick
Particle motion state image contains particle various features information, is the important information source for describing coarse granule motion feature.Gu
The breakthrough of many knotty problems both depends on the development of particle motion state detection technology in gas-liquid two-phase liquid, in particular for non-
Uniform coarse grained detection technique.
Current most popular particle flow measurement technology is PIV (Particle Image Velocimetry) technology,
Also known as particle image velocimetry method.PIV technologies grow up on the basis of FLOW VISUALIZATION and computer image processing technology
A kind of two-dimentional undisturbed flow field measurement technique, can both carry out the measurement of single-point, the instantaneous picture in whole flow field can be obtained again,
Apply including in the various complicated flow measurements including vortex, turbulent flow.Based on the measuring principle of PIV technologies, John-Plutarch
Et al. disclose the particle detector of measurable multiple equipment section and different grain size scope a kind of, but this monitor can not be supervised simultaneously
Survey the Particle Behavior situation of same position different grain size scope.By retrieval and inquisition, do not find also to same conduit section
The document report of different grain size range of particle is monitored using double camera.
The content of the invention
In order to solve the weak point present in above-mentioned technology, the invention provides across particle diameter yardstick in a kind of measurement pipe stream
Grain composition and its optical system of distribution.
In order to solve the above technical problems, the technical solution adopted by the present invention is：Across particle diameter yardstick in a kind of measurement pipe stream
Grain composition and its optical system of distribution, including the case that is in the light, it also includes laser, ordinary optical lens camera, Macro Lens
Head camera；The level in case that is in the light is provided through transparent glass tube to be measured；It is in the light in case and is fixedly installed ordinary optical mirror respectively
Head camera, micro-lens camera；Ordinary optical lens camera, micro-lens camera are symmetricly set in the two of transparent glass tube to be measured
Side；
It is in the light on the front side wall of case and is symmetrically arranged with two level crossings horizontal by 45 ° of angles；Clear glass to be measured
The positive upper end of pipe offers laser light incident hole；Laser light incident is fixedly installed laser above hole；Transparent glass tube to be measured
Horizontal both sides are provided with observation window, and the central region of ordinary optical lens camera and micro-lens camera reflects through level crossing
The center with observation window is in same horizontal line afterwards.
Ordinary optical lens camera is used for the particle for capturing 1~10mm particle size ranges；Micro-lens camera is used to capture 0.1
The particle of~1mm particle size ranges.
When Particle Behavior speed is excessive, by ordinary optical lens camera and micro-lens camera using height special PIV
Fast CCD camera is replaced, and prevents that particle motion blur phenomenon is serious, it is difficult to differentiate particle shape.
Transparent glass tube to be measured is wall thickness 5mm high intensity lucite tube；Clear glass to be measured where observation window
The thickness of pipe is 3mm.
Transparent glass tube to be measured is square, and the internal diameter of glass tube is equal with the length of side of observation window.
The light that laser is sent is linear light post, and light beam thickness is 3mm.
The present invention is shot simultaneously using double camera to conduit section, solves single lens shooting particle size range limited
The problem of；Stream field undisturbed itself is acted on, and measurement result is accurate；Simple in construction, easy to adjust, operability is stronger；Volume
Smaller, saving installing space；The acquisition of conduit section image is can be widely applied to, consequently facilitating across particle diameter yardstick in measurement pipe stream
Grain composition and its distribution.
Brief description of the drawings
Fig. 1 is main-vision surface structural representation of the invention.
Fig. 2 is Fig. 1 top view.
Fig. 3 is Fig. 1 right view.
In figure：1st, ordinary optical lens camera；2nd, micro-lens camera；3rd, laser；4th, transparent glass tube to be measured；5th, see
Examine form；6th, level crossing；7th, be in the light case；8th, laser light incident hole.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 3, the present invention includes the case 7 that is in the light, and it also includes laser 3, ordinary optical lens camera 1, microspur
Lens camera 2；The level in case 7 that is in the light is provided through transparent glass tube 4 to be measured, and coarse granule material passes through transparent glass tube to be measured
4 are conveyed；It is in the light in case 7 and is fixedly installed ordinary optical lens camera 1, micro-lens camera 2 respectively；Ordinary optical camera lens
Camera 1, micro-lens camera 2 are symmetricly set in the both sides of transparent glass tube 4 to be measured；
Be in the light on the front side wall of case 7 and be symmetrically arranged with two level crossings 6 horizontal by 45 ° of angles, the level crossing 6 with
Angle between other side walls is 135 °；Ordinary optical lens camera 1, micro-lens camera 2 are directed to be measured by level crossing 6
The observation window 5 of the horizontal both sides of transparent glass tube 4；The central region of ordinary optical lens camera 1 and micro-lens camera 2 is through flat
Center after the reflection of face mirror 6 with observation window 5 is in same horizontal line.The positive upper end of transparent glass tube 4 to be measured offers sharp
Incident light hole 8；The top in laser light incident hole 8 is fixedly installed laser 3, and laser 3 is directed at two sights by laser light incident hole 8
Examine the pipeline between form 5；
Ordinary optical lens camera 1 can capture the particle of 1~10mm particle size ranges；Micro-lens camera 2 can capture 0.1~
The particle of 1mm particle size ranges.When Particle Behavior speed is excessive, ordinary optical lens camera 1 and micro-lens camera 2 can be adopted
It is replaced with the special high-speed CCD cameras of PIV, prevents that particle motion blur phenomenon is serious, it is difficult to differentiate particle shape.
Transparent glass tube 4 to be measured is wall thickness 5mm high intensity lucite tube；For the ease of observation, the place of observation window 5
Transparent glass tube to be measured 4 thickness be 3mm.
Transparent glass tube 4 to be measured is square, and the internal diameter of glass tube is equal with the length of side of observation window 5.
The light that laser 3 is sent is linear light post, and light beam thickness is 3mm.
The present invention specifically used method be：Ordinary optical lens camera 1 and micro-lens camera 2 are arranged on to be measured
The both sides of bright glass tube 4, laser 3 are arranged on the surface of two observation windows 5, and starting laser 3 makes linear light post just
Entered by laser light incident hole 8 in pipeline.The case 7 that is in the light is covered, can do small position adjustment makes the He of ordinary optical lens camera 1
After middle the heart channel of Hang-Shaoyin level crossing 6 reflection of the central region and observation window 5 of micro-lens camera 2 in the same horizontal line.Pass through control
The outside pilot system of system, after making particle stable in the duct, you can control ordinary optical lens camera and micro-lens phase
Machine starts to shoot work.
The present invention is shot simultaneously by the principle of PIV e measurement technologies using double camera to conduit section, can be effectively real
Now across grain diameter yardstick is shot, consequently facilitating across particle diameter size granule level is matched somebody with somebody and its is distributed in measurement pipe stream；It is of the invention and existing
There is technology to compare, have the advantage that：
1st, shoot visual field it is larger, solve single lens shoot particle size range it is limited the problem of, realize to Guan Liuzhong across
The measurement of particle diameter size granule；
2nd, stream field undisturbed itself is acted on；
3rd, simple in construction, easy to adjust, operability is stronger.
Above-mentioned embodiment is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the range of technical scheme, also belong to this hair
Bright protection domain.
Claims (6)
1. the optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in a kind of measurement pipe stream, including the case that is in the light (7), its feature
It is：It also includes laser (3), ordinary optical lens camera (1), micro-lens camera (2)；The case that is in the light (7) reclaimed water
It is flat to be provided through transparent glass tube to be measured (4)；Be in the light in case (7) be fixedly installed ordinary optical lens camera (1) respectively, it is micro-
Away from lens camera (2)；The ordinary optical lens camera (1), micro-lens camera (2) are symmetricly set in transparent glass tube to be measured
(4) both sides；
Two level crossings (6) horizontal by 45 ° of angles are symmetrically arranged with the front side wall of the case that is in the light (7)；It is described to treat
The positive upper end for surveying transparent glass tube (4) offers laser light incident hole (8)；It is fixedly installed above the laser light incident hole (8)
Laser (3)；The horizontal both sides of transparent glass tube (4) to be measured are provided with observation window (5), ordinary optical lens camera (1)
Center after being reflected with the central region of micro-lens camera (2) through level crossing (6) with observation window (5) is in same horizontal line
On.
2. the optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in measurement pipe stream according to claim 1, it is special
Levy and be：The ordinary optical lens camera (1) is used for the particle for capturing 1~10mm particle size ranges；The micro-lens camera
(2) it is used for the particle for capturing 0.1~1mm particle size ranges.
3. the optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in measurement pipe stream according to claim 1 or 2, its
It is characterised by：It is when Particle Behavior speed is excessive, ordinary optical lens camera (1) and micro-lens camera (2) is special using PIV
High-speed CCD camera is replaced, and prevents that particle motion blur phenomenon is serious, it is difficult to differentiate particle shape.
4. the optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in measurement pipe stream according to claim 1, it is special
Levy and be：The transparent glass tube to be measured (4) is wall thickness 5mm high intensity lucite tube；Where the observation window (5)
The thickness of transparent glass tube (4) to be measured is 3mm.
5. the optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in the measurement pipe stream according to claim 1 or 4, its
It is characterised by：The transparent glass tube to be measured (4) is square, and the internal diameter of glass tube is equal with the length of side of observation window (5).
6. the optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in measurement pipe stream according to claim 1, it is special
Levy and be：The light that the laser (3) sends is linear light post, and light beam thickness is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710445657.2A CN107091796A (en) | 2017-06-14 | 2017-06-14 | The optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in a kind of measurement pipe stream |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710445657.2A CN107091796A (en) | 2017-06-14 | 2017-06-14 | The optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in a kind of measurement pipe stream |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107091796A true CN107091796A (en) | 2017-08-25 |
Family
ID=59640632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710445657.2A Pending CN107091796A (en) | 2017-06-14 | 2017-06-14 | The optical system that across particle diameter size granule level is matched somebody with somebody and its is distributed in a kind of measurement pipe stream |
Country Status (1)
| Country | Link |
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| CN (1) | CN107091796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195419A (en) * | 2017-12-21 | 2018-06-22 | 中山大学 | A kind of system and method for more observation of novel fluid |
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| CN201072403Y (en) * | 2007-07-03 | 2008-06-11 | 浙江大学 | Device for measuring solid particle three-dimensional concentration field and velocity field in gas/solid two-phase stream |
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| WO2016142859A1 (en) * | 2015-03-08 | 2016-09-15 | University Of The Witwatersrand, Johannesburg | Method and system for illuminating seeding particles in flow visualisation |
| CN206804477U (en) * | 2017-06-14 | 2017-12-26 | 中央民族大学 | A kind of measurement pipe stream mid-span particle diameter size granule grading and its optical system of distribution |
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2017
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Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464288A (en) * | 2002-06-05 | 2003-12-31 | 中国科学技术大学 | Particle field total-field measurement process and apparatus based on laser sheet optical image-forming |
| US20070268602A1 (en) * | 2004-03-31 | 2007-11-22 | The Tokyo Electric Power Company, Incorporated | Fluid Measuring System and Long Focal Point Optical System |
| CN201072403Y (en) * | 2007-07-03 | 2008-06-11 | 浙江大学 | Device for measuring solid particle three-dimensional concentration field and velocity field in gas/solid two-phase stream |
| CN101509931A (en) * | 2009-03-16 | 2009-08-19 | 浙江大学 | Method and apparatus for on-line measuring two-dimension speed and particle size distribution of granules in pipe |
| CN102652257A (en) * | 2009-12-11 | 2012-08-29 | 拜尔技术服务有限责任公司 | Means for detecting luminescent and/or light-scattering particles in flowing liquids |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20170825 |