CN109341599A - Utilize the contactless powder material angle of repose measuring method and device of laser-measured height - Google Patents
Utilize the contactless powder material angle of repose measuring method and device of laser-measured height Download PDFInfo
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- CN109341599A CN109341599A CN201811468260.6A CN201811468260A CN109341599A CN 109341599 A CN109341599 A CN 109341599A CN 201811468260 A CN201811468260 A CN 201811468260A CN 109341599 A CN109341599 A CN 109341599A
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- repose
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- 239000000843 powder Substances 0.000 title claims abstract description 86
- 239000000463 material Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 44
- 239000000725 suspension Substances 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 17
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 abstract description 4
- 241000446313 Lamella Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000011326 mechanical measurement Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
-
- 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
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present disclosure discloses the contactless powder material angle of repose measuring methods and device using laser-measured height, comprising: the powder material with measurement angle of repose is placed in rectangular vessel, the rectangular vessel is fixed on suspension；It automatically moves and is moved under upper under non-contact with the rectangular vessel and drive in power of component along rectangular vessel, when being moved to the highest position of powder material, stop movement, laser detection component measures the height between airborne laser range finder receiving end and airborne laser range finder, then the height for obtaining powder material, the angle of repose of powder material can be obtained further according to the base length of rectangular vessel.The angle of repose of the disclosure is obtained by measurement height, to obtain tangent value, by the law of tangents, acquires accumulation angle, and existing literature majority is direct measurement angle of repose, and the angle of repose of the disclosure measured is more acurrate.
Description
Technical field
This disclosure relates to which mechanical measurement technique field, is filled more particularly to using the measurement of contactless powder material angle of repose
It sets and method.
Background technique
The fluidity determining of powder material has important practical significance and researching value.Angle of repose is characterization Flow of Goods and Materials
The accurate measurement of the important parameter of characteristic and frictional behavior, angle of repose is a technological difficulties.
Publisher exists in the prior art using the quasi- two-dimensional rectangle container of a lower ending opening and measures angle of repose.
Powder is filled up in rectangular vessel first, upper surface is struck off with scraper plate.Then lower ending opening is opened, under powder meeting freedom
It falls, after whereabouts, will form two symmetrical accumulation angles.At this point, the length L of bottom surface is known, as long as obtaining height H
It can be obtained by the tangent value for angle of stopping, to obtain angle of repose.Currently, can be measured using the method for hand dipping high
Degree, but there are problems that two, first is that measurement inaccuracy, second is that being easy to encounter rectangular vessel in measurement process, to influence
Measurement accuracy.
The automatic measurement technology retrieved at present and the difference of disclosed technique scheme are:
1, the angle of repose of disclosed technique scheme is the angle of repose of a powder lamella, and existing angle of stopping all is one
The angle of repose of heap powder stacking, the angle of repose of disclosed technique scheme are more easily measured.
2, the angle of repose of disclosed technique scheme is obtained by measurement height, to obtain tangent value, passes through tangent
Theorem acquires accumulation angle, and existing literature majority is direct measurement angle of repose, the angle of repose of disclosed technique scheme measured
It is more acurrate.
Disclosure
In order to solve the deficiencies in the prior art, present disclose provides utilize contactless powder material angle of repose measurement dress
It sets, can be realized the automatic measurement of powder material, in addition, due to using contactless measurement method, measurement accuracy is higher.
Utilize the contactless powder material angle of repose measurement device of laser-measured height, comprising:
The powder material with measurement angle of repose is placed in rectangular vessel, the rectangular vessel is fixed on suspension；
It automatically moves and is moved under upper under non-contact with the rectangular vessel and drive in power of component along rectangular vessel,
When being moved to the highest position of powder material, stop movement, laser detection component measures airborne laser range finder receiving end and swashs
Height between ligh-ranging device then obtains the height of powder material, powder can be obtained further according to the base length of rectangular vessel
The angle of repose of body material.
One end of further technical solution, the suspension is fixed on column, and the other end is hanging, and the column is fixed on
On pedestal, the pedestal is parallel with suspension, the column with pedestal is vertical with suspension connect.
Further technical solution, the component that automatically moves includes motor, and the output end of the motor is connected to shaft coupling
Device, the shaft coupling are connected to lead screw, and the lead screw and sliding block constitute ballscrew nut fitting, and guide post and lead screw are arranged in parallel,
The lead screw rotates driven by the motor, to move up and down with movable slider along guide post, sliding block and mobile suspension are to be connected in
Together, the two moves up and down simultaneously.
Further technical solution, the length of the mobile suspension are greater than the length of rectangular vessel, and in mobile suspension
Laser emitter and laser pickoff are respectively arranged at position beyond rectangular vessel.
Further technical solution is provided with airborne laser range finder beyond one end of rectangular vessel in the mobile suspension and receives
End, airborne laser range finder receiving end underface and the position being located on pedestal are provided with airborne laser range finder, airborne laser range finder receiving end
And airborne laser range finder constitutes laser detection component.
Further technical solution, laser emitter, laser pickoff, motor, airborne laser range finder are connected to controller,
When mobile suspension is moved to powder top, due to the barrier of powder, laser pickoff fails for the laser signal of laser emitter
It receives, controller obtains an input signal, controls motor stalls, measures airborne laser range finder receiving end and laser at this time
Height between range finder.
Further technical solution, the calculation formula of the height H of powder material are as follows:
H=h1+h4-h3+h2
Wherein, h1 is the height between airborne laser range finder receiving end and airborne laser range finder, and h2 is airborne laser range finder receiving end
Height between laser central axes, h3 are the height between pedestal table top and powder material bottom, and h4 is laser ranging
The height of device.
Further technical solution, airborne laser range finder receiving end are a bottom plate.
Embodiment of the disclosure, which is also disclosed, measures system using the contactless powder material angle of repose of laser-measured height,
Including controller, the controller is connected with using contactless powder material angle of repose measurement device, and control automatically moves group
Part is non-contact with rectangular vessel and moves under upper along rectangular vessel, when being moved to the highest position of powder material,
Stop movement；
Height between the controller control laser detection component measurement airborne laser range finder receiving end and airborne laser range finder,
Then the height for obtaining powder material, the angle of repose of powder material can be obtained further according to the base length of rectangular vessel.
Embodiment of the disclosure also discloses the contactless powder material angle of repose measuring method using laser-measured height,
Include:
It is non-contact with rectangular vessel and move under upper along rectangular vessel that controller control automatically moves component, works as shifting
When moving to the highest position of powder material, barrier of the laser signal that laser emitter issues due to powder, laser pickoff
Fail to receive, at this point, controller control motor stops movement；
Controller controls the height between laser detection component measurement airborne laser range finder receiving end and airborne laser range finder, then
The height for obtaining powder material, the angle of repose of powder material can be obtained further according to the base length of rectangular vessel；
Wherein, H is the height of powder material, and L is the length of the bottom surface of rectangular vessel；
H=h1+h4-h3+h2
Wherein, h1 is the height between airborne laser range finder receiving end and airborne laser range finder, and h2 is airborne laser range finder receiving end
Height between laser central axes, h3 are the height between pedestal table top and powder material bottom, and h4 is laser ranging
The height of device.
Compared with prior art, the beneficial effect of the disclosure is:
Compared with existing measuring technique, there are two clear advantages for the disclosure:
1, the angle of repose of the disclosure is the angle of repose of a powder lamella, and existing angle of stopping all is a pile powder heap
The angle of repose at the angle of repose of pile, the disclosure is more easily measured.
2, the angle of repose of the disclosure is obtained by measurement height, to obtain tangent value, by the law of tangents, acquires
Angle is accumulated, and existing literature majority is direct measurement angle of repose, the angle of repose of the disclosure measured is more acurrate.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the overall structure diagram of embodiment of the present disclosure；
Fig. 2 is the ballscrew nut fitting schematic diagram of embodiment of the present disclosure；
Fig. 3 is the measurement process schematic diagram of embodiment of the present disclosure；
Fig. 4 is the ball screw nut measurement process schematic diagram of embodiment of the present disclosure；
In figure, 1. rectangular vessels, 2, mobile suspension, 3, laser emitter, 4, airborne laser range finder receiving end, 5, laser pick-off
Device, 6, airborne laser range finder, 7, guide post, 8, lead screw, 9, sliding block, 10, pedestal, 11, column, 12, suspension, 14, shaft coupling, 15, electricity
Machine.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In a kind of typical examples of implementation of the disclosure, as shown in Figure 1, disclosing the contactless powder using laser-measured height
Body material angle of repose measurement device, using the method automatic measurement powder height of laser ranging.In order to realize automatic laser measurement
Powder height needs three components to realize, including automatically moves component, laser detection component and laser ranging component.
Wherein, automatically moving component includes mobile suspension 2, guide post 7, lead screw 8, sliding block 9, shaft coupling 14, motor 15.
Laser detection component includes: laser emitter 3 and laser pickoff 5.
Laser ranging component includes airborne laser range finder receiving end 4, airborne laser range finder 6.
Rectangular vessel 1 is fixed on suspension 2, and one end of suspension 2 is fixed on column 11, and the other end is hanging, the column
11 are fixed on pedestal 10, and the pedestal 10 is parallel with suspension 2, the column with pedestal is vertical with suspension connect.
As shown in Fig. 2, guide post 7 play the guiding role, lead screw 8 and sliding block 9 constitute ballscrew nut fitting, and lead screw 8 is in motor
Drive under slowly rotate, thus slowly mobile with movable slider 9, sliding block 9 and mobile suspension 2 are together with solid chain, and the two is same
Shi Yidong, laser emitter 3 and laser pickoff 5 are separately mounted to the both ends of mobile suspension.One end of mobile suspension is also set up
There is airborne laser range finder receiving end, herein, airborne laser range finder receiving end can be set also can be set in the left end of mobile suspension
Right end is provided with airborne laser range finder on pedestal, and airborne laser range finder is located at the underface of airborne laser range finder receiving end.
When specific works, as shown in Figure 3,4, after the completion of powder accumulation, drive of the mobile suspension 2 in ballscrew nut fitting
Under move from top to bottom, at this point, the laser signal of laser emitter 3 is received by laser pickoff 5.When mobile suspension 2 is moved to
When powder top, due to the barrier of powder, laser pickoff 5 fails to receive for the laser signal of laser emitter 3, at this time PLC
An input signal is obtained, so that motor 15 stops operating.Measure the height of airborne laser range finder and airborne laser range finder receiving end 4 at this time
Degree, obtains H by simply converting.
Wherein:
H=h1+h4-h3+h2
Wherein, H is lamella triangle powder height, and h1 is the height between airborne laser range finder receiving end 4 and airborne laser range finder 6
Degree, h2 is the height between airborne laser range finder receiving end and laser central axes, and h3 is work top and lamella triangle powder bottom
Height between portion, h4 are the height of laser range finder 6.
In the specific implementation, mobile suspension 2 must be moved slowly, avoid causing automatic because system response time is too long
Moving parts standard is stopped not in time, so as to cause measurement error.
The sensitivity of fine adjustment laser emitter 3 and laser pickoff 5 prevents maloperation, while preventing laser
Not sensitive enough the caused measurement error of transmitter 3 and laser pickoff 5.
The response time between mobile suspension 2 and laser emitter 3 and laser pickoff 5 is adjusted, test of many times is passed through
The delay for demarcating mobile suspension 2 responds stroke, reduces its influence of delay response to measurement height H.
Embodiment of the disclosure, which is also disclosed, measures system using the contactless powder material angle of repose of laser-measured height,
Including controller, the controller is connected with using contactless powder material angle of repose measurement device, and control automatically moves group
Part is non-contact with rectangular vessel and moves under upper along rectangular vessel, when being moved to the highest position of powder material,
Stop movement；
Height between the controller control laser detection component measurement airborne laser range finder receiving end and airborne laser range finder,
Then the height for obtaining powder material, the angle of repose of powder material can be obtained further according to the base length of rectangular vessel.
Embodiment of the disclosure also discloses the contactless powder material angle of repose measuring method using laser-measured height,
Include:
It is non-contact with rectangular vessel and move under upper along rectangular vessel that controller control automatically moves component, works as shifting
When moving to the highest position of powder material, barrier of the laser signal that laser emitter issues due to powder, laser pickoff
Fail to receive, at this point, controller control motor stops movement；
Controller controls the height between laser detection component measurement airborne laser range finder receiving end and airborne laser range finder, then
The height for obtaining powder material, the angle of repose of powder material can be obtained further according to the base length of rectangular vessel；
Wherein, H is the height of powder material, and L is the length of the bottom surface of rectangular vessel；
H=h1+h4-h3+h2
Wherein, h1 is the height between airborne laser range finder receiving end and airborne laser range finder, and h2 is airborne laser range finder receiving end
Height between laser central axes, h3 are the height between pedestal table top and powder material bottom, and h4 is laser ranging
The height of device.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. utilizing the contactless powder material angle of repose measurement device of laser-measured height, characterized in that include:
The powder material with measurement angle of repose is placed in rectangular vessel, the rectangular vessel is fixed on suspension；
It automatically moves and is moved under upper under non-contact with the rectangular vessel and drive in power of component along rectangular vessel, work as shifting
When moving to the highest position of powder material, stop movement, laser detection component measures airborne laser range finder receiving end and Laser Measuring
Away from the height between device, the height of powder material is then obtained, powder thing can be obtained further according to the base length of rectangular vessel
The angle of repose of material.
2. utilizing the contactless powder material angle of repose measurement device of laser-measured height as described in claim 1, characterized in that
One end of the suspension is fixed on column, and the other end is hanging, and the column is fixed on the base, and the pedestal and suspension are flat
Row, the column with pedestal is vertical with suspension connect.
3. utilizing the contactless powder material angle of repose measurement device of laser-measured height as described in claim 1, characterized in that
The component that automatically moves includes motor, and the output end of the motor is connected to shaft coupling, and the shaft coupling is connected to lead screw, institute
It states lead screw and sliding block constitutes ballscrew nut fitting, guide post and lead screw are arranged in parallel, and the lead screw rotates driven by the motor,
To move up and down with movable slider along guide post, sliding block and mobile suspension are fixed together, and the two moves up and down simultaneously.
4. utilizing the contactless powder material angle of repose measurement device of laser-measured height as claimed in claim 3, characterized in that
The length of the mobile suspension is greater than the length of rectangular vessel, and sets respectively at the position beyond rectangular vessel of mobile suspension
It is equipped with laser emitter and laser pickoff.
5. utilizing the contactless powder material angle of repose measurement device of laser-measured height as claimed in claim 4, characterized in that
One end of rectangular vessel is provided with airborne laser range finder receiving end, airborne laser range finder receiving end underface in the mobile suspension
And be located at the position on pedestal and be provided with airborne laser range finder, airborne laser range finder receiving end and airborne laser range finder constitute laser detection group
Part.
6. utilizing the contactless powder material angle of repose measurement device of laser-measured height as claimed in claim 5, characterized in that
Laser emitter, laser pickoff, motor, airborne laser range finder are connected to controller, when mobile suspension is moved to powder top
When, due to the barrier of powder, laser pickoff fails to receive for the laser signal of laser emitter, and controller obtains an input
Signal controls motor stalls, measures the height between airborne laser range finder receiving end and airborne laser range finder at this time.
7. utilizing the contactless powder material angle of repose measurement device of laser-measured height as claimed in claim 6, characterized in that
The calculation formula of the height H of powder material are as follows:
H=h1+h4-h3+h2
Wherein, h1 is the height between airborne laser range finder receiving end and airborne laser range finder, and h2 is airborne laser range finder receiving end and swashs
Height between light central axes, h3 are the height between pedestal table top and powder material bottom, and h4 is laser range finder
Highly.
8. utilizing the contactless powder material angle of repose measurement device of laser-measured height as claimed in claim 5, characterized in that
Airborne laser range finder receiving end is a bottom plate.
9. the contactless powder material angle of repose using laser-measured height measures system, characterized in that including controller, the control
Device processed is connected with using contactless powder material angle of repose measurement device, and it is non-contact with rectangular vessel that control automatically moves component
And moved under upper along rectangular vessel, when being moved to the highest position of powder material, stop movement；
Height between the controller control laser detection component measurement airborne laser range finder receiving end and airborne laser range finder, then
The height for obtaining powder material, the angle of repose of powder material can be obtained further according to the base length of rectangular vessel.
10. utilizing the contactless powder material angle of repose measuring method of laser-measured height, characterized in that include:
It is non-contact with rectangular vessel and move under upper along rectangular vessel that controller control automatically moves component, when being moved to
When the highest position of powder material, due to the barrier of powder, laser pickoff fails the laser signal that laser emitter issues
It receives, at this point, controller control motor stops movement；
Controller controls the height between laser detection component measurement airborne laser range finder receiving end and airborne laser range finder, then obtains
The angle of repose of powder material can be obtained further according to the base length of rectangular vessel for the height of powder material；
Wherein, H is the height of powder material, and L is the length of the bottom surface of rectangular vessel；
H=h1+h4-h3+h2
Wherein, h1 is the height between airborne laser range finder receiving end and airborne laser range finder, and h2 is airborne laser range finder receiving end and swashs
Height between light central axes, h3 are the height between pedestal table top and powder material bottom, and h4 is laser range finder
Highly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811468260.6A CN109341599B (en) | 2018-12-03 | 2018-12-03 | Non-contact powder material repose angle measuring method and device using laser to measure height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811468260.6A CN109341599B (en) | 2018-12-03 | 2018-12-03 | Non-contact powder material repose angle measuring method and device using laser to measure height |
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| Publication Number | Publication Date |
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| CN109341599A true CN109341599A (en) | 2019-02-15 |
| CN109341599B CN109341599B (en) | 2023-11-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398093A (en) * | 2020-04-21 | 2020-07-10 | 中国科学院宁波材料技术与工程研究所 | Detection equipment with powder fluidity characterization device |
| CN111965072A (en) * | 2020-07-28 | 2020-11-20 | 济南裕兴化工有限责任公司 | Method for evaluating titanium dioxide powder cohesion |
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| CN209310756U (en) * | 2018-12-03 | 2019-08-27 | 济南大学 | Utilize the contactless powder material angle of repose measurement device of laser-measured height |
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2018
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| US5986750A (en) * | 1997-06-25 | 1999-11-16 | Hosokawa Micron Corporation | Method and an apparatus for measuring the inclination angle of a pile of a powdery or granular material |
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| CN111965072A (en) * | 2020-07-28 | 2020-11-20 | 济南裕兴化工有限责任公司 | Method for evaluating titanium dioxide powder cohesion |
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| Publication number | Publication date |
|---|---|
| CN109341599B (en) | 2023-11-21 |
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