CN106769659A - A kind of sizing material surface viscosity measuring method and device - Google Patents
A kind of sizing material surface viscosity measuring method and device Download PDFInfo
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Abstract
The invention discloses a kind of sizing material surface viscosity measuring method, it is related to rubber size technical field of performance test, the method is the two panels test film by preparing same batch homogeneous viscous, is respectively labeled as a film and No. two films, ensures No. two surfaces of film without viscous force by pretreatment；By quality for m test ball with identical initial velocity respectively on a film and No. two films it is for linear motion, speed, the acceleration of ball are tested in motion process by obtaining, the surface viscosity power for calculating test film characterizes sizing material surface viscosity feature.Beneficial effects of the present invention：Impression deformation and windage effect are rejected, the degree of accuracy of characterization result is improved；Testing time is short, improves testing efficiency；Rolled using test ball single, be provided without that rolling is repeated several times, prevented test ball from rolling for the first time and extrude the result that rolling test is obtained behind vestige influence in sizing material；It is simple structure, easy to operate, can be to the sticky quantitatively characterizing on sizing material surface.
Description
Technical field
The present invention relates to rubber size technical field of performance test, it particularly relates to a kind of sizing material surface viscosity is measured
Method and device.
Background technology
Sizing material viscosity refers to that relative motion occurs after being contacted with object, and a kind of interaction for producing on the contact surface is cut
The viscous force of shear force, also referred to as sizing material.The sticky too high or too low production technology all to rubber has very big shadow
Ring.
With the international competition for developing rapidly and being growing more intense of Chinese tire industry, matter of the international market to Chinese tire
Amount proposes requirement higher.Viscosity control is the key factor for improving tire quality, and current tire plant is to sizing material surface viscosity
Detection more than 95% determine there is sizing material surface viscosity quantizing distortion, subsequent product quality tracing with artificial subjective judgement
The drawbacks of without foundation, make product quality hidden danger long-term existence.
By taking tyre production technology as an example, viscosity is too high, and the defects such as bubble are also easy to produce when film can be made to fit；It is too low, meeting again
There are the defects such as delamination with reference to bad in appearance.
In the industrial production, the measuring method of traditional sizing material surface tackiness amount is usually by two surfaces of identical sizing material
The regular hour is contacted under certain pressure effect, pressure is then cancelled, and measure the pulling force needed for pulling open sizing material.Now mostly
Several Tire production enterprises pulls open method using this film (apply PE films), but determines sizing material surface tackiness amount in this way,
There is test period is long, efficiency is low defect, it is necessary to special tester is tested, increased cost, and exist artificial
Error, this will be unable to obtain accurate sizing material surface tackiness amount, it is impossible to quantifies product stickiness amount, is unfavorable for changing new product
Good, innovation and quantification statistical analysis.
To the viscoelastic measurement of tread mix, mooney's viscosimeter, plastometer and rubber processing are utilized in actual production process
Analyzer is measured, but the time that these equipment are needed when measuring is more long, and such as mooney's viscosimeter does one group of experiment needs 5
Minute or so, it is less efficient, and these equipment are unfavorable for and the problems such as Automated library system.
A kind of sizing material surface viscosity tester is disclosed in prior art China number of patent application 201210131535.3, is wrapped
The level of including is provided with lower skateboard, and lower skateboard is hinged through hinge with upper slide, and upper slide middle part is hinged with support, the support other end and spine
The upper surface upper berth of plate frictional fit, lower skateboard and upper slide is covered with film to be measured, is placed with the film on upper slide
Measurement ball.In measurement, measurement ball is placed on the fixed position in slope top, and measurement ball is freely rolled to horizontal level and stops, reading
The horizontal range of rolling, you can measure the viscosity of film.Distance viscosity is small, big apart from short viscosity.
A kind of sizing material surface viscosity measuring method is disclosed in prior art China number of patent application 201210113645.7
And special measurement system, its measuring method is the bottommost that tested sizing material is placed in whole measuring system, the measuring system
It is the measuring system with inclined plane, test ball does the movement of falling object on inclined plane, by potential energy into kinetic energy, and
Repeatedly by tested sizing material, the adhesive characteristics of sizing material are characterized by calculating movement travel of the test ball on tested sizing material.
Both the above mode is all the adhesive characteristics by testing the movement travel of ball to characterize sizing material, according to test ball with
Certain initial velocity is rolled on the sizing material with homogeneous viscous, is acted on by viscous force, disregards air drag, and test ball does
Retarded motion, until stopping.
However, in actual mechanical process, viscosity is relatively lower, the influence of air drag is than larger；For some
Pure film, the resistance that collapses caused by test ball self gravitation also have impact on test result；The viscous of sizing material is characterized with movement travel
, there is certain deviation in property feature.
At present, for the technical problem for appearing above, effective solution is not suggested that.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of sizing material surface viscosity measuring method, can
Overcome the influence of air drag and indentation force to test result in test process, realize efficient quick, improve the anti-of measuring accuracy
Reflect the surface viscosity of sizing material.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of sizing material surface viscosity measuring method, the method is comprised the following steps：
S1 prepares the two panels test film of same batch homogeneous viscous, is respectively labeled as a film and No. two films, passes through
Crossing pretreatment ensures No. two surfaces of film without viscous force；By quality for m test ball with identical initial velocity respectively at No. one
It is for linear motion on film and No. two films；
S2 carries out mechanical analysis to motion process, and sizing material surface viscosity feature is characterized with the surface viscosity power of test film,
Testing kinematics formula of the ball on a film is：
FViscosity+FAir drag 1+FIndentation force=ma1 (1)
Testing kinematics formula of the ball on No. two films is：
FAir drag 2+FIndentation force=ma2 (2)
Air drag in formula (1) and formula (2) is determined by equation below：
FAir drag=(1/2) C ρ SV2 (3)
In formula (3), C is coefficient of air resistance, and ρ is atmospheric density, and S object front face areas, V is the phase of object and air
To movement velocity；
Formula (1) and formula (2) are made the difference and tried to achieve：
FViscosity=m (a1-a2)-(1/2)CρS(V1 2-V2 2) (4)；
S3 obtains speed, the acceleration of test ball in motion process, and the F in calculation procedure S2Viscosity。
Preferably, to No. two film pretreatment modes it is to paste a floor glassine paper on test film surface in the step S1.
Preferably, ball is tested in the step S1 movement of falling object acquisition is done on inclined plane in the test film
The initial velocity of upper motion.
Further, it is by image method Real-time Collection that test ball speed, the mode of acceleration are obtained in the step S3
Test the motion state of ball.
Preferably, described image method is to capture some images by the cycle of T in motion process, and with consecutive image, three are
One group.
Further, the method also includes that the position by testing ball in every group of image calculates test in adjacent two images
Displacement S0, S1 of ball.
Further, the method also includes passing through equation below (5) calculating speed v and acceleration a：
Further, the method also includes that calculating test ball is mutually interior in the same time on a film and No. two films respectively
Average speed v1、v2And acceleration a1、a2, and F is calculated by formula (4)Viscosity。
A kind of sizing material surface viscosity measurement apparatus, including level meter, the level meter upper surface are provided with test film, institute
State and wedge is installed with test film, the upper surface of the wedge is used as the first tracks for testing ball, the test
The upper surface of film as sizing material the second tracks, the side of the level meter is disposed with linear laser source hair along its length
Emitter, the opposite side of the level meter is disposed with the CCD industrial cameras towards the level meter.
Further, the level meter is disposed with transparent back panel along its length in the side for being provided with CCD industrial cameras,
And the transparent back panel is located at position between the level meter and the CCD industrial cameras.
Beneficial effects of the present invention：
1) sensitivity is high：10-20 acceleration was captured in 2 seconds by CCD industrial cameras；
2) degree of accuracy is high：Impression deformation and windage effect are rejected, the degree of accuracy of characterization result is improved；
3) time of measuring is short：Testing time foreshortens to 2S, improves testing efficiency；
4) rolled using test ball single, be provided without that rolling is repeated several times, prevent test ball from rolling in sizing material pressure for the first time
Go out and the result that test is obtained is rolled behind vestige influence；
5) simple structure, easy to operate, can be to the sticky quantitatively characterizing on sizing material surface, so that more accurate instruct generation
Process.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing for needing to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is test ball force analysis figure according to embodiments of the present invention；
Fig. 2 is one of sizing material surface viscosity measurement apparatus according to embodiments of the present invention
Fig. 3 is the two of sizing material surface viscosity measurement apparatus according to embodiments of the present invention.
Fig. 4 is the comparison diagram of experimental data acceleration.
Fig. 5 is the comparison diagram of experimental data acceleration absolute value.
In figure：
1st, CCD industrial cameras；2nd, transparent back panel；3rd, ball is tested；4th, test film；5th, tiltedly carve；6th, linear laser source transmitting
Device；.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained belongs to present invention protection
Scope.
As shown in figure 1, test ball is moved in glue surface, the power being subject in the movement direction：
FViscosity+FAir drag+FIndentation force=ma.
F in formulaViscosity、FIndentation forceIt is the component of power in the movement direction.For the test ball of certain mass, in sizing material
On the degree that collapses be certain, therefore, for collapsing what the angle on resistance and viscosity resistance and the direction of motion was all to determine,
Therefore the size of component in the direction of motion is only considered herein.
In motion, suffered air drag is test ball：
FAir drag=(1/2) C ρ SV2。
In formula, C is coefficient of air resistance；ρ is atmospheric density；S object front face areas；V is the relative fortune of object and air
Dynamic speed.From above formula, the size of air drag is directly proportional to coefficient of air resistance and front face area under normal circumstances, with speed
Degree square is directly proportional.Under normal circumstances for the air resistance coefficient of spheroid, our values are 0.5.
For indentation force it is difficult to measure.But for same test ball, it is assumed that their suffered pressures on film
Sunken resistance is identical.
Therefore, for this unknown indentation force, excluded present invention employs a kind of indirectly mode, this just can be
Unknown indentation force is approximately excluded.
Using the two panels test film of same batch homogeneous viscous, a film and No. two films are respectively labeled as.No. one
Film is not processed, and a floor glassine paper is pasted in No. two glue surfaces of film, it is ensured that No. two surfaces of film without viscous force, thus
Viscous drag can be excluded.So tested twice, kinematics formula is made the difference, you can excluded indentation force
Influence, and then calculate FViscosity。
In order to obtain acceleration of the test ball in sizing material motion process, surveyed the invention provides a kind of sizing material surface viscosity
Amount device, as Figure 2-3, including level meter, the level meter upper surface is provided with test film 4, in the test film 4
Wedge 5 is installed with, the upper surface of the wedge 5 is used as the first tracks for testing ball, the upper table of the test film
Face as sizing material the second tracks, the side of the level meter is disposed with linear laser source transmitter 6 along its length, described
The opposite side of level meter is disposed with the CCD industrial cameras 1 towards the level meter.
In one embodiment, described device include level meter and level meter upper strata, the level meter upper strata include wedge,
Upper strata foreboard, upper strata back plate.
The effect of wedge is test ball is had an initial velocity for stabilization, and has a lever to release in the top of wedge 5
Device is put, lever tail is metal device, and calutron is placed in lower section, when beginning is tested, electromagnet energization absorption lever makes
It tilts release steel ball, and test ball starts to roll, it is to avoid test ball magnetization is powered.
The Main Function of upper strata back plate is to prevent from test ball from running to be needed on side, and front and rear panel on the position of aperture
Linear laser source transmitter 6 is installed, the height of line laser transmitter to tread rubber is exactly equal to test the radius of ball, by transmitter
Laser is determined the present position of test ball by steel ball blocking.
Upper strata foreboard is the transparent back panel 2, and outside is installed with the CCD industrial cameras 1, the conduct of transparent back panel 2
Ray-collecting plate, while being also prevented from testing the reflective acquisition on picture of ball surface and producing influenceing, and then influences measuring accuracy.
Level meter upper strata uses integral structure, it is ensured that device it is horizontal and vertical all on horizontal level, while peace
Dress is convenient.
When the viscosity power to sizing material is calculated,
Testing kinematics formula of the ball on a film is：
FViscosity+FAir drag 1+FIndentation force=ma1,
In formula, m is test ball weight, a1It is acceleration of the test ball on a film, FAir drag 1It is to test ball at No. one
Air drag on film, and FAir drag 1=(1/2) C ρ SV1 2。
Testing kinematics formula of the ball on No. two films is：
FAir drag 2+FIndentation force=ma2,
In formula, m is test ball weight, a2It is acceleration of the test ball on No. two films, FAir drag 2It is to test ball at No. one
Air drag on film, and FAir drag 2=(1/2) C ρ SV2 2。
Two formulas make the difference and try to achieve by more than：
FViscosity=m (a1-a2)-(1/2)CρS(V1 2-V2 2)。
In formula, Air Drag values are different under friction speed, herein we assume that V is to test ball in a period of time
Interior average speed, therefore, as long as obtaining acceleration magnitude, average speed value of the test ball on a film, No. two films, i.e.,
F can be calculatedViscosityValue.
It is the motion state that ball is tested by image method Real-time Collection, this hair to obtain test ball speed, the mode of acceleration
It is bright when to video capture, use CCD industrial cameras.
The CCD that the present invention is used is the most commonly used imageing sensor of current machine vision.This kind of image device passes through light
Electricity conversion forms charge packet, is then shifted in the presence of driving pulse, amplifies output image signal.We increase frequency,
By computer digital animation, so we just can accurately and rapidly obtain the value of velocity and acceleration.
With T it is to capture some images in the cycle in motion process, with consecutive image three for one group, so continuous three figures
The distance of central point that ball is tested as in is the displacement within continuous two t times, will test the displacement of ball labeled as S0,
S1, S0 are the displacement in preceding cycle t, and S1 is the displacement in rear cycle t.
Wherein, the shift value that the central point of ball is tested in image can be continued by the way that image is synthesized into same image relay
Calculate, it is also possible to by image processing techniques, calculate the coordinate value of central point.
CCD industrial cameras it is per second it is interior can capture the up to a hundred photos of moving object, therefore image after to identification enters
When row acceleration is calculated, it is assumed that the motion that ball is tested in cycle t is uniformly retarded motion, and acceleration is steady state value.
Therefore, it can calculate average speed v and acceleration a of the test ball within the 2t times by equation below：
Captured by the motion respectively to a film and No. two glue on-chip testing balls, counted after obtaining image
Calculate, average speed v of the test ball on the film and No. two films in the 2t times of identical n-th is obtained respectively1、v2And
Acceleration a1、a2, and F is calculated by formula (4)Viscosity。
In order to inquire into the influence of the acceleration that indentation force is moved to test ball on film, by sizing material surface of the invention
Sticky measurement apparatus carry out tentative probing into.
In the specific implementation, multi-group data can be obtained in single test, and the treatment of data is carried out using computer, can
Multigroup measured value of sizing material is obtained, data is processed using statistical method, the F of the sizing material of acquisitionViscosity, and using most
Small square law or other method optimize the real-time viscous force F of analysisViscosityData, try to achieve real-time viscous force FViscosityRational number
Value.
Understand above-mentioned technical proposal of the invention for convenience, below by way of in specifically used mode to of the invention above-mentioned
Technical scheme is described in detail.
Same film sample is divided into 10 parts, one layer of glassine paper will be pasted in 5 parts therein of glue surface, respectively as No. two
Film, is left 5 parts respectively as a film, does not deal with.Film length is 250mm.Every film does five groups of experiments, often
The release altitude (in units of mm) of bead is different in group experiment.
| Group number | 1 | 2 | 3 | 4 | 5 |
| Highly | 12 | 17 | 22 | 27 | 32 |
When test ball 3 is moved in measurement apparatus, periodicity candid photograph is carried out by CCD industrial cameras 1；After image is obtained,
The photo in the test motion stabilization period of ball 3 is chosen, with consecutive image three for one group, is chosen in ten moving images respectively
1 group of image of identical period, carries out image procossing, and the acceleration of different motion is obtained by calculating.
A number film discharges in different height, and measured acceleration magnitude is as follows：
No. two films discharge in different height, and measured acceleration magnitude is as follows：
To the acceleration measured by No. 1 film and No. 2 films to carrying out differential analysis：
Graphic analyses is carried out by the experimental data of upper table, is obtained as shown in Figure 4, Figure 5.
As can be seen from the above table, contrasted in the case where glassine paper is whether there is, it can be seen that viscosity power is slowed down to bead and done
" contribution " for going out is very low.Acceleration magnitude caused by viscosity power, accounts for 15% or so of total reduction angle value.
Therefore, can be effectively improved to viscous force by overcoming the influence of indentation force by method of the present invention
Certainty of measurement.And in specific measurement, multi-group data can be obtained by multigroup experiment, and reprocessed by data, carry
Measuring accuracy high.
Embodiment one：Once test, obtain five groups of data
Measuring method is as follows：
Step 1：Same film sample is divided into 2 parts, one layer of glassine paper will be pasted in a glue surface therein, respectively will
Tested sizing material is fixedly mounted on sizing material surface viscosity measurement apparatus；
Step 2：Measurement apparatus are carried out into leveling, is tested twice all in identical height release test ball；
Step 3：When test ball is moved in measurement apparatus, periodicity candid photograph is carried out by CCD industrial cameras；
Step 4：After image is obtained, the photo in the test ball motion stabilization period is chosen, with consecutive image three for one group,
5 groups of images of identical period are chosen in moving image twice respectively, image procossing is carried out；
Step 5：Average speed and acceleration of the test ball on a film and No. two films are calculated respectively, and calculate viscous
The value of stagnant power；
Step 6：Calculated value to five groups of viscous forces is averaged as test result.
Embodiment two：Five experiments, obtain five groups of data
Measuring method is as follows：
Step 1：Same film sample is divided into 10 parts, one layer of glassine paper will be pasted in 5 parts therein of glue surface, respectively will
Tested sizing material is fixedly mounted on sizing material surface viscosity measurement apparatus；
Step 2：Measurement apparatus are carried out into leveling, all in identical height release test ball in test process；
Step 3：When test ball is moved in measurement apparatus, periodicity candid photograph is carried out by CCD industrial cameras 1；
Step 4：After image is obtained, the photo in the test ball motion stabilization period is chosen, with consecutive image three for one group,
1 group of image of identical period is chosen in ten moving images respectively, image procossing is carried out；
Step 5：Average speed and acceleration of the test ball on a film and No. two films are calculated respectively, by five group one
Average speed, acceleration value on number film are averaged respectively as average speed, acceleration test result, by five group two
Average speed, acceleration value on number film are averaged respectively as average speed, acceleration test result；
Step 6：Average speed on a number film, No. two films, acceleration test result are brought into formula and counted
Calculate viscous force.
Embodiment three：Five experiments, from different height release
Measuring method is as follows：
Step 1：Same film sample is divided into 10 parts, one layer of glassine paper will be pasted in 5 parts therein of glue surface, respectively will
Tested sizing material is fixedly mounted on sizing material surface viscosity measurement apparatus；
Step 2：Measurement apparatus are carried out into leveling, is surveyed from 5 different height releases respectively in a film test process
Try, ball is tested in 5 respective heights releases from a film test process respectively in No. two film test process；
Step 3：When test ball is moved in measurement apparatus, periodicity candid photograph is carried out by CCD industrial cameras；
Step 4：After image is obtained, the photo in the test ball motion stabilization period is chosen, with consecutive image three for one group,
1 group of image of identical period is chosen in ten moving images respectively, image procossing is carried out；
Step 5：Average speed and acceleration of the test ball on a film and No. two films are calculated respectively, by five group one
Average speed, acceleration value on number film are averaged respectively as average speed, acceleration test result, by five group two
Average speed, acceleration value on number film are averaged respectively as average speed, acceleration test result；
Step 6：Average speed on a number film, No. two films, acceleration test result are brought into formula and counted
Calculate viscous force.
Example IV：From the multiple test balls of sustained height release
Step 1：Same film sample is divided into 2 parts, one layer of glassine paper will be pasted in a glue surface therein, respectively will
Tested sizing material is fixedly mounted on sizing material surface viscosity measurement apparatus；
Step 2：Measurement apparatus are carried out into leveling, is tested all discharge three test balls respectively in identical height twice；
Step 3：When test ball is moved in measurement apparatus, periodicity candid photograph is carried out by CCD industrial cameras；
Step 4：After image is obtained, the photo in the test ball motion stabilization period is chosen, with consecutive image three for one group,
1 group of image of identical period is chosen in moving image twice respectively, image procossing is carried out；
Step 5：Average speed and acceleration of three test balls on a film and No. two films are calculated respectively, and are counted
Calculate the value of viscous force；
Step 6：Calculated value to three groups of viscous forces is averaged as test result.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of sizing material surface viscosity measuring method, it is characterised in that the method is comprised the following steps：
S1 prepares the two panels test film of same batch homogeneous viscous, a film and No. two films is respectively labeled as, by pre-
Treatment ensures No. two surfaces of film without viscous force；By quality for m test ball with identical initial velocity respectively in a film
It is for linear motion with No. two films；
S2 carries out mechanical analysis to motion process, and sizing material surface viscosity feature is characterized with the surface viscosity power of test film,
Testing kinematics formula of the ball on a film is：
FViscosity+FAir drag 1+FIndentation force=ma1 (1)
Testing kinematics formula of the ball on No. two films is：
FAir drag 2+FIndentation force=ma2 (2)
Air drag in formula (1) and formula (2) is determined by equation below：
FAir drag=(1/2) C ρ SV2 (3)
In formula (3), C is coefficient of air resistance, and ρ is atmospheric density, and S object front face areas, V is the relative fortune of object and air
Dynamic speed；
Formula (1) and formula (2) are made the difference and tried to achieve：
FViscosity=m (a1-a2)-(1/2)CρS(V1 2-V2 2) (4)；
S3 obtains speed, the acceleration of test ball in motion process, and the F in calculation procedure S2Viscosity。
2. sizing material surface viscosity measuring method according to claim 1, it is characterised in that to No. two glue in the step S1
Piece pretreatment mode is to paste one layer of glassine paper on test film surface.
3. sizing material surface viscosity measuring method according to claim 1, it is characterised in that ball is tested in the step S1 and is existed
The movement of falling object is done on inclined plane and obtains the initial velocity moved in the test film.
4. sizing material surface viscosity measuring method according to claim 1, it is characterised in that test is obtained in the step S3
Ball speed, the mode of acceleration are the motion states that ball is tested by image method Real-time Collection.
5. sizing material surface viscosity measuring method according to claim 4, it is characterised in that described image method is to be moved through
With T it is to capture some images in the cycle in journey, with consecutive image three for one group.
6. sizing material surface viscosity measuring method according to claim 5, it is characterised in that the method also includes by every group
The position that ball is tested in image calculates displacement S0, S1 of test ball in adjacent two images.
7. sizing material surface viscosity measuring method according to claim 6, it is characterised in that the method is also included by as follows
Formula (5) calculating speed v and acceleration a：
8. sizing material surface viscosity measuring method according to claim 7, it is characterised in that the method also includes calculating respectively
Average speed v of the test ball on a film and No. two films mutually in the same time1、v2And acceleration a1、a2, and by formula (4)
Calculate FViscosity。
9. a kind of sizing material surface viscosity measurement apparatus, including level meter, the level meter upper surface is provided with test film, and it is special
Levy and be, be installed with wedge in the test film, the upper surface of the wedge as test ball the first tracks,
The upper surface of the test film as sizing material the second tracks, the side of the level meter arranges wired along its length
Lasing light emitter transmitter, the opposite side of the level meter is disposed with the CCD industrial cameras towards the level meter.
10. sizing material surface viscosity measurement apparatus according to claim 9, it is characterised in that the level meter is being provided with
The side of CCD industrial cameras is disposed with transparent back panel along its length, and the transparent back panel be located at the level meter with it is described
Position between CCD industrial cameras.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018179A (en) * | 2016-03-17 | 2016-10-12 | 青岛科技大学 | Glue material surface viscosity measurement method and device based on image processing |
| CN113376058A (en) * | 2021-07-08 | 2021-09-10 | 靖江市金马胶粘制品制造有限公司 | Hot melt adhesive sample viscosity measurement device |
| CN114441382A (en) * | 2021-07-13 | 2022-05-06 | 台湾塑胶工业股份有限公司 | Viscosity measuring device and viscosity measuring method |
| CN116205914A (en) * | 2023-04-28 | 2023-06-02 | 山东中胜涂料有限公司 | Waterproof coating production intelligent monitoring system |
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