CN109001159A - The device and method of rapid survey liquid water-reducing agent solid content - Google Patents
The device and method of rapid survey liquid water-reducing agent solid content Download PDFInfo
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- CN109001159A CN109001159A CN201810765005.1A CN201810765005A CN109001159A CN 109001159 A CN109001159 A CN 109001159A CN 201810765005 A CN201810765005 A CN 201810765005A CN 109001159 A CN109001159 A CN 109001159A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
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Abstract
The invention discloses a kind of device and methods of rapid survey liquid water-reducing agent solid content, including shading box body, pedestal, container, laser light source, incidence angle detection unit, outgoing optical detecting unit, single-chip microcontroller and display unit；Pedestal is placed in shading box body, and pedestal is equipped with the matched limiting slot of container and around the sliding slot of limiting slot；Container is set in limiting slot；The light source base that can be slided along the chute is set in sliding slot；Laser light source is fixed on light source base；Incidence angle detection unit mainly includes angular transducer and knob, is mainly used to obtain the incidence angle of laser；Being emitted optical detecting unit mainly includes photodiode, for detecting outgoing light direction.Apparatus of the present invention theory structure can quickly detect the relative index of refraction of liquid water-reducing agent；The method of the present invention can also be quickly obtained the solid content of liquid water-reducing agent, and error rate is not higher than 1.5%, and the real-time production control that can meet liquid water-reducing agent requires.
Description
Technical field
The invention belongs to water-reducing agent detection technique fields, and in particular to a kind of dress of rapid survey liquid water-reducing agent solid content
It sets and method.
Background technique
Solid content is the important indicator of liquid water-reducing agent, has great influence to the stability of liquid water-reducing agent.Accurately
Quickly measurement solid content is conducive to the production control of liquid water-reducing agent.Subtract currently, relatively generalling use gravimetric method to detect liquid
The solid content of aqua.Gravimetric method specifically: at a temperature of 100 degree~105 degree, liquid water-reducing agent is dried to constant weight, and weighs, it should
Constant weight weight, that is, solid amount calculates solid content according to solid amount.But that there are detection cycles is long for gravimetric method, cumbersome, fits
It is few together in product batches, the product for having arbitration request is detected；But it is poorly suitable for that production scale is big, sample batch is more
Producer carry out in real time production control.
Summary of the invention
It is especially suitable the purpose of the present invention is to provide a kind of device and method of rapid survey liquid water-reducing agent solid content
It is controlled in the real-time production of polycarboxylic acids liquid water-reducing agent.
The device of rapid survey liquid water-reducing agent solid content provided by the invention, including shading box body, circular pedestal, half
Circular container, laser light source, incidence angle detection unit, outgoing optical detecting unit, single-chip microcontroller and display unit；
The pedestal is placed in the shading box body and is set to shading box body bottom, and pedestal is equipped with and the matched limit of container
Position slot and the semicircular sliding slot for surrounding limiting slot, the concyclic heart of pedestal, limiting slot, sliding slot；The container is set to the limit
In slot, the flat sidewall and curved surface sidewall of container are transparent glass；The light source base that can be slided along the chute is set in the sliding slot；
The laser light source is used to emit single beam laser line, and laser light source is fixed on light source base, and is emitted the optical registration pedestal center of circle；
The incidence angle detection unit includes angular transducer, knob, horizontal axis and vertical pivot, and knob is set to shading box and pushes up in vitro
End, and center is sitting above the pedestal center of circle；Angular transducer is fixed on top in shading box body and center is sitting in knob
Below the heart；One end of angular transducer, knob and horizontal axis connects, and the other end of horizontal axis connects vertical pivot, the bottom end connection of vertical pivot
Light source base；
The outgoing optical detecting unit includes photodiode, LED light and power supply；Emergent light outgoing range is corresponded on pedestal
Edge arrange even number photodiode, several photodiodes are distributed in the two sides of container plan view side wall normal；Each light
Quick diode concatenates a LED light respectively, and power supply is used to power to the series loop of each photodiode；
The output end of the angular transducer connects the single-chip microcontroller, and it is single that the output of the single-chip microcontroller connects the display
Member.
Preferably, setting at least two positioning protrusion in the limiting slot, the container bottom sets corresponding with positioning protrusion
Location hole, when container is set in limiting slot, positioning protrusion correspondence heads into positioning hole.
Preferably, setting a semicircular location fin in the limiting slot, the container bottom is set and location fin phase
The semicircular locating slot answered, when container is set in limiting slot, location fin correspondence is headed into locating slot.
Preferably, one end that the horizontal axis is connect with angular transducer, knob is equipped with T font end, the T font end
One end and the rotation axis of angular transducer connected by shaft coupling, the other end of the T font end is directly connected to knob.
Preferably, the horizontal axis is set in shading box body, and top is arranged along shading box body；Vertical pivot is equally set to screening
In light box body, and side wall is arranged along shading box body.
Go out to arrange a fixing piece preferably, corresponding to emergent light outgoing range on the pedestal, each photodiode placement
In on fixing piece.
Preferably, each LED light and the display unit are set to the shading cartridge upper surface.
The application method of the device of rapid survey liquid water-reducing agent solid content provided by the invention, comprising:
The status indication of angular transducer is zero-bit when laser light source is located on container plan view side wall normal；
Since zero-bit, knob records display unit at this time and exports when there is LED light bright clockwise or counterclockwise
Angle value, i.e., current incidence angle, photosensitive two pole that the corresponding angle of emergence of the incidence angle is concatenated according to the LED light of the light yellow
The position of pipe obtains；
Zero-bit is returned to, since zero-bit, counterclockwise or rotates clockwise knob, when there is LED light bright, record is shown at this time
The angle value of unit output, i.e., current incidence angle, the corresponding angle of emergence of the incidence angle are concatenated according to the LED light of the light yellow
The position of photodiode obtains；
Based on refraction principle, relative index of refraction is calculated separately according to the incidence angle recorded angle of emergence corresponding with itsEach relative index of refraction is averaged；Wherein, a is incidence angle, and b is the corresponding angle of emergence of incidence angle a.
The method of rapid survey liquid water-reducing agent solid content provided by the invention, using above-mentioned rapid survey liquid water-reducing agent
The device of solid content carries out, and steps are as follows:
The first step, a series of sample for the liquid water-reducing agent for taking solid contents different are used using gravimetric detemination solid content
The device of above-mentioned rapid survey liquid water-reducing agent solid content and above-mentioned application method measure relative index of refraction；
Second step, the data of the solid content and relative index of refraction that are obtained according to the first step are fitted solid content-relative
The numerical relation curve of rate；
Third step, to liquid water-reducing agent sample to be measured, using above-mentioned rapid survey liquid water-reducing agent solid content device and
Above-mentioned application method measures the relative index of refraction of liquid water-reducing agent sample to be measured, is closed according to solid content-relative index of refraction numerical value
It is curve, obtains the solid content of liquid water-reducing agent sample to be measured.
Before the present invention, applicant passes through a large number of experiments, and there are numerical value for the solid content and refractive index for finding liquid water-reducing agent
Corresponding relationship, and the error rate using detecting refractive index solid content is demonstrated not higher than 1%.
Test process is as follows:
Firstly, taking a series of polycarboxylic acids liquid water-reducing agent samples of known solid content, liquid refractivity instrument is respectively adopted
Measure solid content and refractive index.
Then, according to the solid content of acquisition and refractive index data, it is fitted solid content-refractive index numerical relation curve.
Finally, taking a series of polycarboxylic acids liquid water-reducing agent test specimen known to solid contents, refractive index is measured, then is based on containing
Gu amount-refractive index numerical relation curve, obtains the solid content of each test specimen.
Solid content known to test specimen and it is shown in Table 1 based on index method solid content obtained, as it can be seen from table 1
The accurate solid content of polycarboxylic acids liquid water-reducing agent can be obtained using index method.Wherein, error rate be known solid content and
The percentage of difference and known solid content based on index method solid content obtained.
1 solid content contrast table of table
| Test specimen number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Known solid content (%) | 18.5 | 18.69 | 18.68 | 18.44 | 18.56 | 18.49 | 18.62 | 17.98 |
| The solid content (%) that index method obtains | 18.52 | 18.87 | 18.71 | 18.62 | 18.70 | 18.59 | 18.55 | 17.88 |
| Error rate (%) | 0.11 | 0.96 | 0.16 | 0.98 | 0.75 | 0.54 | 0.38 | 0.56 |
Based on above-mentioned test result, it is known that feasible using detecting refractive index liquid water-reducing agent solid content.
But liquid refractivity instrument on the market uses cumbersome and at high price mostly at present, it is difficult to contain to liquid water-reducing agent
Gu amount carries out rapid survey, the real-time production that can not be suitable for liquid water-reducing agent is controlled.
Compared to the prior art, the invention has the advantages that and the utility model has the advantages that
(1) apparatus of the present invention theory structure, it is simple for structure, it can quickly detect the relative index of refraction of liquid water-reducing agent.
(2) numerical value corresponding relationship existing for solid content and relative index of refraction of the method for the present invention using liquid water-reducing agent, benefit
The solid content of liquid water-reducing agent can be quickly obtained with the relative index of refraction of liquid water-reducing agent.
(3) experiment proves that, the present invention can Accurate Determining solid content, error rate be not higher than 1.5%.
Detailed description of the invention
Fig. 1 is the outside drawing schematic diagram of apparatus of the present invention；
Fig. 2 is base vertical view in embodiment 1, wherein figure (a) is the base vertical view for not placing container, and figure (b) is to put
The base vertical view of container is set；
Fig. 3 is the explosion simplified schematic diagram of incidence angle detection unit in embodiment 1；
Fig. 4 is the schematic block circuit diagram that optical detecting unit is emitted in embodiment 1；
Fig. 5 is principle schematic diagram of the present invention.
In figure:
100- shading box body；
200- pedestal, 210- limiting slot, 220- sliding slot, 230- light source base；
300- container；
400- laser light source；
510- angular transducer, 511- rotation axis, 520- knob, 530- horizontal axis, 531-T font end, 540- vertical pivot,
550- shaft coupling；
The first photodiode of 610a-, the second photodiode of 610b-, the first LED light of 620a-, the 2nd LED of 620b-
Lamp, 630- fixing piece；
700- display unit.
Specific embodiment
Further detailed description is done to the present invention below in conjunction with examples and drawings, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
It should be noted that provided attached drawing only plays signal, dimension scale as shown in the figure is not actual ratio.
Embodiment 1
Referring to Fig. 1~4, the present embodiment device mainly include a cylindrical shading box body 100, a circular pedestal 200,
One semicircular container 300, laser light source 400, incidence angle detection unit, outgoing optical detecting unit, single-chip microcontroller and display unit
700.100 side of shading box body is equipped with convenient for picking and placing the side door (not drawn in the figure) of container 300, and pedestal 200 is fixed on shading
100 bottom of box body, container 300 are set on pedestal 200, and the flat sidewall and curved surface sidewall of container 300 are transparent glass.Laser
Light source 400 is used to emit single beam laser line, and incidence angle detection unit is used to obtain the incident angle of laser, is emitted optical detecting unit
For using photodiode detection outgoing light direction.
Referring to fig. 2, pedestal 200 is equipped with the matched limiting slot 210 of container 300 and around the semicircle of limiting slot 210
The sliding slot 220 of shape, pedestal 200, limiting slot 210, the concyclic heart of sliding slot 220.Limiting slot 210 is used to place container 300, and to container
300 are limited.Setting in sliding slot 220 220 light source base 230 slided, laser light source 400 to be fixed on light source base along the chute
On 230, and it is emitted 200 center of circle of optical registration pedestal.At least two convexes to be set in limiting slot 210 convenient for positioning to container 300
It rises, sets location hole corresponding with positioning protrusion in 300 bottom of container.When placing container 300, positioning protrusion correspondence is made to head into positioning
The positioning of container 300 can be realized in hole.
Referring to Fig. 3, incidence angle detection unit mainly includes an angular transducer 510 and connect with angular transducer 510
Knob 520.Knob 520 is set to 100 outer top of shading box body, and center is sitting above 300 center of circle of container, i.e. knob 520
Center and 300 center of circle of container are coaxial.Angular transducer 510 is fixed on top in shading box body 100, for detecting knob 520
Rotate angle.Angular transducer 510 and knob 520 are all connected with a horizontal axis 530, and 530 end of horizontal axis connects a vertical pivot 540, vertical pivot
540 bottom ends connect light source base 230.More specifically, one end that horizontal axis 530 is connect with angular transducer 510, knob 520 is equipped with T
Font end 531.One end a of the T font end 531 is connect with the rotation axis 511 of angular transducer 510 by shaft coupling 550,
The other end b of the T font end 531 is directly connected to knob 520.Horizontal axis 530 is set in shading box body 100, and along shading box body
Top is arranged in 100；Vertical pivot 540 is equally set in shading box body 100, and is arranged along 100 inner sidewall of shading box body.The present embodiment
In, knob 520 uses the knob with limit function, can be rotated both clockwise and counterclockwise, and rotating range is 0~90 degree.Angle passes
The output end of sensor 510 connects single-chip microcontroller, and the output of single-chip microcontroller connects display unit 700, and in the present embodiment, single-chip microcontroller, which is set to, to be hidden
In light box body 100, display unit 700 is the display screen set on 100 upper surface of shading box body, is used to angles of display sensor 510
The angle value of output, the i.e. incidence angle of laser.When rotation knob 520, horizontal axis 530 can be driven and vertical pivot 540 rotates, thus band
Dynamic 220 sliding, while the exportable rotation angle of angular transducer 510 along the chute of light source base 230, can obtain according to rotation angle
Obtain laser light incident angle.
Referring to fig. 4, outgoing optical detecting unit includes photodiode, LED light and power supply.Emergent light is corresponded on pedestal 200
Several photodiodes are arranged in the edge for being emitted range, and photodiode quantity is preferably 2~4, and photodiode is used to
Detection outgoing light direction.The present embodiment has laid 2 photodiodes, is denoted as the first photodiode 610a and the second light respectively
Quick diode 610b, each photodiode concatenate a LED light respectively, are denoted as the first LED light 620a and the second LED light respectively
620b, power supply are used to power to the series loop of each photodiode.When there is illumination to be mapped to photodiode, then institute is concatenated
LED light is bright.Since the position of photodiode is it is known that it is known that the angle of emergence of the emergent light detected by it.The present embodiment
In, as shown in Figure 2, is corresponded on pedestal 200 and arrange a fixing piece 630, the first photodiode at emergent light outgoing range
610a and the second photodiode 610b are placed on fixing piece 630, with photosensitive two pole the first photodiode 610a and second
The the first LED light 620a and the second LED light 620b that pipe 610b is separately connected are set to the upper surface of shading box body 100.
In the present embodiment, laser light source 400 is using the LD laser light source that can emit single beam laser, such as HA3405150D-
The laser light source of AL model.Angular transducer 510 be LW126C model, can directly output digit signals angle value.
Below in conjunction with the present embodiment, the principle of the invention is illustrated.
Referring to Fig. 5, before use, adjusting laser light source 400 is emitted light direction, make to be emitted 300 center of circle O of optical registration container, this
Sample, when driving laser light source 400 to do around the circular motion of center of circle O by knob 520, emergent light remains alignment center of circle O,
I.e. emergent light is remained from cambered surface ACB vertical incidence to center of circle O.Laser light source 400 is located at the mark of the position on OC extended line
It is denoted as the zero-bit of angular transducer 510.Since zero-bit, angle that laser light source 400 rotates clockwise or counterclockwise
That is the incidence angle of laser.The the first photodiode 610a and the second photodiode 610b that the present embodiment is laid are distributed in AB
The two sides of face normal；By the first photodiode 610a and the corresponding angle of emergence of the second photodiode 610b be denoted as respectively b1 and
b2。
Sample to be tested is placed in container 300, container 300 is placed in limiting slot 210.Since zero-bit, rotate clockwise
Knob 520, when the first LED light 620a is bright, the angle value that recording and displaying unit 700 exports, i.e. incidence angle a1；It is then return to zero
Position rotates knob 520 counterclockwise, when the second LED light 620b is bright, the angle value that recording and displaying unit 700 exports, and, i.e., incident
Angle a2.Based on refraction principle, relative index of refraction is calculatedWithBy n01And n02It is averaged.
Embodiment 2
The present embodiment is a kind of preferred embodiment of embodiment 1.Its technical solution is basic and embodiment 1 is identical, but based on real
It applies example 1 and has done following improvement:
For the locating effect for further increasing container 300, a semicircular location fin is set in limiting slot 210, meanwhile,
Semicircular locating slot corresponding with location fin is set in 300 bottom of container.When container 300 is set in limiting slot 210, convex
Rib correspondence heads into locating slot.
Embodiment 3
The present embodiment measures a kind of detailed process of polycarboxylic acids liquid water-reducing agent solid content by providing using the present apparatus.
The first step takes a series of polycarboxylic acids liquid water-reducing agent sample that solid contents are different, gravimetric method and Ben Fa is respectively adopted
Bright device measurement solid content and relative index of refraction, the measuring method of relative index of refraction is referring to embodiment 1.
Second step is fitted solid content-relative index of refraction according to the relative index of refraction data of the solid content of sample and measurement
Numerical relation curve.
Third step, using the relative index of refraction of apparatus of the present invention measurement sample to be tested according to solid content-relative index of refraction
Numerical relation curve obtains the solid content of sample to be tested.
2 solid content contrast table of table
| Test specimen number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Known solid content (%) | 29.07 | 29.09 | 28.68 | 28.44 | 28.56 | 28.49 | 28.62 | 27.98 |
| The solid content (%) that index method obtains | 28.81 | 28.83 | 28.39 | 28.74 | 28.28 | 28.19 | 28.90 | 27.65 |
| Error rate (%) | 0.88 | 0.90 | 0.99 | 1.06 | 0.95 | 1.04 | 0.98 | 1.16 |
For the accuracy for verifying the method for the present invention, the test specimen of polycarboxylic acids liquid water-reducing agent known to 8 solid contents is taken,
Its solid content is shown in Table 2 second rows.Solid content, solid content measurement knot are measured to 8 test specimens using the method for the present invention respectively
Fruit is shown in Table 2 the third lines.Through comparing, the error rate of the method for the present invention is not higher than 1.5%, about 1%, and accuracy rate can meet polycarboxylic acids liquid
The real-time production of state water-reducing agent, which controls, to be required.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (9)
1. the device of rapid survey liquid water-reducing agent solid content, it is characterized in that:
Including shading box body, circular pedestal, semicircular container, laser light source, incidence angle detection unit, outgoing light detection list
Member, single-chip microcontroller and display unit；
The pedestal is placed in the shading box body and is set to shading box body bottom, and pedestal is equipped with and the matched limiting slot of container
And the semicircular sliding slot around limiting slot, the concyclic heart of pedestal, limiting slot, sliding slot；The container is set in the limiting slot,
The flat sidewall and curved surface sidewall of container are transparent glass；The light source base that can be slided along the chute is set in the sliding slot；It is described
Laser light source is used to emit single beam laser line, and laser light source is fixed on light source base, and is emitted the optical registration pedestal center of circle；
The incidence angle detection unit includes angular transducer, knob, horizontal axis and vertical pivot, and knob is set to the external top of shading box,
And center is sitting above the pedestal center of circle；Angular transducer is fixed on top and center in shading box body and is sitting under knob center
Side；One end of angular transducer, knob and horizontal axis connects, and the other end of horizontal axis connects vertical pivot, and the bottom end of vertical pivot connects light source
Pedestal；
The outgoing optical detecting unit includes photodiode, LED light and power supply；The side of emergent light outgoing range is corresponded on pedestal
Arrange that even number photodiode, several photodiodes are distributed in the two sides of container plan view side wall normal at edge；Each photosensitive two
Pole pipe concatenates a LED light respectively, and power supply is used to power to the series loop of each photodiode；
The output end of the angular transducer connects the single-chip microcontroller, and the output of the single-chip microcontroller connects the display unit.
2. the device of rapid survey liquid water-reducing agent solid content as described in claim 1, it is characterized in that:
At least two positioning protrusion are set in the limiting slot, the container bottom sets location hole corresponding with positioning protrusion, and container is set
When in limiting slot, positioning protrusion correspondence heads into positioning hole.
3. the device of rapid survey liquid water-reducing agent solid content as described in claim 1, it is characterized in that:
A semicircular location fin is set in the limiting slot, the container bottom sets corresponding with location fin semicircular fixed
Position slot, when container is set in limiting slot, location fin correspondence is headed into locating slot.
4. the device of rapid survey liquid water-reducing agent solid content as described in claim 1, it is characterized in that:
One end that the horizontal axis is connect with angular transducer, knob is equipped with T font end, one end of the T font end and angle
The rotation axis of sensor is connected by shaft coupling, and the other end of the T font end is directly connected to knob.
5. the device of rapid survey liquid water-reducing agent solid content as described in claim 1, it is characterized in that:
The horizontal axis is set in shading box body, and top is arranged along shading box body；Vertical pivot is equally set in shading box body, and edge
Side wall is arranged in shading box body.
6. the device of rapid survey liquid water-reducing agent solid content as described in claim 1, it is characterized in that:
Emergent light outgoing range is corresponded on the pedestal to go out to arrange that a fixing piece, each photodiode are placed on fixing piece.
7. the device of rapid survey liquid water-reducing agent solid content as described in claim 1, it is characterized in that:
Each LED light and the display unit are set to the shading cartridge upper surface.
8. the application method of device as described in claim 1, characterized in that include:
The status indication of angular transducer is zero-bit when laser light source is located on container plan view side wall normal；
Since zero-bit, knob records the angle of display unit output at this time when there is LED light bright clockwise or counterclockwise
Angle value, i.e., current incidence angle, the photodiode that the corresponding angle of emergence of the incidence angle is concatenated according to the LED light of the light yellow
Position obtains；
Zero-bit is returned to, since zero-bit, counterclockwise or rotates clockwise knob, when there is LED light bright, records display unit at this time
The angle value of output, i.e., current incidence angle, the corresponding angle of emergence of the incidence angle are concatenated photosensitive according to the LED light of the light yellow
The position of diode obtains；
Based on refraction principle, relative index of refraction is calculated separately according to the incidence angle recorded angle of emergence corresponding with itsEach relative index of refraction is averaged；Wherein, a is incidence angle, and b is the corresponding angle of emergence of incidence angle a.
9. a kind of method of rapid survey liquid water-reducing agent solid content, it is characterized in that:
This method is carried out using claim 1 described device, and steps are as follows:
The first step, a series of sample for the liquid water-reducing agent for taking solid contents different, using gravimetric detemination solid content, using right
It is required that 1 described device and claim 8 the method measure relative index of refraction；
Second step, the data of the solid content and relative index of refraction that are obtained according to the first step are fitted solid content-relative index of refraction
Numerical relation curve；
Third step measures liquid water-reducing agent sample to be measured using claim 1 described device and claim 8 the method
Its relative index of refraction obtains containing for liquid water-reducing agent sample to be measured according to solid content-relative index of refraction numerical relation curve
Gu amount.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109975243A (en) * | 2019-04-04 | 2019-07-05 | 山西钢科碳材料有限公司 | The quickly method of measurement polyacrylonitrile solid content |
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