CN109342268A - A kind of quickly full-automatic kinematic viscosity measurement device - Google Patents
A kind of quickly full-automatic kinematic viscosity measurement device Download PDFInfo
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- CN109342268A CN109342268A CN201811410452.1A CN201811410452A CN109342268A CN 109342268 A CN109342268 A CN 109342268A CN 201811410452 A CN201811410452 A CN 201811410452A CN 109342268 A CN109342268 A CN 109342268A
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- capillary viscometer
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- capillary
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- 238000005259 measurement Methods 0.000 title claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000003860 storage Methods 0.000 claims abstract description 19
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 5
- 239000003599 detergent Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 239000011521 glass Substances 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
The present invention provides a kind of quickly full-automatic kinematic viscosity measurement device.The present invention includes: straight-through capillary viscometer, constant temperature bath, pneumatic control system, cleaning system and sample storage system.The straight-through capillary viscometer is responsible for, the upper end opening of branch pipe passes through main line and is connected to the pneumatic control system and cleaning system, and straight-through capillary viscometer is placed in constant temperature bath.The device of the invention not only realizes pressurization measurement by the way that air pump is arranged, and without replacing capillary glass tube according to fluid to be measured viscosity number, operating efficiency is high；And realize pressurization cleaning, cleaning is thorough, saves reagent.Fast automatic sample introduction is realized by straight-through capillary viscometer, and sample volume is accurately controlled by liquid level sensor.
Description
Technical field
The present invention relates to analysis of physical and chemical feature field more particularly to a kind of quickly full-automatic kinematic viscosity measurement devices.
Background technique
No matter important parameter of the kinematic viscosity as liquid is all not in production, transport, storage or use process
Insignificant index, especially fuel oil and lubricating oil, the size of kinematic viscosity directly influence whether equipment can normally transport
Row.
Notification number CN202092927U discloses a kind of automatic kinematic viscosity tester, with existing similar device or more
Or there is following problems less:
1) gravity that sample is relied in continuous mode, flows, naturally in order to meet the requirement of minute, it is necessary to according to liquid
The viscosity of body frequently replaces capillary viscometer, and especially for the biggish sample of viscosity, minute accordingly just be will increase；
2) hand sampling mode leads to not accurately control sampling volume, and brings measurement error；
3) procedural order of continuous mode and exclusion waste liquid carries out, and the time is longer；
4) cleaning process is takeed a long time and more cleaning due to the limitation of conventional capillary viscosimeter structure
Agent；
5) drying process generallys use the air completion for being blown into elevated pressures, it is suppressed that the evaporation rate of cleaning agent extends
Drying time.
In conclusion to solve the shortcoming of existing viscosimeter, it is necessary to develop a kind of quickly full-automatic fortune
Kinetic viscosity measurement device.
Summary of the invention
According to technical problem set forth above, and it is simple to provide a kind of structure, automatically, can fast quantification sample introduction, pressurization
Measurement accelerates flowing, and vacuum suction accelerates drying, and single capillary glass tube measurement viscosity number range is big, cleaning quickly, save at
This, and greatly reduce a kind of quickly full-automatic kinematic viscosity measurement device of minute.It is efficient to be particluarly suitable for kinematic viscosity
The application of measurement field.
It is as follows to invent the technological means used:
A kind of quickly full-automatic kinematic viscosity measurement device, comprising: straight-through capillary viscometer, constant temperature bath, pressure control
System, cleaning system and sample storage system；
The straight-through capillary viscometer includes the supervisor steeped equipped with upper ball bubble and lower ball and is connected with the lower ball bubble
Branch pipe, the upper and lower side of the upper ball bubble is respectively equipped with the first liquid level sensor and the second liquid level sensor, the straight-through capillary
Pipe viscosimeter is placed in the constant temperature bath, and the bottom of constant temperature bath is stretched out in the bottom of supervisor, for storing the storage of testing liquid
Sample system is placed in the lower section of supervisor bottom and sample storage system is not in contact with each other with the constant temperature bath, straight-through capillary viscometer；
The straight-through capillary viscometer is responsible for, the upper end opening of branch pipe passes through main line and is connected to the pressure control system
System and cleaning system, the pneumatic control system include air pump, vacuum pump and are arranged in outer for completely cutting off on main line
First solenoid valve of portion's air, be arranged in second solenoid valve that straight-through capillary viscometer supervisor is connected on main line with branch pipe,
The third solenoid valve and be arranged in straight-through capillary viscosity that straight-through capillary viscometer is connected on main line with vacuum pump are set
The pressure regulator valve being connected on main line with air pump is counted, the cleaning system for storing cleaning solution and detergent line is arranged in straight-through hair
Between capillary viscometer and air pump.
Further, the cleaning system includes the 4th solenoid valve being arranged on the main line, is respectively arranged on the 4th
The first cleaning pipe and the second cleaning pipe and reagent bottle of solenoid valve two sides, the reagent bottle be sealing state and wherein storage have
Cleaning solution, first cleaning pipe is different from the second cleaning length of tube, and long tube is inserted into liquid level hereinafter, short tube is on liquid level.
Further, the sample storage system is oil sample cup.
Further, when the quickly full-automatic kinematic viscosity measurement device starting, the constant temperature bath liquid level is more than first
Liquid level sensor.
Further, the supervisor of the straight-through capillary viscometer is concordant at the top of branch pipe and stretches out in the constant temperature
Bath.
Further, the straight-through capillary viscometer supervisor include stretch out in the upper end at the top of the constant temperature bath, on
Ball bubble, lower ball bubble, the interconnecting piece that upper ball steeps and lower ball bubble is intermediate and the suction line for stretching out in the constant temperature bath bottom are described straight
The upper end of logical capillary viscometer branch pipe and the upper end of the straight-through capillary viscometer supervisor are arranged in parallel, described straight-through
The lower end of capillary viscometer branch pipe is connect with the top half of the lower ball bubble, described straight-through capillary viscometer each section
For complete indivisible entirety, the connection between each section is non-dismountable, and in each junction interior smooth transition.
Further, first liquid level sensor and the signal of the second liquid level sensor detection are sent to programmable patrol
Controller is collected, the opening and closing of each valve, the start and stop of vacuum pump and air pump are automatically controlled by programmable logic controller (PLC).
Further, the programmable logic controller (PLC) is also used to control heating and the temperature control of constant temperature bath.
Further, the inside diameter ranges D of the straight-through capillary viscometer supervisor ball bubble interconnecting piece meets, and 0.5mm≤D≤
2mm。
The invention has the following advantages that
1, the present invention realizes fast automatic sample introduction, and sample volume is by liquid by the straight-through function of straight-through capillary viscometer
Face sensor accurately controls.
2, the device of the invention not only realizes pressurization measurement by the way that air pump is arranged, and is not necessarily to according to fluid to be measured viscosity number more
Capillary glass tube is changed, operating efficiency is high；And realize pressurization cleaning, cleaning is thorough, saves reagent.
3, the device of the invention is dried under reduced pressure capillary glass tube using vacuum pump realization, and greatly reduces minute.
4, the configuration of the present invention is simple, easily operated, measurement sample cycle is short.
The present invention can be widely popularized in analysis of physical and chemical feature field based on the above reasons.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the main view of the quick full-automatic kinematic viscosity measurement device of the present invention.
Wherein: 1, the first solenoid valve；2, second solenoid valve；3, pressure regulator valve；4, third solenoid valve；5, the 4th solenoid valve；6,
Vacuum pump；7, air pump；8, reagent bottle；9, constant temperature bath；10, the first liquid level sensor；11, the second liquid level sensor；12, it leads directly to
Capillary viscometer；13, sample storage system；A, capillary viscometer branch pipe is led directly to；B, it leads directly to capillary viscometer and is responsible for upper end；
C, ball bubble on capillary viscometer is led directly to；D, it leads directly to capillary viscometer supervisor's ball and steeps interconnecting piece；E, capillary viscometer is led directly to
Lower ball bubble；F, capillary viscometer suction line is led directly to.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of quickly full-automatic kinematic viscosity measurement device, comprising: straight-through capillary viscometer 12, constant temperature
Bath 9, pneumatic control system, cleaning system and sample storage system 13；
The straight-through capillary viscometer 12 includes steeping the supervisor of E equipped with upper ball bubble C and lower ball and steeping E with the lower ball
Connected branch pipe A, the upper and lower side of the upper ball bubble C is respectively equipped with the first liquid level sensor 10 and the second liquid level sensor 11, institute
Straight-through capillary viscometer 12 is stated to be placed in the constant temperature bath 9, the bottom of constant temperature bath 9 is stretched out in the bottom of supervisor, for store to
The sample storage system for surveying liquid is placed in lower section and sample storage system and the constant temperature bath 9, straight-through capillary viscosity of supervisor bottom
Meter 12 is not in contact with each other；
The straight-through capillary viscometer 12 is responsible for, the upper end opening of branch pipe passes through main line and is connected to the pressure control
System and cleaning system, the pneumatic control system include air pump 7, vacuum pump 6 and be arranged on main line for every
The second electricity that straight-through capillary viscometer supervisor is connected on main line with branch pipe A is arranged in first solenoid valve 1 of exhausted outside air
Third solenoid valve 4 and be arranged straight-through that straight-through capillary viscometer 12 is connected on main line with vacuum pump 6 is arranged in magnet valve 2
Capillary viscometer is connected to the cleaning system of the pressure regulator valve 3 on main line, storage cleaning solution and detergent line with air pump
It is arranged between straight-through capillary viscometer 12 and air pump 7.The prior art utilize the gravity of sample itself to flow down
It is dynamic to start to detect, for different viscosity samples, it is necessary to which the capillary viscometer for replacing different inner diameters is just able to satisfy viscosity measurements
Relevant criterion, equipment needs to frequently replace capillary viscometer using cumbersome, reconnects pipeline, and the application passes through
Straight-through capillary viscometer 12 needs a kind of capillary of internal diameter, so that it may which the detection for completing any viscosity samples does not need to change
Capillary, and meet relevant criterion requirement, especially for high viscosity samples, it is substantially shorter detection time.
The supervisor of the straight-through capillary viscometer 12 is concordant at the top of branch pipe and stretches out in the constant temperature bath.
The straight-through capillary viscometer 12 supervisor include stretch out in upper end B at the top of the constant temperature bath, upper ball bubble C,
Interconnecting piece D among lower ball bubble E, the upper ball bubble C and lower ball bubble E and suction line F for stretching out in the constant temperature bath bottom is described straight
The upper end of logical capillary viscometer branch pipe A and the upper end B of the straight-through capillary viscometer supervisor are arranged in parallel, described straight
The lower end of logical capillary viscometer branch pipe A is connect with the top half of the lower ball bubble E, the straight-through capillary viscometer 12
Each section is complete indivisible entirety, and the connection between each section is non-dismountable, and slips in each junction interior lights
It crosses.
Because interconnecting piece D is active section, therefore its pipe diameter size directly affects measurement result, the straight-through capillary viscometer
The inside diameter ranges D of 12 supervisor's ball bubble interconnecting piece D meets, 0.5mm≤D≤2mm.It is common that straight-through capillary viscosity is calculated as capillary
Quartz glass class material is made.
The sample storage system 13 is oil sample cup, and oil sample cup does not connect mutually with the constant temperature bath 9, straight-through capillary viscometer 12
Touching, is separately provided, oil sample can be poured into sample introduction cup in advance, and is not take up the operating time of machine, effectively promotes sample introduction speed.
When the quickly full-automatic kinematic viscosity measurement device starting, 9 liquid level of constant temperature bath is more than the first liquid level sensing
Device 10.
First liquid level sensor 10 and the signal of the second liquid level sensor 11 detection are sent to programmable logic control
Device processed, the opening and closing of each valve, the start and stop of vacuum pump 6 and air pump 7 are automatically controlled by programmable logic controller (PLC).
The cleaning system includes the 4th solenoid valve 5 being arranged on the main line, is respectively arranged on 5 liang of the 4th solenoid valve
The first cleaning pipe and the second cleaning pipe and reagent bottle 8 of side, the reagent bottle 8 be sealing state and wherein storage have cleaning
Liquid, first cleaning pipe is different from the second cleaning length of tube, and long tube is inserted into liquid level hereinafter, short tube is on liquid level.
Working condition of the present invention is as follows:
S1, operation programmable logic controller (PLC), are arranged temperature, constant temperature bath 9 are heated to measuring temperature；
S2, sample to be tested is poured into oil sample cup 13, and oil sample cup 13 is placed in straight-through 12 lower section suction inlet of capillary viscometer.
S3, the START button pressed on programmable logic controller (PLC) are automatically performed following operation under program:
1) sample introduction process: the first solenoid valve 1 of control, second solenoid valve 2, the 4th solenoid valve 5, pressure regulator valve 3 are closed, and open the
Three solenoid valves 4 open vacuum pump 6 and start automatic oil suction, when the first liquid level sensor 10 detects sample introduction liquid level, control vacuum
Pump 6 stops opportunity, realizes quantitative sample injection；
2) pressure regulation process: sample in straight-through capillary viscometer 12 after constant temperature specified time, control second solenoid valve 2,
Third solenoid valve 4 is closed, and the first solenoid valve 1, the 4th solenoid valve 5, pressure regulator valve 3 are opened, and the automatic air pump 7 that starts carries out pressure regulation,
Admission pressure is adjusted to specified pressure, sample quick flow down under pressure-air effect is sensed when flowing through the first liquid level
After device 10 and the second liquid level sensor 11, flowing time is automatically recorded and calculates viscosity number；
Meanwhile 3) cleaning process: the first solenoid valve 1 of control, third solenoid valve 4, the 4th solenoid valve 5 are closed, and open second
Solenoid valve 2, pressure regulator valve 3 are opened air pump 7 and are cleaned, under the pressure-air effect that air pump 7 is discharged, in reagent bottle 8
Reagent is discharged into straight-through capillary viscometer 12, realizes cleaning operation；
After the completion of cleaning, air pump 7 stops, and 4) drying process: control second solenoid valve 2, the 4th solenoid valve 5, pressure regulator valve 3
It closes, opens the first solenoid valve 1, third solenoid valve 4, open vacuum pump 6 and be dried.Complete capillary glass tube drying process
Afterwards, vacuum pump 6 is out of service, and system enters standby mode.
S4, shutdown.
S5, oil sample cup is removed.
S6, power cut-off.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (8)
1. a kind of quickly full-automatic kinematic viscosity measurement device characterized by comprising straight-through capillary viscometer, constant temperature bath,
Pneumatic control system, cleaning system and sample storage system；
The straight-through capillary viscometer includes the supervisor steeped equipped with upper ball bubble and lower ball and steeps the branch being connected with the lower ball
The upper and lower side of pipe, the upper ball bubble is respectively equipped with the first liquid level sensor and the second liquid level sensor, and the straight-through capillary is viscous
Degree meter is placed in the constant temperature bath, and the bottom of constant temperature bath is stretched out in the bottom of supervisor, for storing the sample storage system of testing liquid
System is placed in the lower section of supervisor bottom and sample storage system is not in contact with each other with the constant temperature bath, straight-through capillary viscometer；
The straight-through capillary viscometer supervisor, branch pipe upper end opening pass through main line be connected to the pneumatic control system and
Cleaning system, the pneumatic control system include air pump, vacuum pump and are arranged in external empty for completely cutting off on main line
Second solenoid valve, setting that straight-through capillary viscometer supervisor is connected on main line with branch pipe is arranged in first solenoid valve of gas
The third solenoid valve that be connected on main line with vacuum pump in straight-through capillary viscometer and be arranged in straight-through capillary viscometer and
Air pump is connected to the pressure regulator valve on main line, and the cleaning system for storing cleaning solution and detergent line is arranged in straight-through capillary
Between viscosimeter and air pump.
2. quickly full-automatic kinematic viscosity measurement device according to claim 1, which is characterized in that the straight-through capillary
The supervisor of viscosimeter is concordant at the top of branch pipe and stretches out in the constant temperature bath.
3. quickly full-automatic kinematic viscosity measurement device according to claim 2, which is characterized in that the straight-through capillary
Viscosimeter supervisor is including stretching out among the upper end at the top of the constant temperature bath, upper ball bubble, lower ball bubble, upper ball bubble and lower ball bubble
Interconnecting piece and the suction line for stretching out in the constant temperature bath bottom, the upper end of the straight-through capillary viscometer branch pipe with it is described
The upper end of straight-through capillary viscometer supervisor is arranged in parallel, the lower end of the straight-through capillary viscometer branch pipe and it is described under
The top half connection of ball bubble, described straight-through capillary viscometer each section are complete indivisible entirety, between each section
Connection it is non-dismountable, and in each junction interior smooth transition.
4. described in any item quickly full-automatic kinematic viscosity measurement devices according to claim 1~3, which is characterized in that described
The inside diameter ranges D of straight-through capillary viscometer supervisor ball bubble interconnecting piece meets, 0.5mm≤D≤2mm.
5. quickly full-automatic kinematic viscosity measurement device according to claim 1, which is characterized in that the sample storage system is
Oil sample cup.
6. quickly full-automatic kinematic viscosity measurement device according to claim 1, which is characterized in that described quickly full-automatic
When kinematic viscosity measurement device starts, the constant temperature bath liquid level is more than the first liquid level sensor.
7. quick full-automatic kinematic viscosity measurement device according to claim 1 or 6, which is characterized in that first liquid
Face sensor and the signal of the second liquid level sensor detection are sent to programmable logic controller (PLC), the opening and closing of each valve, vacuum
The start and stop of pump and air pump are automatically controlled by programmable logic controller (PLC).
8. quickly full-automatic kinematic viscosity measurement device according to claim 1, which is characterized in that the cleaning system packet
The first cleaning pipe and the second cleaning for including the 4th solenoid valve being arranged on the main line, being respectively arranged on the 4th solenoid valve two sides
Pipe and reagent bottle, the reagent bottle be sealing state and wherein storage have a cleaning solution, first cleaning pipe and the second cleaning
Length of tube is different, and long tube is inserted into liquid level hereinafter, short tube is on liquid level.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811410452.1A CN109342268B (en) | 2018-11-23 | 2018-11-23 | Quick full-automatic kinematic viscosity measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811410452.1A CN109342268B (en) | 2018-11-23 | 2018-11-23 | Quick full-automatic kinematic viscosity measuring device |
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| CN109342268A true CN109342268A (en) | 2019-02-15 |
| CN109342268B CN109342268B (en) | 2024-02-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109916773A (en) * | 2019-04-10 | 2019-06-21 | 李尚松 | A kind of high polymer viscosity average molecular weight determination instrument and its application method |
| CN113188954A (en) * | 2021-04-28 | 2021-07-30 | 北京理工大学 | Automatic device for measuring viscosity of nitrocotton |
| CN113418827A (en) * | 2021-07-22 | 2021-09-21 | 山东东珩胶体材料有限公司 | Aluminum sol-gel viscosity detection device and detection method |
| CN113953282A (en) * | 2021-11-04 | 2022-01-21 | 西安热工研究院有限公司 | Capillary tube cleaning device and method for kinematic viscosity measurement |
| CN114428038A (en) * | 2021-12-31 | 2022-05-03 | 陕西科技大学 | Experimental device for measuring liquid viscosity coefficient by falling ball method |
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| CN109916773A (en) * | 2019-04-10 | 2019-06-21 | 李尚松 | A kind of high polymer viscosity average molecular weight determination instrument and its application method |
| CN113188954A (en) * | 2021-04-28 | 2021-07-30 | 北京理工大学 | Automatic device for measuring viscosity of nitrocotton |
| CN113418827A (en) * | 2021-07-22 | 2021-09-21 | 山东东珩胶体材料有限公司 | Aluminum sol-gel viscosity detection device and detection method |
| CN113953282A (en) * | 2021-11-04 | 2022-01-21 | 西安热工研究院有限公司 | Capillary tube cleaning device and method for kinematic viscosity measurement |
| CN114428038A (en) * | 2021-12-31 | 2022-05-03 | 陕西科技大学 | Experimental device for measuring liquid viscosity coefficient by falling ball method |
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