CN1737531A - Magnetic liquid apparent viscosity tester and method of testing thereof - Google Patents
Magnetic liquid apparent viscosity tester and method of testing thereof Download PDFInfo
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- CN1737531A CN1737531A CN 200510041000 CN200510041000A CN1737531A CN 1737531 A CN1737531 A CN 1737531A CN 200510041000 CN200510041000 CN 200510041000 CN 200510041000 A CN200510041000 A CN 200510041000A CN 1737531 A CN1737531 A CN 1737531A
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- 239000007788 liquid Substances 0.000 title claims abstract description 50
- 238000010998 test method Methods 0.000 title abstract description 7
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 230000004907 flux Effects 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000011088 calibration curve Methods 0.000 claims description 6
- 239000002480 mineral oil Substances 0.000 claims description 6
- 235000010446 mineral oil Nutrition 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000011553 magnetic fluid Substances 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 3
- 238000011160 research Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013213 extrapolation Methods 0.000 description 2
- 235000014653 Carica parviflora Nutrition 0.000 description 1
- 241000243321 Cnidaria Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- -1 tolyl cobalt Chemical compound 0.000 description 1
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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
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/14—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
- G01N11/142—Sample held between two members substantially perpendicular to axis of rotation, e.g. parallel plate viscometer
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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)
- Lubricants (AREA)
Abstract
Magnetic liquid apparent viscosity tester of the present invention and method of testing thereof, adopt adjustable permanent magnet stator and the turning axle that has high flux sleeve, join and temperature measuring equipment and contactless knotmeter, be provided with and leave the gap of placing testing liquid between high flux sleeve and the adjustable permanent magnet stator, temperature measuring equipment is provided with a plurality of thermopairs with adjustable permanent magnet stator and links to each other, by the rotation of turning axle in adjustable permanent magnet stator, adopt direct current constant force torque motor change in rotational speed to measure the test moment of torsion; Externally-applied magnetic field when testing with inserted permanent magnet control, the magnetic direction of magnetic liquid motive position to be measured is perpendicular to mobile shear surface, can realize the test of magnetic fluid apparent viscosity under different magnetic field, it is simple in structure, is easy to carry, and is easy to operate, test accurately, relative error can be controlled in 1%, and is cheap, has practicality widely in this technical field.
Description
Technical field
The present invention relates to magnetic liquid apparent viscosity tester and method of testing thereof, be particularly useful in magnetic field apparent viscosity and test magnetic liquid.
Background technology
The apparent viscosity of magnetic liquid (magnetic fluid) is meant the viscosity that magnetic liquid showed in the outside magnetic field.Test for apparent viscosity, external Mctague etc. are at first with the viscosity of capillary viscosimeter research tolyl cobalt magnetic fluid under externally-applied magnetic field, but capillary viscosimeter only is applicable to the mensuration of the rarer magnetic fluid viscosity of concentration, when higher or externally-applied magnetic field is very strong when concentration, the effect of magnetic field force can surpass the influence of action of gravity, magnetic fluid is flowed difficulty takes place.Therefore, using capillary viscosimeter to measure magnetic fluid viscosity only has theory significance and does not have actual value; The digital Brook-field viscosity that one of usefulness such as Deysakar has a non magnetic axle is taken into account a permanent magnet and has been studied the influence of externally-applied magnetic field to magnetic fluid viscosity.In experimentation, magnet places the next door, sample chamber, changes the influence of externally-applied magnetic field by the distance between regulating magnet and the sample chamber.Obviously, its result can only be qualitatively; The Mt new one of Japan adopts improved concentric circles tubular revolution viscosity meter to study the Changing Pattern of magnetic fluid viscosity in magnetic field with the king's of BJ University of Aeronautics ﹠ Astronautics coral.Externally-applied magnetic field is provided by electromagnet, and viscosity meter places between the two poles of the earth of electromagnet, and the mean value of the Distribution of Magnetic Field of usefulness rotor effective range inner height direction and circumferencial direction is as magnetic field intensity.Its advantage is to control the variation of a plurality of parameters, and weak point then is that the solenoid volume is too huge, and in order to overcome the influence of solenoid heating, needs circulation to cool off, and is bulky, so system complex.With abroad compare, domestic research is then started late, research strength also relatively a little less than, at present domestic still do not have a special magnetic fluid viscosity test instrument.People such as the Yang Hua of Beijing Institute of Technology have taken the lead in carrying out trial in this respect, they utilize the rotary viscosimeter of development voluntarily to study magnetic fluid viscosity change rule under the externally-applied magnetic field effect, magnetic field is produced by electromagnet, but because shielding is bad, electromagnetic field exerts an influence to the testing element in the instrument, so that the obvious distortion of test result.For research and the application that promotes domestic magnetic fluid, develop special magnetic fluid viscosity tester device and be of great significance.
Summary of the invention
The magnetic liquid apparent viscosity tester that the purpose of this invention is to provide a kind of simple in structure, easy to operate, good test effect.
Magnetic liquid apparent viscosity tester of the present invention, it is located on this bracing frame and is inserted the turning axle, temperature measuring equipment and the contactless knotmeter that rotate in the adjustable permanent magnet stator by the bracing frame that is provided with adjustable permanent magnet stator in and one and constitutes, the rotation shaft part that rotates in described insertion the is adjustable permanent magnet stator is provided with high flux sleeve, leave the gap of placing magnetic liquid to be measured between high flux sleeve external diameter and the adjustable permanent magnet diameter of stator bore, and be provided with the liquid injection hole of communication gap; Adjustable permanent magnet stator is provided with a plurality of thermopairs that link to each other with temperature measuring equipment; The top of turning axle is connected with the constant force torque motor of being regulated control by regulating circuit.Described adjustable permanent magnet stator is by inlaying ring, being located at last pole shoe and the following pole shoe of inlaying the ring two ends forms, inlay the inlaid hole that is interval with a plurality of placement cylindricality permanent magnets on the annulus of ring, also have a plurality of radial blind holes identical on its cylindrical wall with the thermopair number, each blind hole is from shallow to deep until pressing close to endoporus, become the gradient spiral to distribute, the probe of thermopair places the blind hole of inlaying ring, be located at the thermopair of inlaying on the ring and be at least 3, the number of thermopair is many more, measured temperature gradient distribution is accurate more, and the real time temperature value that obtains with extrapolation method is more near true value.Described bracing frame is made up of base and outer cover, is provided with support set in the base, and support set is provided with back up pad, and outer cover is fastened on the base, is provided with the fixedly bearing of turning axle in the outer cover; Described temperature measuring equipment is made up of the milivoltmeter of icing tube, amplifying circuit, be located on the ice tube.
The method of testing of magnetic liquid apparent viscosity tester of the present invention is with the rotation of direct current constant force torque motor driven in rotation axle, at first to injecting the standard oil or the mineral oil of known-viscosity in the gap between the high flux sleeve external diameter of described tester and the adjustable permanent magnet diameter of stator bore, start constant force torque motor transmission rotational axis, place the high flux sleeve on the turning axle to rotate thereupon, the liquid that drives in the gap is made shearing motion, measure the data of motor speed loss with contactless knotmeter, the lost data that obtains different motor speeds according to the standard oil or the mineral oil of different viscosities, thus the load-speed loss calibration curve of tester obtained; Then the reference fluid in the tester is cleaned out, in the gap, inject magnetic liquid to be measured, viscosity to magnetic liquid is tested, the size of the externally-applied magnetic field when the piece number that is located at the permanent magnet of inlaying on the ring by adjustment is controlled test, and guarantee at the magnetic direction of testing the magnetic liquid motive position perpendicular to mobile shear surface, according to the changing value contrast loss calibration curve of testing of electric motors rotating speed lost data, can directly get the apparent viscosity value of magnetic liquid.
Magnetic liquid apparent viscosity tester of the present invention and method of testing thereof, being best suited in magnetic field the apparent viscosity to magnetic liquid tests, adopt an adjustable permanent magnet stator and a turning axle that has high flux sleeve, join and temperature measuring equipment and contactless knotmeter, be provided with and leave the gap of placing magnetic liquid to be measured between high flux sleeve and the adjustable permanent magnet stator, temperature measuring equipment is provided with a plurality of thermopairs with adjustable permanent magnet stator and links to each other, by the rotation of turning axle in adjustable permanent magnet stator, utilize direct current constant force torque motor change in rotational speed to measure the test moment of torsion; Externally-applied magnetic field when testing with inserted permanent magnet control, the magnetic direction of magnetic liquid motive position to be measured is perpendicular to mobile shear surface, by changing magnetic field the apparent viscosity of magnetic liquid is tested, realized the test of magnetic fluid apparent viscosity under different magnetic field, simple and very accurate, relative error can be controlled in 1%, and it is simple in structure, good test effect has practicality widely in this technical field.
Description of drawings
Fig. 1 is a magnetic liquid apparent viscosity tester structural drawing of the present invention.
Fig. 2 is the local amplification assumption diagram of adjustable permanent magnet among Fig. 1.
Fig. 3 is a thermopair distribution plan of the present invention.
Among the figure: 1-constant force torque motor, the contactless knotmeter of 2-, 3-milivoltmeter, 4-amplifying circuit, 5-ices tube, 6-thermopair, 7-thermopair, 8-thermopair, the 9-outer cover, 10-magnetic liquid to be measured, the high flux sleeve of 11-, the adjustable permanent magnet stator of 12-, the 13-support set, 14-base, 15-back up pad, 16-turning axle, the 17-bearing, 18-shaft coupling, 19-regulating circuit, 20-liquid injection hole, the last pole shoe of 12-1-, 12-2-inlays ring, 12-3-permanent magnet, pole shoe under the 12-4-.
Embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
Magnetic liquid apparent viscosity tester of the present invention, it is mainly by adjustable permanent magnet stator 12, turning axle 16, bracing frame, constant force torque motor 1, contactless knotmeter 2, temperature measuring equipment is formed, adjustable permanent magnet stator 12 is by inlaying ring 12-2, being located at the last pole shoe 12-1 and the following pole shoe 12-4 that inlay ring 12-2 two ends forms, inlay the inlaid hole that is interval with a plurality of placement cylindricality permanent magnet 12-3 on the annulus that encircles 12-2, determine the number of inlaid hole according to the size of permanent magnet external diameter and the size of inlaying ring 12-2 diameter, the piece number of permanent magnet 12-3 in the inlaid hole is placed one at least, can place polylith arbitrarily according to the test needs.Adjustable permanent magnet stator 12 is located in the bracing frame, bracing frame is made up of base 14 and outer cover 9, be provided with support set 13 in the base 14, support set 13 stationary adjustable permanent magnet stators 12 positions, support set 13 is provided with back up pad 15, outer cover 9 is fastened on the base 14, is provided with the fixedly bearing 17 of turning axle 16 in the outer cover 9.Insert in the adjustable permanent magnet stator 12 turning axle 16 bottoms, insert the turning axle that rotates in the adjustable permanent magnet stator 12 and be provided with high flux sleeve 11 for 16 sections, leave the gap 10 of placing magnetic liquid to be measured between high flux sleeve 11 external diameters and adjustable permanent magnet stator 12 internal diameters, the gap is 0.1～1.5mm.Adjustable permanent magnet stator 12 is provided with the liquid injection hole 20 of communication gap 10, adjustable permanent magnet stator 12 is provided with 3 thermopairs that link to each other with temperature measuring equipment, thermopair can be provided with a plurality of, the number of thermopair is many more, measured temperature gradient distribution is accurate more, and the real time temperature value that obtains with extrapolation method is more near true value.3 thermopairs 6,7,8 are located at inlaying on the ring 12-2 in the adjustable permanent magnet stator 12, offer 3 radial blind holes identical inlaying on the ring 12-2 cylindrical wall with the thermopair number, 3 blind holes are from shallow to deep until pressing close to endoporus, become the gradient spiral to distribute, the probe of 3 thermopairs places the blind hole of inlaying ring 12-2, and thermopair connects by ice tube 5, amplifying circuit 4, is located at the temperature measuring equipment that the milivoltmeter 3 on the ice tube 5 is formed.Turning axle 16 connects as one by shaft coupling 18 and constant force torque motor 1, and constant force torque motor 1 is regulated control by regulating circuit 19.
The method of testing of magnetic liquid apparent viscosity tester of the present invention, at first to injecting the standard oil or the mineral oil of known-viscosity in the gap 10 between high flux sleeve 11 external diameters of described tester and adjustable permanent magnet stator 12 internal diameters, start direct current constant force torque motor 1 transmission rotational axis 16, place the high flux sleeve 11 on the turning axle 16 to rotate thereupon, the liquid that drives in the gap 10 is made shearing motion, at this moment measure data of motor speed loss with contactless knotmeter 2, by the lost data that standard oil or mineral oil with different viscosities promptly obtain different a plurality of motor speeds, can obtain the load-speed loss calibration curve of tester thus; Then the reference fluid in the tester is cleaned out, in gap 10, inject magnetic liquid to be measured by liquid injection hole 20, then the viscosity of magnetic liquid is tested one by one, be located at the size of the externally-applied magnetic field of the piece number of inlaying the permanent magnet 12-3 of ring on the 12-2 when controlling test by adjustment, and guarantee at the magnetic direction of testing the magnetic liquid motive position perpendicular to mobile shear surface, according to the load-speed loss calibration curve of the changing value of testing of electric motors rotating speed lost data contrast tester, get final product the apparent viscosity value of magnetic liquid.
Claims (6)
1. magnetic liquid apparent viscosity tester, it is characterized in that: it is located on this bracing frame and is inserted the turning axle (16), temperature measuring equipment and the contactless knotmeter (2) that rotate in the adjustable permanent magnet stator (12) by the bracing frame that is provided with adjustable permanent magnet stator (12) in and one and constitutes, described insertion is adjustable, and middle turning axle (16) section of rotating of permanent magnet stator (12) is provided with high flux sleeve (11), leaves the gap (10) of placing testing liquid between high flux sleeve (11) external diameter and adjustable permanent magnet stator (12) internal diameter; Adjustable permanent magnet stator (12) is provided with a plurality of thermopairs that link to each other with temperature measuring equipment (6), and is provided with the liquid injection hole (20) of communication gap (10); The top of turning axle (16) is connected with the constant force torque motor (1) of being regulated control by regulating circuit (19).
2. magnetic liquid apparent viscosity tester according to claim 1, it is characterized in that: described adjustable permanent magnet stator (12) is by inlaying ring (12-2), being located at last pole shoe (12-1) and the following pole shoe (12-4) of inlaying ring (12-2) two ends and forming, and inlays the inlaid hole that is interval with a plurality of placement cylindricality permanent magnets (12-3) on the annulus of ring (12-2).
3. magnetic liquid apparent viscosity tester according to claim 1 and 2, it is characterized in that: described inlaying has a plurality of and the identical radial blind holes of thermopair (6) number on ring (12-2) the cylindrical wall, each blind hole is from shallow to deep until pressing close to endoporus, become the gradient spiral to distribute, the probe of thermopair (6) places the blind hole of inlaying ring (12-2).
4. magnetic liquid apparent viscosity tester according to claim 3 is characterized in that: the described thermopair of inlaying on the ring (12-2) (6) that is located at is at least 3.
5. magnetic liquid apparent viscosity tester according to claim 1, it is characterized in that: described bracing frame is made up of base (14) and outer cover (9), be provided with support set (13) in the base (14), support set (13) is provided with back up pad (15), outer cover (9) is fastened on the base (14), is provided with the fixedly bearing (17) of turning axle (16) in the outer cover (9).
6. the method for testing of magnetic liquid apparent viscosity tester according to claim 1, it is characterized in that: at first to injecting the standard oil or the mineral oil of known-viscosity in the gap (10) between high flux sleeve (11) external diameter of described tester and adjustable permanent magnet stator (12) internal diameter, start constant force torque motor (1) transmission rotational axis (16), place the high flux sleeve (11) on the turning axle (16) to rotate thereupon, the liquid that drives in the gap (10) is made shearing motion, measure the data of motor speed loss with contactless knotmeter (2), the lost data that obtains different motor speeds according to the standard oil or the mineral oil of different viscosities, thus the load-speed loss calibration curve of tester obtained; Then the reference fluid in the tester is cleaned out, in gap (10), inject magnetic liquid to be measured, viscosity to magnetic liquid is tested, the size of the externally-applied magnetic field when the piece number that is located at the permanent magnet of inlaying on the ring (12-2) (12-3) by adjustment is controlled test, and guarantee at the magnetic direction of testing the magnetic liquid motive position perpendicular to mobile shear surface, according to the changing value contrast loss calibration curve of testing of electric motors rotating speed lost data, can directly get the apparent viscosity value of magnetic liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510041000 CN1737531A (en) | 2005-07-11 | 2005-07-11 | Magnetic liquid apparent viscosity tester and method of testing thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510041000 CN1737531A (en) | 2005-07-11 | 2005-07-11 | Magnetic liquid apparent viscosity tester and method of testing thereof |
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| CN1737531A true CN1737531A (en) | 2006-02-22 |
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| CN 200510041000 Pending CN1737531A (en) | 2005-07-11 | 2005-07-11 | Magnetic liquid apparent viscosity tester and method of testing thereof |
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Cited By (16)
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|---|---|---|---|---|
| CN102879302A (en) * | 2012-10-09 | 2013-01-16 | 山东大学 | Wide-range magnetic field viscometer for high-temperature melt, and method for measuring viscosity by using same |
| CN103217362A (en) * | 2013-03-15 | 2013-07-24 | 中国海洋石油总公司 | Drilling fluid rheological property measurement device and measurement method |
| CN103364312A (en) * | 2013-07-11 | 2013-10-23 | 青岛科技大学 | Automatic open-close type torque rheometer and mixing method |
| CN103534572A (en) * | 2011-05-16 | 2014-01-22 | 财团法人生产技术研究奖励会 | Viscosity/resilience measurement device and measurement method |
| CN104181194A (en) * | 2014-08-28 | 2014-12-03 | 北京交通大学 | Experimental device for studying heat transfer property of magnetic liquid |
| CN104359795A (en) * | 2014-11-04 | 2015-02-18 | 重庆科技学院 | On-line liquid viscosity and density detection probe |
| CN104515718A (en) * | 2013-09-30 | 2015-04-15 | 中国兵器工业第五二研究所 | Magnetic liquid magnetization viscosity measuring method and magnetic liquid magnetization viscosity measuring device |
| CN104535489A (en) * | 2015-01-08 | 2015-04-22 | 重庆材料研究院有限公司 | Magnetic control fluid mechanical property test device under high-speed shearing mode |
| CN105891050A (en) * | 2016-03-31 | 2016-08-24 | 山东大学 | Variable magnetic field high-temperature melt oscillation viscometer and rapid measurement method thereof |
| CN108463708A (en) * | 2015-11-06 | 2018-08-28 | 密歇根大学董事会 | Microfluid rheometer system based on droplet |
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| CN109541008A (en) * | 2018-12-26 | 2019-03-29 | 中国石油大学(北京) | Reduce, test the method and device of gelled crude yield stress |
| CN112525769A (en) * | 2020-11-09 | 2021-03-19 | 长江大学 | Adjustable external axial magnetic field experimental device and using method thereof |
| CN112903534A (en) * | 2021-01-28 | 2021-06-04 | 天津师范大学 | Magnetofluid viscosity measuring device and method |
| CN114166695A (en) * | 2021-11-18 | 2022-03-11 | 复旦大学 | Method for testing dynamic viscosity of magnetorheological fluid under action of magnetic field |
| CN116818606A (en) * | 2022-10-14 | 2023-09-29 | 东莞市鸿馥生物科技有限公司 | Tobacco tar dynamic viscosity detection device |
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2005
- 2005-07-11 CN CN 200510041000 patent/CN1737531A/en active Pending
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| CN103534572A (en) * | 2011-05-16 | 2014-01-22 | 财团法人生产技术研究奖励会 | Viscosity/resilience measurement device and measurement method |
| US10184872B2 (en) | 2011-05-16 | 2019-01-22 | The Foundation For The Promotion Of Industrial Science | Viscosity/elasticity measurement device and measurement method |
| CN102879302A (en) * | 2012-10-09 | 2013-01-16 | 山东大学 | Wide-range magnetic field viscometer for high-temperature melt, and method for measuring viscosity by using same |
| CN103217362A (en) * | 2013-03-15 | 2013-07-24 | 中国海洋石油总公司 | Drilling fluid rheological property measurement device and measurement method |
| CN103364312A (en) * | 2013-07-11 | 2013-10-23 | 青岛科技大学 | Automatic open-close type torque rheometer and mixing method |
| CN103364312B (en) * | 2013-07-11 | 2015-06-24 | 青岛科技大学 | Automatic open-close type torque rheometer and mixing method |
| CN104515718A (en) * | 2013-09-30 | 2015-04-15 | 中国兵器工业第五二研究所 | Magnetic liquid magnetization viscosity measuring method and magnetic liquid magnetization viscosity measuring device |
| CN104515718B (en) * | 2013-09-30 | 2017-09-29 | 中国兵器工业第五二研究所 | Magnetic liquid magnetizes viscosity determining procedure and device |
| CN104181194A (en) * | 2014-08-28 | 2014-12-03 | 北京交通大学 | Experimental device for studying heat transfer property of magnetic liquid |
| CN104359795A (en) * | 2014-11-04 | 2015-02-18 | 重庆科技学院 | On-line liquid viscosity and density detection probe |
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| CN108463708A (en) * | 2015-11-06 | 2018-08-28 | 密歇根大学董事会 | Microfluid rheometer system based on droplet |
| US11879820B2 (en) | 2015-11-06 | 2024-01-23 | Regents Of The University Of Michigan | Droplet-based microfluidic rheometer system |
| CN105891050A (en) * | 2016-03-31 | 2016-08-24 | 山东大学 | Variable magnetic field high-temperature melt oscillation viscometer and rapid measurement method thereof |
| CN109357971A (en) * | 2018-12-14 | 2019-02-19 | 沈阳建筑大学 | A kind of float type magnetorheological liquid viscosity test macro and test method |
| CN109541008A (en) * | 2018-12-26 | 2019-03-29 | 中国石油大学(北京) | Reduce, test the method and device of gelled crude yield stress |
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| CN112525769B (en) * | 2020-11-09 | 2023-12-26 | 长江大学 | Adjustable externally-applied axial magnetic field experimental device and application method thereof |
| CN112903534A (en) * | 2021-01-28 | 2021-06-04 | 天津师范大学 | Magnetofluid viscosity measuring device and method |
| CN114166695A (en) * | 2021-11-18 | 2022-03-11 | 复旦大学 | Method for testing dynamic viscosity of magnetorheological fluid under action of magnetic field |
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