CN201909747U - Heating and temperature detection mechanism for magnetorheological material tester - Google Patents
Heating and temperature detection mechanism for magnetorheological material tester Download PDFInfo
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- CN201909747U CN201909747U CN2011200281990U CN201120028199U CN201909747U CN 201909747 U CN201909747 U CN 201909747U CN 2011200281990 U CN2011200281990 U CN 2011200281990U CN 201120028199 U CN201120028199 U CN 201120028199U CN 201909747 U CN201909747 U CN 201909747U
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- magnetorheological
- set collar
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- electric heater
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Abstract
The utility model discloses a heating and temperature detection mechanism for a magnetorheological material tester. The heating and temperature detection mechanism is characterized in that: the heating and temperature detection mechanism comprises a fixed ring, the fixed ring is positioned over a shear ring, and is matched with the shear ring to form a magnetorheological fluid cavity of which the outer end is closed, the upper surface of the fixed ring is provided with a through hole communicated with the magnetorheological fluid cavity, the heating and temperature detection mechanism also comprises an electric heater and a temperature probe, the electric heater is positioned on the upper surface of the fixed ring, the temperature probe is arranged in the through hole of the upper surface of the fixed ring, and the electric heater and the temperature probe are connected with a computer control center. The magnetorheological material tester adopting the structure can test the affection of temperature on the performance of magnetorheological fluid, and because the three factors (temperature, magnetic field intensity and shear strain rate) affecting the magnetorheological fluid can be controlled, the performance parameters of the magnetorheological fluid can be more comprehensively detected.
Description
Technical field
The utility model relates to the technical field of magnetic flow liquid, especially relates to heating and temperature testing organization of a kind of magnetorheological materials testing apparatus.
Background technology
Magnetorheological materials is a kind of novel intelligent material, comprises magneto-rheological grease, magnetorheological lastics, magnetic flow liquid etc., wherein the research of magnetic flow liquid and being most widely used.Magnetic flow liquid, be a kind ofly to be uniformly distributed in formed suspended mixture in the specific solvent by the micron order ferromagnetic particle, when no externally-applied magnetic field, rheological characteristics and common Newtonian fluid are similar, but adding strong magnetic field action following time outside can produce magnetic rheology effect (Magnetorheological Effect MRE), be that apparent viscosity can increase several magnitude in Millisecond, present the mechanical property of class solid, and reversible variation takes place with magnetic field in shear stress and viscosity.This is that its suspended magnetic particles is sensed as ferromagnetism because be in strong magnetic field action following time when magnetic flow liquid, and the bridge of formation " chain " shape makes it become stickiness class solid in moment by liquid between magnetic pole.
Magnetic flow liquid by Rabinow since utility model in 1948, existing certain theoretical research and application practice in numerous engineerings fields such as machinery, Aero-Space, oil, civil engineering work.Along with the development of the production practices of science and technology, its application is more and more wider, constantly has the magnetic flow liquid of new formulation to occur.So how the performance of the magnetic flow liquid of new generation is tested, just needs special testing apparatus.
Existed some to be used to detect the technology of magnetorheological fluid performance in the prior art, a kind of magnetorheological polishing solution rheology testing apparatus of being announced such as China utility model patent ZL200810030896.2, it comprises computing machine, support and be fixed in torque-measuring apparatus on the support, field generator for magnetic, cutting mechanism and driving mechanism, torque-measuring apparatus, field generator for magnetic links to each other with computing machine with driving mechanism, the cutting mechanism that is installed in the field generator for magnetic comprises shearing ring and set collar, shearing ring is positioned at the top of set collar, excircle place on shearing ring and the set collar is provided with shearing ring edge and the set collar edge with certain altitude respectively, form the liquid storage groove that is used for storing Magnetorheologicai polishing liquid between shearing ring edge and the set collar edge, the top, shearing ring center that is plate-like is provided with the turning axle that links to each other with driving mechanism, and the below, center of set collar is provided with the coupling shaft that links to each other with torque-measuring apparatus.That this utility model has is simple and compact for structure, with low cost, control convenient, stable testing and precision advantages of higher.
The test macro of China's utility application number 01113648.0 a kind of magnetic current and liquid flow variation characteristic of being announced and for example, its structure comprise magnetic conductive loop and hold the cavity volume of magnetic flow liquid and be used to measure the foil gauge of moment of torsion and measure the Hall plate of magnetic field intensity.The tubbiness airtight container that the collar that is made of non-magnet material that its cavity volume is the upper and lower isometrical disk that is made of two blocks of permeability magnetic materials, the lower disc periphery is connected constitutes, last disc shaft and stepper motor main shaft join, and are connected with elevating mechanism on the lower disc axle.Bulk containers be provided with nearby two or more, the field coil that is symmetrically distributed of above lower disc axial line, Hall plate and foil gauge are separately positioned on lower disc card below and the lower disc axle surface.This device Distribution of Magnetic Field is even, R/h ratio height, and its torque measurement position is arranged on the stationary axle that is made of non-magnet material, can not be subjected to the influence of magnetic field force and the influence of supporting moment of friction, has improved measuring accuracy.
These existing pick-up units can detect the part characteristic of magnetic flow liquid, but can not detect more fully performance of magnetic flow liquid, such as not detecting the influence of temperature to magnetorheological fluid performance.So there is the limited defective of measuring ability.
The utility model content
At above-mentioned the deficiencies in the prior art, the technical problems to be solved in the utility model is: provide a kind of magnetorheological materials testing apparatus to heat and temperature testing organization, the feasible magnetorheological materials testing apparatus that obtains based on this mechanism can detect the performance of magnetic flow liquid more all sidedly.
In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model:
A kind of magnetorheological materials testing apparatus is heated and temperature testing organization, it is characterized in that, comprise set collar, set collar be positioned at shearing ring top and with can form the magnetorheological sap cavity that an outer end is sealed at mating surface after shearing ring cooperates, described set collar upper surface is provided with the through hole identical with magnetorheological sap cavity, also comprise electric heater unit that is positioned at the set collar upper surface and the temp probe that is arranged at set collar upper surface through hole, described electric heater unit links to each other with computer controlling center with temp probe.
In the technical program, be provided with electric heater unit, can control the temperature of described electric heater unit, can pass through the real-time detected temperatures of temp probe simultaneously by computer controlling center at the set collar upper surface.Temp probe is arranged in the through hole, can simultaneously temp probe be arranged in the magnetorheological sap cavity so that the heat of electric heater unit is easier to be delivered in the magnetorheological sap cavity by through hole, can be so that to detect the temperature of magnetic flow liquid more accurate.Like this, can control and detect the temperature of magnetic flow liquid, be convenient to detect the influence of temperature, can more comprehensively detect the performance of magnetic flow liquid, also have the accurate advantage of test result simultaneously magnetorheological fluid performance by the utility model.
The applicant has also designed and has a kind ofly heated and temperature testing organization and the magnetorheological materials testing apparatus that obtains based on above-mentioned, and its structure is as follows.
A kind of magnetorheological materials testing apparatus comprises frame, and described frame is provided with:
Field generator for magnetic, described field generator for magnetic comprises magnetic pole and lower magnetic pole, described upward magnetic pole comprises the last lining and the solenoid winding that is positioned at the lining outside of the electrical pure iron manufacturing of vertical setting, described lower magnetic pole comprise vertical setting the electrical pure iron manufacturing following lining and be positioned at the down solenoid winding of lining outside, described lining down upper end has the step that extends laterally; The described solenoid winding of going up lining and last lining outside is fixed on the upper junction plate, and upper junction plate is connected in frame, and the solenoid winding of described lining down and following lining outside is fixed on the lower connecting plate, and lower connecting plate is fixed in frame;
Cutting mechanism, described cutting mechanism comprise the rotating shaft of concentric setting, shearing ring and the set collar that weak magnetic material makes; Described rotating shaft vertically is arranged on down bush inside by bearing, and the rotating shaft below connects motor by speed reduction unit; Described shearing ring is fixed on the rotating shaft upper end; Described set collar upper surface has an assembling round platform, and assembling round platform sidewall is provided with positioning key; Described shearing ring upper surface concentric is provided with the magnetorheological liquid bath that is used to hold magnetic flow liquid of an annular, magnetorheological liquid bath position and the following lining upper end step position that of extending laterally is corresponding, the following circular ring plate that the interlocking of magnetic flow liquid trench bottom has an electrical pure iron to make, magnetorheological liquid bath outer wall height is higher than inwall, concentric is provided with the groove that overflows of an annular within encircling in the magnetorheological liquid bath, overflow in the groove ball grooves that concentric within the ring is provided with an annular, ball is installed in the ball grooves; The corresponding described magnetorheological liquid bath of described set collar lower surface is provided with the boss of an annular, and this annular boss obtains last circular ring plate position and last lining lower end position correspondence by the last circular ring plate interlocking of an electrical pure iron material on set collar; After described shearing ring and set collar are fitted, can in magnetorheological liquid bath, form the magnetorheological sap cavity of an outer end sealing, in overflowing groove, form a spill cavity that is communicated with magnetorheological sap cavity, can make shearing ring and set collar form rolling friction simultaneously and cooperate by ball; Described set collar upper surface is provided with the through hole that is communicated with spill cavity;
Shear stress testing agency, comprise a power transmission tube that is arranged on bush inside, power transmission tube inwall lower end is provided with keyway, the assembling round platform of described set collar upper surface can be pegged graft, and the power transmission tube is inner also to make the positioning key on the assembling round platform be engaged in slidably in the keyway of power transmission tube inside, power transmission tube upper end is fixed on the upper junction plate, the power transmission drum outer wall is provided with the step of an indent, and the step of this indent is provided with shear stress sensor;
Heat and temperature testing organization, comprise electric heater unit that is positioned at the set collar upper surface and the temp probe that is arranged at set collar upper surface through hole;
Elevating mechanism comprises vertically being fixedly set in the field generator for magnetic vertical rod of several location and the 3rd web joint that is fixedly connected on the upper junction plate top all around that described upper junction plate and the 3rd web joint are socketed in the vertical rod of described location slidably; Elevating mechanism also comprises a vertical screw rod that is provided with, the screw rod middle part is engaged on the frame by screw thread rotationally, the screw rod lower ends downward is passed the 3rd web joint and is provided with a Support tray, be provided with a circle ball between Support tray and the 3rd web joint and realize the supporting and the rolling friction of the 3rd web joint are cooperated, be horizontally arranged with handle on the screw rod by ball;
Control system, described control system comprise computer controlling center and the described motor that is connected with computer controlling center, solenoid winding, shear stress sensor, electric heater unit and temp probe.
In this testing apparatus, when it uses magnetic flow liquid to be detected is put into the magnetorheological liquid bath of shearing ring, set collar closes, pressing down the assembling round platform that makes set collar by the last magnetic pole of elevating mechanism control is fitted in the power transmission tube, starter motor drives shearing ring and rotates, making that shearing ring is relative with set collar rotates, and begins then to detect.During detection, can control motor speed by control system and regulate the shearing strain rate, detect actual shear stress by shear stress sensor simultaneously; Regulate temperature by electric heater unit, detect the magnetic flow liquid actual temperature by temp probe simultaneously; By control solenoid winding current size controlling magnetic field intensity; Can detect and calculate the linear relationship between the shear stress of magnetic flow liquid and temperature, shearing strain rate, the magnetic field intensity three like this, obtain the characteristic of magnetic flow liquid to be detected.Wherein, because the solenoid winding produces between magnetic field and the solenoid winding current strict corresponding relationship is arranged, also there is strict corresponding relationship between current of electric and the shearing ring rotating speed, event can detect this corresponding relation earlier and be preset in by program in the computer controlling center of control system, directly regulate solenoid winding magnetic field size during testing apparatus work by control solenoid winding current, control the shearing ring rotating speed by the control current of electric, need not to be provided with again separately magnetic field detection mechanism and rotary speed tester structure, and variation of temperature is subjected to external influence easily, detect the magnetic flow liquid actual temperature so temp probe need be set, make the degree of accuracy of final measurement to be guaranteed.
In this testing apparatus, frame can be set to tower structure, is used to support all the other members.The last lining of the manufacturing of electrical pure iron described in the field generator for magnetic and following lining can be guided to the middle part with the magnetic field concentration that solenoid produces, increase and be positioned at the shearing ring of magnetic pole and lower magnetic pole medium position and the magnetic flux of set collar position, particularly descend the lining upper end to have a step that outwards extends, the corresponding position, magnetorheological sap cavity position that this step obtains after extending into and closing up with shearing ring and set collar, going up simultaneously the lining lower end position also is and magnetorheological sap cavity position correspondence, so can further make the magnetic flux at magnetorheological sap cavity place reach maximum, the coil current that can use less coil like this and reduce produces the bigger required magnetic flux of test, has reduced the device implementation cost indirectly.In the field generator for magnetic, described lower connecting plate is directly to be fixed on the frame, and upper junction plate is the cooperation frame activity relatively by elevating mechanism then.In the described cutting mechanism, motor connects by speed reduction unit and drives the shearing ring rotation, provides shearing power also can adjust the shearing strain rate by the control motor.Wherein said shearing ring is meant that when test is by this shearing ring rotation and shearing force is provided, but actual shearing ring is fixedly to be assemblied on the lower magnetic pole, described set collar is meant that when test this set collar upwards maintained static in week, but actual this set collar is limited and be not fixed; Shearing ring and set collar adopt weak magnetic material to make, and preferably adopt brass, but also can adopt other weak magnetic materials.Following circular ring plate that the electrical pure iron that is provided with in the described cutting mechanism makes and last circular ring plate also can reach the effect of the magnetorheological sap cavity of further increase position magnetic flux, can adopt press to push by force when specifically implementing it is rabbeted into.The spill cavity that overflows groove formation that is provided with can play following effect, and the one, reduce the frictional plane between set collar and the shearing ring, make that the pivoting friction shearing force between set collar and the shearing ring concentrates on the magnetic flow liquid as far as possible, make testing result accurate; The 2nd, owing to be provided with electric heater unit in this testing apparatus, when probe temperature influences magnetic flow liquid, after being heated, magnetic flow liquid may produce expansion, the magnetic flow liquid that overflows that expands like this can enter in the spill cavity, avoids experimental result is exerted an influence.The 3rd is that the set collar upper surface of spill cavity correspondence is provided with the through hole that is communicated with spill cavity, be arranged on like this that the heat of electric heater unit of set collar upper surface is easier to be delivered in the magnetic flow liquid in the spill cavity by through hole, because spill cavity is communicated with setting with magnetorheological sap cavity, so magnetic flow liquid temperature basically identical at two places, can detect the temperature of magnetic flow liquid by the temp probe that in through hole, is provided with, make things convenient for temperature detection to make that simultaneously temperature detection result is more accurate.Owing to shearing ring when testing produces rotation,, can in the through hole of spill cavity, not run out of simultaneously so magnetic flow liquid can be subjected to certain centrifugal action.Magnetorheological liquid bath outer wall height is higher than inwall, can strengthen the sealing effect that stops to magnetic flow liquid, avoids magnetic flow liquid to run out of from the slit in the magnetorheological sap cavity outside under centrifugal action.Ball grooves that is provided with and ball also can further reduce friction, make that the rotational shear friction between shearing ring and the set collar mainly concentrates on the magnetic flow liquid place, improve detection accuracy.In the described shear stress testing agency, carry out the transmission of shearing force by the power transmission tube, power transmission tube upper end is fixed on the upper junction plate, the lower end is slidingly matched and carry-over moment by the positioning key of keyway and set collar assembling round platform, on the step of power transmission drum outer wall indent shear stress sensor is set shear stress is detected.Described shear stress sensor can adopt the mode of half-bridge paster or adopt other forms of shear stress sensor in the prior art, owing to belong to the prior art content, so not at this detailed description.Described heat and temperature testing organization in, electric heater unit specifically can adopt the structure around the resistance wire heating that forms, wherein electric heater unit and temp probe all belong to existing mature technology content, the place that the utility model is made contributions for prior art is electric heater unit and temp probe are used for this position, make this testing apparatus can detect the influence of temperature to magnetorheological fluid performance, and do not lie in the structure of electric heater unit and temp probe self, so not at this detailed description.The setting of described elevating mechanism, can carry out lifting to last magnetic pole, make things convenient for the installation and removal of set collar, make things convenient for the replacing of magnetic flow liquid, simultaneously, owing to be being slidingly matched of key and keyway between the power transmission tube in set collar and the last magnetic pole, so when testing, can also go up at certain altitude (certain altitude digital and keyway cooperate in the length range of section) last position of magnetic pole is adjusted, detect the performance change of magnetic flow liquid when the different magnetic field position.During elevating mechanism work, rotary handle drives screw rod and moves upward, can drive the 3rd web joint and then drive upper junction plate and last magnetic pole by Support tray and move upward, when rotary handle drive screw rod moved downward, upper junction plate and last magnetic pole can move downward under the deadweight effect.The location vertical rod is used for guiding, and magnetic pole and lower magnetic pole are aimed in the assurance.This elevating mechanism self also has simple in structure, rapid operation, Purely mechanical structure and advantages such as low price.In the described control system, described computer controlling center is an integrated upperseat concept, computer controlling center is integrated with functions such as control test required temperature control function, digital display regulatory function, motor frequency conversion function, magnetic field and changes of magnetic field gradient control function, shaft coupling rotating speed control function, these all belong to the common practise content in electrical control field, do not belong to the place that the application makes contributions to prior art, so not at this detailed description.
In sum, the magnetorheological materials testing apparatus that obtains based on the utility model, owing to set up and heated and temperature testing organization, so than existing testing apparatus, can test out the influence of temperature to magnetorheological fluid performance, because three factors (temperature, magnetic field intensity and shearing strain rate) and the factors vary gradient that influence magnetic flow liquid all can be controlled, so the performance parameter of detected magnetic flow liquid more all sidedly.It is more accurate also to have testing result simultaneously, detects the advantage of better effects if.
Description of drawings
Fig. 1 is the structural representation of the magnetorheological materials testing apparatus that obtains based on the utility model structure.
Fig. 2 is a structural representation of going up the magnetic pole place among Fig. 1 separately.
Fig. 3 is the structural representation at independent lower magnetic pole place among Fig. 1.
Fig. 4 is the structural representation after independent set collar and shearing ring are worked good among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and a kind of magnetorheological materials testing apparatus of the utility model structure that adopted structure of the present utility model is described in further detail.
As shown in Figures 1 to 4, a kind of magnetorheological materials testing apparatus comprises frame 1, and described frame 1 is provided with:
Field generator for magnetic, described field generator for magnetic comprises magnetic pole and lower magnetic pole, described upward magnetic pole comprises the last lining 2 and the solenoid winding 3 that is positioned at the lining outside of the electrical pure iron manufacturing of vertical setting, described lower magnetic pole comprises the following lining 4 and the solenoid winding 5 that is positioned at following lining outside of the electrical pure iron manufacturing of vertical setting, and described lining 4 upper ends down have the step that extends laterally; The described solenoid winding 3 of going up lining 2 and last lining outside is fixed on the upper junction plate 6, and upper junction plate 6 is connected in frame 1, and the solenoid winding 5 of described lining 4 down and following lining outside is fixed on the lower connecting plate 7, and lower connecting plate 7 is fixed in frame 1; During enforcement, described each solenoid winding comprises lattice coil that the adjacent successively solderless wrapped connection side by side of enameled wire obtains of employing, adopts insulating paper to separate between every layer line circle, and solenoid winding external packets is wrapped with insulating paper;
Cutting mechanism, described cutting mechanism comprise the rotating shaft 8 of concentric setting, shearing ring 9 and the set collar 10 that weak magnetic material makes; Described rotating shaft 8 vertically is arranged on down lining 4 inside by bearing 11, and rotating shaft 8 belows connect motor 13 by speed reduction unit 12; Described shearing ring 9 is fixed on rotating shaft 8 upper ends; Described set collar 10 upper surfaces have an assembling round platform 14, and assembling round platform 14 sidewalls are provided with positioning key 15; Described shearing ring 9 upper surface concentrics are provided with the magnetorheological liquid bath 16 that is used to hold magnetic flow liquid of an annular, magnetorheological liquid bath 16 positions and the following lining 2 upper ends step position that of extending laterally is corresponding, the following circular ring plate 17 that the interlocking of magnetorheological liquid bath 16 bottoms has an electrical pure iron to make, magnetorheological liquid bath 16 outer wall height are higher than inwall, what concentric was provided with an annular within the ring in the magnetorheological liquid bath 16 overflows groove 18, overflow in the groove ball grooves that concentric within the ring is provided with an annular, ball 19 is installed in the ball grooves; The corresponding described magnetorheological liquid bath 16 of described set collar 10 lower surfaces is provided with the boss of an annular, and this annular boss obtains last circular ring plate 20 positions and last lining 2 lower end position correspondences by last circular ring plate 20 interlockings of an electrical pure iron material on set collar 10; After described shearing ring 9 and set collar 10 are fitted, can in magnetorheological liquid bath 16, form the magnetorheological sap cavity of an outer end sealing, in overflowing groove 18, form a spill cavity that is communicated with magnetorheological sap cavity, can make shearing ring 9 and set collar 10 form rolling friction simultaneously and cooperate (all the other binding faces of shearing ring and set collar stay the gap about 0.5mm when specifically implementing) by ball 19; Described set collar 10 upper surfaces are provided with the through hole 22 that is communicated with spill cavity;
Shear stress testing agency, comprise a power transmission tube 23 that is arranged on lining 2 inside, power transmission tube 23 inwall lower ends are provided with keyway 24, can peg graft power transmission tube 23 of the assembling round platform 14 of described set collar 10 upper surfaces is inner and make the positioning keys 15 on the assembling round platforms 14 be engaged in slidably in the keyway 24 of power transmission tube 23 inside, power transmission tube 23 upper ends are fixed on the upper junction plate 6, power transmission tube 23 outer walls are provided with the step of an indent, and the step of this indent is provided with shear stress sensor 25;
Heat and temperature testing organization, comprise electric heater unit 26 that is positioned at set collar 10 upper surfaces and the temp probe 27 that is arranged at set collar 10 upper surface through holes 22;
Elevating mechanism, comprise vertically being fixedly set in field generator for magnetic several location vertical rod 28 and the 3rd web joint 34 that is fixedly connected on upper junction plate 6 tops all around, described upper junction plate 6 and the 3rd web joint 34 are socketed in the described location vertical rod 28 slidably; Elevating mechanism also comprises a vertical screw rod 29 that is provided with, screw rod 29 middle parts are engaged on the frame 1 rotationally by screw thread, screw rod 29 lower ends downward are passed the 3rd web joint 34 and are provided with a Support tray 30, be provided with a circle ball 31 between Support tray 30 and the 3rd web joint 34 and realize the supporting and the rolling friction of the 3rd web joint 34 are cooperated by ball 31, screw rod 29 upper ends are horizontally arranged with handle 32; Location vertical rod 28 upper ends of described elevating mechanism are the cone segments of point upward, and vertical rod 28 lower ends, location are cylindrical section;
Control system, described control system comprise computer controlling center 33 and the described motor 13 that is connected with computer controlling center 33, solenoid winding, shear stress sensor 25, electric heater unit 26 and temp probe 27.
Claims (1)
1. a magnetorheological materials testing apparatus is heated and temperature testing organization, it is characterized in that, comprise set collar, set collar be positioned at shearing ring top and with can form the magnetorheological sap cavity that an outer end is sealed at mating surface after shearing ring cooperates, described set collar upper surface is provided with the through hole identical with magnetorheological sap cavity, also comprise electric heater unit that is positioned at the set collar upper surface and the temp probe that is arranged at set collar upper surface through hole, described electric heater unit links to each other with computer controlling center with temp probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200281990U CN201909747U (en) | 2011-01-27 | 2011-01-27 | Heating and temperature detection mechanism for magnetorheological material tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200281990U CN201909747U (en) | 2011-01-27 | 2011-01-27 | Heating and temperature detection mechanism for magnetorheological material tester |
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| Publication Number | Publication Date |
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| CN201909747U true CN201909747U (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200281990U Expired - Fee Related CN201909747U (en) | 2011-01-27 | 2011-01-27 | Heating and temperature detection mechanism for magnetorheological material tester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507384A (en) * | 2011-10-13 | 2012-06-20 | 重庆大学 | Controllable microcosmic dynamic-observation device for magnetorheological material in magnetic field |
| CN103901168A (en) * | 2014-04-08 | 2014-07-02 | 中国矿业大学 | Magnetorheological fluid behavior tester |
-
2011
- 2011-01-27 CN CN2011200281990U patent/CN201909747U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507384A (en) * | 2011-10-13 | 2012-06-20 | 重庆大学 | Controllable microcosmic dynamic-observation device for magnetorheological material in magnetic field |
| CN102507384B (en) * | 2011-10-13 | 2013-07-10 | 重庆大学 | Controllable microcosmic dynamic-observation device for magnetorheological material in magnetic field |
| CN103901168A (en) * | 2014-04-08 | 2014-07-02 | 中国矿业大学 | Magnetorheological fluid behavior tester |
| CN103901168B (en) * | 2014-04-08 | 2015-09-23 | 中国矿业大学 | A kind of magnetic flow liquid characteristic tester |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20120127 |