CN100392767C - Magnetic suspension hard disc single free degree multi-function experiment platform - Google Patents
Magnetic suspension hard disc single free degree multi-function experiment platform Download PDFInfo
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- CN100392767C CN100392767C CNB031185037A CN03118503A CN100392767C CN 100392767 C CN100392767 C CN 100392767C CN B031185037 A CNB031185037 A CN B031185037A CN 03118503 A CN03118503 A CN 03118503A CN 100392767 C CN100392767 C CN 100392767C
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Abstract
The present invention relates to an experiment table, and particularly relates to a magnetic suspension hard disc single free degree multifunctional experiment table which comprises a control part, wherein the control part is composed of a displacement sensor, A/D, DSP, D/A and a power amplifier. The present invention is characterized in that a testing mechanical part comprises a central shaft and a magnetic device; the control part is connected with the detecting mechanical part; the magnetic device is a permanent magnet or an electromagnet or the permanent magnet and the electromagnet, and is arranged outside the central shaft; the power amplifier is connected with a stator coil of the testing mechanical part; a control system detects the displacement of a rotor by the displacement sensor which is connected to the experiment table. The displacement sensor transmits displacement signals into voltage signals, the voltage signals are fed back to a controller, the controller sends out control signals, the power amplifier adjusts the sizes of output current according to the control signals to change the sizes of electromagnetic force of the electromagnet, and the displacement of the rotor is changed by the change of the electromagnetic force. The present invention can detect various dynamic characteristics of the rotor under high-speed rotary condition.
Description
Technical field
The present invention relates to a kind of experiment table, relate to the multi-functional experiment test device of a kind of magnetically floating hard disk specifically.
Background technology
Inquire into Micro Electro Mechanical System, mechanical property, mechanical characteristic and the size effect of magnetic levitation CD rotor, and practical study magnetic levitation CD rotor-support-foundation system not only has the high theoretical meaning, and have bigger practical value.Magnetic levitation technology is applied to the supporting of hard disk CD, eliminate the Mechanical Contact of bearing and hard disk CD rotor fully, not only can increase substantially the hard disk CD speed, thoroughly solve the bottleneck of hard disk optical disc development, also make the hard disk CD drive have precision height, heating less, the hard disk and the incomparable characteristics of CD drive of other bearing supporting such as low in energy consumption, noiseless.
Investigate magnetic suspension rotor system from the angle of mechanical principle, support a rotary main shaft and need limit its 5 degree of freedom, but bring machinery inevitably owing to compact narrow space architectural characteristic in the small magnetic suspension rotor system, electromagnetic field, the complicated coupling situation in temperature field, bring difficulty to research work, in order to address this problem, on the basis of analyzing existing actual process and assemble and control ability, our at first propose to take to distribute method of research, promptly design single-degree-of-freedom hard disk experiment table earlier, analyze its mechanical-electric coupling situation, on the basis of fully understanding the single-degree-of-freedom magnetic suspension rotor, carry out the design and the coupling analysis of multiple degrees of freedom control magnetically floating hard disk again.
Summary of the invention
The object of the present invention is to provide a kind of central axis in suspended state, detection rotor magnetically floating hard disk single-degree-of-freedom multi-function experimental rig in the various dynamic perfromances of high speed rotating condition.
Technical scheme of the present invention is: magnetically floating hard disk single-degree-of-freedom multi-function experimental rig, relate to the detection mechanical part, it is characterized in that: detect mechanical part and comprise guidepost 6, linear bearing 7, top tray 8, spacer 9, screw 10, following pallet 11, base plate 16, magnetic device, fixedly connected with base plate 16 respectively in the lower end of two guideposts 6, top tray 8, the two ends of following pallet 11 are respectively equipped with linear bearing 7, top tray 8, the linear bearing 7 of the same end of following pallet 11 is nested with a guidepost 6 respectively, top tray 8, the linear bearing 7 of the other end of following pallet 11 is nested with another guidepost 6 respectively; Top tray 8, down pallet 11 is fixedly connected by screw 10, is with spacer 9 on the screw 10, and spacer 9 is in top tray 8, down between the pallet 11; The upper end at top tray 8 middle parts has central shaft hole, the bottom at top tray 8 middle parts is provided with the magnetic device chamber, central shaft hole on the top tray 8 communicates with the magnetic device chamber, the bottom at following pallet 11 middle parts has central shaft hole, the upper end at following pallet 11 middle parts is provided with the magnetic device chamber, central shaft hole on the following pallet 11 communicates with the magnetic device chamber, the concentricity axis of central shaft hole of the central shaft hole of top tray 8 and following pallet 11, the upper end of central shaft 12, lower end pass the central shaft hole of top tray 8, the central shaft hole of following pallet 11 respectively; Hard disc 5 is fixedlyed connected with the upper end of central shaft 12, and magnetic device is between the magnetic device chamber of top tray 8, following pallet 11; Central shaft 12 lower ends are connected with electric machine main shaft by screw thread.
Described magnetic device comprises copper sheathing 1, permanent-magnetic clamp 2, stator 13, central shaft 12 is the step shape shaft, the step axle upper end of central shaft 12 is bonded with permanent-magnetic clamp 2, copper sheathing 1 is positioned at top tray 8 magnetic device chambeies and fixedlys connected with top tray 8, the groove of copper sheathing 1 is bonded with permanent-magnetic clamp 2, permanent-magnetic clamp 2 on the copper sheathing 1 is positioned at the top of the permanent-magnetic clamp 2 on the central shaft 12, and the position of the permanent-magnetic clamp 2 on the permanent-magnetic clamp 2 on the copper sheathing 1 and the central shaft 12 is corresponding; Thrust disc 15 is nested with central shaft 12 and fixedlys connected, and stator 13 is positioned at the magnetic device chamber of following pallet 11 and fixedlys connected with following pallet 11, and stator 13 is positioned at the below of thrust disc 15, is provided with coil 14 in the stator 13.
Described magnetic device comprises stator 13, be respectively equipped with stator 13 in the magnetic device chamber of top tray 8, following pallet 11, thrust disc 15 is nested with central shaft 12 and fixedlys connected, the magnetic device chamber inner stator 13 of top tray 8 is positioned at the top of thrust disc 15, the magnetic device chamber inner stator 13 of following pallet 11 is positioned at the below of thrust disc 15, is provided with coil 14 in the stator 13.
Described magnetic device comprises copper sheathing 1, permanent-magnetic clamp 2, central shaft 12 is the step shape shaft, the step axle upper and lower side of central shaft 12 is bonded with permanent-magnetic clamp 2 respectively, is respectively equipped with copper sheathing 1 in the magnetic device chamber of top tray 8, following pallet 11, and the groove of copper sheathing 1 is bonded with permanent-magnetic clamp 2; Permanent-magnetic clamp 2 on the copper sheathing 1 in the magnetic device chamber of top tray 8 is positioned at the top of permanent-magnetic clamp 2 of the step axle upper end of central shaft 12, and the position of the permanent-magnetic clamp 2 on the permanent-magnetic clamp 2 on the copper sheathing 1 the magnetic device chamber of top tray 8 in and the step axle of central shaft 12 is corresponding; Permanent-magnetic clamp 2 on the copper sheathing 1 in the magnetic device chamber of following pallet 11 is positioned at the below of permanent-magnetic clamp 2 of the step axle lower end of central shaft 12, and the permanent-magnetic clamp 2 on the copper sheathing 1 in the magnetic device chamber of following pallet 11 is corresponding with the position of the permanent-magnetic clamp 2 of the step axle lower end of central shaft 12.
The present invention can study single-degree-of-freedom magnetic suspension rotor mechanical dynamics property under the different parameters condition fully effectively, the Distribution of Magnetic Field under the different magnetic field shielding condition and the distribution situation in temperature field can also simulate the difference control and the mechanical dynamics property that mix magnetic suspension rotor under three kinds of different conditions at electromagnetism, permanent magnetism, permanent-magnetism electromagnetic.Central shaft of the present invention can high speed rotating, but can not move up and down, pallet can move up and down, can select for use different parts to be combined into different structures, can analyze and study the single-degree-of-freedom magnetic suspension rotor all sidedly by this experiment table, be convenient to from now on research on this basis suspension of five-freedom degree magnetic hard disk rotor.
Description of drawings
Fig. 1 is that electromagnetism of the present invention and permanent magnetism mix control type figure
Fig. 2 is full electromagnetic control type figure of the present invention
Fig. 3 is full permanent magnetism control type figure of the present invention
Wherein pallet, 12-central shaft, 13-stator, 14-coil, 15-thrust disc, 16-base plate under 1-copper sheathing, 2-permanent-magnetic clamp, 3-central shaft screw, 4-back-up ring, 5-hard disc, 6-guidepost, 7-linear bearing, 8-top tray, 9-spacer, 10-screw, the 11-.
Embodiment
Example 1: electromagnetism and permanent magnetism mix control structure, as shown in Figure 1,
Magnetically floating hard disk single-degree-of-freedom multi-function experimental rig, it is by control section, the detection mechanical part is formed, control section is by displacement transducer, A/D, DSP (digital information processor), D/A and power amplifier constitute, detect mechanical part and comprise guidepost 6, linear bearing 7, top tray 8, spacer 9, screw 10, following pallet 11, base plate 16, magnetic device, hard disc 5, central shaft screw 3, back-up ring 4, central shaft 12, thrust disc 15 constitutes rotor, hard disc 5 is fixedlyed connected with the upper end of central shaft 12 by central shaft screw 3, be provided with back-up ring 4 between the upper end of hard disc 5 and central shaft 12, thrust disc 15 is nested with central shaft 12 and fixedlys connected.Fixedly connected with base plate 16 respectively in the lower end of two guideposts 6, the two ends of top tray 8, following pallet 11 are respectively equipped with linear bearing 7, the linear bearing 7 of the same end of top tray 8, following pallet 11 is nested with a guidepost 6 respectively, top tray 8, down the linear bearing 7 of the other end of pallet 11 is nested with another guidepost 6 respectively, linear bearing 7 flexible motion up and down on guidepost 6; Top tray 8, down pallet 11 is fixedly connected by screw 10, is with spacer 9 on the screw 10, and spacer 9 is in top tray 8, down between the pallet 11; The upper end at top tray 8 middle parts has central shaft hole, the bottom at top tray 8 middle parts is provided with the magnetic device chamber, central shaft hole on the top tray 8 communicates with the magnetic device chamber, the bottom at following pallet 11 middle parts has central shaft hole, the upper end at following pallet 11 middle parts is provided with the magnetic device chamber, central shaft hole on the following pallet 11 communicates with the magnetic device chamber, the concentricity axis of central shaft hole of the central shaft hole of top tray 8 and following pallet 11, the upper end of central shaft 12, lower end pass the central shaft hole of top tray 8, the central shaft hole of following pallet 11 respectively; Magnetic device is between the magnetic device chamber of top tray 8, following pallet 11; Central shaft 12 lower ends are connected with electric machine main shaft by screw thread.The present invention adopts a high-speed electric expreess locomotive main shaft that revolving force is provided, and comes the function of analog hard disk high-speed electric expreess locomotive with this, and motor is fixed on the motor stand, and it is to realize by the frequency size of adjusting frequency converter that electric machine main shaft changes rotating speed.
As shown in Figure 1, described magnetic device comprises copper sheathing 1, permanent-magnetic clamp 2, stator 13, central shaft 12 is the step shape shaft, the step axle upper end of central shaft 12 is bonded with permanent-magnetic clamp 2, copper sheathing 1 is positioned at top tray 8 magnetic device chambeies and fixedlys connected with top tray 8, the groove of copper sheathing 1 is bonded with permanent-magnetic clamp 2, and the permanent-magnetic clamp 2 on the copper sheathing 1 is positioned at the top of the permanent-magnetic clamp 2 on the central shaft 12, and the position of the permanent-magnetic clamp 2 on the permanent-magnetic clamp 2 on the copper sheathing 1 and the central shaft 12 is corresponding; Stator 13 is positioned at the magnetic device chamber of following pallet 11 and fixedlys connected with following pallet 11, and stator 13 is positioned at the below of thrust disc 15, is provided with coil 14 in the stator 13.
Principle of work: because central shaft 12 is to be connected with electric machine main shaft by bottom thread, so central shaft 12 can not move up and down in the course of the work, only rotates.A pair of permanent-magnetic clamp on top tray and the central shaft is because the gap is very little, therefore can produce very strong magnetic attraction, because central shaft is fixed, top tray can produce downward pulling force, on, the linear bearing on following pallet both sides has good guidance quality, top tray can drive down pallet and move downward together, instantly behind the coil electricity in the pallet stator, coil can produce the thrust disc on the electromagnetic force suction central shaft, can make electromagnetic force produce the pulling force balance that downward pulling force and permanent-magnetic clamp make progress by control section, playing pallet can drive top tray like this moves upward together, when reaching equilibrium state, central shaft can be thrown off with pallet up and down, can think that central shaft is equivalent to suspended state, the starter motor main shaft drives the central shaft rotation, if control is desirable, central shaft can not have the friction rotation at a high speed, and central shaft drives the hard disc rotation, so just can do the experiment of rotor under the high speed rotating condition, remedy the defective that magnetically floating hard disk single-degree-of-freedom performance experiment table rotor can not rotate.
Example 2: full electromagnetic control type structure, as shown in Figure 2,
Magnetically floating hard disk single-degree-of-freedom multi-function experimental rig, it is by control section, the detection mechanical part is formed, control section is by displacement transducer, A/D, DSP (digital information processor), D/A and power amplifier constitute, detect mechanical part and comprise guidepost 6, linear bearing 7, top tray 8, spacer 9, screw 10, following pallet 11, base plate 16, magnetic device, hard disc 5, central shaft screw 3, back-up ring 4, central shaft 12, thrust disc 15 constitutes rotor, hard disc 5 is fixedlyed connected with the upper end of central shaft 12 by central shaft screw 3, be provided with back-up ring 4 between the upper end of hard disc 5 and central shaft 12, thrust disc 15 is nested with central shaft 12 and fixedlys connected.Fixedly connected with base plate 16 respectively in the lower end of two guideposts 6, the two ends of top tray 8, following pallet 11 are respectively equipped with linear bearing 7, the linear bearing 7 of the same end of top tray 8, following pallet 11 is nested with a guidepost 6 respectively, top tray 8, down the linear bearing 7 of the other end of pallet 11 is nested with another guidepost 6 respectively, linear bearing 7 flexible motion up and down on guidepost 6; Top tray 8, down pallet 11 is fixedly connected by screw 10, is with spacer 9 on the screw 10, and spacer 9 is in top tray 8, down between the pallet 11; The upper end at top tray 8 middle parts has central shaft hole, the bottom at top tray 8 middle parts is provided with the magnetic device chamber, central shaft hole on the top tray 8 communicates with the magnetic device chamber, the bottom at following pallet 11 middle parts has central shaft hole, the upper end at following pallet 11 middle parts is provided with the magnetic device chamber, central shaft hole on the following pallet 11 communicates with the magnetic device chamber, the concentricity axis of central shaft hole of the central shaft hole of top tray 8 and following pallet 11, the upper end of central shaft 12, lower end pass the central shaft hole of top tray 8, the central shaft hole of following pallet 11 respectively; Magnetic device is between the magnetic device chamber of top tray 8, following pallet 11; Central shaft 12 lower ends are connected with electric machine main shaft by screw thread.The present invention adopts a high-speed electric expreess locomotive main shaft that revolving force is provided, and comes the function of analog hard disk high-speed electric expreess locomotive with this, and motor is fixed on the motor stand, and it is to realize by the frequency size of adjusting frequency converter that electric machine main shaft changes rotating speed.
As shown in Figure 2, described magnetic device comprises stator 13, be respectively equipped with stator 13 in the magnetic device chamber of top tray 8, following pallet 11, the magnetic device chamber inner stator 13 of top tray 8 is positioned at the top of thrust disc 15, the magnetic device chamber inner stator 13 of following pallet 11 is positioned at the below of thrust disc 15, is provided with coil 14 in the stator 13.
Principle of work: all generate an electromagnetic field after the logical rated current of the coil in the stator up and down, electromagnetic field can produce pulling force to thrust disc, adjust the size of electromagnetic force by control section, when power-on and power-off magnetic force is suitable, top tray 8, following pallet 11 will be in suspended state, and central shaft just can drive the hard disc high speed rotating.
Example 3: full permanent magnetism control type structure, as shown in Figure 3,
Magnetically floating hard disk single-degree-of-freedom multi-function experimental rig, it is by control section, the detection mechanical part is formed, control section is by displacement transducer, A/D, DSP (digital information processor), D/A and power amplifier constitute, detect mechanical part and comprise guidepost 6, linear bearing 7, top tray 8, spacer 9, screw 10, following pallet 11, base plate 16, magnetic device, hard disc 5, central shaft screw 3, back-up ring 4, central shaft 12 constitutes rotor, hard disc 5 is fixedlyed connected with the upper end of central shaft 12 by central shaft screw 3, is provided with back-up ring 4 between the upper end of hard disc 5 and central shaft 12.Fixedly connected with base plate 16 respectively in the lower end of two guideposts 6, the two ends of top tray 8, following pallet 11 are respectively equipped with linear bearing 7, the linear bearing 7 of the same end of top tray 8, following pallet 11 is nested with a guidepost 6 respectively, top tray 8, down the linear bearing 7 of the other end of pallet 11 is nested with another guidepost 6 respectively, linear bearing 7 flexible motion up and down on guidepost 6; Top tray 8, down pallet 11 is fixedly connected by screw 10, is with spacer 9 on the screw 10, and spacer 9 is in top tray 8, down between the pallet 11; The upper end at top tray 8 middle parts has central shaft hole, the bottom at top tray 8 middle parts is provided with the magnetic device chamber, central shaft hole on the top tray 8 communicates with the magnetic device chamber, the bottom at following pallet 11 middle parts has central shaft hole, the upper end at following pallet 11 middle parts is provided with the magnetic device chamber, central shaft hole on the following pallet 11 communicates with the magnetic device chamber, the concentricity axis of central shaft hole of the central shaft hole of top tray 8 and following pallet 11, the upper end of central shaft 12, lower end pass the central shaft hole of top tray 8, the central shaft hole of following pallet 11 respectively; Magnetic device is between the magnetic device chamber of top tray 8, following pallet 11; Central shaft 12 lower ends are connected with electric machine main shaft by screw thread.The present invention adopts a high-speed electric expreess locomotive main shaft that revolving force is provided, and comes the function of analog hard disk high-speed electric expreess locomotive with this, and motor is fixed on the motor stand, and it is to realize by the frequency size of adjusting frequency converter that electric machine main shaft changes rotating speed.
As shown in Figure 3, described magnetic device comprises copper sheathing 1, permanent-magnetic clamp 2, and central shaft 12 is the step shape shaft, and the step axle upper and lower side of central shaft 12 is bonded with permanent-magnetic clamp 2 respectively, be respectively equipped with copper sheathing 1 in the magnetic device chamber of top tray 8, following pallet 11, the groove of copper sheathing 1 is bonded with permanent-magnetic clamp 2; Permanent-magnetic clamp 2 on the copper sheathing 1 in the magnetic device chamber of top tray 8 is positioned at the top of permanent-magnetic clamp 2 of the step axle upper end of central shaft 12, and the position of the permanent-magnetic clamp 2 on the permanent-magnetic clamp 2 on the copper sheathing 1 the magnetic device chamber of top tray 8 in and the step axle of central shaft 12 is corresponding; Permanent-magnetic clamp 2 on the copper sheathing 1 in the magnetic device chamber of following pallet 11 is positioned at the below of permanent-magnetic clamp 2 of the step axle lower end of central shaft 12, and the permanent-magnetic clamp 2 on the copper sheathing 1 in the magnetic device chamber of following pallet 11 is corresponding with the position of the permanent-magnetic clamp 2 of the step axle lower end of central shaft 12.
Gap between two pairs of permanent-magnetic clamps of control can make top tray 8, following pallet 11 reach suspended state, and central shaft just can drive the hard disc high speed rotating.
Claims (4)
1. magnetically floating hard disk single-degree-of-freedom multi-function experimental rig, relate to the detection mechanical part, it is characterized in that: detect mechanical part and comprise guidepost (6), linear bearing (7), top tray (8), spacer (9), screw (10), following pallet (11), base plate (16), magnetic device, fixedly connected with base plate (16) respectively in the lower end of two guideposts (6), top tray (8), the two ends of following pallet (11) are respectively equipped with linear bearing (7), top tray (8), the linear bearing (7) of the same end of following pallet (11) is nested with a guidepost (6) respectively, top tray (8), the linear bearing (7) of the other end of following pallet (11) is nested with another guidepost (6) respectively; Top tray (8), down pallet (11) is fixedly connected by screw (10), is with spacer (9) on the screw (10), and spacer (9) is positioned at top tray (8), down between the pallet (11); The upper end at top tray (8) middle part has central shaft hole, the bottom at top tray (8) middle part is provided with the magnetic device chamber, central shaft hole on the top tray (8) communicates with the magnetic device chamber, the bottom at following pallet (11) middle part has central shaft hole, the upper end at following pallet (11) middle part is provided with the magnetic device chamber, central shaft hole on the following pallet (11) communicates with the magnetic device chamber, the concentricity axis of central shaft hole of the central shaft hole of top tray (8) and following pallet (11), the upper end of central shaft (12), the lower end is passed the central shaft hole of top tray (8) respectively, the central shaft hole of following pallet (11); Hard disc (5) is fixedlyed connected with the upper end of central shaft (12), and magnetic device is positioned between the magnetic device chamber of top tray (8), following pallet (11); Central shaft (12) lower end is connected with electric machine main shaft by screw thread.
2. magnetically floating hard disk single-degree-of-freedom multi-function experimental rig according to claim 1, it is characterized in that described magnetic device comprises copper sheathing (1), permanent-magnetic clamp (2), stator (13), central shaft (12) is the step shape shaft, the step axle upper end of central shaft (12) is bonded with permanent-magnetic clamp (2), copper sheathing (1) is positioned at top tray (8) magnetic device chamber and fixedlys connected with top tray (8), the groove of copper sheathing (1) is bonded with permanent-magnetic clamp (2), permanent-magnetic clamp (2) on the copper sheathing (1) is positioned at the top of the permanent-magnetic clamp (2) on the central shaft (12), and the position of the permanent-magnetic clamp (2) on the permanent-magnetic clamp (2) on the copper sheathing (1) and the central shaft (12) is corresponding; Thrust disc (15) is nested with central shaft (12) and fixedlys connected, and stator (13) is positioned at the magnetic device chamber of following pallet (11) and fixedlys connected with following pallet (11), and stator (13) is positioned at the below of thrust disc (15), is provided with coil (14) in the stator (13).
3. magnetically floating hard disk single-degree-of-freedom multi-function experimental rig according to claim 1, it is characterized in that described magnetic device comprises stator (13), be respectively equipped with stator (13) in the magnetic device chamber of top tray (8), following pallet (11), thrust disc (15) is nested with central shaft (12) and fixedlys connected, the magnetic device chamber inner stator (13) of top tray (8) is positioned at the top of thrust disc (15), the magnetic device chamber inner stator (13) of following pallet (11) is positioned at the below of thrust disc (15), is provided with coil (14) in the stator (13).
4. magnetically floating hard disk single-degree-of-freedom multi-function experimental rig according to claim 1, it is characterized in that described magnetic device comprises copper sheathing (1), permanent-magnetic clamp (2), central shaft (12) is the step shape shaft, the step axle upper and lower side of central shaft (12) is bonded with permanent-magnetic clamp (2) respectively, be respectively equipped with copper sheathing (1) in the magnetic device chamber of top tray (8), following pallet (11), the groove of copper sheathing (1) is bonded with permanent-magnetic clamp (2); Permanent-magnetic clamp (2) on the copper sheathing (1) in the magnetic device chamber of top tray (8) is positioned at the top of permanent-magnetic clamp (2) of the step axle upper end of central shaft (12), and the position of the permanent-magnetic clamp (2) on the permanent-magnetic clamp (2) on the copper sheathing (1) the magnetic device chamber of top tray (8) in and the step axle of central shaft (12) is corresponding; Permanent-magnetic clamp (2) on the copper sheathing (1) in the magnetic device chamber of following pallet (11) is positioned at the below of permanent-magnetic clamp (2) of the step axle lower end of central shaft (12), and the permanent-magnetic clamp (2) on the copper sheathing (1) in the magnetic device chamber of following pallet (11) is corresponding with the position of the permanent-magnetic clamp (2) of the step axle lower end of central shaft (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB031185037A CN100392767C (en) | 2003-01-21 | 2003-01-21 | Magnetic suspension hard disc single free degree multi-function experiment platform |
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| CNB031185037A CN100392767C (en) | 2003-01-21 | 2003-01-21 | Magnetic suspension hard disc single free degree multi-function experiment platform |
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| CN1434459A CN1434459A (en) | 2003-08-06 |
| CN100392767C true CN100392767C (en) | 2008-06-04 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414831C (en) * | 2004-06-10 | 2008-08-27 | 武汉理工大学 | DPS based intellectual high speed magnetic suspension control and digital power amplifying device |
| CN100511959C (en) * | 2004-06-10 | 2009-07-08 | 武汉理工大学 | DPS based intellectual high speed magnetic suspension control and analog power amplifying device |
| CN1300926C (en) * | 2005-07-21 | 2007-02-14 | 北京航空航天大学 | High-speed magnetic levitation flywheel stabilization control system |
| CN101451856B (en) * | 2008-12-26 | 2012-10-03 | 中国船舶重工集团公司第七0七研究所 | Active magnetic suspension axial performance tester |
| CN103066894B (en) * | 2012-12-12 | 2015-05-20 | 清华大学 | Six degrees of freedom magnetic levitation workpiece table |
| CN103064038B (en) * | 2013-01-03 | 2015-04-08 | 武汉理工大学 | Unidirection mixing magnetic levitation testing device |
| CN106640668A (en) * | 2016-11-09 | 2017-05-10 | 中国石油大学(华东) | Magnetic suspension water ring conveying pump |
| CN108535647B (en) * | 2018-03-28 | 2023-12-05 | 华南理工大学 | Simple experimental platform and method for testing performance of four-degree-of-freedom magnetic levitation motor |
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| FR2472815A1 (en) * | 1979-12-28 | 1981-07-03 | Sopelem | Stabilising mechanism for optical sighting system - includes magnetic damping minimising oscillation of mirrors in two perpendicular directions |
| DE4110788A1 (en) * | 1991-04-04 | 1992-10-15 | Forschungszentrum Juelich Gmbh | Permanent magnetic support for inertial mass held contactless by stator - involves permanent magnet bearings in at least three force transmission points supporting three rotary and two translatory degrees of movement |
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