CN203455989U - Magnetic suspension experiment apparatus - Google Patents
Magnetic suspension experiment apparatus Download PDFInfo
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- CN203455989U CN203455989U CN201320577821.2U CN201320577821U CN203455989U CN 203455989 U CN203455989 U CN 203455989U CN 201320577821 U CN201320577821 U CN 201320577821U CN 203455989 U CN203455989 U CN 203455989U
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- magnetic suspension
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Abstract
The utility model provides a magnetic suspension experiment apparatus. The first ends of a first electromagnet and a second electromagnet are both fixed to a fixed plate; the first electromagnet and the second electromagnet are arranged between a sensor component and the fixed plate; the sensor component and the fixed plate are relatively parallelly arranged; a control component is respectively in electric connection with the first electromagnet, the second electromagnet and the sensor component; a suspension member to be measured is provided with a first magnetic suspension part and a second magnetic suspension part; the first magnetic suspension part is corresponding with the second end of the first electromagnet; the second magnetic suspension part is corresponding with the second end of the second electromagnet. According to the technical scheme, the two electromagnets generate magnetic force to attract the suspension member to be measured, allowing the suspension member to be measured to overcome gravity and maintain a suspension state in space to complete a magnetic suspension experiment.
Description
Technical field
The utility model relates to scientific experiment device field, in particular to a kind of magnetic suspension experiment device.
Background technology
Magnetic levitation technology originates from Germany, and as far back as nineteen twenty-two Germany slip-stick artist Herman, Ken Peier has just proposed electromagnetic suspension principle.Along with electronic technology, control engineering, signal handling components, electromagnetic theory and the development of novel Electromagnetic Material and the progress of rotor dynamics, magnetic levitation technology has obtained significant progress.In recent years, magnetic levitation technology is widely used in a lot of fields, as magnetic suspension train, ACTIVE CONTROL magnetic suspension bearing, magnetic suspention balance, magnetic levitation small-scale transfer transfer device, magnetic levitation surveying instrument, magnetic levitation robot wrist, magnetic levitation tutoring system etc.
The existing research method of broad prospect of application ， China based on above magnetic levitation technology is mainly studied theoretically, carries out on this basis emulation experiment, for magnetic levitation technology provides theoretical foundation.But in existing scientific research institution and big-and-middle universities and colleges, lack the experimental provision for magnetic levitation technology, therefore cannot meet the requirement of magnetic suspension experiment.
Utility model content
In view of the above problems, the utility model proposes a kind of magnetic suspension experiment device that overcomes the problems referred to above or address the above problem at least in part.
The magnetic suspension experiment device that the utility model provides comprises: the first electromagnet of fixed head, sensor element, column and the second electromagnet, control assembly and tested buoyant element, wherein, the first end of the first electromagnet and described the second electromagnet is all fixed on fixed head, the first electromagnet and described the second electromagnet are arranged between described sensor element and fixed head, and sensor element and fixed head opposing parallel arrange; Control assembly is electrically connected to respectively with the first electromagnet, the second electromagnet and sensor element, for receiving feedback signals, and according to this feedback signal, regulate respectively the magnetic force of the first electromagnet and the second electromagnet, to keep tested buoyant element at space inner suspension; In tested buoyant element, be provided with the first magnetic suspension portion and the second magnetic suspension portion, the position of the first magnetic suspension portion is corresponding with the position of first electromagnet the second end, and the position of the second magnetic suspension portion is corresponding with the position of second electromagnet the second end.
Further, tested buoyant element comprises cylindrical body, and the first magnetic suspension portion and the second magnetic suspension portion comprise respectively a ferrimagnet annulus that is set in cylindrical body periphery.
Further, sensor element comprises the first eddy current sensor and the second eddy current sensor, wherein, the probe positions of the first eddy current sensor is corresponding to the position of the first magnetic suspension portion, and the probe positions of the second eddy current sensor is corresponding to the position of the second magnetic suspension portion.
Further, the first end of the first electromagnet is connected by square steel on fixed head with the first end of the second electromagnet.
Further, the magnetic suspension experiment device that the utility model provides also comprises base cabinet, and control assembly is arranged in base cabinet.
Further, base cabinet upper surface is provided with support, fixed head is fixed on base cabinet top by support, and sensor element is arranged on the upper surface of base cabinet, and the height of support is greater than the height of the length of electromagnet, sensor element, tested buoyant element diameter three sum.
Further, above-mentioned support comprises the many stay pipes that length is consistent, the electric wire that control assembly is connected with the first electromagnet, and control assembly passes from stay pipe with the electric wire that the second electromagnet is connected.
Further, on the side of base cabinet, be provided with adjusting knob, this adjusting knob is electrically connected to control assembly.
Further, base cabinet inside is also provided with power module, is provided with power interface on base cabinet, and power module is connected with external power source by power interface.
Further, the fixing a plurality of wheels in the bottom of base cabinet.
Application the technical solution of the utility model, use two electromagnet to produce magnetic force, attract tested buoyant element, thereby make tested buoyant element overcome gravity, in space, maintain suspended state, utilize the distance measure of sensor element as feedback, the magnetic force of electromagnet is carried out to FEEDBACK CONTROL, complete magnetic suspension experiment.Utilize control respectively at 2, tested buoyant element is suspended with the attitude of certain luffing angle, not only can complete the elevating control for tested buoyant element, can also carry out luffing angle control, complete the experiment of multiple suspension attitude.
In addition, by control assembly is arranged in to base cabinet, and whole device is erected on base cabinet, simplified the structure of magnetic suspension experiment device of the present utility model, and by the fixing a plurality of wheels in bottom of base cabinet, be suitable for testing under mobile situation, for the experiment under complex environment provides condition.
According to the detailed description to the utility model specific embodiment by reference to the accompanying drawings below, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present utility model more.
Accompanying drawing explanation
Hereinafter in exemplary and nonrestrictive mode, describe specific embodiments more of the present utility model in detail with reference to the accompanying drawings.In accompanying drawing, identical Reference numeral has indicated same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not draw in proportion.In accompanying drawing:
Fig. 1 is according to the structural drawing of the magnetic suspension experiment device of the utility model embodiment;
Fig. 2 is according to the schematic diagram of the tested buoyant element of the magnetic suspension experiment device of the utility model embodiment;
Fig. 3 is according to the schematic internal view of the sensor element of the magnetic suspension experiment device of the utility model embodiment;
Fig. 4 is according to the schematic perspective view of the magnetic suspension experiment device of the optimization of the utility model embodiment;
Fig. 5 is according to the front elevation of the magnetic suspension experiment device of the optimization of the utility model embodiment; And
Fig. 6 is according to the rear view of the magnetic suspension experiment device of the optimization of the utility model embodiment.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The utility model embodiment provides a kind of magnetic suspension experiment device, by two electromagnet, produce magnetic force, to guarantee that the buoyant element with certain length suspends in space, utilize the position of detecting tested buoyant element as feedback signal, by the magnetic force of regulating magnet, change the suspension attitude of tested buoyant element, to realize the experiment to magnetic levitation technology.
Fig. 1 is according to the structural drawing of the magnetic suspension experiment device of the utility model embodiment, wherein, this magnetic suspension experiment device comprises: the first electromagnet 31 of fixed head 11, sensor element 21, column and the second electromagnet 32, control assembly 41, tested buoyant element 51, wherein, the first electromagnet 31 is consistent with the length of the second electromagnet 32.Sensor element 21 and fixed head 11 opposing parallel settings, for measuring the suspension attitude of tested buoyant element 51 and being converted to feedback signal, the first end of the first electromagnet 31 and the second electromagnet 32 is all fixed on fixed head 11, and the first electromagnet 31 and the second electromagnet 32 are arranged between sensor element 21 and fixed head 11, the second end of the first electromagnet 31 and the second electromagnet 32 arranges downwards, control assembly 41 and the first electromagnet 31, the second electromagnet 32, sensor element 21 is electrically connected to respectively, for receiving feedback signals and regulate respectively the magnetic force of the first electromagnet 31 and the second electromagnet 32 according to this feedback signal, to keep tested buoyant element 51 at space inner suspension, in tested buoyant element 51, be provided with the first magnetic suspension portion 511 and the second magnetic suspension portion 512, while suspending experiment, the position of the first magnetic suspension portion 511 is corresponding with the position of the first electromagnet 31 second ends, and the position of the second magnetic suspension portion 512 is corresponding with the position of the second electromagnet 32 second ends.
Control assembly 41 can adopt various control pattern to control, the position signalling that sensor element 21 is measured is as the feedback signal that regulates magnetic force, by changing respectively the exciting current of the first electromagnet 31 and the second electromagnet 32, the electromagnetic force that regulates the first magnetic suspension portion 511 and the second magnetic suspension portion 512 to produce, the gravity that makes to overcome tested buoyant element 51 self suspends in space, the suspension attitude of being measured tested buoyant element 51 by sensor element 21, concrete control program as required contrived experiment scheme is tested.
The size of electromagnet magnetic force is directly related with the size of exciting current, in magnetic suspension experiment device of the present utility model without exciting current is measured, and directly utilize the position signalling of sensor element measurement as the feedback signal of magnetic force, avoided the error effect of current measurement to control result.
When the magnetic suspension experiment device of employing the present embodiment is tested, tested buoyant element 51 is suspended in the below of the first electromagnet 31 and the second electromagnet 32, when tested buoyant element 51 increases apart from the gap of electromagnet, now need to increase magnetic force, when tested buoyant element 51 reduces apart from the gap of electromagnet, now need to reduce magnetic force, the gap width of the measurement by sensor element 21 is as feedback like this, can realize the FEEDBACK CONTROL of magnetic force, thereby complete suspension experimentation.And utilize control respectively at 2, tested buoyant element 51 is suspended in space with certain luffing angle, thereby not only can complete tested buoyant element 51 and carry out lifting, can also change the luffing angle of tested buoyant element, in space, realize the effect of rotating, regulate 2 points simultaneously, can realize the lifting translation of along continuous straight runs and the function of rotating with respect to transverse axis.
Owing to being provided with the position magnetic suspension portion corresponding with electromagnet position in tested buoyant element 51, so tested buoyant element 51 need to have certain length, consider in addition the weight of parts, generally can choice for use tubulose, bar-shaped, list structure, square tube for example, triangle column tube, cylinder etc.Fig. 2 is according to the schematic diagram of the tested buoyant element 51 of the magnetic suspension experiment device of the utility model embodiment, as shown in the figure, the main body of tested buoyant element 51 is preferably used cylinder-like structure, the first magnetic suspension portion 511 and the second magnetic suspension portion 512 are respectively ferrimagnet annulus, assembling mode can be for multiple, for example directly be set in cylinder periphery, directly embed in the groove of cylinder correspondence position, or directly as a section of cylinder.Magnetic part is generally selected the color different from cylindrical shell, like this can also be as position mark.
Fig. 3 is that the measurement component in sensor element 21 can be selected various gap sensors according to the schematic internal view of the sensor element 21 of the magnetic suspension experiment device of the utility model embodiment, such as optical sensor, eddy current sensor, laser range sensor etc.Gap sensor is measured the distance of tested buoyant element 51 to first electromagnet 31 and the distance of tested buoyant element 51 to second electromagnet 32 by non-contacting mode, has directly reflected the suspension attitude of tested buoyant element 51 with top offset.
In the present embodiment, measurement component in sensor element 21 is preferably used eddy current sensor, specifically comprise the first eddy current sensor 211 and the second eddy current sensor 212, wherein, the first eddy current sensor 211 is for measuring the distance of the first magnetic suspension portion 511 to first eddy current sensors 211, the second eddy current sensor 212 is for measuring the distance of the second magnetic suspension portion 512 to second eddy current sensors 212, above the first eddy current sensor 211 and the second eddy current sensor 212 can centralized arrangement in a sensor element 21 shells 213, wherein, under the state of testing, the position of the position of the probe of the first eddy current sensor 211 and the second eddy current sensor 212 probes is corresponding with the first magnetic suspension portion 511 and the second magnetic suspension portion 512.When above eddy current sensor utilizes the distance between tested metal and probe to change, the flux value of probe coil also changes, the variation of flux value causes the variation of oscillating voltage amplitude, and this oscillating voltage with variable in distance changes into electric signal through detection, filtering, linear compensation, amplification normalization, finally complete mechanical clearance and convert electric signal to.According to the data of two vortex sensor measurings, can directly calculate the luffing angle of tested buoyant element 51 and apart from the suspension attitudes such as distance of electromagnet.And the antijamming capability of eddy current sensor is strong, compare with the general displacement transducer such as optical sensor, can not be subject to the interference of thermal source, light source, radio-frequency radiation, increased the reliability of experimental provision.
The first end of the first end of the first electromagnet 31 and the second electromagnet 32 can adopt the mode of screw to be directly fixed on fixed head 11, when testing, can guarantee that the magnetic polarity of the first electromagnet 31 is contrary with the magnetic polarity of the second electromagnet 32 by changing the direction of working current, can effectively improve the utilization factor of electromagnet magnetic flux, the maximum weight of the tested buoyant element 51 that raising can be carried, in order further to reduce leakage field, the first end of the first end of the first electromagnet 31 and the second electromagnet 32 is connected by square steel on fixed head 11, square steel provides flux path for magnetic field, greatly reduce leakage field.
In addition, the first magnetic suspension portion 511 and the second magnetic suspension portion 512 also can utilize ferromagnetic material to couple together in the inside of tested buoyant element 51, can improve the utilization factor in magnetic field for magnetic field provides path equally, further raise the efficiency.
Fixed head 11 can adopt the mode of suspension, bracing frame to be arranged in the position of certain altitude, the first electromagnet 31 and the second electromagnet 32 are vertically downward, sensor element 21 is arranged on the below of the first electromagnet 31 and the second electromagnet 32, and the space between sensor element 21 and electromagnet belongs to the Serpentine Gallery Pavilion of tested buoyant element 51.When testing, control assembly 41 provides exciting current to electromagnet, and sensor element 21 feeds back to control assembly 41 by the position measured value measuring.
For improving the integraty of device, be convenient to movement and the layout of experimental provision, can further optimize the present embodiment magnetic suspension experiment device, Fig. 4 is according to the schematic perspective view of the magnetic suspension experiment device of the optimization of the utility model embodiment, the magnetic suspension experiment device of this optimization also comprises base cabinet 61, in the drawings because control assembly 41 is arranged in base cabinet 61, do not illustrate, base cabinet 61 upper surfaces are provided with support 71, fixed head 11 is fixed on base cabinet 61 tops by support 71, sensor element 21 is arranged on the upper surface of base cabinet 61, the height of support 71 is greater than the length of electromagnet, the height of sensor element 21, tested buoyant element 51 diameter three sums.
With upper bracket 71, can be built by the many consistent stay pipes of length, the electric wire that control assembly 41 is connected with the first electromagnet 31, and control assembly 41 can pass with the electric wire that the second electromagnet 32 is connected from stay pipe.Fixed head 11 has been shown for square in Fig. 4, four stay pipes support respectively the situation of 11 4 corners of fixed head, in fact the shape of fixed head 11 can adopt arbitrary shape, and as circle, triangle, polygon etc., the quantity of stay pipe can arrange as required.
On the side of base cabinet 61, different man-machine interfaces and electric interfaces can be set respectively as required, Fig. 5 is according to the front elevation of the magnetic suspension experiment device of the optimization of the utility model embodiment, on a side of base cabinet 61, adjusting knob 611 is set, reometer 612, mode selection switch 613, voltage table 614, power supply indication 615, with upper-part, be electrically connected to the control assembly 41 of base cabinet 61 inside respectively, wherein, adjusting knob 611 is for receiving user's adjustment operation and transmitting control signal to control assembly 41, reometer 612 is used to indicate the size of the load current of power module, operating voltage table 614 is used to indicate the load voltage of power module, mode selection switch 613 is for receiving the selection of user to experiment model, whether power supply indication 615 is used to indicate this experimental provision and powers.
Above experiment model can comprise: manual mode, automatic mode, remote mode, by different patterns, to control assembly 41 outputs, control echo signal, and set the target suspension attitude of tested buoyant element 51.Wherein manual mode for according to user to the position signalling of the tested buoyant element 51 of the operation change of adjusting knob 611 to test, automatic mode for controlling according to the mode of presetting, the targeted attitude of tested buoyant element 51 that remote mode changes according to the outer remote control signal receiving.
Fig. 6 is according to the rear view of the magnetic suspension experiment device of the optimization of the utility model embodiment, as figure, on base cabinet 61, can also be provided with power interface and ventilating opening 620, the position of ventilating opening 620 can be arranged on rear portion or the both sides of casing neatly, for the heat of box house is discharged, prevent that circuit is overheated.Power module can be selected the power supply of alternating current-direct current input, is provided with DC power supply switch 621, direct supply interface 622 on base cabinet 61, and ac power switch 624, AC power interface 625, for introducing external power source.Signaling interface 626 can be selected aviation plug, for receiving outside remote signal.Fuse 623, for improving the reliability of power supply, prevents that large electric current from burning device.Each interface on base cabinet 61 and switch etc. can arrange flexibly according to the function of control assembly 41.
In addition can be in the bottom of whole experimental provision, namely a plurality of wheels are fixed in the bottom of base cabinet 61, improve the travelling performance of equipment.
Utilize the structure of this optimization, whole apparatus structure is succinct, it is convenient, quick to use.Utilize control respectively at 2, tested buoyant element 51 suspends with certain luffing angle.
In the instructions that provided herein, a large amount of details have been described.Yet, can understand, embodiment of the present utility model can not put into practice in the situation that there is no these details.In some instances, be not shown specifically known method, structure and technology, so that not fuzzy understanding of this description.And above-mentioned first, second use does not represent any order.The differentiation that can be like by these word explanations.
Similarly, be to be understood that, in order to simplify the disclosure and to help to understand one or more in each utility model aspect, in the above in the description of exemplary embodiment of the present utility model, each feature of the present utility model is grouped together into single embodiment, figure or sometimes in its description.Yet, the method for the disclosure should be construed to the following intention of reflection: the utility model required for protection requires than the more feature of feature of clearly recording in each claim.Or rather, as reflected in claims below, utility model aspect is to be less than all features of disclosed single embodiment above.Therefore, claims of following embodiment are incorporated to this embodiment thus clearly, and wherein each claim itself is as independent embodiment of the present utility model.
In addition, those skilled in the art can understand, although embodiment more described herein comprise some feature rather than further feature included in other embodiment, the combination of the feature of different embodiment means within scope of the present utility model and forms different embodiment.For example, in the following claims, the one of any of embodiment required for protection can be used with array mode arbitrarily.
So far, those skilled in the art will recognize that, although detailed, illustrate and described a plurality of exemplary embodiment of the present utility model herein, but, in the situation that not departing from the utility model spirit and scope, still can directly determine or derive many other modification or the modification that meets the utility model principle according to the disclosed content of the utility model.Therefore, scope of the present utility model should be understood and regard as and cover all these other modification or modifications.
Claims (10)
1. a magnetic suspension experiment device, this magnetic suspension experiment device comprises: first electromagnet (31) of fixed head (11), sensor element (21), column and the second electromagnet (32), control assembly (41), tested buoyant element (51), it is characterized in that
The first end of described the first electromagnet (31) and described the second electromagnet (32) is all fixed on described fixed head (11), described the first electromagnet (31) and described the second electromagnet (32) are arranged between described sensor element (21) and described fixed head (11)
Described sensor element (21) and described fixed head (11) opposing parallel setting;
Described control assembly (41) is electrically connected to respectively with described the first electromagnet (31), described the second electromagnet (32) and described sensor element (21);
In described tested buoyant element (51), be provided with the first magnetic suspension portion (511) and the second magnetic suspension portion (512), the position of described the first magnetic suspension portion (511) is corresponding with the position of described the first electromagnet (31) second ends, and the position of described the second magnetic suspension portion (512) is corresponding with the position of described the second electromagnet (32) second ends.
2. magnetic suspension experiment device according to claim 1, it is characterized in that, described tested buoyant element (51) comprises cylindrical body, and described the first magnetic suspension portion (511) and described the second magnetic suspension portion (512) comprise respectively a ferrimagnet annulus that is set in described cylindrical body periphery.
3. magnetic suspension experiment device according to claim 2, it is characterized in that, described sensor element (21) comprises the first eddy current sensor (211) and the second eddy current sensor (212), the probe positions of described the first eddy current sensor (211) is corresponding to the position of described the first magnetic suspension portion (511), and the probe positions of described the second eddy current sensor (212) is corresponding to the position of described the second magnetic suspension portion (512).
4. magnetic suspension experiment device according to claim 1, is characterized in that, the first end of the first end of described the first electromagnet (31) and described the second electromagnet (32) is above connected by square steel at described fixed head (11).
5. according to the magnetic suspension experiment device described in any one in claim 1 to 4, it is characterized in that, also comprise base cabinet (61), described control assembly (41) is arranged in described base cabinet (61).
6. magnetic suspension experiment device according to claim 5, it is characterized in that, described base cabinet (61) upper surface is provided with support (71), described fixed head (11) is fixed on described base cabinet (61) top by described support (71), described sensor element (21) is arranged on the upper surface of described base cabinet (61), and the height of described support (71) is greater than height, described tested buoyant element (51) the diameter three sum of the length of described electromagnet (31), described sensor element (21).
7. magnetic suspension experiment device according to claim 6, it is characterized in that, described support (71) comprises the many stay pipes that length is consistent, the electric wire that described control assembly (41) is connected with described the first electromagnet (31), and described control assembly (41) passes from described stay pipe with the electric wire that described the second electromagnet (32) is connected.
8. magnetic suspension experiment device according to claim 5, is characterized in that, is provided with adjusting knob (611) on the side of described base cabinet (61), and this adjusting knob (611) is electrically connected to described control assembly (41).
9. magnetic suspension experiment device according to claim 5, it is characterized in that, described base cabinet (61) inside is also provided with power module, and described base cabinet is provided with power interface on (61), and described power module is connected with external power source by described power interface.
10. magnetic suspension experiment device according to claim 5, is characterized in that, the fixing a plurality of wheels in bottom of described base cabinet (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577821.2U CN203455989U (en) | 2013-09-18 | 2013-09-18 | Magnetic suspension experiment apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577821.2U CN203455989U (en) | 2013-09-18 | 2013-09-18 | Magnetic suspension experiment apparatus |
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| CN203455989U true CN203455989U (en) | 2014-02-26 |
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| CN201320577821.2U Expired - Lifetime CN203455989U (en) | 2013-09-18 | 2013-09-18 | Magnetic suspension experiment apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659438A (en) * | 2022-05-20 | 2022-06-24 | 山东华东风机有限公司 | Detection device and detection method for differential displacement sensor |
-
2013
- 2013-09-18 CN CN201320577821.2U patent/CN203455989U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659438A (en) * | 2022-05-20 | 2022-06-24 | 山东华东风机有限公司 | Detection device and detection method for differential displacement sensor |
| CN114659438B (en) * | 2022-05-20 | 2022-08-05 | 山东华东风机有限公司 | Detection device and detection method for differential displacement sensor |
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