CN201057574Y - Electromagnetic induction synthetic experimental device - Google Patents
Electromagnetic induction synthetic experimental device Download PDFInfo
- Publication number
- CN201057574Y CN201057574Y CNU2006201731679U CN200620173167U CN201057574Y CN 201057574 Y CN201057574 Y CN 201057574Y CN U2006201731679 U CNU2006201731679 U CN U2006201731679U CN 200620173167 U CN200620173167 U CN 200620173167U CN 201057574 Y CN201057574 Y CN 201057574Y
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- electromagnetic induction
- permanent magnet
- experimental device
- cylindrical permanent
- integration experimental
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Abstract
The utility model discloses an electromagnetic induction integrative experimental device which can gain and record all the information of electromagnetic induction process for the analysis and research of the people; a cylindrical permanent magnet (1) used in the device passes through an upright guide pipe (3) fixed on a special bracket (4) and freely falls to a magnet absorption pad (5); the two multi-tap induction coils (2) which is arranged outside the guide pipe and can move upwards and downwards send the change process of induction electromotive force produced by the cylindrical permanent magnet (1) passing through coils to the two channels of a digital storage oscillograph (6) for the display and storage. The device has the simple structure and the convenient operation, and realizes the measurement of gravity, magnetic force and other physical quantities while quantizedly researching Faraday law of electromagnetic induction and Lenz's law.
Description
Technical field
The utility model relates to a kind of electromagnetic induction experiment device, the especially electromagnetic induction integration experimental device of being made up of magnet, coil.
Background technology
Electromagnetic induction phenomenon is one of discovery the most great in the electromagnetics, and it has disclosed the importance that electricity and magnetic connect each other and transforms, and its discovery is on science and technically all have an epoch making significance.Faraday was through the meticulous experimental study in 10 years, and found electromagnetic induction phenomenon for the first time in 1831, and summed up Faraday's electromagnetic induction law: the size of induction electromotive force is directly proportional with the rate of change of the magnetic flux that passes the loop in the conductor circuit.1834, Lenz proposed to judge the method for inductive current direction: faradic direction in the closed-loop path, and always make the magnetic field that it excited stop the variation that causes faradic magnetic flux, this conclusion is called Lenz law.How to adopt method easily and simple device to obtain and the full detail of record electromagnetic induction process for people's analysis and research, be the target that the scientific worker explores and pursues always.
The patent search system that utilizes Patent Office of State Intellectual Property Office of the People's Republic of China to be provided is retrieved such invention comprehensively, and the document that patents is as follows:
1. (publication number: CN2033530 is day openly: 1989.03.01) for the electromagnetic induction experiment device, this utility model is the original manual cutting magnetic line of using, change over the action of gravity cutting magnetic line, and form closed circuit, permanent magnet is made into electromagnet with two-orbit, roller and ammeter.This device can only be seen the swing of meter pointer, the quantitative relationship between each can't the verifying electromagnetic induction related physical quantity.
2. (publication number: CN2535877 is day openly: 2003.02.12) for a novel electromagnetic induction experiment utensil, it mainly comprises one on a support that links to each other with the motor rotating rosette that links to each other with described support, also have a swinging mounting that links to each other with described support, upper and lower magnet is installed on described swinging mounting.What this utility model was verified is the electromagnetic damping effect.
3. (open day of publication number: CN2686011: 2005.03.16), this utility model is made of U type magnet, coil, support, base plate, reometer the electromagnetic induction experiment device.Traversing carriage, coil cutting magnetic line, reometer shows electric current.Still can't accurately measure the quantitative relationship between the electromagnetic induction phenomenon.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of electromagnetic induction integration experimental device that can obtain and write down the full detail of electromagnetic induction process for people's analysis and research.
The technical scheme that its technical matters that solves the utility model adopts is:
Cylindrical permanent magnet under action of gravity, pass be fixed on the special stand and upright conduit free-falling to the magnet absorption layer; Be fixed on the outer tapped inductor more than two of conduit cylindrical permanent magnet is passed to two passages of digital storage oscilloscope for its demonstration and storage through whole change procedures of the out-of-date induction electromotive force that produces.
The employed special stand of the utility model is a hollow structure, can guarantee that cylindrical permanent magnet passes pedestal and falls to ground; Three foundation bolts are used to regulate the vertical of conduit; The cover tube outside of A/C adopts welding method to install two tight loops additional, is provided with holding screw and cylindrical rubber pad above the tight loop.
The employed many tapped inductors of the utility model have adopted single enameled wire to twine in the wire casing of skeleton and are equating the winding method of number of turn place tap, each tap by the Wire channel in building on the skeleton around below patching panel, being welded on the probe.Upper surface spraying or the printed coil symbol and the numeral of patching panel, the method that adopts melt glued or screw to fix with skeleton is integrated.In order to spur many tapped inductors up and down, skeleton also is furnished with cylindrical rubber pad and friction force adjusting screw.
The beneficial effects of the utility model are: simple in structure, easy to operate, can in quantitative research Faraday's electromagnetic induction law and Lenz law, realize measurement to physical quantitys such as gravity, magnetic force.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the system architecture synoptic diagram of the utility model electromagnetic induction integration experimental device;
Fig. 2 is the structural representation of the utility model electromagnetic induction integration experimental device special stand;
Fig. 3 is many tapped inductors of the utility model electromagnetic induction integration experimental device structural representation;
Fig. 4 is many tapped inductors skeleton synoptic diagram shown in Figure 3;
Fig. 5 is many tapped inductors patching panel synoptic diagram shown in Figure 3.
Embodiment
In electromagnetic induction integration experimental device shown in Figure 1, cylindrical permanent magnet 1 under action of gravity, pass be fixed on the special stand 4 and upright conduit 3 free-fallings to magnet absorption layer 5.Be arranged on conduit 3 outer tapped inductors 2 more than two cylindrical permanent magnet 1 is passed to two passages of digital storage oscilloscope 6 for its demonstration and storage through whole change procedures of the out-of-date induction electromotive force that produces.Conduit 3 is selected glass tube, copper pipe, aluminum pipe or stainless-steel tube for use according to the difference of experiment content, and the external diameter of conduit 3 is 15 millimeters, and internal diameter is 12 millimeters, and length is 1-1.5 rice, is convenient to people's operation of differing heights.The diameter of cylindrical permanent magnet 1 is 10 millimeters, and length is the 10-20 millimeter, and oversize meeting makes the positive and negative alternately place of induction electromotive force produce long-time zero-signal.The magnet absorption layer 5 that special stand 4 is placed below is bonded by rubber and iron plate, and its effect is to make cylindrical permanent magnet 1 realize " soft landing ".
Fig. 2 is the structural representation of the utility model electromagnetic induction integration experimental device special stand.The employed special stand 4 of the utility model is hollow structures, can guarantee that cylindrical permanent magnet 1 passes pedestal 12 and falls to ground.Pedestal 12 adopts copper or the alumina based material cast forms, and sleeve pipe 7 adopts the material the same with pedestal 12, is convenient to weld.The internal diameter of sleeve pipe 7 is slightly larger than the external diameter of conduit 3, so that change conduit 3.Three foundation bolts 9 are used to regulate the vertical of conduit 3.Process two holes on sleeve pipe 7 in advance, its diameter makes two holes concentric greater than the screw hole of tight loop 8 behind the two parts suits, adopts the welding method combination.Be provided with holding screw 10 and cylindrical rubber pad 11 above the tight loop 8, damage the conduit 3 that inserts in order to avoid fastening pressure is excessive.
Fig. 3 is many tapped inductors of the utility model electromagnetic induction integration experimental device structural representation.The employed many tapped inductors 2 of the utility model have adopted single enameled wire 13 to twine in the wire casing 20 of skeleton 16 and have equated the winding method of number of turn place tap, experimental results show that every 10 circle tap effects better, both can on digital storage oscilloscope 6, obtain ideal waveform, and can not make total number of turns too much again.Wire casing 20 is narrow more, and enameled wire 13 is thin more, and measurement result is accurate more, but also high more to technological requirement, thus the width of wire casing 20 between the 1-2 millimeter, the diameter of enameled wire 13 is between the 0.1-0.2 millimeter, can guarantee that per 10 circles just are covered with one deck, are convenient to the tap in edge.Around being welded on below patching panel 15 on the probe 14, the method can protect superfine enameled wire 13 to be difficult for being broken in frequent use by the Wire channel in building on the skeleton 16 21 in each tap.Patching panel 15 is integrated with the method that skeleton 16 adopts hot melt adhesive 17 gummeds or screw to fix, and skeleton 16 has been reserved gummed groove 22, after hot melt adhesive 17 pours into gummed groove 22 and Wire channel in building 21, can guarantee that patching panel 15 is loosening.In order to move up and down many tapped inductors 2, skeleton 16 also has three screw holes, can be equipped with cylindrical rubber pad 19 and friction force adjusting screw 18 according to the demand of friction force.The utility model has adopted tapped inductor 2 more than two for the using method of this device clearly is described, all drops in the protection domain of the present utility model for the device that adopts single or multiple many tapped inductors 2.
Fig. 4 is many tapped inductors skeleton synoptic diagram shown in Figure 3.Skeleton 16 can adopt organic glass or plastics to form through machined into, and skeleton 16 internal diameters are slightly larger than the external diameter of conduit 3.It is 2 millimeters flat mouthful or semicircular opening chisel processing that Wire channel in building 21 on the skeleton 16 can adopt edge of a knife width.
Fig. 5 is many tapped inductors patching panel synoptic diagram shown in Figure 3.This patching panel 15 is made by copper-clad plate and is toroidal, and the independent conductive region that eight areas of its lower surface are bigger (seeing (a) figure) connects each tap of many tapped inductors 2 respectively, plays a part stationary probe 14 simultaneously.The upper surface spraying of patching panel 15 or printed coil symbol and numeral (seeing (b) figure).The terminal crocodile clip of digital storage oscilloscope 6 signal wires is clipped on the probe 14, so probe 14 will have certain rigidity and diameter, can adopt the contact pin in the finished product connector to substitute.
Claims (9)
1. electromagnetic induction integration experimental device, it comprises magnet and coil, it is characterized in that: described magnet is cylindrical permanent magnet (1), and described coil is many tapped inductors (2); Cylindrical permanent magnet (1) passes under action of gravity and is fixed on last and upright conduit (3) free-falling of special stand (4) to magnet absorption layer (5); Be arranged on the outer and tapped inductor more than two (2) that can move up and down of conduit cylindrical permanent magnet (1) is passed to two passages of digital storage oscilloscope (6) for its demonstration and storage through whole change procedures of the out-of-date induction electromotive force that produces.
2. according to the described electromagnetic induction integration experimental device of claim 1, it is characterized in that: described special stand (4) adopts hollow structure, makes cylindrical permanent magnet (1) can pass pedestal (12) and falls to ground; Three foundation bolts (9) are used to regulate the vertical of conduit (3); Sleeve pipe (7) outside of A/C (3) installs two tight loops (8) additional, is provided with holding screw (10) and cylindrical rubber pad (11) above the tight loop (8).
3. according to the described electromagnetic induction integration experimental device of claim 1, it is characterized in that: described many tapped inductors (2) are made up of skeleton (16), enameled wire (13), patching panel (15), probe (14), cylindrical rubber pad (19) and friction force adjusting screw (18).
4. according to the described electromagnetic induction integration experimental device of claim 1, it is characterized in that: the diameter of described cylindrical permanent magnet (1) is 10 millimeters, and length is the 10-20 millimeter.
5. according to the described electromagnetic induction integration experimental device of claim 1, it is characterized in that: the external diameter of described conduit (3) is 15 millimeters, and internal diameter is 12 millimeters, and length is 1-1.5 rice.
6. according to claim 1 or 3 described electromagnetic induction integration experimental devices, it is characterized in that: the width of the wire casing (20) of the skeleton (16) that described many tapped inductors (2) use is between the 1-2 millimeter.
7. according to claim 1 or 3 described electromagnetic induction integration experimental devices, it is characterized in that: the diameter of the enameled wire (13) that described many tapped inductors (2) use is between the 0.1-0.2 millimeter.
8. according to claim 1 or 3 described electromagnetic induction integration experimental devices, it is characterized in that: the interval number of turn between each tap of described many tapped inductors (2) is 10 circles.
9. according to claim 1 or 3 described electromagnetic induction integration experimental devices, it is characterized in that: the patching panel (15) that described many tapped inductors (2) use is a toroidal, upper surface spraying or printed coil symbol and numeral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201731679U CN201057574Y (en) | 2006-12-19 | 2006-12-19 | Electromagnetic induction synthetic experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201731679U CN201057574Y (en) | 2006-12-19 | 2006-12-19 | Electromagnetic induction synthetic experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057574Y true CN201057574Y (en) | 2008-05-07 |
Family
ID=39426414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201731679U Expired - Fee Related CN201057574Y (en) | 2006-12-19 | 2006-12-19 | Electromagnetic induction synthetic experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057574Y (en) |
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2006
- 2006-12-19 CN CNU2006201731679U patent/CN201057574Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |