CN104966446B - A kind of physical multifunctional experimental provision - Google Patents
A kind of physical multifunctional experimental provision Download PDFInfo
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- CN104966446B CN104966446B CN201510460781.7A CN201510460781A CN104966446B CN 104966446 B CN104966446 B CN 104966446B CN 201510460781 A CN201510460781 A CN 201510460781A CN 104966446 B CN104966446 B CN 104966446B
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- 238000005381 potential energy Methods 0.000 claims abstract description 54
- 229910000828 alnico Inorganic materials 0.000 claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 40
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 21
- 239000004020 conductor Substances 0.000 abstract description 7
- 238000002474 experimental method Methods 0.000 description 23
- 230000005611 electricity Effects 0.000 description 13
- 230000005484 gravity Effects 0.000 description 8
- 230000001133 acceleration Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 230000005389 magnetism Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The present invention relates to a kind of physical multifunctional experimental provision, including moving object, casing, electromagnet, device of solar generating, alnico magnets, the moving object includes parabolic, potential energy thing, the tank floor is set to square structure, the casing is provided with case lid, the case lid upper surface is provided with show stand, parabolic electromagnet locating slot, potential energy thing electromagnet locating slot, the case lid lower surface and parabolic electromagnet locating slot, the corresponding position of potential energy thing electromagnet locating slot is provided with parabolic locating slot, potential energy thing locating slot, the tank floor is provided with spring assembly one, spring assembly two, backboard, its advantage is：Energy-conserving and environment-protective, it can intuitively show and be changed between gravitional force and kinetic energy, kinetic energy and elastic force potential energy, the direction in the magnetic field of displaying influence electromagnet and the factor of intensity, show electromagnet Distribution of Magnetic Field situation and under magnetic fields electric conductor movement locus difference, and data reference can be provided, be conducive to student's rational learning.
Description
Technical field
The present invention relates to physical field, and in particular to a kind of physical multifunctional experimental provision.
Background technology
Physics Learning is related to mechanics, electromagnetism, and wherein mechanics mainly has gravity, elastic force and corresponding gravitional force, bullet
Conversion between power potential energy, also gravitional force, elastic force potential energy and mechanical energy, and in electromagnetism it is more important be electric magnetisation,
Magnetic life electricity, what magnetic direction, magnetic field power are influenceed by during electric magnetisation, are the priority and difficulty of study, especially conductor
, can not be accurate in the case of running into gravitional force, elastic force potential energy simultaneously in magnetic field, it is impossible to intuitively observe its difference
Calculate the conversion between each energy, student does not just allow readily understood, is difficult to grasp.
The content of the invention
To overcome the deficiency, it is an object of the invention to provide a kind of physical multifunctional experimental provision, single unit system knot
Structure is simple, energy-conserving and environment-protective, can intuitively show and be changed between gravitional force and kinetic energy, kinetic energy and elastic force potential energy, displaying influence electromagnetism
The direction in the magnetic field of iron and the factor of intensity, displaying electromagnet Distribution of Magnetic Field situation and under magnetic fields electric conductor motion
Track difference, and data reference can be provided.
The technical solution adopted for the present invention to solve the technical problems is：A kind of physical multifunctional experimental provision, including fortune
Animal, casing, electromagnet, device of solar generating, alnico magnets, the moving object include parabolic, potential energy thing, the parabolic
Soft iron rod is set to, one end of soft iron rod is provided with magnetism stick, and the potential energy thing is set to soft iron block, and the tank floor is set to square
Structure, the casing is provided with case lid, and the case lid upper surface is provided with show stand, parabolic electromagnet locating slot, potential energy thing electromagnetism
Iron locating slot, the show stand is clear glass or plastic material, and the show stand is provided with rotatable needle, show stand and case
It is provided between cap upper surface in cavity, cavity and is provided with iron filings, the case lid lower surface and parabolic electromagnet locating slot, potential energy thing electricity
The corresponding position of magnet locating slot be provided with parabolic locating slot, potential energy thing locating slot, the tank floor provided with spring assembly one,
Spring assembly two, backboard, the spring assembly one are located in the middle of the underface of potential energy thing locating slot, the backboard and are provided with magnetic drawing
Track is thrown in plate, the side upper end of backboard provided with flat, puts down throwing track and is located at below case lid parabolic locating slot, one on the casing
Side is provided with the uniform generating laser of a row, and another relative is provided with the equally distributed photodiode of a row, institute sideways
State generating laser and photodiode is corresponded, described four side exterior bottoms of casing, which are provided with, can accommodate alnico magnets
Alnico magnets locating slot；
The generating laser and photodiode are connected by signal line with controller respectively, when being provided with controller
Clock chip, signal processor, data memory module, power module, controller are provided with display, controller switches；
The device of solar generating includes being provided with base and the solar panel being located on base, the base
Battery, conversion control circuit, charging control circuit, output control circuit, the base connect provided with positive pole connector, negative pole
Interface, power switch；
The electromagnet is positioned in parabolic electromagnet locating slot or potential energy thing electromagnet locating slot, the electromagnet difference
Loop is connected to form by the positive pole connector of wire and device of solar generating, negative pole connector.
Further, the alnico magnets are provided with two pieces.
Further, the electromagnet is easy to displaying coil turn strong to magnetic field at least provided with two kinds of different coil turns
The influence of degree.
Further, the backboard may move in casing, can be needed to be moved to correct position according to experiment.
Further, the spring assembly one includes spring one and is located at the pallet one of the one end of spring one, the spring one
Perpendicular to tank floor.
Further, the spring assembly two includes spring two, pallet two, support bar, angle scale, and the center of circle of angle scale passes through
Fastening bolt is connected with one end of support bar, and the other end of the support bar is provided with spring two, the center of support bar and spring two
Line point-blank, is provided with fixed electromagnet in the support bar, the other end of the spring two is provided with pallet two, pallet two
Semi-cylindrical shaped is set to, the interior diameter of semicircular cylinder and the diameter of parabolic match, parabolic drops when preventing from tilting, the Motionless electromagnetic
Iron two ends are provided with lead-out wire.
Further, the solar panel is connected by conversion control circuit, charging control circuit with battery, electric power storage
Pond is connected by output circuit with positive pole connector, negative pole connector, and the power switch is located at output circuit and is connected with negative pole
Between mouth or positive pole connector, the conversion control circuit is provided with voltage-regulator diode, and charging control circuit is provided with anti-recoil
Diode, additives for overcharge protection circuit, output circuit are provided with anti-short-circuit protection circuit, over-discharge protection circuit.
Further, the loop between the electromagnet and device of solar generating is provided with variable resistor, can pass through regulation
Variable resistor, thus between electromagnet and device of solar generating loop electric current, the magnetic field intensity of electromagnet changes therewith.
Further, when case lid is fastened on casing, the spring assembly one, spring assembly two, generating laser, photoelectricity
Diode and parabolic electromagnet locating slot, potential energy thing electromagnet locating slot center line at grade.
The invention has the advantages that：It is simple in construction, electric energy is provided using solar energy, increases the interest of experiment,
Iron filings are enclosed in cavity by show stand, are prevented from raising outside, are polluted environment, global design energy-conserving and environment-protective；Gravitational potential can intuitively be shown
It can be changed between kinetic energy, kinetic energy and elastic force potential energy, the direction in the magnetic field of displaying influence electromagnet and the factor of intensity, displaying electricity
Magnetic field of magnets distribution situation and under magnetic fields electric conductor movement locus difference, and can provide data reference, will be directly perceived
Experimental phenomena connected with specific numerical value, be conducive to student's rational learning；Suction of the electromagnet to parabolic is utilized in experiment
Gravitation, after cutting off the electricity supply, electromagnet magnetic force disappears, and parabolic energy free-falling will not be influenceed by other active forces, it is ensured that every
Accuracy, the repeatability of individual experiment are interference-free.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view of case lid of the present invention.
In figure, 1 casing, 2 case lids, 21 parabolic electromagnet locating slots, 211 parabolic locating slots, 22 show stands, 221 is rotatable
Needle, 23 iron filings, 24 potential energy thing electromagnet locating slots, 241 potential energy thing locating slots, 3 backboards, 31 flat throwing tracks, 32 magnetic drawings,
4 generating lasers, 5 spring assemblies two, 51 support bars, 52 fastening bolts, 53 angle scales, 54 springs two, 55 pallets two, 56 draw
Line, 6 spring assemblies one, 61 springs one, 62 pallets one, 7 photodiodes, 81 parabolics, 82 potential energy things, 9 electromagnet, 10 can power transformation
Resistance, 11 device of solar generating, 111 solar panels, 112 bases, 113 power switches, 114 negative pole connectors, 115 positive poles
Connector, 12 controllers, 13 alnico magnets locating slots, 14 alnico magnets.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.
A kind of physical multifunctional experimental provision according to Fig. 1, Fig. 2, including moving object, casing 1, electromagnet 9, the sun
Energy TRT 11, alnico magnets 14, the moving object include parabolic 81, potential energy thing 82, and the parabolic 81 is set to soft iron rod,
One end of soft iron rod is provided with magnetism stick, and the potential energy thing 82 is set to soft iron block, and the bottom surface of casing 1 is set to square structure, institute
Casing 1 is stated provided with case lid 2, the upper surface of case lid 2 is provided with show stand 22, parabolic electromagnet locating slot 21, potential energy thing electromagnetism
Iron locating slot 24, the show stand 22 is clear glass or plastic material, and the show stand 22 is provided with rotatable needle 221,
It is provided between show stand 22 and the upper surface of case lid 2 in cavity, cavity and is provided with iron filings 23, the lower surface of case lid 2 and parabolic electromagnetism
Iron locating slot 21, the corresponding position of potential energy thing electromagnet locating slot 24 are provided with parabolic locating slot 211, potential energy thing locating slot 241, institute
The bottom surface of casing 1 is stated provided with spring assembly 1, spring assembly 25, backboard 3, the spring assembly 1 is located at the positioning of potential energy thing
Magnetic drawing 32 is provided with the middle of the underface of groove 241, the backboard 3, the side upper end of backboard 3 throws track provided with flat, puts down and throw rail
Road is located at below the parabolic locating slot 211 of case lid 2, and a side is provided with the equally distributed Laser emission of a row on the casing 1
Device 4, another relative is provided with the equally distributed photodiode 7 of a row, the generating laser 4 and photodiode sideways
7 correspond, and described 1 four side exterior bottoms of casing, which are provided with, can accommodate the alnico magnets locating slot of alnico magnets 14
13；
The generating laser 4 and photodiode are connected by signal line with controller 12 respectively, in controller 12
Provided with clock chip, signal processor, data memory module, data power module, controller 12 is provided with display, controller
Switch；
The device of solar generating 11 includes base 112 and the solar panel 111 being located on base 112, institute
State to be provided with base 112 on battery, conversion control circuit, charging control circuit, output control circuit, the base 112 and set
There are positive pole connector 115, negative pole connector 114, power switch 113；
The electromagnet 9 can be vertically placed in parabolic electromagnet locating slot 21 or potential energy thing electromagnet locating slot 24, institute
Electromagnet 9 is stated to be connected to form by positive pole connector 115, the negative pole connector 114 of wire and device of solar generating 11 respectively
Loop.
Further, the alnico magnets 14 are provided with two pieces.
Further, the electromagnet 9 is easy to displaying coil turn strong to magnetic field at least provided with two kinds of different coil turns
The influence of degree.
Further, the backboard 3 may move in casing 1, can be needed to be moved to correct position according to experiment.
Further, the spring assembly 1 includes spring 1 and is located at the pallet 1 of the one end of spring 1, described
Spring 1 is perpendicular to the bottom surface of casing 1.
Further, the spring assembly 25 includes spring 2 54, pallet 2 55, support bar 51, angle scale 53, angle scale
53 center of circle is connected by fastening bolt 52 with one end of support bar 51, and the other end of the support bar 51 is provided with spring 2 54,
The center line of support bar 51 and spring 2 54 point-blank, is provided with fixed electromagnet, the spring in the support bar 51
2 54 other end is provided with pallet 2 55, and pallet 2 55 is set to semi-cylindrical shaped, the interior diameter of semicircular cylinder and the diameter phase of parabolic 81
Matching, parabolic 81 drops when preventing from tilting, and the fixed electromagnet two ends are provided with lead-out wire 56.
Further, the solar panel 111 is connected by conversion control circuit, charging control circuit with battery,
Battery is connected by output circuit with positive pole connector 115, negative pole connector 114, and the power switch 113 is located at output electricity
Between road and negative pole connector 114 or positive pole connector 115, the conversion control circuit is provided with voltage-regulator diode, charging
Circuit is controlled to be provided with anti-recoil diode, additives for overcharge protection circuit, output circuit is protected provided with anti-short-circuit protection circuit, overdischarge
Protection circuit.
Further, the loop between the electromagnet and device of solar generating 11 is provided with variable resistor 10, can pass through
Adjust variable resistor 10, thus between electromagnet and device of solar generating 11 loop electric current, the magnetic field intensity of electromagnet 9 with
Change.
Further, when case lid 2 is fastened on casing 1, the spring assembly 1, spring assembly 25, generating laser
4th, photodiode 7 and parabolic electromagnet locating slot 21, potential energy thing electromagnet locating slot 24 center line at grade.
Device of solar generating 11 is placed in the sun, allows solar panel 111 towards sunlight, is generated electricity, is led to
Conversion control circuit, charging control circuit are crossed, it is safe to be charged to battery, in case being used during experiment.
Distribution of Magnetic Field situation around experiment one, the electric magnetisation of displaying, magnetic direction and electromagnet 9：By solar power generation
Device 11 is connected with variable resistor 10, electromagnet 9, and electromagnet 9 is placed in parallel on show stand 22；Turn on the power switch 113,
The direction of rotatable needle 221 is observed, the polarity of electromagnet 9 is judged；Power switch 113 is then turned off, the two ends of electromagnet 9 are changed
Positive pole connector 115, the negative pole connector 114 of connection, observe the direction of rotatable needle 221, the pole of electromagnet 9 are judged again
Property；Ordered arrangement can be formed according to the direction in magnetic field and intensity by gently vibrating the iron filings 23 in show stand 22, show stand 22, intuitively
The Distribution of Magnetic Field situation illustrated around electric magnetisation, magnetic direction and electromagnet 9, be easy to student to understand, and can be to
Raw explanation Ampere's law, to judge the relation between the polarity of electromagnet 9 that is powered and the sense of current.
Experiment two, the factor of displaying influence magnetic field intensity, by device of solar generating 11 and variable resistor 10, electromagnet 9
It is connected：Electromagnet 9 is placed in potential energy thing electromagnet locating slot 24 vertically, potential energy thing 82 is placed on to the support of spring assembly 1
In disk, 113 are turned on the power switch, the slide plate of variable resistor 10 is slided, the situation of change of spring 1 is observed, from controller 12
The particular location of spring 1 can be read on display screen, influence of the curent change to magnetic field intensity is judged with this；Holding can power transformation
Hinder that 10 slide plate positions are constant, change the electromagnet 9 of different coil turns, observe the situation of change of spring.
Electromagnet 9 is placed on potential energy thing electromagnet by experiment three, displaying potential energy with kinetic energy, kinetic energy and the conversion of energy of elastic force gesture
In locating slot 24：Turn on the power and be powered, potential energy thing 82 is placed in potential energy thing locating slot 241, case lid 2 is fastened on case
On body 1；Cut off the electricity supply switch 113, the magnetic field of electromagnet 9 disappears, potential energy thing 82 is accelerated under gravity, gravitional force
It is converted into kinetic energy；When potential energy thing 82 touches pallet 1, spring 1 compresses, and produces elastic force, elastic force and gravity direction phase
Instead, acceleration is reduced, and part kinetic energy is changed into elastic force potential energy；When elastic force is equal to gravity, this brief acceleration is zero；But speed is also
Deposit, and the downward compression spring 1 in direction, elastic force is more than gravity, and when spring 1 is compressed to minimum point, speed is zero,
Kinetic energy is completely converted into elastic force potential energy；Under elastic force effect, potential energy thing 82 obtains upward acceleration, and velocity attitude starts to switch to
Upwards, and by elastic force potential energy kinetic energy is switched to；When elastic force is equal to gravity, this brief acceleration is zero；But speed is also deposited, and just
To upward, elastic force is less than gravity, and acceleration starts lower, and when spring 1 restores to the original state, elastic force potential energy is completely converted into dynamic
Energy；Potential energy thing is continued up, and reaches high point, and kinetic energy is converted to potential energy, continues above-mentioned motion process.
Experiment four, shows level throw motion：Electromagnet 9 is placed in parabolic electromagnet locating slot 21 vertically, turned on the power
It is powered, parabolic 81 is placed in parabolic locating slot 211, by one end with magnetism stick towards backboard 3, case lid 2 is detained
Close on casing 1；Cut off the electricity supply switch 113, the magnetic field of electromagnet 9 disappears, magnetic field disappears to the attraction of parabolic 81, the edge of parabolic 81
Flat track 31 of throwing is rolled down, and does level throw motion, magnetic drawing 32 records horizontal projectile motion trajectory.
Experiment five, level throw motion of the conductor in magnetic field during without loop：Alnico magnets 14 are placed on corresponding
In alnico magnets locating slot 13, electromagnet 9 is placed in parabolic electromagnet locating slot 21,113 progress are turned on the power switch
It is powered, parabolic 81 is placed in parabolic locating slot 211, by one end with magnetism stick towards backboard 3, case lid 2 be fastened on
On casing 1；Cut off the electricity supply switch 113, the magnetic field of electromagnet 9 disappears, magnetic field disappears to the attraction of parabolic, parabolic 81 is along flat throwing rail
Road 31 is rolled down, and does level throw motion, and magnetic drawing 32 records horizontal projectile motion trajectory；The polarity of alnico magnets 14 is adjusted, again
Tested；Adjust alnico magnets 14 to arrive in two other corresponding alnico magnets locating slot 13, tested again.
Experiment six, level throw motion of the conductor in magnetic field when having loop：By alnico magnets 14 be placed on it is corresponding forever
In long property magnet locating slot 13, electromagnet 9 is placed in parabolic electromagnet locating slot 21, turns on the power and is powered, with band
The wire for having insulation sleeve connects the two ends of parabolic 81, forms loop, wire is positioned over outside magnetic field, then parabolic 81 is placed on
In parabolic locating slot 211, by one end with magnetism stick towards backboard 3, case lid 2 is fastened on casing 1；Cut off the electricity supply switch
113, the magnetic field of electromagnet 9 is disappeared, and magnetic field disappears to the attraction of parabolic 81, and parabolic 81 is rolled down along flat throwing track 31, does flat throwing fortune
Dynamic, magnetic drawing 32 records horizontal projectile motion trajectory；The polarity of alnico magnets 14 is adjusted, is tested again；Adjustment is permanent
Property magnet 14 in two other corresponding alnico magnets locating slot 13, tested again.
Experiment seven：The movement locus of inclined throw movements, rotational fastener bolt 52 adjusts the angle of support bar 51, by fixed electricity
The lead-out wire 56 of magnet is connected respectively to the positive pole connector 115 of device of solar generating 11, negative pole connector 114, opens electricity
Source switch 113, parabolic 81 is placed in the pallet 2 55 of spring assembly 25, by one end with magnetism stick towards backboard 3,
Because electromagnet 9 produces attraction to parabolic, spring 2 54 produces compression, forms elastic force, elastic force is with attracting dynamic balance；It is disconnected
Switch power supply, attraction is disappeared, and now parabolic 81 is accelerated by elastic force and Action of Gravity Field, and elastic force ejects parabolic 81, elastic force
Potential energy is fully converted to kinetic energy, and parabolic 81 does inclined throw movements, and magnetic drawing 32 records the movement locus of inclined throw movements；Adjustment branch
The angle of strut 51, is tested again, observes the inclined throw movements of different angles, and why not same the movement locus of parabolic has.
Carry out experiment one, experiment two, experiment three, experiment four, experiment five, experiment six and experiment seven while, parabolic or
The laser that generating laser 4 is sent will be stopped when potential energy thing falls, the signal that photodiode 7 is received changes, signal
Processor is acquired to signal, and calculates by clock chip the current signal time difference of two neighboring photodiode 7,
Due to the spacing of two adjacent photodiodes 7 is identical and, it is known that then can as calculate experiment obtained by velocity amplitude
And acceleration magnitude, while making a concerted effort for kinetic energy and vertical direction can be calculated, intuitively experimental phenomena it will join with specific numerical value
System gets up, and is conducive to student's rational learning.
Four will be tested and five are tested and contrasted with the data tested six horizontal projectile motion trajectory and detected, it is possible to find had
When whetheing there is to form loop without magnetic fields, conductor, whether the track of level throw motion is identical.
Using electromagnet 9 and fixed electromagnet to the attraction of parabolic in experiment, after cutting off the electricity supply, the magnetic force of electromagnet 9 disappears
Lose, moving object will not be influenceed by other active forces, it is ensured that accuracy, the repeatability each tested are interference-free；And energy
The experiment of different condition is enough done using different environment, and is contrasted, student is easier to understand relation each other.
The present invention is not limited to the embodiment, and anyone should learn that the structure made under the enlightenment of the present invention becomes
Change, the technical schemes that are same or similar to the present invention are each fallen within protection scope of the present invention.
The technology of the invention not being described in detail, shape, construction part are known technology.
Claims (9)
1. a kind of physical multifunctional experimental provision, it is characterised in that：Including moving object, casing, electromagnet, solar power generation dress
Put, alnico magnets, the moving object includes parabolic, potential energy thing, and the parabolic is set to soft iron rod, and one end of soft iron rod is provided with magnetic
Property rod, the potential energy thing is set to soft iron block, and the tank floor is set to square structure, and the casing is provided with case lid, described
Case lid upper surface is provided with show stand, parabolic electromagnet locating slot, potential energy thing electromagnet locating slot, and the show stand is clear glass
Or plastic material, the show stand is provided with rotatable needle, provided with cavity between show stand and case lid upper surface, is set in cavity
There are an iron filings, the corresponding position of the case lid lower surface and parabolic electromagnet locating slot, potential energy thing electromagnet locating slot is provided with parabolic
Locating slot, potential energy thing locating slot, the tank floor are provided with spring assembly one, spring assembly two, backboard, the spring assembly
One is located in the middle of the underface of potential energy thing locating slot, the backboard provided with magnetic drawing, and rail is thrown in the side upper end of backboard provided with flat
Road, puts down and throws track below case lid parabolic locating slot, and a side is provided with the uniform Laser emission of a row on the casing
Device, another relative is provided with the equally distributed photodiode of a row, the generating laser and photodiode one sideways
One correspondence, described four side exterior bottoms of casing, which are provided with, can accommodate the alnico magnets locating slot of alnico magnets；
The generating laser and photodiode are connected by signal line with controller respectively, and clock core is provided with controller
Piece, signal processor, data memory module, power module, controller are provided with display, controller switches；
The device of solar generating includes being provided with electric power storage in base and the solar panel being located on base, the base
Pond, conversion control circuit, charging control circuit, output control circuit, the base are connected provided with positive pole connector, negative pole
Mouth, power switch；
The electromagnet is positioned in parabolic electromagnet locating slot or potential energy thing electromagnet locating slot, and the electromagnet passes through respectively
Positive pole connector, the negative pole connector of wire and device of solar generating are connected to form loop.
2. a kind of physical multifunctional experimental provision according to claim 1, it is characterised in that：The alnico magnets are provided with
Two pieces.
3. a kind of physical multifunctional experimental provision according to claim 1, it is characterised in that：The electromagnet at least provided with
Two kinds of different coil turns.
4. a kind of physical multifunctional experimental provision according to claim 1, it is characterised in that：The backboard can in casing
It is mobile.
5. a kind of physical multifunctional experimental provision according to claim 1, it is characterised in that：The spring assembly one includes
Spring one and the pallet one for being located at the one end of spring one, the spring one is perpendicular to tank floor.
6. a kind of physical multifunctional experimental provision according to claim 1, it is characterised in that：The spring assembly two includes
Spring two, pallet two, support bar, angle scale, the center of circle of angle scale are connected by fastening bolt with one end of support bar, the branch
The other end of strut is provided with spring two, and the center line of support bar and spring two point-blank, in the support bar is provided with solid
Determine electromagnet, the other end of the spring two is provided with pallet two, and pallet two is set to semi-cylindrical shaped, the interior diameter and parabolic of semicircular cylinder
Diameter match, the fixed electromagnet two ends be provided with lead-out wire.
7. a kind of physical multifunctional experimental provision according to claim 1, it is characterised in that：The solar panel leads to
Cross conversion control circuit, charging control circuit with battery to be connected, battery is connected by output circuit and positive pole connector, negative pole
Interface is connected, and the power switch is located between output circuit and negative pole connector or positive pole connector, the conversion and control
Circuit is provided with voltage-regulator diode, and charging control circuit is provided with anti-recoil diode, additives for overcharge protection circuit, output circuit and set
There are anti-short-circuit protection circuit, over-discharge protection circuit.
8. a kind of physical multifunctional experimental provision according to claim 1, it is characterised in that：The electromagnet and solar energy
Loop between TRT is provided with variable resistor.
9. a kind of physical multifunctional experimental provision according to claim 1, it is characterised in that：When case lid is fastened on casing
When, the spring assembly one, spring assembly two, generating laser, photodiode and parabolic electromagnet locating slot, potential energy thing
The center line of electromagnet locating slot is at grade.
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| CN106157757A (en) * | 2016-08-26 | 2016-11-23 | 侯明 | A kind of Novel physical laboratory table |
| CN107316504B (en) * | 2017-06-08 | 2019-11-01 | 泉州市象影机械科技有限公司 | Physics project dynamic analog device |
| CN109741667B (en) * | 2019-01-23 | 2021-01-12 | 鲁逸凡 | Magnetic field simulation device for physics experiments |
| CN110232850A (en) * | 2019-07-12 | 2019-09-13 | 杨淞元 | A kind of demonstration of parabolic and track record physics demonstration device |
| CN111540260B (en) * | 2020-04-30 | 2022-05-27 | 东莞市名贝电子科技有限公司 | New energy automobile battery duration comparison device |
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| CN2257616Y (en) * | 1995-11-17 | 1997-07-09 | 赵经珍 | Electromagnetic induction energy conversion indicator |
| KR20020070105A (en) * | 2002-02-22 | 2002-09-05 | 오성훈 | Apparatus for displaying the relation between potential energy and kinetic energy |
| CN202939872U (en) * | 2012-12-11 | 2013-05-15 | 师海满 | Mechanical energy and Newton first law exploration and demonstration instrument |
| CN103761909A (en) * | 2014-01-07 | 2014-04-30 | 蒋妍 | Trolley and sliding rail for physical experiment |
| CN203825897U (en) * | 2014-05-21 | 2014-09-10 | 辛思潜 | Demonstration apparatus for the conversion between kinetic energy and potential energy |
| CN204010439U (en) * | 2014-08-25 | 2014-12-10 | 董占江 | A kind of potential energy transforms the demonstration teaching aid of kinetic energy |
-
2015
- 2015-07-31 CN CN201510460781.7A patent/CN104966446B/en not_active Expired - Fee Related
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