CN109036047A - Magnetic-type Quantitative demonstration apparatus about Ampere force - Google Patents
Magnetic-type Quantitative demonstration apparatus about Ampere force Download PDFInfo
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- CN109036047A CN109036047A CN201811033719.XA CN201811033719A CN109036047A CN 109036047 A CN109036047 A CN 109036047A CN 201811033719 A CN201811033719 A CN 201811033719A CN 109036047 A CN109036047 A CN 109036047A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/181—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for electric and magnetic fields; for voltages; for currents
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Abstract
The invention belongs to educate and demonstration equipment field, a kind of magnetic-type Quantitative demonstration apparatus about Ampere force is related to by it, including the modified line coil apparatus and U-shaped magnet that there is the magnetic type control panel for adjusting electric current, reset clearing, display Ampere force and the adjusted current values function of display, be loaded in the magnetic type control panel lower end；The magnetic type control panel lower end is equipped with tension sensor, and the tension sensor lower end installation has the attachment device of connection type transformer coil apparatus function, and the modified line coil apparatus includes: fixed frame and coil；The present invention can succinctly, intuitively pass through control variable, qualitatively verify the relationship between Ampere force and magnetic induction intensity, the length in magnetic field, electric current and conductor length；3. the relationship of left hand theorem Yu magnetic direction and current direction can be verified intuitively.
Description
Technical field
The invention belongs to educate with demonstration equipment field, a kind of magnetic-type Quantitative demonstration apparatus about Ampere force is related to by it.
Background technique
Student generally rests in the imagination level concept of Ampere force, seldom by experiment, undergoes and experiences in person.
Tradition demonstration equipment of the laboratory in relation to Ampere force, i.e. energization square coil are hung on iron stand, and magnet is close, observation coil pendulum
Dynamic, the experiment equipment is simple, cannot succinctly, intuitively pass through control variable, qualitatively verify Ampere force and magnetic induction intensity, magnetic
Length, the relationship between electric current and conductor length, can not intuitively verify left hand theorem and magnetic direction and electric current side
To relationship, meanwhile, existing ampere force presentation device loads difficult, is difficult the spatial position that fixes, is unfavorable for reducing Ampere force
Experimental error.
Summary of the invention
The present invention proposes magnetic-type Ampere force and quantitatively demonstrates for the problems in above-mentioned background technique of effective solution
Instrument, specific technical solution are as follows:
A kind of magnetic-type Quantitative demonstration apparatus about Ampere force, including have adjust electric current, reset reset, display Ampere force numerical value and
It shows the magnetic type control panel of adjusted current values function, be loaded in the modified line coil apparatus of the magnetic type control panel lower end
With U-shaped magnet；
The magnetic type control panel lower end is equipped with tension sensor, and the tension sensor lower end installation has connection
The attachment device of type transformer coil apparatus function；
The modified line coil apparatus includes: fixed frame and coil；It is square structure, coil uniform winding among the fixed frame
On square structure；
The both ends of the U-shaped magnet opening are mounted on the coil two sides immediately below tension sensor.
Preferably, the fixed frame end face is equipped with several first coil connectors, several first coil connectors point
The coil of the number of turns not different from winding is connected.
Preferably, there are three the first coil connectors, and it is respectively with coil in the position of 10 circles, 20 circles and 30 circles
It is connected.
Preferably, the fixed frame top is equipped with power connector and the second coil connector；The power connector with
Coil one end is connected, and the second coil connector is independently arranged, and connects the second coil connector and first coil by connecting line
Connector is connected.
Preferably, the attachment device of magnetic type control panel lower end setting is to connect to power supply head and the second line respectively
The connected erection joint of connector is enclosed, the erection joint is connected with magnetic type control panel positive and negative anodes respectively.
Preferably, the magnetic type control panel back side is equipped with magnet.
A kind of application method of magnetic-type Quantitative demonstration apparatus about Ampere force,
A. by control variable, Ampere force and magnetic induction intensity, the length in magnetic field, electric current and conductor length are qualitatively verified
Between relationship；
(1) magnetic type control panel is adsorbed on blackboard for teaching by, the erection joint connect to power supply respectively head and
Second coil connector is connected, and completes the installation of modified line coil apparatus, it is least that the second coil connector is connected the number of turns
First coil connector, connection direct current 20V power supply, closure power switch and disconnection coil switch, is adjusted to 8A for electric current, presses multiple
Position is reset, the Ampere force 0 for showing magnetic type control panel, then adds one block of U-shaped magnet, closing coil switch, observation
Ampere force shown by magnetic type control panel, then successively by the U-shaped magnet of same size respectively with one piece, two pieces, three pieces
Quantity be added on the coil of same straightway to change the length in magnetic field, and record Ampere force respectively；
(2) replaces the different U-shaped magnet of thin and thick to enhance induction, and repeat the above steps the operation of (1)；
(3) electric current is adjusted to 6A, 4A, 2A by, and repeat the above steps the operation of (1)；
(4) the second coil connector is respectively connected to the first coil connector that the number of turns is gradually incremented by by, is repeated the above steps
(1) operation.
B. left hand rule is verified；
(1) according to the method attachment device of (1) in step A, change magnetic direction by converting U-shaped magnet, verifying is left
Hand rule；
(2) according to the method attachment device of (1) in step A, by replacement power connector, the second coil connector and become
The connection of coil device changes current direction, verifies left hand rule.
Difference with the prior art of the present invention is: 1. demonstrators of the invention can be adsorbed on blackboard, easy to carry, tear open
Dress is convenient；2. can succinctly, intuitively by control variable, qualitatively verify Ampere force and magnetic induction intensity, magnetic field length,
Relationship between electric current and conductor length；3. the relationship of left hand theorem Yu magnetic direction and current direction can be verified intuitively.
Detailed description of the invention
Fig. 1 is overall schematic of the present invention；
Fig. 2 is the U-shaped magnet schematic diagram of the present invention；
Fig. 3 is single unit system side view of the present invention；
Fig. 4 is type transformer coil schematic device of the present invention；
Fig. 5 is circuit diagram of the present invention；
Fig. 6 is magnetic type control panel of the present invention；
Fig. 7 is that coil of the present invention winds schematic diagram.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawing with embodiment to this
Invention is described in further detail.
A kind of magnetic-type Quantitative demonstration apparatus about Ampere force, including have adjust electric current, reset reset, display Ampere force numerical value and
The type transformer coil dress for showing the magnetic type control panel 1 of adjusted current values function, being loaded in the magnetic type control panel lower end
Set 2 and U-shaped magnet 3；The U-shaped magnet 3 includes the pole the N 3-1 and the pole S 3-2 being fixed on steelframe 3-3；
The magnetic type control panel lower end is equipped with tension sensor 4, and 4 lower end of the tension sensor installation, which has, to be connected
Connect the attachment device of type transformer coil apparatus function；The attachment device is to connect to power supply first 5 and 6 phase of the second coil connector respectively
Erection joint 7 even, the erection joint 7 are connected with magnetic type control panel positive and negative anodes respectively, the magnetic type control panel
The back side is equipped with magnet 8；The magnetic type control panel accesses DC24V power supply by connection jaws 21；
As preferred embodiment, the magnetic type control panel is equipped with coil current indicator light 9,10 and of monitor switch
Coil switch 11；
The circuit theory of the magnetic type control panel 1 are as follows: the anode of DC power supply connects fixed value resistance 12, fixed value resistance 12
It is connected to ammeter 13, and ammeter 13 is directly connected to the erection joint 7-1 of positive terminal, the cathode of DC power supply connects adjustable resistance
14, adjustable resistance 14 connect negative pole end erection joint 7-2, when adjusting electric current, can by rotatory current adjusting knob 15 come
Adjustable resistance 14 is controlled, to adjust electric current, the electric current of adjusting is shown by the display 16 in magnetic type control panel；Installation
Tension sensor 4 is installed on the top of connector, resets 17 by the reset in magnetic type control panel, to adjust tension sensor 4,
Making tension sensor 4, for zero to ensure that the precision of measurement, the pulling force measured passes through magnetic-type control plane in measurement
It is shown on display 22 on plate；
The modified line coil apparatus includes: fixed frame 18 and coil 19；The fixed frame top is equipped with power connector 5 and the
Two coil connector 6；The power connector 5 is connected with 19 one end of coil, and the second coil connector 6 is independently arranged, and is passed through
Connecting line makes the second coil connector 6 be connected with first coil connector 20, is square structure among the fixed frame, and coil is equal
It is even to be wrapped on square structure；The fixed frame end face is equipped with several first coil connectors 20, and several first coils connect
Connector respectively the number of turns different from winding coil be connected, there are three the first coil connectors 20, and its respectively with coil
It is connected in the position of 10 circles, 20 circles and 30 circles.
The both ends of the U-shaped magnet opening are mounted on the coil two sides immediately below tension sensor.
A kind of application method of magnetic-type Quantitative demonstration apparatus about Ampere force, A. qualitatively verify Ampere force by control variable
With the relationship between magnetic induction intensity, the length in magnetic field, electric current and conductor length；
(1) magnetic type control panel is adsorbed on blackboard for teaching by, the erection joint connect to power supply respectively head and
Second coil connector is connected, and completes the installation of modified line coil apparatus, it is least that the second coil connector is connected the number of turns
First coil connector, connection direct current 20V power supply, closure power switch and disconnection coil switch, is adjusted to 8A for electric current, presses multiple
Position is reset, the Ampere force 0 for showing magnetic type control panel, then adds one block of U-shaped magnet, closing coil switch, observation
Ampere force shown by magnetic type control panel, then successively by the U-shaped magnet of same size respectively with one piece, two pieces, three pieces
Quantity be added on the coil of same straightway to change the length in magnetic field, and record Ampere force respectively；
(2) replaces the different U-shaped magnet of thin and thick to enhance induction, and repeat the above steps the operation of (1)；
(3) electric current is adjusted to 6A, 4A, 2A by, and repeat the above steps the operation of (1)；
(4) the second coil connector is respectively connected to the first coil connector that the number of turns is gradually incremented by by, is repeated the above steps
(1) operation.
B. left hand rule is verified；
(1) according to the method attachment device of (1) in step A, change magnetic direction by converting U-shaped magnet, verifying is left
Hand rule；
(2) according to the method attachment device of (1) in step A, by replacement power connector, the second coil connector and become
The connection of coil device changes current direction, verifies left hand rule.
The item that should be noted:
1. coil is powered for a long time, resistance and chassis meeting must be hot, should close power supply in time.Please note that coil power
Indicator light, the bright instruction coil of lamp are being powered.
2. surrounding is unclosed to please note that protection internal structure for convenient for research principle and heat dissipation.
The last 3. magnetic attraction is larger, pays attention to buffering.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as the protection scope of invention.
Claims (7)
1. a kind of magnetic-type Quantitative demonstration apparatus about Ampere force, which is characterized in that adjust electric current, reset clearing, display peace including having
The magnetic type control panel of training power numerical value and the adjusted current values function of display is loaded in the magnetic type control panel lower end
Modified line coil apparatus and U-shaped magnet；
The magnetic type control panel lower end is equipped with tension sensor, and the tension sensor lower end installation has connection modified line
The attachment device of coil apparatus function；
The modified line coil apparatus includes: fixed frame and coil；It is square structure among the fixed frame, coil uniform winding is in side
In shape structure；
The both ends of the U-shaped magnet opening are mounted on the coil two sides immediately below tension sensor.
2. magnetic-type Quantitative demonstration apparatus about Ampere force according to claim 1, which is characterized in that the fixed frame end face is equipped with
Several first coil connectors, several first coil connectors respectively the number of turns different from winding coil be connected.
3. magnetic-type Quantitative demonstration apparatus about Ampere force according to claim 2, which is characterized in that the first coil connector
There are three, and it is connected with coil in the position of 10 circles, 20 circles and 30 circles respectively.
4. magnetic-type Quantitative demonstration apparatus about Ampere force according to claim 2, which is characterized in that the fixed frame top is equipped with
Power connector and the second coil connector；The power connector is connected with coil one end, and the second coil connector is independently set
It sets, and so that the second coil connector is connected with first coil connector by connecting line.
5. magnetic-type Quantitative demonstration apparatus about Ampere force according to claim 4, which is characterized in that magnetic type control panel lower end
The attachment device being arranged is to connect to power supply the erection joint that head and the second coil connector are connected respectively, and the installation connects
Head is connected with magnetic type control panel positive and negative anodes respectively.
6. magnetic-type Quantitative demonstration apparatus about Ampere force according to claim 1, which is characterized in that the magnetic type control panel
The back side is equipped with magnet.
7. the application method of magnetic-type Quantitative demonstration apparatus about Ampere force according to claim 6, which is characterized in that
A. it by control variable, qualitatively verifies between Ampere force and magnetic induction intensity, the length in magnetic field, electric current and conductor length
Relationship；
(1) magnetic type control panel is adsorbed on blackboard for teaching by, and the erection joint connects to power supply head and second respectively
Coil connector is connected, and completes the installation of modified line coil apparatus, the second coil connector is connected the number of turns least first
Coil connector, connection direct current 20V power supply, closure power switch and disconnection coil switch, is adjusted to 8A for electric current, it is clear to press reset
Zero, then the Ampere force 0 for showing magnetic type control panel adds one block of U-shaped magnet, closing coil switch makes entirely to drill
Show that instrument circuit is connected, observe Ampere force shown by magnetic type control panel, then successively distinguishes the U-shaped magnet of same size
It is added to one piece, two pieces, three pieces of quantity to the length for changing magnetic field on the coil of same straightway, and record peace respectively
Train power；
(2) replaces the different U-shaped magnet of thin and thick to enhance induction, and repeat the above steps the operation of (1)；
(3) electric current is adjusted to 6A, 4A, 2A by, and repeat the above steps the operation of (1)；
(4) the second coil connector is respectively connected to the first coil connector that the number of turns is gradually incremented by by, and repeat the above steps (1)
Operation.
B. left hand rule is verified；
(1) according to the method attachment device of (1) in step A, change magnetic direction by converting U-shaped magnet, verifying left hand is fixed
Then；
(2) according to the method attachment device of (1) in step A, pass through replacement power connector, the second coil connector and type transformer coil
The connection of device changes current direction, verifies left hand rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033719.XA CN109036047A (en) | 2018-09-05 | 2018-09-05 | Magnetic-type Quantitative demonstration apparatus about Ampere force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033719.XA CN109036047A (en) | 2018-09-05 | 2018-09-05 | Magnetic-type Quantitative demonstration apparatus about Ampere force |
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| Publication Number | Publication Date |
|---|---|
| CN109036047A true CN109036047A (en) | 2018-12-18 |
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ID=64624121
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811033719.XA Pending CN109036047A (en) | 2018-09-05 | 2018-09-05 | Magnetic-type Quantitative demonstration apparatus about Ampere force |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637310A (en) * | 2019-01-10 | 2019-04-16 | 沈阳师范大学 | A kind of the physics experiments of high school equipment and measurement method of quantitative measurment Ampere force |
| CN112345442A (en) * | 2020-09-30 | 2021-02-09 | 中核核电运行管理有限公司 | Magnetic attraction type lead joint device |
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| CN2775777Y (en) * | 2005-03-23 | 2006-04-26 | 太原理工大学 | Ampere force demonstration device |
| CN201965825U (en) * | 2011-03-07 | 2011-09-07 | 王韶修 | Ampere force experiment apparatus |
| CN103903498A (en) * | 2014-04-21 | 2014-07-02 | 石小明 | Ampere force experimental control device |
| CN206224876U (en) * | 2016-08-31 | 2017-06-06 | 张烨 | A kind of magnetic-type laser optical disk |
| CN207134027U (en) * | 2017-06-05 | 2018-03-23 | 张圣阳 | Ampere force presentation device |
| CN207765035U (en) * | 2017-10-20 | 2018-08-24 | 天津市海河中学 | The refraction apparatus for demonstrating of magnetic-type light |
| CN209183085U (en) * | 2018-09-05 | 2019-07-30 | 天津中德应用技术大学 | Magnetic-type Quantitative demonstration apparatus about Ampere force |
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- 2018-09-05 CN CN201811033719.XA patent/CN109036047A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2775777Y (en) * | 2005-03-23 | 2006-04-26 | 太原理工大学 | Ampere force demonstration device |
| CN201965825U (en) * | 2011-03-07 | 2011-09-07 | 王韶修 | Ampere force experiment apparatus |
| CN103903498A (en) * | 2014-04-21 | 2014-07-02 | 石小明 | Ampere force experimental control device |
| CN206224876U (en) * | 2016-08-31 | 2017-06-06 | 张烨 | A kind of magnetic-type laser optical disk |
| CN207134027U (en) * | 2017-06-05 | 2018-03-23 | 张圣阳 | Ampere force presentation device |
| CN207765035U (en) * | 2017-10-20 | 2018-08-24 | 天津市海河中学 | The refraction apparatus for demonstrating of magnetic-type light |
| CN209183085U (en) * | 2018-09-05 | 2019-07-30 | 天津中德应用技术大学 | Magnetic-type Quantitative demonstration apparatus about Ampere force |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637310A (en) * | 2019-01-10 | 2019-04-16 | 沈阳师范大学 | A kind of the physics experiments of high school equipment and measurement method of quantitative measurment Ampere force |
| CN112345442A (en) * | 2020-09-30 | 2021-02-09 | 中核核电运行管理有限公司 | Magnetic attraction type lead joint device |
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