CN104680907A - Self inductance demonstrating instrument - Google Patents
Self inductance demonstrating instrument Download PDFInfo
- Publication number
- CN104680907A CN104680907A CN201510125875.9A CN201510125875A CN104680907A CN 104680907 A CN104680907 A CN 104680907A CN 201510125875 A CN201510125875 A CN 201510125875A CN 104680907 A CN104680907 A CN 104680907A
- Authority
- CN
- China
- Prior art keywords
- light emitting
- switch
- emitting diode
- coil
- bulb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Educational Administration (AREA)
- Computational Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Led Devices (AREA)
Abstract
The invention relates to a self inductance demonstrating instrument and belongs to the field of physical experimental instruments. A circuit consists of a direct current power supply E, a switch S1, a switch S2, a switch S3, an adjustable resistor R1, an adjustable resistor R2, a coil L1, a coil L2, a light emitting diode D1, a light emitting diode D2, a light emitting diode D3, a light emitting diode D4, a bulb A1 and a bulb A2; electrified self inductance of the coil L1 is demonstrated in a state that the switches S1, S2 and S3 are disconnected, and self inductance for disconnection of the coil L2 is demonstrated in a state that the switches S1, S2 and S3 are connected. The self inductance demonstrating instrument provided by the invention has the advantages and positive effects that the electrified self inductance and self inductance for disconnection of the coils can be demonstrated in an integrated manner; the direction of a self inductance current can be demonstrated, and the light emitting diodes and bulbs can flicker at the same time when demonstration for disconnection is carried out; the self inductance demonstrating instrument is simple in structure and convenient to operate and demonstrate.
Description
Technical field
The present invention relates to a kind of self-inductive phenomenon demonstration instrument, belong to physics educational apparatus field.
Background technology
At present, in physics teaching, the demonstration instrument about self inductance is made up of the self-induction that is energized, self-inductance power two parts, can not demonstrate the direction of self inductance current, and doing light emitting diode and bulb when power-off is demonstrated can not glisten simultaneously.This demonstration instrument can unite two into one, and can demonstrate the energising self inductance of coil, can demonstrate again the self-inductance power phenomenon of coil; Can demonstrate the direction of self inductance current, light emitting diode and bulb can glisten when doing power-off demonstration again, demonstration is convenient, successful simultaneously.
Summary of the invention
The object of this invention is to provide a kind of self-inductive phenomenon demonstration instrument, the energising self-induction of coil, self-inductance power phenomenon can be demonstrated.
The object of the present invention is achieved like this: circuit is by direct supply E, switch S
1, switch S
2, switch S
3, adjustable resistance R
1, adjustable resistance R
2, coil L
1, coil L
2, light emitting diode D
1, light emitting diode D
2, light emitting diode D
3, light emitting diode D
4, bulb A
1, bulb A
2composition.Switch S
2one end, coil L
1one end, adjustable resistance R
2intermediate ends be connected after connect the positive pole of direct supply E, switch S
2the other end connect switch S simultaneously
3one end and coil L
1the other end, light emitting diode D
1negative pole and light emitting diode D
2positive pole be connected after wiring circle L
1the other end, switch S
3other end wiring circle L
2one end, light emitting diode D
1positive pole and light emitting diode D
2negative pole be connected after meet bulb A
1one end, light emitting diode D
3negative pole and light emitting diode D
4positive pole be connected after meet adjustable resistance R
2the other end, light emitting diode D
3positive pole and light emitting diode D
4negative pole be connected after meet A
2one end, coil L
2the other end, bulb A
1the other end, bulb A
2the other end be connected after meet adjustable resistance R
1intermediate ends, adjustable resistance R
1another termination switch S
1one end, switch S
1the negative pole of another termination direct supply E.In switch S
1, switch S
2, switch S
3all demonstrate coil L under off-state
1energising self inductance, in switch S
1, switch S
2, switch S
3all demonstrate coil L under on-state
2self-inductance power phenomenon, light emitting diode is used for demonstrating the direction of self inductance current, and the brightness of bulb is used for demonstration energising self inductance, and bulb and light emitting diode glisten for demonstration self-inductance power phenomenon simultaneously.
Owing to adopting technique scheme, the advantage that the present invention has and good effect are: unite two into one, and can demonstrate the energising self inductance of coil, can demonstrate again the self-inductance power phenomenon of coil; Can demonstrate the direction of self inductance current, light emitting diode and bulb can glisten when doing power-off demonstration again, structure is simple, and operation demonstration is convenient simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is circuit theory diagrams of the present invention.
Fig. 2 is one-piece construction schematic diagram of the present invention.
E. direct supply S in figure
1. switch S
2. switch S
3. switch R
1. adjustable resistance R
2. adjustable resistance L
1. coil L
2. coil D
1. light emitting diode D
2. light emitting diode D
3. optical diode D
4. light emitting diode A
1. bulb A
2. bulb 1. base 2. demonstration board
Embodiment:
In FIG, circuit is by direct supply (E), switch (S
1), switch (S
2), switch (S
3), adjustable resistance (R
1), adjustable resistance (R
2), coil (L
1), coil (L
2), light emitting diode (D
1), light emitting diode (D
2), light emitting diode (D
3), light emitting diode (D
4), bulb (A
1), bulb (A
2) composition.Switch (S
2) one end, coil (L
1) one end, adjustable resistance (R
2) intermediate ends be connected after connect the positive pole of direct supply (E), switch (S
2) the other end meet switch (S simultaneously
3) one end and coil (L
1) the other end, light emitting diode (D
1) negative pole and light emitting diode (D
2) positive pole be connected after wiring circle (L
1) the other end, switch (S
3) other end wiring circle (L
2) one end, light emitting diode (D
1) positive pole and light emitting diode (D
2) negative pole be connected after meet bulb (A
1) one end, light emitting diode (D
3) negative pole and light emitting diode (D
4) positive pole be connected after meet adjustable resistance (R
2) the other end, light emitting diode (D
3) positive pole and light emitting diode (D
4) negative pole be connected after meet (A
2) one end, coil (L
2) the other end, bulb (A
1) the other end, bulb (A
2) the other end be connected after meet adjustable resistance (R
1) intermediate ends, adjustable resistance (R
1) another termination switch (S
1) one end, switch (S
1) the negative pole of another termination direct supply (E).At switch (S
1), switch (S
2), switch (S
3) all demonstrate coil (L under off-state
1) energising self inductance, at switch (S
1), switch (S
2), switch (S
3) all demonstrate coil (L under on-state
2) self-inductance power phenomenon, light emitting diode is used for demonstrating the direction of self inductance current, and the brightness of bulb is used for demonstration energising self inductance, and bulb and light emitting diode glisten for demonstration self-inductance power phenomenon simultaneously.
Claims (1)
1. a self-inductive phenomenon demonstration instrument, circuit is by direct supply E, switch S
1, switch S
2, switch S
3, adjustable resistance R
1, adjustable resistance R
2, coil L
1, coil L
2, light emitting diode D
1, light emitting diode D
2, light emitting diode D
3, light emitting diode D
4, bulb A
1, bulb A
2composition, switch S
2one end, coil L
1one end, adjustable resistance R
2intermediate ends be connected after connect the positive pole of direct supply E, switch S
2the other end connect switch S simultaneously
3one end and coil L
1the other end, light emitting diode D
1negative pole and light emitting diode D
2positive pole be connected after wiring circle L
1the other end, switch S
3other end wiring circle L
2one end, light emitting diode D
1positive pole and light emitting diode D
2negative pole be connected after meet bulb A
1one end, light emitting diode D
3negative pole and light emitting diode D
4positive pole be connected after meet adjustable resistance R
2the other end, light emitting diode D
3positive pole and light emitting diode D
4negative pole be connected after meet A
2one end, coil L
2the other end, bulb A
1the other end, bulb A
2the other end be connected after meet adjustable resistance R
1intermediate ends, adjustable resistance R
1another termination switch S
1one end, switch S
1the negative pole of another termination direct supply E, in switch S
1, switch S
2, switch S
3all demonstrate coil L under off-state
1energising self inductance, in switch S
1, switch S
2, switch S
3all demonstrate coil L under on-state
2self-inductance power phenomenon, light emitting diode is used for demonstrating the direction of self inductance current, and the brightness of bulb is used for demonstration energising self inductance, and bulb and light emitting diode glisten for demonstration self-inductance power phenomenon simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125875.9A CN104680907A (en) | 2015-03-17 | 2015-03-17 | Self inductance demonstrating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125875.9A CN104680907A (en) | 2015-03-17 | 2015-03-17 | Self inductance demonstrating instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104680907A true CN104680907A (en) | 2015-06-03 |
Family
ID=53315884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510125875.9A Pending CN104680907A (en) | 2015-03-17 | 2015-03-17 | Self inductance demonstrating instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104680907A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202373218U (en) * | 2011-11-27 | 2012-08-08 | 裴立献 | Combined-type multifunctional circuit demonstration device |
| CN202816236U (en) * | 2012-09-06 | 2013-03-20 | 雷建设 | Self-inductance demonstration device |
| CN204537578U (en) * | 2015-03-17 | 2015-08-05 | 盐城工业职业技术学院 | Self-inductive phenomenon demonstration instrument |
| CN204833857U (en) * | 2015-08-02 | 2015-12-02 | 宋健 | Self inductance presentation device |
-
2015
- 2015-03-17 CN CN201510125875.9A patent/CN104680907A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202373218U (en) * | 2011-11-27 | 2012-08-08 | 裴立献 | Combined-type multifunctional circuit demonstration device |
| CN202816236U (en) * | 2012-09-06 | 2013-03-20 | 雷建设 | Self-inductance demonstration device |
| CN204537578U (en) * | 2015-03-17 | 2015-08-05 | 盐城工业职业技术学院 | Self-inductive phenomenon demonstration instrument |
| CN204833857U (en) * | 2015-08-02 | 2015-12-02 | 宋健 | Self inductance presentation device |
Non-Patent Citations (1)
| Title |
|---|
| 张奠丰等: "自感演示实验的改进", 《物理教师》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI422278B (en) | Illuminating apparatus and light source control circuit thereof | |
| CN103683263A (en) | Circuit for preventing reverse plug in of direct current power supply and lamp | |
| CN104821155A (en) | Backlight unit and display apparatus having the same | |
| CN104219825B (en) | driving device of light emitting diode | |
| CN204537578U (en) | Self-inductive phenomenon demonstration instrument | |
| CN203690914U (en) | Power supply reversal connection protective device in LED display screen control system | |
| CN204681643U (en) | With the LED matrix of reverse protection | |
| CN202435015U (en) | Power supply system | |
| CN104680907A (en) | Self inductance demonstrating instrument | |
| CN203167362U (en) | LED bulb lamp applied to sound/light control switch | |
| CN205213072U (en) | Light emitting diode (LED) bulb | |
| CN105139732A (en) | Electromagnetic radiation phenomenon and detection demonstration instrument | |
| CN200990161Y (en) | Multiple-aspect self-induction phenomenon demonstration instrument | |
| CN103458552A (en) | LED lamp and start control circuit thereof | |
| CN204315146U (en) | Self-inductance power experiment instrument | |
| CN105243939A (en) | Electronic starter principle demonstration instrument | |
| CN203386402U (en) | Passageway light control circuit demonstration model | |
| CN204904710U (en) | Alcohol gas sensor characteristic and applied demonstration appearance | |
| CN203120248U (en) | Circuit structure of LED backlight source | |
| CN205082029U (en) | Weak current switch formula LED constant -current drive circuit | |
| CN204118417U (en) | One can luminous flash of light cable | |
| CN105792443A (en) | Power supply circuit for driving IC in LED power source | |
| CN204287999U (en) | Temperature controller | |
| CN205375931U (en) | Acoustooptic controlled delay economize on electricity light switch principle demonstration appearance | |
| CN104407245A (en) | Photoresistor characteristics and application tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |
|
| WD01 | Invention patent application deemed withdrawn after publication |