CN104680906A - Demonstration instrument for effects of transformer on alternating current, direct current and pulse current - Google Patents
Demonstration instrument for effects of transformer on alternating current, direct current and pulse current Download PDFInfo
- Publication number
- CN104680906A CN104680906A CN201510125874.4A CN201510125874A CN104680906A CN 104680906 A CN104680906 A CN 104680906A CN 201510125874 A CN201510125874 A CN 201510125874A CN 104680906 A CN104680906 A CN 104680906A
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- China
- Prior art keywords
- switch
- transformer
- current
- oscillograph
- module
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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
-
- 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
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- 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)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention relates to a demonstration instrument for effects of a transformer on alternating current, direct current and pulse current, and belongs to the field of physical experiment instruments. A circuit comprises DC (direct current), AC (alternating current), a power conversion switch K, a switch S1, a switch S2, a switch S3, a switch S4, a saw blade box J, a module I, the transformer T, an oscilloscope V1, an oscilloscope V2 and a bulb H; an NE555 frequency-adjustable pulse output module is used as the module I; the saw blade box J comprises two saw blades arranged in a square box; the oscilloscope V1, the oscilloscope V2 and the bulb H are used for demonstrating AC, DC and pulse-current phenomena. The demonstration instrument has the advantages and positive benefits that demonstration is visual and intuitionistic and the effects of the transformer on the AC, the DC and the pulse current can be demonstrated.
Description
Technical field
The present invention relates to a kind of transformer alternating, direct current, pulse current effect demonstrator, belong to physics educational apparatus field.
Background technology
At present, in physics teaching, demonstration instrument about transformer action can only demonstrate transformer to the effect exchanged, the effect of transformer to direct current, pulse current can not be demonstrated, student sees that the rear mutual inductance principle to transformer can not have deep understanding, this demonstration instrument can demonstrate transformer to the effect exchanged, and can demonstrate again the effect of transformer to direct current, pulse current.
Summary of the invention
The object of this invention is to provide a kind of transformer alternating, direct current, pulse current effect demonstrator, transformer can be demonstrated to the effect exchanged, the effect of transformer to direct current, pulse current can be demonstrated again.
The object of the present invention is achieved like this: circuit is by direct supply DC, AC power AC, transfer switch K, switch S
1, switch S
2, switch S
3, switch S
4, saw blade box J, module I, transformer T, oscillograph V
1, oscillograph V
2, bulb H forms.1 end of the one termination transfer switch K of AC power AC, the positive pole of direct supply DC connects 2 ends of transfer switch K, and 3 ends of transfer switch K connect switch S simultaneously
1one end, switch S
2one end, switch S
3one end, switch S
3the other end connect 2 ends of saw blade box J and the output pin of module I, switch S simultaneously
21 end of another termination saw blade box J, switch S
1the positive pin of power supply of other end connection module I, the grounding leg of connection module I after the other end of AC power AC is connected with the negative terminal of direct supply DC, a winding of transformer T is connected between the output pin of module I and grounding leg, and the Secondary Winding of transformer T passes through switch S
4be connected on the two ends of bulb H, oscillograph V
1be connected on winding two ends of transformer T, oscillograph V
2be connected on the Secondary Winding two ends of transformer T.Module I NE555 frequency-adjustable pulse output module, saw blade box J places two saw blades in square box.Oscillograph V
1, oscillograph V
2, bulb H be used for demonstration interchange, direct current, pulse current phenomenon.
Owing to adopting technique scheme, the advantage that the present invention has with good effect is: can demonstrate transformer to the effect exchanged, and can demonstrate again the effect of transformer to direct current, pulse current, and structure is simple, and intuitively accurately, operation demonstration is convenient.
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.
AC. AC power DC. direct supply K. transfer switch S in figure
1. switch S
2. switch S
3. switch I .NE555 frequency-adjustable pulse output module J. saw blade box V
1. oscillograph T. transformer S
4. switch V
2. oscillograph H. bulb 1. base 2. demonstration board
Embodiment:
In FIG, 1 end of a termination transfer switch K of AC power AC, the positive pole of direct supply DC connects 2 ends of transfer switch K, and 3 ends of transfer switch K connect switch S simultaneously
1one end, switch S
2one end, switch S
3one end, switch S
3the other end connect 2 ends of saw blade box J and the output pin of module I, switch S simultaneously
21 end of another termination saw blade box J, switch S
1the positive pin of power supply of other end connection module I, the grounding leg of connection module I after the other end of AC power AC is connected with the negative terminal of direct supply DC, a winding of transformer T is connected between the output pin of module I and grounding leg, and the Secondary Winding of transformer T passes through switch S
4be connected on the two ends of bulb H, oscillograph V
1be connected on winding two ends of transformer T, oscillograph V
2be connected on the Secondary Winding two ends of transformer T.Module I NE555 frequency-adjustable pulse output module, saw blade box J places two saw blades in square box.Oscillograph V
1, oscillograph V
2, bulb H be used for demonstration interchange, direct current, pulse current phenomenon.
1 cut-off switch S
1, cut-off switch S
2, 2 ends of the switch K that switches on power in order and 3 ends, turn on-switch S
3, turn on-switch S
4, now oscillograph V
1a winding of display transformer T has DC voltage, oscillograph V
2the Secondary Winding of display transformer T does not have voltage, and bulb H does not work, and this phenomenon describes transformer does not have mutual inductance effect to DC current.
2 direct supply DC use 1.5 volts, cut-off switch S
1, cut-off switch S
3, 2 ends of the switch K that switches on power in order and 3 ends, turn on-switch S
2, turn on-switch S
4, both hands are adjacent to the alignment of the tines portion of two saw blades relative motion, now oscillograph V respectively
1a winding of display transformer T has pulse voltage, oscillograph V
2the Secondary Winding of display transformer T has pulse voltage, and bulb H is bright, and this phenomenon describes transformer paired pulses electric current mutual inductance effect.
3 direct supply DC use 12 volts, cut-off switch S
2, cut-off switch S
3, 2 ends of the switch K that switches on power in order and 3 ends, turn on-switch S
1, turn on-switch S
4, the frequency of NE555 frequency-adjustable pulse output module I is adjusted to 50 He Zhi, now oscillograph V
1a winding of display transformer T has pulse voltage, oscillograph V
2the Secondary Winding of display transformer T has pulse voltage, and bulb H is bright, and this phenomenon describes transformer paired pulses electric current mutual inductance effect.
4 cut-off switch S
1, cut-off switch S
2, 1 end of the switch K that switches on power in order and 3 ends, turn on-switch S
3, turn on-switch S
4, now oscillograph V
1a winding of display transformer T has alternating voltage, oscillograph V
2the Secondary Winding of display transformer T has alternating voltage, and bulb H is bright, and this phenomenon describes transformer has mutual inductance effect to alternating current.
Claims (1)
1. transformer alternating, direct current, a pulse current effect demonstrator, circuit is by direct supply DC, AC power AC, transfer switch K, switch S
1, switch S
2, switch S
3, switch S
4, saw blade box J, module I, transformer T, oscillograph V
1, oscillograph V
2, bulb H forms, 1 end of a termination transfer switch K of AC power AC, the positive pole of direct supply DC connects transfer switch K's
2end, 3 ends of transfer switch K connect switch S simultaneously
1one end, switch S
2one end, switch S
3one end, switch S
3the other end connect 2 ends of saw blade box J and the output pin of module I, switch S simultaneously
21 end of another termination saw blade box J, switch S
1the positive pin of power supply of other end connection module I, the grounding leg of connection module I after the other end of AC power is connected with the negative terminal of direct supply, a winding of transformer T is connected between the output pin of module I and grounding leg, and the Secondary Winding of transformer T passes through switch S
4be connected on the two ends of bulb H, oscillograph V
1be connected on winding two ends of transformer T, oscillograph V
2be connected on the Secondary Winding two ends of transformer T.Module I NE555 frequency-adjustable pulse output module, saw blade box J places two saw blades, oscillograph V in square box
1, oscillograph V
2, bulb H be used for demonstration interchange, direct current, pulse current phenomenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125874.4A CN104680906A (en) | 2015-03-17 | 2015-03-17 | Demonstration instrument for effects of transformer on alternating current, direct current and pulse current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125874.4A CN104680906A (en) | 2015-03-17 | 2015-03-17 | Demonstration instrument for effects of transformer on alternating current, direct current and pulse current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104680906A true CN104680906A (en) | 2015-06-03 |
Family
ID=53315883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510125874.4A Pending CN104680906A (en) | 2015-03-17 | 2015-03-17 | Demonstration instrument for effects of transformer on alternating current, direct current and pulse current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104680906A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898207A (en) * | 2015-12-17 | 2017-06-27 | 重庆尊来科技有限责任公司 | Autoexcitation formula lifts circuit heuristics |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201417542Y (en) * | 2009-03-26 | 2010-03-03 | 李勃锐 | Multivibrator demonstrator |
| CN201965820U (en) * | 2010-10-13 | 2011-09-07 | 江西省樟树第三中学 | Pulsating direct current transformer used in teaching |
| CN202816234U (en) * | 2012-08-24 | 2013-03-20 | 毛向东 | Transformer working principle demonstration device |
| CN204614313U (en) * | 2015-03-17 | 2015-09-02 | 盐城工业职业技术学院 | Transformer alternating, direct current, pulse current effect demonstrator |
-
2015
- 2015-03-17 CN CN201510125874.4A patent/CN104680906A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201417542Y (en) * | 2009-03-26 | 2010-03-03 | 李勃锐 | Multivibrator demonstrator |
| CN201965820U (en) * | 2010-10-13 | 2011-09-07 | 江西省樟树第三中学 | Pulsating direct current transformer used in teaching |
| CN202816234U (en) * | 2012-08-24 | 2013-03-20 | 毛向东 | Transformer working principle demonstration device |
| CN204614313U (en) * | 2015-03-17 | 2015-09-02 | 盐城工业职业技术学院 | Transformer alternating, direct current, pulse current effect demonstrator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898207A (en) * | 2015-12-17 | 2017-06-27 | 重庆尊来科技有限责任公司 | Autoexcitation formula lifts circuit heuristics |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |