CN201893055U - Electric bridge circuit demonstration instrument - Google Patents
Electric bridge circuit demonstration instrument Download PDFInfo
- Publication number
- CN201893055U CN201893055U CN2010206072354U CN201020607235U CN201893055U CN 201893055 U CN201893055 U CN 201893055U CN 2010206072354 U CN2010206072354 U CN 2010206072354U CN 201020607235 U CN201020607235 U CN 201020607235U CN 201893055 U CN201893055 U CN 201893055U
- Authority
- CN
- China
- Prior art keywords
- resistance
- inductance
- variable
- resistor
- electric bridge
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an electric bridge circuit demonstration instrument and belongs to the technical field of demonstration instruments. The circuit comprises resistors, a capacitor and inductors, and a signal input end is connected with the input end of an electric bridge, and the circuit is characterized in that the first resistor is connected in series with the capacitor and then connected in parallel with the first inductor and the second resistor; the third resistor and the third inductor are connected in parallel; the fourth resistor and the fourth inductor are connected in parallel; the sixth resistor is connected in series with a variable capacitor and then connected in parallel with the second variable inductor and the fifth variable resistor; and an ammeter is connected in series with a voltmeter and then connected to the output end of the electric bridge. By adopting the technical scheme, the utility model has the advantages of straightforward demonstration and economy and practicality in use.
Description
Technical field
The utility model relates to a kind of bridge diagram demonstrator, belongs to the demonstration instrument technical field.
Background technology
At present, in the teaching of electronic circuit, when lecturing resistance bridge, capacitance bridge and inductance bridge, no demonstration instrument demonstration.
Summary of the invention
The purpose of this utility model provides a kind of bridge diagram demonstrator, in the time of demonstrating resistance bridge, capacitance bridge and inductance bridge bridge arm unit parameter and change, and the variation of output end current, voltage.
The purpose of this utility model is achieved in that circuit is made up of resistance, electric capacity, inductance, signal input part links to each other with the electric bridge input end, it is characterized in that: after first resistance and the capacitances in series again with first inductance, the second resistance parallel connection, the 3rd resistance and the 3rd inductance parallel connection, the 4th resistance and the 4th inductance parallel connection, after the series connection of the 6th resistance and variable capacitance again with second variable inductance, the 5th variable resistor parallel connection, reometer, voltage table series connection back link to each other with the electric bridge output terminal.
Because adopt technique scheme, advantage and good effect that the utility model had are: demonstration comes into plain view, and is economical and practical.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the structural representation of the utility model embodiment.
N. signal input part R among the figure
1. first resistance R
2. second resistance R
3. the 3rd resistance R
4. the 4th resistance R
5. the 5th variable resistor R
6. the 6th resistance C
1. capacitor C
2. variable capacitance L
1. first inductance L
2. the second variable inductance L
3. the 3rd inductance L
4. the 4th inductance A. reometer V. voltage table S. Graphic Panel D. base
Embodiment
In Fig. 1, signal input part (N) links to each other with the electric bridge input end, the first resistance (R
1) and electric capacity (C
1) after the series connection again with the first inductance (L
1), the second resistance (R
2) parallel connection, the 3rd resistance (R
3) and the 3rd inductance (L
3) parallel connection, the 4th resistance (R
4) and the 4th inductance (L
4) parallel connection, the 6th resistance (R
6) and variable capacitance (C
2) after the series connection again with the second variable inductance (L
2), the 5th variable resistor (R
5) parallel connection, reometer (A), voltage table (V) series connection back link to each other with the electric bridge output terminal.
In Fig. 2, Graphic Panel (S) links to each other with base (D), signal input part (N), the first resistance (R
1), the second resistance (R
2), the 3rd resistance (R
3), the 4th resistance (R
4), the 5th variable resistor (R
5), the 6th resistance (R
6), electric capacity (C
1), variable capacitance (C
2), the first inductance (L
1), the second variable inductance (L
2), the 3rd inductance (L
3), the 4th inductance (L
4), reometer (A) and voltage table (V) place the front of Graphic Panel (S).
Claims (2)
1. bridge diagram demonstrator, circuit is made up of resistance, electric capacity, inductance, and signal input part (N) links to each other with the electric bridge input end, it is characterized in that: signal input part (N) links to each other with the electric bridge input end, the first resistance (R
1) and electric capacity (C
1) after the series connection again with the first inductance (L
1), the second resistance (R
2) parallel connection, the 3rd resistance (R
3) and the 3rd inductance (L
3) parallel connection, the 4th resistance (R
4) and the 4th inductance (L
4) parallel connection, the 6th resistance (R
6) and variable capacitance (C
2) after the series connection again with the second variable inductance (L
2), the 5th variable resistor (R
5) parallel connection, reometer (A), voltage table (V) series connection back link to each other with the electric bridge output terminal.
2. a kind of bridge diagram demonstrator according to claim 1 is characterized in that: signal input part (N), the first resistance (R
1), the second resistance (R
2), the 3rd resistance (R
3), the 4th resistance (R
4), the 5th variable resistor (R
5), the 6th resistance (R
6), electric capacity (C
1), variable capacitance (C
2), the first inductance (L
1), the second variable inductance (L
2), the 3rd inductance (L
3), the 4th inductance (L
4), reometer (A) and voltage table (V) place the front of Graphic Panel (S).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206072354U CN201893055U (en) | 2010-11-16 | 2010-11-16 | Electric bridge circuit demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206072354U CN201893055U (en) | 2010-11-16 | 2010-11-16 | Electric bridge circuit demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201893055U true CN201893055U (en) | 2011-07-06 |
Family
ID=44222526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206072354U Expired - Fee Related CN201893055U (en) | 2010-11-16 | 2010-11-16 | Electric bridge circuit demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201893055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903285A (en) * | 2012-10-16 | 2013-01-30 | 长春工业大学 | Demonstration instrument for addition and subtraction characteristics of electrical bridge |
-
2010
- 2010-11-16 CN CN2010206072354U patent/CN201893055U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903285A (en) * | 2012-10-16 | 2013-01-30 | 长春工业大学 | Demonstration instrument for addition and subtraction characteristics of electrical bridge |
| CN102903285B (en) * | 2012-10-16 | 2014-05-07 | 长春工业大学 | Demonstration instrument for addition and subtraction characteristics of electrical bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20131116 |