CN2035906U - Audio and vidio demonstrator for conductivity fo cold liquid - Google Patents
Audio and vidio demonstrator for conductivity fo cold liquid Download PDFInfo
- Publication number
- CN2035906U CN2035906U CN 88209503 CN88209503U CN2035906U CN 2035906 U CN2035906 U CN 2035906U CN 88209503 CN88209503 CN 88209503 CN 88209503 U CN88209503 U CN 88209503U CN 2035906 U CN2035906 U CN 2035906U
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- conductivity
- utility
- model
- demonstrator
- loudspeaker
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Abstract
The utility model relates to an electric audio and video demonstrator for the conductivity of solution. The demonstration effect of the demonstrator for the conductivity experiment of chemical solution in present junior and senior middle schools is not obvious, and in particular almost does not inspect the conductivity for weak electrolyte. The utility model is composed of an electronic music integrated block, an LED, a loudspeaker, etc. The electric audio and video demonstrator for the conductivity of solution has video display and as well as has audio display, and the utility model can prompt and reinforce the learning interest of students. The utility model has the advantages of saved power consumption, convenient operation, small size and low cost, and the utility model can also demonstrate the weak electrolyte.
Description
The utility model belongs to the improvement of teaching aid.Existing just, high middle school is for learning the solution conductivity experiment, used teaching aid is to adopt the miniature bulb on the common flashlight to show, the power supply more than the employing direct current 4V.Exist experimental phenomena not obvious, almost do not observe as weak electrolyte (acetic acid), and operation inconvenience, shortcomings such as waste power supply.
The purpose of this utility model: for solving in the past solution conductivity experiment teaching aid demonstration DeGrain, operation inconvenience, problems such as waste power supply provide demonstration teaching aid a kind of not only sound but also that have light to show.
Content of the present utility model:
The utility model is made up of dry cell, light emitting diode, loudspeaker, electronic music integrated package, triode, resistance, electrode.
Good effect of the present utility model:
The utility model demonstrative process is obvious, and distinguishing ability is strong, not only can be used for the junior middle school for solution conductivity experiment, and can also be used for the strong and weak electrolytical discriminating of senior middle school.Not only there is light to show that also sound demonstration can strengthen students'interest in learning, power consumptive province (No. 5 battery one joint is available more than 1 year).
Description of drawings:
Accompanying drawing 1 is the circuit diagram of solution conductivity electronic acoustooptic demonstration device.
Most preferred embodiment:
With reference to accompanying drawing 1, power supply 1 adopts No. 5 dry cells of a joint, and the 2nd, KD series trigger-type electronic music integrated package, the 3rd, transistor, the 4th, light emitting diode, the 5th, the loudspeaker of 0.25W, the 6th, be placed on the conductive electrode in the solution, the 7th, the outer meeting resistance R of integrated package selects 36K for use.Above element is pressed the positive pole of accompanying drawing 1 mode with the negative pole sending and receiving optical diode 4 of power supply, and the negative pole of light emitting diode 4 connects an end of loudspeaker 5, a pole plate of another termination conductive electrode 6 of loudspeaker 5, and another pole plate connects the positive pole of power supply 1.The negative pole of light emitting diode 4 goes back and connects the C utmost point of triode 3 simultaneously, the b utmost point e utmost point of triode 3 connects two pins of music-integrating block 2 control ends and output terminal respectively, integrated package 2 outer meeting resistance pins are connected to resistance R, and the power end of integrated package is connected on the positive pole of power supply 1.Constituted embodiment thus.
Claims (1)
1, solution conductivity electronic acoustooptic demonstration device is characterized in that by electronic music integrated package 2, triode 3, and light emitting diode 4, loudspeaker 5, resistance 7, electrode 6, power supply 1 is formed; Resistance 7 is connected on the outer meeting resistance end of music-integrating block 2, the b of triode 3, the c utmost point are connected on the control end and the output terminal of music-integrating block 2 respectively, the negative pole of the c utmost point sending and receiving optical diode 4 of triode and an end of loudspeaker 5, and a pole plate of another termination conductive electrode 6 of loudspeaker, another pole plate of electrode connects the power end of music-integrating block 2, also and connect the positive pole of power supply 1, the positive pole of the negative pole sending and receiving optical diode of power supply 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209503 CN2035906U (en) | 1988-08-08 | 1988-08-08 | Audio and vidio demonstrator for conductivity fo cold liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209503 CN2035906U (en) | 1988-08-08 | 1988-08-08 | Audio and vidio demonstrator for conductivity fo cold liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2035906U true CN2035906U (en) | 1989-04-12 |
Family
ID=4843140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88209503 Withdrawn CN2035906U (en) | 1988-08-08 | 1988-08-08 | Audio and vidio demonstrator for conductivity fo cold liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2035906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652684A (en) * | 2015-11-03 | 2017-05-10 | 重庆尊来科技有限责任公司 | Integrated-type conductivity visual teaching demonstration instrument |
-
1988
- 1988-08-08 CN CN 88209503 patent/CN2035906U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652684A (en) * | 2015-11-03 | 2017-05-10 | 重庆尊来科技有限责任公司 | Integrated-type conductivity visual teaching demonstration instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) |