CN2042993U - Three-function acousto-optical display ionic conduction test instrument - Google Patents
Three-function acousto-optical display ionic conduction test instrument Download PDFInfo
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- CN2042993U CN2042993U CN 88205097 CN88205097U CN2042993U CN 2042993 U CN2042993 U CN 2042993U CN 88205097 CN88205097 CN 88205097 CN 88205097 U CN88205097 U CN 88205097U CN 2042993 U CN2042993 U CN 2042993U
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- integrated circuit
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Abstract
The utility model relates to a three-function acoustic-optical display ionic conduction test instrument, mainly comprising two groups of red and green LEDs, an integrated circuit and a driving transistor. The utility model is a three-function teaching appliance which can differentiate electrolyte, non-electrolyte and the strength of the electrolyte by acoustic-optical display.
Description
The utility model mainly relates to a kind of experimental provision of solution conductivity experiment in universities and middle schools's chemistry teaching.For making a tractor serves several purposes, show at acousto-optic on the basis of solution conductivity experiment, added the device that acousto-optic shows and tyndall effect is tested of chemical primary cell experiment.Principal character of the present utility model is the electric conductivity that shows free ion and solution in the solution with sound, two kinds of signals of light simultaneously, the relation of free ion and temperature, and primary element test in the experiment situation of electric current, voltage.It belongs to qualitative instruments used for education.
The macroscopic view demonstration of solution conductivity experiment and primary element experiment, usual way be with bulb or reometer as display device, show very not directly perceived with reometer, the student is difficult for accepting, and shows with bulb, though phenomenon is directly perceived, but not obvious to the electrolytical differentiation of power, experimental phenomena is more single.Add these two kinds of experiments and mostly be own product, none instrument of finalizing the design, all very odds and ends is time-consuming to make experiment preparation and operation, therefore is unfavorable for fully improving experiment teaching effect.
The purpose of this utility model is will provide a kind of can obviously distinguish electrolyte and nonelectrolyte with sound and light signal, and the typing instrument of three functions of electrolyte power, make the student go the observation experiment phenomenon more intuitively by sense organs such as eye, ears, make experimental phenomena lively more, novel, rich interesting, thereby further improve the demonstration effect of chemical experiment.
The purpose of this utility model is achieved in that
1. the major function of this tester is the test of solution conductivity, and it forms light signal display circuit by two groups of light emitting diodes, with integrated an of sound equipment and loudspeaker and minority electrons element composition sound signal display device.When connecting experimental circuit, the acousto-optic display system utilizes electrolyte ionization under certain condition to come from the different resistances that shown by ion when moving, according to different resistances, be converted into corresponding sound and light signal, utilize the linear relationship between them, reflect the relation of electrolytical ionization and solution conductivity intuitively, and the relation of free ion electric conductivity and solution temperature, and distinguished electrolyte and nonelectrolyte qualitatively, and electrolytical power.
2, primary element experiment: with the power supply in the solution conductivity property testing circuit, by the jack (A among Fig. 1
2), be transformed to the primary element power supply, utilize the electric current of chemical primary cell, the relation that voltage is directly proportional with the sound and light signal of indication mechanism, the sound and light signal of microscopic electrochemical reaction with macroscopic view vividly shown intuitively.
3, the tyndall effect electric light source is adorned a spotlight bead on this tester, and it can send the visible light beam that wavelength is 400～700 nanometers, when the discrete particles of the colloidal solution by 1～100 nanometer, scattering takes place, thereby produce tyndall effect.
This tester the key technical indexes:
1, sound output＞280 milliwatts
2, light news show peak power＞2.7 watt
3, tyndall effect electric light source power＞1.5 watt
Convergent pencil of rays wavelength coverage 400～700 nanometers
The utility model can be assembled the form that becomes conventional instrument with pocket (or desk-top) casing, as Fig. 3, also can show with the form of single loudspeaker, element is contained in the loudspeaker rear closure, as Fig. 4, and the latter more helps realizing creation purpose of the present utility model.
The concrete structure of utility model is provided by following embodiment and accompanying drawing.
Fig. 1, the 2nd, according to the three function acousto-optics that the utility model proposes show the ionic conduction tester and independently acousto-optic show the electrical schematic diagram of ionic conduction tester.The part that the with dashed lines frame rises among Fig. 2 is the audio communication display circuit figure that the utility model profile adopts the loudspeaker style.
Describe details and working condition in detail below in conjunction with Fig. 1 according to the concrete device that the utility model proposes.
The light news display system of electrolyte test of the present utility model and primary element experiment is by red, green two groups of light emitting diode (LED
1-5And LED
6-10) and integrated circuit (I, C), drive triode (BG
3) form.Red light emitting diodes group (LED
1-5) anodal through acousto-optic display system and Tyndall experiment switch (K
2) " 1 " end link to each other (LED with power cathode
1-5) negative pole link to each other with positive source through electrolyte solution by exploring electrode jack shell fragment.Green luminotron group (LED
6-10) positive pole is connected in and drives triode (BG
3) on the collector, its negative pole links to each other with positive source.The audio communication display system is made up of following element: the O/P end output audio signal of integrated circuit (I, C) is through complex pipe (BG
1, BG
2) amplify, (Y) changes the whistling signal into by loudspeaker.Distribute the part audio signal simultaneously through resistance (R
2) connection driving triode (BG
3) base stage, do weak electrolyte light news and show.Drive triode (BG
3) emitter and switch (K
2) " 1 " end links to each other." 1,2,8 " of integrated circuit (I, C) end respectively with switch (K
2) " 1 " end links to each other, " 4,5 " end connects oscillation resistance (R
1), " 3 " end is by jack (A
1) link to each other with positive source through electrolyte solution.Chemical primary cell experiment conversion jack (A
2) the shell utmost point connects positive source, shell fragment termination switch (K
2) " 0 " end, the arrow contact meets the switch (K of power cathode
3), supply voltage is 4.5V.Switch (K
2) " 0 " end link to each other another termination positive source of lamp with tyndall effect electric light source (4V) spotlight.Chemical primary cell experiment switch (K
1) " 1 " termination integrated circuit (I, C) " 3 " end, " 0 " termination power positive pole, " 2 " are empty to be cut.The instrument operation indicator is by luminotron LED
11And resistance R
3Connecting power positive cathode realizes.
Fig. 2 is the wiring diagram of electrolyte solution part of detecting, has just left out tyndall effect electric light source, switch (K
2) and jack (A
2).
Claims (3)
1, the utility model mainly relates to show simultaneously with sound and light signal in universities and middle schools's chemistry teaching a kind of experimental provision of solution conductivity and primary element experiment; The light news display system that it is characterized in that the electrolytic conductivity test and the primary element experiment of this experimental provision is by red, green two groups of light emitting diode (LED
1-5And LED
6-10) and integrated circuit (I, C), drive triode (BG
3) form red light emitting diodes group (LED
1-5) anodal through acousto-optic display system and tyndall effect experiment switch (K
2) " 1 " end link to each other (LED with power cathode
1-5) negative pole link to each other green luminotron group (LED by exploring electrode jack shell fragment with positive source through electrolyte solution
6-10) positive pole is connected in and drives triode (BG
3) on the collector, its negative pole links to each other with positive source; The audio communication display system is made up of following element; " O/P " output audio signal of integrated circuit (I, C) is through complex pipe (BG
1, BG
2) amplify, (Y) changes the whistling signal into by loudspeaker, distributes the part audio signal simultaneously through resistance (R
2) connection driving triode (BG
3) base stage, do weak electrolyte light news and show, drive triode (BG
3) emitter and switch (K
2) " 1 " end links to each other, " 1,2,8 " end of integrated circuit (I, C) respectively with switch (K
2) " 1 " end links to each other, " 4,5 " end connects oscillation resistance (R
1), " 3 " end is by jack (A
1) the shell utmost point connects positive source, shell fragment termination switch (K
2) " 0 " end, the arrow contact meets the switch (K of power cathode
3), supply voltage is 4.5V, switch (K
2) " 0 " end link to each other another termination positive source of lamp with tyndall effect electric light source (4V) spotlight; Chemical primary cell experiment switch (K
1) " 1 " termination integrated circuit (I, C) " 3 " end, " 0 " termination power positive pole, " 2 " are empty to be cut, and the instrument operation indicator is by luminotron LED
11And resistance R
3Connecting power positive cathode realizes.
2, device according to claim 1 is characterized in that the acousto-optic display system all passes through exploring electrode jack (A
1), constitute the loop by the two poles of the earth and the electrolyte solution of exploring electrode.
3,, it is characterized in that the utility model adopts two kinds of profiles, pocket (or desk-top) and horn profile independently according to claim 1,2 shown devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88205097 CN2042993U (en) | 1988-05-05 | 1988-05-05 | Three-function acousto-optical display ionic conduction test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88205097 CN2042993U (en) | 1988-05-05 | 1988-05-05 | Three-function acousto-optical display ionic conduction test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2042993U true CN2042993U (en) | 1989-08-16 |
Family
ID=4839566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88205097 Pending CN2042993U (en) | 1988-05-05 | 1988-05-05 | Three-function acousto-optical display ionic conduction test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2042993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3676606B1 (en) * | 2018-03-12 | 2021-11-03 | Consejo Superior De Investigaciones Cientificas | A device and a method for sensing the conductivity of a fluid |
-
1988
- 1988-05-05 CN CN 88205097 patent/CN2042993U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3676606B1 (en) * | 2018-03-12 | 2021-11-03 | Consejo Superior De Investigaciones Cientificas | A device and a method for sensing the conductivity of a fluid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned | ||
| WD01 | Invention patent application deemed withdrawn after publication |