CN202473045U - Ohm's law demonstration device - Google Patents
Ohm's law demonstration device Download PDFInfo
- Publication number
- CN202473045U CN202473045U CN2012202615721U CN201220261572U CN202473045U CN 202473045 U CN202473045 U CN 202473045U CN 2012202615721 U CN2012202615721 U CN 2012202615721U CN 201220261572 U CN201220261572 U CN 201220261572U CN 202473045 U CN202473045 U CN 202473045U
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- terminal
- ohm
- electrohydraulic
- demonstration device
- liquid passage
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Abstract
An ohm's law demonstration device adopts the technical scheme that the ohm's law demonstration device comprises two sealed electrohydraulic cylinders with sealing covers; an electrode wiring terminal, a probe and a gas pore with a plug cover are mounted on each sealing cover; an electrohydraulic channel communicating the inner chambers of the two sealed electrohydraulic cylinders is arranged between the two electrohydraulic cylinders; a ball valve for regulating the flow rate is arranged on the electrohydraulic channel; one electrode wiring terminals is a positive terminal and the other electrode wiring terminal is a negative terminal; the positive terminal and the negative terminal are connected through a conducting wire to form a closed loop; and a bulb, a sliding rheostat, an ammeter, a voltmeter and a single-pole switch are connected to the loop. The ohm's law demonstration device has the benefits of simple structure, reasonable design, convenience in operation and more obvious and direct demonstration effect.
Description
Technical field
The utility model is a kind of Ohm law apparatus for demonstrating.
Background technology
Indispensable device in the Ohm law apparatus for demonstrating in the physics experiment teaching has adjustable internal resistance battery, bulb, lead, switch etc. at present.The adjustable internal resistance battery that uses in the current experiment is the semiclossed lead accumulator, and electrolytic solution overflows the both dangerous normal use that also influences battery easily in mobile and use.In addition, when present adjustable internal resistance battery used, complicated operation was not easy to grasp.
Summary of the invention
The utility model provides a kind of simple in structure, reasonable in design, easy to operate, more obvious directly technical scheme of Ohm law apparatus for demonstrating of demonstration effect to the deficiency of prior art.
The utility model is realized through following technical measures: a kind of Ohm law apparatus for demonstrating; Comprise two sealed electrical fluid cylinders that have gland bonnet; Electrode terminal, probe are installed on the said gland bonnet and have the pore of gag; Be provided with the electric liquid passage that is communicated with two sealed electrical fluid cylinder inner chambers between said two electric fluid cylinders; Said electric liquid passage is provided with the ball valve of regulating flow, and one of them electrode terminal is a positive terminal, and another electrode terminal is a negative terminal; Said positive terminal and negative terminal are connected to form the closed-loop path through lead, are connected with bulb, slide rheostat, reometer, voltage table and single-pole switch on the said loop.
The concrete characteristics of the utility model also have, and above-mentioned sealed electrical fluid cylinder and electric liquid passage all are fixed on the base.
The beneficial effect of the utility model is: it is simple in structure, reasonable in design, utilizes ball valve to realize channel capacity control, and easy to operate, demonstration effect is more obvious direct.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure, 1, electric fluid cylinder, 2, gland bonnet, 3, probe, 4, gag, 5, electric liquid passage; 6, ball valve, 7, positive terminal, 8, negative terminal, 9, lead, 10, bulb; 11, slide rheostat, 12, reometer, 13, voltage table, 14, single-pole switch, 15, base.
Embodiment
For clearly demonstrating the technical characterstic of this programme, through an embodiment, this programme is set forth below.
A kind of Ohm law apparatus for demonstrating; Comprise two sealed electrical fluid cylinders 1 that have gland bonnet 2; Electrode terminal, probe 3 are installed on the said gland bonnet 2 and have the pore of gag 4, be provided with the electric liquid passage 5 that is communicated with two sealed electrical fluid cylinder inner chambers between said two electric fluid cylinders 1, said electric liquid passage 5 is provided with the ball valve 6 of regulating flow; One of them electrode terminal is a positive terminal 7; Another electrode terminal is a negative terminal 8, and said positive terminal 7 is connected to form the closed-loop path with negative terminal 8 through lead 9, is connected with bulb 10, slide rheostat 11, reometer 12, voltage table 13 and single-pole switch 14 on the said loop.Sealed electrical fluid cylinder 1 all is fixed on the base 15 with electric liquid passage 5.
The utility model can pass through or adopt existing techniques in realizing without the technical characterictic of describing; Repeat no more at this; Certainly, above-mentioned explanation is not to be the restriction to the utility model, and the utility model also is not limited in above-mentioned giving an example; Variation, remodeling, interpolation or replacement that those skilled in the art are made in the essential scope of the utility model also should belong to the protection domain of the utility model.
Claims (2)
1. Ohm law apparatus for demonstrating; It is characterized in that, comprise two sealed electrical fluid cylinders that have gland bonnet, electrode terminal, probe are installed on the said gland bonnet and have the pore of gag; Be provided with the electric liquid passage that is communicated with two sealed electrical fluid cylinder inner chambers between said two electric fluid cylinders; Said electric liquid passage is provided with the ball valve of regulating flow, and one of them electrode terminal is a positive terminal, and another electrode terminal is a negative terminal; Said positive terminal and negative terminal are connected to form the closed-loop path through lead, are connected with bulb, slide rheostat, reometer, voltage table and single-pole switch on the said loop.
2. Ohm law apparatus for demonstrating according to claim 1 is characterized in that, said sealed electrical fluid cylinder and electric liquid passage all are fixed on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202615721U CN202473045U (en) | 2012-06-05 | 2012-06-05 | Ohm's law demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202615721U CN202473045U (en) | 2012-06-05 | 2012-06-05 | Ohm's law demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473045U true CN202473045U (en) | 2012-10-03 |
Family
ID=46921189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202615721U Expired - Fee Related CN202473045U (en) | 2012-06-05 | 2012-06-05 | Ohm's law demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473045U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107545814A (en) * | 2017-09-30 | 2018-01-05 | 成都众孚理想科技有限公司 | A kind of teaching easy to use metallic conduction performance apparatus for demonstrating |
| CN111312042A (en) * | 2020-03-26 | 2020-06-19 | 崔菡 | Ohm law electricity experimental equipment |
-
2012
- 2012-06-05 CN CN2012202615721U patent/CN202473045U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107545814A (en) * | 2017-09-30 | 2018-01-05 | 成都众孚理想科技有限公司 | A kind of teaching easy to use metallic conduction performance apparatus for demonstrating |
| CN111312042A (en) * | 2020-03-26 | 2020-06-19 | 崔菡 | Ohm law electricity experimental equipment |
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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: 20121003 Termination date: 20140605 |