CN202662195U - Temperature digital display type Gay-Lussac law demonstrator - Google Patents
Temperature digital display type Gay-Lussac law demonstrator Download PDFInfo
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- CN202662195U CN202662195U CN 201220342720 CN201220342720U CN202662195U CN 202662195 U CN202662195 U CN 202662195U CN 201220342720 CN201220342720 CN 201220342720 CN 201220342720 U CN201220342720 U CN 201220342720U CN 202662195 U CN202662195 U CN 202662195U
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- gas
- temperature digital
- gas dome
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- temperature
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- 238000012360 testing method Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000012780 transparent material Substances 0.000 claims description 9
- 238000013461 design Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000002474 experimental method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- KYKQHSMYWLWROM-UHFFFAOYSA-N ac1l4yjn Chemical compound [Hg].[Hg] KYKQHSMYWLWROM-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The utility model discloses a temperature digital display type Gay-Lussac law demonstrator comprising a base, wherein a pressure transmission system, a gas volume test system and a temperature digital display system are arranged on the base. According to the temperature digital display type Gay-Lussac law demonstrator, the design is reasonable, the structure is simple, the specificity is strong, the demonstrator can be used for displaying certain gas with fixed quality, the temperature T and volume V are in direct proportion under the situation that the pressure applied on the gas is not changed, the visibility is very strong, the effect is obvious and stable, the teaching effect is sufficiently improved, the practicality is strong, and the temperature digital display type Gay-Lussac law demonstrator is easy to popularize and apply.
Description
Technical field
The utility model relates to a kind of instruments used for education, particularly a kind of temperature digital-display type gay lussacs law demonstration device.
Background technology
Take as an elective course in the 3-3 volume at newly organized regular senior secondary school curricular standard experiment textbook " physics ", when lecturing lid " gay lussacs law ", need to probe into lecture experiment.
Probing into gay lussacs law is the senior middle school physics teaching content, still, never has since the establishment of the nation instrumentation, in the outfit instruments used for education catalogue before the Ministry of Education, adopts " gas law demonstration device " to do experiment.Because " gas law demonstration device " specificity is not strong, experimental error is larger, and visibility is not high, has a strong impact on teaching efficiency.When the Ministry of Education in 2010 promulgates new regular senior secondary school science teaching apparatus preparation standard, increased gay lussacs law demonstration device project newly.This teaching instrumentation is the domestic approved product that there is no at present.
The utility model content
The utility model provides the temperature digital-display type gay lussacs law that a kind of specificity is strong, visibility is high, degree of accuracy is high demonstration device in order to solve weak point of the prior art.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: temperature digital-display type gay lussacs law demonstration device, comprise base, and base is provided with pressure transmission system, gas volume test macro and temperature digital display system;
The pressure transmission system comprises the gas dome of being made by transparent material, the gas dome upper portion side wall is provided with air inlet-outlet pipe, the gas dome lower sides is provided with intake-discharge pipe, air inlet-outlet pipe is provided with air inlet and exhaust valve, intake-discharge pipe is provided with water-inflow and drain valve, be provided with electric heater in the gas dome, the gas dome top is provided with the binding post that is connected with electric heater respectively;
The gas volume test macro comprises demonstration conduit that made by transparent material and open top, shows that the conduit sidepiece is provided with the scaleplate that shows the conduit scale for indicating, and shows that the bottom of conduit is communicated with the bottom of gas dome by a connecting pipe;
The temperature digital display system comprises temperature sensor, microprocessor and temperature digital-display screen, and temperature sensor is located in the gas dome and is positioned at the electric heater below, and temperature sensor is connected with temperature digital-display respectively and is connected with output terminal with the input end of microprocessor.
When demonstrate in the classroom, open water-inflow and drain valve and air inlet and exhaust valve, in gas dome, be filled with a certain amount of water by intake-discharge pipe, water in the gas dome enters into by connecting pipe and shows in the conduit, this moment in the gas dome the water surface and show that the interior water surface elevation of conduit is identical, then close air inlet and exhaust valve and water-inflow and drain valve, then the air heat in the gas dome is expanded in electric heater work, water in the gas push gas dome of expanded by heating enters into by connecting pipe and shows in the conduit, water column raises within showing conduit, showing that according to water column conduit is by the height that is elevated between the initial position, can calculate the volume of gas expansion in the gas dome, the temperature signal that the simultaneous temperature sensor will collect the air storage room air is transported to microprocessor, and microprocessor is converted to digital signal with temperature signal and goes out actual temp numerical value in the temperature digital-display screen display.According to the numerical value that test is arrived, get arbitrarily 10 groups of data and calculate, can determine certain gas of certain mass, in the situation that suffered pressure is constant, temperature T is directly proportional with volume V, average error is less than 1.0%.
The utility model is reasonable in design, simple in structure, specificity is strong, certain gas of demonstration certain mass, in the situation that suffered pressure is constant, the relation that temperature T is directly proportional with volume V, have extremely strong visibility, successful and stable has fully improved teaching efficiency, practical, be easy to apply.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, temperature digital-display type gay lussacs law demonstration device comprises base 1, and base 1 is provided with pressure transmission system, gas volume test macro and temperature digital display system;
The pressure transmission system comprises the gas dome 2 of being made by transparent material, gas dome 2 upper portion side wall are provided with air inlet-outlet pipe 3, gas dome 2 lower sides are provided with intake-discharge pipe 4, air inlet-outlet pipe 3 is provided with air inlet and exhaust valve 5, intake-discharge pipe 4 is provided with water-inflow and drain valve 6, be provided with electric heater 7 in the gas dome 2, gas dome 2 tops are provided with the binding post 9 that is connected with electric heater 7;
The gas volume test macro comprises demonstration conduit 10 that made by transparent material and open top, show that conduit 10 sidepieces are provided with the scaleplate 11 that shows conduit 10 scales for indicating, show that the bottom of conduit 10 is communicated with the bottom of gas dome 2 by a connecting pipe 12; Show conduit 10 open tops, guarantee that gas dome 2 interior gas pressure intensities keep constant.
The temperature digital display system comprises temperature sensor 13, microprocessor 14 and temperature digital-display screen 15, temperature sensor 13 is located in the gas dome 2 and is positioned at electric heater 7 belows, and temperature sensor 13 is connected 15 and is connected with output terminal with the input end of microprocessor 14 respectively with temperature digital-display.
Scaleplate 11 is close to demonstration conduit 10 both sides that transparent material is made, and changes calibration 100 five equilibriums by gas volume scale is set from top to bottom, and per 10 five equilibriums indicate numerical value, reads conveniently calculating simplicity.
The hydraulic pressure transfer mode is adopted in the pressure transmission, and the air storage post that has overcome existing " gas law demonstration device " is shorter, uses piston pressurization, and frictional heat affects gas temperature to be changed, and causes the larger defective of experimental error.Gas dome 2 of the present utility model is used liquid pressing by the transparent material manufacturing, and the pressure transmittance process is high-visible, and control is steady, and value is accurate.Useful mercury (mercury) post shows volume change in the traditional experiment device, and the utility model adopts water as medium, more safety and environmental protection.
When demonstrate in the classroom, open water-inflow and drain valve 6 and air inlet and exhaust valve 5, in gas dome 2, be filled with a certain amount of water by intake-discharge pipe 4, water in the gas dome 2 enters into by connecting pipe 12 and shows in the conduit 10, the water surface in this moment gas dome 2 and show that the interior water surface elevation of conduit 10 is identical, then close air inlet and exhaust valve 5 and water-inflow and drain valve 6, then the air heat in the gas dome 2 is expanded in electric heater 7 work, water in the gas push gas dome 2 of expanded by heating enters into by connecting pipe 12 and shows in the conduit 10, water column is showing conduit 10 interior risings, showing that according to water column conduit 10 is by the height that is elevated between the initial position, can calculate the volume of gas dome 2 interior gas expansions, the temperature signal that simultaneous temperature sensor 13 will collect gas dome 2 interior air is transported to microprocessor 14, and microprocessor 14 is converted to digital signal with temperature signal and demonstrates actual temp numerical value at temperature digital-display screen 15.According to the numerical value that test is arrived, get arbitrarily 10 groups of data and calculate, can determine certain gas of certain mass, in the situation that suffered pressure is constant, temperature T is directly proportional with volume V, average error is less than 1.0%.
Claims (1)
1. temperature digital-display type gay lussacs law demonstration device, it is characterized in that: comprise base, base is provided with pressure transmission system, gas volume test macro and temperature digital display system;
The pressure transmission system comprises the gas dome of being made by transparent material, the gas dome upper portion side wall is provided with air inlet-outlet pipe, the gas dome lower sides is provided with intake-discharge pipe, air inlet-outlet pipe is provided with air inlet and exhaust valve, intake-discharge pipe is provided with water-inflow and drain valve, be provided with electric heater in the gas dome, the gas dome top is provided with the binding post that is connected with electric heater respectively;
The gas volume test macro comprises demonstration conduit that made by transparent material and open top, shows that the conduit sidepiece is provided with the scaleplate that shows the conduit scale for indicating, and shows that the bottom of conduit is communicated with the bottom of gas dome by a connecting pipe;
The temperature digital display system comprises temperature sensor, microprocessor and temperature digital-display screen, and temperature sensor is located in the gas dome and is positioned at the electric heater below, and temperature sensor is connected with temperature digital-display respectively and is connected with output terminal with the input end of microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342720 CN202662195U (en) | 2012-07-16 | 2012-07-16 | Temperature digital display type Gay-Lussac law demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342720 CN202662195U (en) | 2012-07-16 | 2012-07-16 | Temperature digital display type Gay-Lussac law demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662195U true CN202662195U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220342720 Expired - Fee Related CN202662195U (en) | 2012-07-16 | 2012-07-16 | Temperature digital display type Gay-Lussac law demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662195U (en) |
-
2012
- 2012-07-16 CN CN 201220342720 patent/CN202662195U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20140716 |
|
| EXPY | Termination of patent right or utility model |