CN202662193U - Gas volume test system of Gay-Lussac law demonstrator - Google Patents
Gas volume test system of Gay-Lussac law demonstrator Download PDFInfo
- Publication number
- CN202662193U CN202662193U CN 201220342716 CN201220342716U CN202662193U CN 202662193 U CN202662193 U CN 202662193U CN 201220342716 CN201220342716 CN 201220342716 CN 201220342716 U CN201220342716 U CN 201220342716U CN 202662193 U CN202662193 U CN 202662193U
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- gas
- conduit
- gay
- test system
- gas volume
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- 238000012360 testing method Methods 0.000 title claims abstract description 13
- 239000012780 transparent material Substances 0.000 claims abstract description 9
- 238000013461 design Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 5
- 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
- 238000000034 method 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
- 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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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model relates to a gas volume test system of a Gay-Lussac law demonstrator. The gas volume test system comprises a base, wherein a display guide tube which is made from a transparent material and is provided with a top opening is vertically arranged on the base, a graduated plate which is used for marking the graduations of the display guide tube is arranged at a side part of the display guide tube, and a connecting tube is arranged at the lower part of the display guide tube. According to the gas volume test system of the Gay-Lussac law demonstrator, the design is reasonable, the structure is simple, the specificity is strong, the temperature T is proportional to the volume V under the condition that the suffered pressure intensity is invariable when some gas of a certain mass is demonstrated, the visibility is extremely strong, and the effect is obvious and stable, so that the teaching effect is sufficiently improved, the practicability is strong, and the popularization and application are facilitated.
Description
Technical field
The utility model relates to a kind of instruments used for education, particularly a kind of gas volume test macro of 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 gas volume test macro of the gay lussacs law demonstration device that a kind of specificity is strong, visibility is high, degree of accuracy is high 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: the gas volume test macro of gay lussacs law demonstration device, comprise base, vertically be provided with on the base by transparent material and make and the demonstration conduit of open top, show that the conduit sidepiece is provided with the scaleplate that shows the conduit scale for indicating, show that the bottom of conduit is provided with a connecting pipe.
Adopt technique scheme, the gay lussacs law demonstration device also comprises pressure transmission system and the temperature digital display system that is located on the base;
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 and little electric fan in the gas dome, little electric fan is positioned at electric heater top, the gas dome top be provided with respectively with electric heater be connected the binding post that electric fan is connected; The gas dome bottom is communicated with showing the conduit bottom by 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 and little electric fan work, little electric fan mixes the cold and hot air in the gas dome, 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 constant situation of suffered pressure, temperature T is directly proportional with volume V, and 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 constant situation of suffered pressure, 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, the gas volume test macro of gay lussacs law demonstration device, comprise base 1, vertically be provided with on the base 1 by transparent material and make and the demonstration conduit 10 of 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 provided with a connecting pipe 12.
The gay lussacs law demonstration device also comprises pressure transmission system and the temperature digital display system that is located on the base.
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 and little electric fan 8 in the gas dome 2, little electric fan 8 is positioned at electric heater 7 tops, gas dome 2 tops be provided with respectively with electric heater 7 be connected the binding post 9 that electric fan 8 is connected; Gas dome 2 bottoms are communicated with showing conduit 10 bottoms by 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 and 8 work of little electric fan, little electric fan 8 mixes the cold and hot air in the gas dome 2, 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 constant situation of suffered pressure, temperature T is directly proportional with volume V, and average error is less than 1.0%.
Claims (1)
1. the gas volume test macro of gay lussacs law demonstration device, it is characterized in that: comprise base, vertically be provided with on the base by transparent material and make and the demonstration conduit of open top, show that the conduit sidepiece is provided with the scaleplate that shows the conduit scale for indicating, show that the bottom of conduit is provided with a connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342716 CN202662193U (en) | 2012-07-16 | 2012-07-16 | Gas volume test system of Gay-Lussac law demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342716 CN202662193U (en) | 2012-07-16 | 2012-07-16 | Gas volume test system of Gay-Lussac law demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662193U true CN202662193U (en) | 2013-01-09 |
Family
ID=47457081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220342716 Expired - Fee Related CN202662193U (en) | 2012-07-16 | 2012-07-16 | Gas volume test system of Gay-Lussac law demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662193U (en) |
-
2012
- 2012-07-16 CN CN 201220342716 patent/CN202662193U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20130716 |