CN202650358U - Temperature digital display type gas volume test system for Boyle's law demonstrator - Google Patents
Temperature digital display type gas volume test system for Boyle's law demonstrator Download PDFInfo
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- CN202650358U CN202650358U CN 201220339458 CN201220339458U CN202650358U CN 202650358 U CN202650358 U CN 202650358U CN 201220339458 CN201220339458 CN 201220339458 CN 201220339458 U CN201220339458 U CN 201220339458U CN 202650358 U CN202650358 U CN 202650358U
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- temperature
- digital display
- temperature digital
- volume test
- gas volume
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- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 13
- 238000003860 storage Methods 0.000 claims abstract description 30
- 239000012780 transparent material Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 23
- 230000006698 induction Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient 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
- 239000000047 product Substances 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 gas volume test system for a Boyle's law demonstrator. The temperature digital display type gas volume test system for Boyle's law demonstrator comprises a gas storage column made of a transparent material, a connecting pipe, an inlet/outlet pipe, and a scale plate. The connecting pipe and the inlet/outlet pipe are respectively connected with two sides of a lower part of the gas storage column. The inlet/outlet pipe is provided with an inlet/outlet valve. The scale plate is disposed on a side of the gas storage column. A temperature digital display system is connected on a top of the gas storage column. The temperature digital display system comprises a temperature sensor, a microprocessor, and a temperature display screen. The temperature sensor is sealed and fixed on the top of the gas storage column. The temperature sensor and the temperature display screen are respectively connected with the microprocessor through data lines. The temperature digital display type gas volume test system is reasonable in design, simple in structure, good in specificity, and low in experimental error, and has very good visibility, thereby fully improving teaching effect. The temperature digital display type gas volume test system has good practicality and 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 gas volume test macro of Boyle 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 " Bo Yier law ", need to probe into lecture experiment.
Probing into the Bo Yier 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 Bo Yier 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 is in order to solve weak point of the prior art, provides that a kind of experimental precision is high, visibility strong, helps to promote the temperature digital-display type gas volume test macro of the Boyle law demonstration device of teaching efficiency.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the temperature digital-display type gas volume test macro of Boyle law demonstration device, comprise air storage post, connecting pipe, intake-discharge pipe and the scaleplate made by transparent material, connecting pipe is connected with intake-discharge pipe with the both sides, bottom of air storage post and is connected, intake-discharge pipe is provided with water-inflow and drain valve, scaleplate is located at air storage post sidepiece, and the air storage column top is connected with the temperature digital display system.
Described temperature digital display system comprises temperature sensor, microprocessor and temperature display, and temperature sensor sealing is fixed on the top of air storage post, and temperature sensor is connected with microprocessor with temperature display and is connected by data line.
Adopt technique scheme, the other end of connecting pipe transmits display system with the pressure of Boyle law demonstration device and is connected.Pressure transmits display system and comprises hydraulic pressure chamber, pointer tensimeter, safety valve and air induction conduit, pointer tensimeter and safety valve are located at the hydraulic pressure chamber top, the inner mouth of pipe of air induction conduit is positioned at the hydraulic pressure chamber internal upper part, air induction conduit is provided with the gas admittance valve that is positioned at the hydraulic pressure chamber outside, and connecting pipe is connected with the hydraulic pressure chamber bottom.
When demonstrate in the classroom, open first water-inflow and drain valve, in the air storage post and by connecting pipe, in hydraulic pressure chamber, be filled with a certain amount of water, then close water-inflow and drain valve, then open gas admittance valve, by air induction conduit charged pressure gas in the hydraulic pressure chamber, pressed gas is pressed into the water in the hydraulic pressure chamber in the air storage post by connecting pipe, tensimeter demonstrates pressure value, and pressure is larger, and the volume of the air column on air storage post top is less.The temperature signal that temperature sensor will collect in the air column is transported to microprocessor, microprocessor is converted to digital signal with temperature signal and demonstrates actual temp numerical value at temperature display, thereby certain gas of demonstration certain mass, in the situation that temperature-resistant, pressure P and volume V are inversely proportional to.Do lecture experiment with the utility model, get arbitrarily 10 groups of data and calculate, average error is less than 1.0%, and temperature-resistant value is not more than 0.1 ℃.After demonstration finishes, open water-inflow and drain valve, the water discharge is got final product.Safety valve plays the effect of avoiding the excessive damage parts of pressure.
The utility model is reasonable in design, simple in structure, and specificity is strong, and experimental error is little, and has extremely strong visibility, has fully improved teaching efficiency, and is practical, is easy to apply.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the temperature digital-display type gas volume test macro of Boyle law demonstration device of the present utility model, comprise and be arranged on air storage post 7, connecting pipe 11, intake-discharge pipe 8 and the scaleplate 9 of being made by transparent material on the base 1, connecting pipe 11 is connected with intake-discharge pipe and is connected with the both sides, bottom of air storage post 7 respectively, intake-discharge pipe 8 is provided with water-inflow and drain valve 10, scaleplate 9 is located at air storage post 7 sidepieces, and air storage post 7 tops are connected with the temperature digital display system.
The temperature digital display system comprises temperature sensor 13, microprocessor 14 and temperature display 15, and temperature sensor 13 sealing is fixed on the top of air storage post 7, and temperature sensor 13 is connected with temperature display respectively and is connected by data line with microprocessor 14.
The Boyle law demonstration device comprises that also pressure transmits display system, pressure transmits display system and comprises and be arranged on hydraulic pressure chamber 2, pointer tensimeter 3, safety valve 4 and the air induction conduit 5 of being made by transparent material on the base 1, pointer tensimeter 3 and safety valve 4 are located at hydraulic pressure chamber 2 tops, the inner mouth of pipe of air induction conduit 5 is positioned at hydraulic pressure chamber 2 internal upper parts, air induction conduit 5 is provided with the gas admittance valve 6 that is positioned at hydraulic pressure chamber 2 outsides, and connecting pipe 11 is connected with hydraulic pressure chamber 2 bottoms.
Air storage post 7 transparent material manufacturing, significant height is not less than 400mm, and wall thickness is not less than 3mm; Visibility is higher, and gas volume changes test accurately.
Scaleplate 9 is close to air storage post 7 both sides, 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.Hydraulic pressure chamber 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.
When demonstrate in the classroom, open first water-inflow and drain valve 10, in air storage post 7 and by connecting pipe 11, in hydraulic pressure chamber 2, be filled with a certain amount of water 12 by intake-discharge pipe 8, then close water-inflow and drain valve 10, then open gas admittance valve 6, by air induction conduit 5 to hydraulic pressure chamber 2 interior charged pressure gases, pressed gas is pressed into the water 12 in the hydraulic pressure chamber 2 in the air storage post 7 by connecting pipe 11, water column in the air storage post 7 rises, the air column volume reduces, pointer tensimeter 3 demonstrates pressure value, and pressure is larger, and the volume of the air column on air storage post 7 tops is less.The temperature signal that temperature sensor 13 will collect in the air column is transported to microprocessor 14, microprocessor 14 is converted to digital signal with temperature signal and demonstrates actual temp numerical value at temperature display 15, thereby certain gas of demonstration certain mass, in the situation that temperature-resistant, pressure P and volume V are inversely proportional to.After demonstration finishes, open water-inflow and drain valve 10, the water discharge is got final product.
Claims (2)
1. the temperature digital-display type gas volume test macro of Boyle law demonstration device, it is characterized in that: comprise air storage post, connecting pipe, intake-discharge pipe and the scaleplate made by transparent material, connecting pipe is connected with intake-discharge pipe with the both sides, bottom of air storage post and is connected, intake-discharge pipe is provided with water-inflow and drain valve, scaleplate is located at air storage post sidepiece, and the air storage column top is connected with the temperature digital display system.
2. the temperature digital-display type gas volume test macro of Boyle law demonstration device according to claim 1, it is characterized in that: described temperature digital display system comprises temperature sensor, microprocessor and temperature display, temperature sensor sealing is fixed on the top of air storage post, and temperature sensor is connected with microprocessor with temperature display and is connected by data line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339458 CN202650358U (en) | 2012-07-13 | 2012-07-13 | Temperature digital display type gas volume test system for Boyle's law demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339458 CN202650358U (en) | 2012-07-13 | 2012-07-13 | Temperature digital display type gas volume test system for Boyle's law demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650358U true CN202650358U (en) | 2013-01-02 |
Family
ID=47419428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339458 Expired - Fee Related CN202650358U (en) | 2012-07-13 | 2012-07-13 | Temperature digital display type gas volume test system for Boyle's law demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650358U (en) |
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2012
- 2012-07-13 CN CN 201220339458 patent/CN202650358U/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: 20130102 Termination date: 20130713 |