CN202650354U - Temperature digital display Boyle's law demonstration instrument with pressure gauge - Google Patents
Temperature digital display Boyle's law demonstration instrument with pressure gauge Download PDFInfo
- Publication number
- CN202650354U CN202650354U CN 201220339443 CN201220339443U CN202650354U CN 202650354 U CN202650354 U CN 202650354U CN 201220339443 CN201220339443 CN 201220339443 CN 201220339443 U CN201220339443 U CN 201220339443U CN 202650354 U CN202650354 U CN 202650354U
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- hydraulic pressure
- temperature
- pressure chamber
- air storage
- gas volume
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- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims description 27
- 230000006698 induction Effects 0.000 claims description 11
- 239000012780 transparent material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 25
- 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
- 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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- Testing Or Calibration Of Command Recording Devices (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A temperature digital display Boyle's law demonstration instrument with a pressure gauge comprises a base, wherein a pressure transmission and display system and a gas volume test system are arranged on the base; the pressure transmission and display system comprises a hydraulic pressure chamber, a pointer pressure gauge, a safety valve and an air intake conduit; the pointer pressure gauge and the safety valve are arranged at the top of the hydraulic chamber; the inner conduit port of the air intake conduit is positioned at the upper part of the hydraulic chamber; an air inlet valve located outside the hydraulic chamber is arranged on the air intake conduit; the lower part of the hydraulic chamber is communicated with the gas volume test system via a connecting pipe; and the gas volume test system is connected with a temperature digital display system arranged on the base. The utility model has advantages of reasonable design, simplicity in structure, strong specificity, less test error, extreme strong visibility, full improvement on teaching effect, strong practicability and easiness in popularization and application.
Description
Technical field
The utility model relates to a kind of instruments used for education, particularly a kind of band tensimeter temperature digital-display type 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 Boyle law demonstration device of teaching efficiency.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: band tensimeter temperature digital-display type Boyle law demonstration device, comprise base, base is provided with pressure and transmits display system and gas volume testing system, described pressure transmits display system and comprises hydraulic pressure chamber, the 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, the hydraulic pressure chamber bottom is communicated with the gas volume test macro by connecting pipe, and the gas volume test macro is connected with the temperature digital display system that is located on the base.
Described gas volume test macro comprises air storage post, intake-discharge pipe and scaleplate, and intake-discharge pipe is connected with the bottom of air storage post, and intake-discharge pipe is provided with water-inflow and drain valve, and scaleplate is located at air storage post sidepiece, and air storage post bottom is connected with an end of connecting pipe; Described hydraulic pressure chamber and air storage post are all made by transparent material.
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, 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, and tensimeter demonstrates pressure value, 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, the rule that 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, band tensimeter temperature digital-display type Boyle law demonstration device of the present utility model, comprise base 1, base 1 is provided with pressure and transmits display system and gas volume testing system, pressure transmits display system and comprises hydraulic pressure chamber 2, pointer tensimeter 3, safety valve 4 and air induction conduit 5, 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 the gas volume test macro is connected with the temperature digital display system that is located on the base 1.
The gas volume test macro comprises air storage post 7, intake-discharge pipe 8 and scaleplate 9, intake-discharge pipe 8 is connected with the bottom of air storage post 7, intake-discharge pipe 8 is provided with water-inflow and drain valve 10, and scaleplate 9 is located at air storage post 7 sidepieces, and air storage post 7 bottoms are communicated with by a joint connecting pipe 11 hydraulic pressure chambers 2 bottoms.
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.
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.
Pointer tensimeter 3 ranges are 0-0.25Mpa, scale division value 0.01Mpa, and 4.0 grades of precision, the error of indication should be not more than 1 scale division value.
Gas admittance valve 6, safety valve 4, water-inflow and drain valve 10 all should adopt metallic article, and gas admittance valve 6 and water-inflow and drain valve 10 have direction signs, and automatic release of pressure when the pressure in the safety valve 4 control hydraulic pressure chambers 2 reaches 0.20Mpa guarantees experiment safety.
Temperature display 15 directly shows the temperature in the experimentation, demonstrates fully " in the situation that temperature-resistant, pressure P and volume V are inversely proportional to ".This is that other similar experimental provisions are unexistent, also is difficult to accomplish.
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 (3)
1. be with tensimeter temperature digital-display type Boyle law demonstration device, comprise base, base is provided with pressure and transmits display system and gas volume testing system, it is characterized in that: described pressure transmits display system and comprises hydraulic pressure chamber, the 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, the hydraulic pressure chamber bottom is communicated with the gas volume test macro by connecting pipe, and the gas volume test macro is connected with the temperature digital display system that is located on the base.
2. band tensimeter temperature digital-display type Boyle law demonstration device according to claim 1, it is characterized in that: described gas volume test macro comprises air storage post, intake-discharge pipe and scaleplate, intake-discharge pipe is connected with the bottom of air storage post, intake-discharge pipe is provided with water-inflow and drain valve, scaleplate is located at air storage post sidepiece, and air storage post bottom is connected with an end of connecting pipe; Described hydraulic pressure chamber and air storage post are all made by transparent material.
3. band tensimeter temperature digital-display type Boyle law demonstration device according to claim 2, 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 201220339443 CN202650354U (en) | 2012-07-13 | 2012-07-13 | Temperature digital display Boyle's law demonstration instrument with pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339443 CN202650354U (en) | 2012-07-13 | 2012-07-13 | Temperature digital display Boyle's law demonstration instrument with pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650354U true CN202650354U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339443 Expired - Fee Related CN202650354U (en) | 2012-07-13 | 2012-07-13 | Temperature digital display Boyle's law demonstration instrument with pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650354U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544869A (en) * | 2013-07-23 | 2014-01-29 | 湖州文思必得科教仪器有限公司 | Varying-temperature Boyle's Law demonstrator |
| CN104361790A (en) * | 2014-12-09 | 2015-02-18 | 罗春春 | Demonstrator for verifying ideal gas state equation |
-
2012
- 2012-07-13 CN CN 201220339443 patent/CN202650354U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544869A (en) * | 2013-07-23 | 2014-01-29 | 湖州文思必得科教仪器有限公司 | Varying-temperature Boyle's Law demonstrator |
| CN104361790A (en) * | 2014-12-09 | 2015-02-18 | 罗春春 | Demonstrator for verifying ideal gas state equation |
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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 |