CN2876745Y - Atmosphere meter - Google Patents
Atmosphere meter Download PDFInfo
- Publication number
- CN2876745Y CN2876745Y CN 200520133885 CN200520133885U CN2876745Y CN 2876745 Y CN2876745 Y CN 2876745Y CN 200520133885 CN200520133885 CN 200520133885 CN 200520133885 U CN200520133885 U CN 200520133885U CN 2876745 Y CN2876745 Y CN 2876745Y
- Authority
- CN
- China
- Prior art keywords
- bottle
- glass tube
- water
- thermos
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
An atmosphere meter which takes water as working substance. It keeps some water and air inside a thermos bottle. A thermostatic control device is equipped outside the bottle. The water inside the bottle is communicated with a vertical glass tube outside the bottle. Another end of the glass tube is communicated with the air. Because the gas inside the bottle has no change in its volume, temperature and pressure, according to the principle of communicating vessels, the sum of atmospheric pressure and the pressure caused by fluid column inside the glass tube is a definite value. With the change of atmospheric pressure, the height of water column inside the glass tube changes. The height of water column can display the real-time value of atmospheric pressure.
Description
Affiliated technical field
The utility model is a kind of atmosphere measuring device, and it as working medium, can accurately show atmospheric pressure and variation thereof with water.
Background technology
At present, most popular barometer is mercury slug barometer and aneroid pressure meter, mercury slug barometric surveying precision height, but in production and the use mercury pollution is arranged.The aneroid pressure meter complex structure.The barometer that water workmanship matter is also arranged, but or volume is very big, reach tens meters high, or the unresolved good very big problem of its temperature influence, and be difficult to drop into practical application.
Summary of the invention
In order to overcome being not enough to and the defective of other vapour pressure meters of mercury slug barometer mercury pollution, the utility model provides a kind of large barometer, about one meter of this barometric height, and as working medium, simple in structure with water, the measuring accuracy height is not subjected to the influence of environment temperature.
The technical scheme that its technical matters that solves the utility model adopts is: be sealed with a certain amount of water and air in thermos, water communicates by connecting pipe and the outer VERTICAL TUBE of bottle, and the other end of VERTICAL TUBE communicates with atmosphere.Thermos and pipe all place in the cuboid box, have thermostatically-controlled equipment to make in the case and keep constant temperature in the case.When the temperature inside the box at design temperature up and down during fuctuation within a narrow range, the bottle internal-external temperature difference is very little because temperature is quite constant in the insulation effect bottle of thermos, gas volume and pressure are constant in it.Equate with a bottle interior gas pressure intensity with the atmospheric pressure sum by the law of connected vessels pressure that fluid column produces in the glass tube as can be known, be certain value.Along with water column in the atmospheric variation glass tube just changes, water column just can demonstrate atmospheric value in real time.
The beneficial effects of the utility model are, not only can measure atmospheric value exactly but also do not have mercury pollution as working medium with water, and are simple in structure.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is the longitudinal profile cut-open view of large barometer embodiment.
1. thermos among the figure, 2. vertical glass tube, 3. air, 4. water, 5. connecting pipe, 6. thermostatically-controlled equipment, 7. casing, 8. glass window, 9. rule.
Embodiment
In Fig. 1, be sealed with air in certain amount (3) and water (4) in the thermos (1), water communicates by connecting pipe (5) and the outer vertical glass tube (2) of bottle, and vertically the other end of glass tube communicates with atmosphere.Thermos and pipe all place in the rectangular parallelepiped casing (7), have thermostatically-controlled equipment (6) to make in the casing and keep constant temperature in the casing.Its temperature can be according to working as the ground temperature level set during calibration, and power consumption is minimum, most economical when making it to move.
In embodiment illustrated in fig. 2, thermos and pipe all place in the rectangular parallelepiped casing (7), and tank wall is made by insulation material.Be sealed with 2500ml air (3) and 500ml water (4) in the thermos (1), water communicates by connecting pipe (5) and the outer vertical glass tube (2) of bottle, and vertically the other end of glass tube stretches out outside the case and communicates glass tube internal diameter 2.0mm with atmosphere.There is thermostatically-controlled equipment (6) to make in the casing and keeps constant temperature in the certain limit in the casing.Because of room temperature seldom surpasses 45 ℃, temperature in the thermos can be set in 45 ℃, thermostatically controlled temp is set at 45 ± 1 ℃ in the case, and thermostatically-controlled equipment only need add temperature control like this, is easy to realize.Vertically the glass tube tube wall is marked with rule (9), and scale is calibrated with the mercury slug barometer under different pressure conditions.Carrying out reading by glass window (8) observes.
Claims (1)
1. large barometer, in being arranged, thermostatically controlled casing is provided with thermos, connecting pipe, vertical glass tube, rule is characterized in that: at the thermos inner sealing free G﹠W is arranged, thermostatically-controlled equipment is arranged outside the bottle, water in bottle is connected by connecting pipe and the outer vertical glass tube of bottle, and the glass tube other end communicates with atmosphere, and vertically glass tube walls indicates rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520133885 CN2876745Y (en) | 2005-11-11 | 2005-11-11 | Atmosphere meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520133885 CN2876745Y (en) | 2005-11-11 | 2005-11-11 | Atmosphere meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2876745Y true CN2876745Y (en) | 2007-03-07 |
Family
ID=37819982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520133885 Expired - Fee Related CN2876745Y (en) | 2005-11-11 | 2005-11-11 | Atmosphere meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2876745Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616120A (en) * | 2013-09-12 | 2014-03-05 | 深圳市劲拓自动化设备股份有限公司 | Liquid level type pipeline pressure detection device |
-
2005
- 2005-11-11 CN CN 200520133885 patent/CN2876745Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616120A (en) * | 2013-09-12 | 2014-03-05 | 深圳市劲拓自动化设备股份有限公司 | Liquid level type pipeline pressure detection device |
| CN103616120B (en) * | 2013-09-12 | 2015-09-23 | 深圳市劲拓自动化设备股份有限公司 | Liquid level type pipeline pressure detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |