CN201622734U - Atmospheric pressure measuring demonstration experimental device - Google Patents
Atmospheric pressure measuring demonstration experimental device Download PDFInfo
- Publication number
- CN201622734U CN201622734U CN2010201180066U CN201020118006U CN201622734U CN 201622734 U CN201622734 U CN 201622734U CN 2010201180066 U CN2010201180066 U CN 2010201180066U CN 201020118006 U CN201020118006 U CN 201020118006U CN 201622734 U CN201622734 U CN 201622734U
- Authority
- CN
- China
- Prior art keywords
- syringe
- glass tube
- long glass
- mercury
- experiment device
- 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
Links
Images
Abstract
The utility model discloses an atmospheric pressure measuring demonstration experimental device which is characterized in that a long glass tube, a hose and an injector are included, wherein the lower end of the long glass tube is communicated with the front end of the injector through the hose; a venthole is formed on the side wall of the rear end of the injector; and a liquid storage cavity at the front end of the injector is filled with mercury. The device is pollution-free during the experimental process, and can easily prove the fact that the height of the mercurial column is not descended under the support of the atmospheric pressure.
Description
Technical field
The utility model relates to a kind of physics facility, relates in particular to a kind of atmospheric atmosphere measuring demonstrating experiment device of demonstration measurement that is used for.
Background technology
The evangelista torricelli experiment is a historic experiment that is used for measuring atmospheric pressure.Traditional experimental technique, mercury scatter unavoidably when pouring into and pollute, though some improved experimental provision need not pour into mercury, complex structure influences the understanding of physical concept; When remaining in the glass tube of holding up when mercury slug, the student there is no legal principle and separates mercury slug and why not can fall, think why mercury slug does not lower, be the result of glass tube inner vacuum suction or other power effects, make mercury slug be unlikely to fall down, and do not see it being the result of atmospheric pressure effect.
Summary of the invention
The purpose of this utility model provides a kind of atmosphere measuring demonstrating experiment device, tests so that demonstrate evangelista torricelli in the classroom.
The purpose of this utility model is achieved through the following technical solutions:
A kind of atmosphere measuring demonstrating experiment device comprises: long glass tube, flexible pipe and syringe; Long glass tube lower end and syringe front end are by soft pipe connection, and syringe rear end sidewall is provided with air hole, is filled with mercury in the syringe front end liquid storage cylinder.
Described long glass tube internal diameter is 1mm.
Described long wall thickness of glass tube is greater than 3mm.
Described device also comprises support, and long glass tube and syringe are fixed on the support.
Described support is provided with rule.
Described support is provided with the spring clamp that is used for fixing syringe.
The technical scheme that provides by above-mentioned the utility model as can be seen, the atmosphere measuring demonstrating experiment device that the utility model embodiment provides, experimentation is pollution-free, and can be easy to prove atmospheric pressure and support mercury pressure and do not land.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The structural representation of the atmosphere measuring demonstrating experiment device that Fig. 1 provides for the embodiment of the invention;
The principle demonstration figure one of the atmosphere measuring demonstrating experiment device that Fig. 2 provides for the embodiment of the invention;
The principle demonstration figure two of the atmosphere measuring demonstrating experiment device that Fig. 3 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills belong to protection domain of the present utility model not making the every other embodiment that is obtained under the creative work prerequisite.
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
As shown in Figure 1, a kind of atmosphere measuring demonstrating experiment device comprises: long glass tube 6, flexible pipe 4 and syringe 1; Long glass tube 6 lower ends are communicated with by flexible pipe 4 with syringe 1 front end, and syringe 1 rear end sidewall is provided with air hole 2, is filled with mercury in the syringe front end liquid storage cylinder.
Described flexible pipe 4 is the heavy wall sebific duct, and described long glass tube 6 wall thickness are greater than 3mm.Described long glass tube 6 internal diameters are 1mm.
Described in addition device also comprises support 1, and long glass tube 6 all is fixed on the support 1 with syringe 2.Also be provided with rule 7 on the support 1.In this example, be a plank on the support 1, the edge of plank is provided with rule 7.This device can hang over wall or stands on the iron stand and use by support 1.
In addition, described support 1 is provided with the spring clamp that is used for fixing syringe.Spring accompanies two, and one is the lower spring folder 5 of being located at long glass tube 6 belows, and another is a side spring clamp 3 of being located at long glass tube 6 lower sides.
Principle of work
At first, position as shown in Figure 1, this moment, syringe 1 was located in the side spring clamp 3, a certain amount of mercury of injection to syringe 1 in, 1/3 of about syringe 1 liquid storage cylinder of mercury height highly gets final product.
Secondly, perfusion mercury in long glass tube 6, pushed away air hole 2 with the mercury sealing with the piston forward of syringe 1 this moment earlier, takes off syringe 1 from side spring clamp 3, with the experimental provision reversing, syringe 1 is clipped in the lower spring folder 5, as shown in Figure 2.
The 3rd, syringe 1 piston is extracted backward, to air hole 2, after liquid storage cylinder and atmosphere communicate, begin to pour into mercury, vibrating device assists air to discharge gently, and mercury injects long glass tube 6.The piston forward of syringe 1 was pushed away air hole 2,, syringe 1 was clipped in side spring clamp 3, shown in Fig. 1 position the experimental provision reversing.
At last, syringe 1 piston is extracted backward, to air hole 2, liquid storage cylinder and atmosphere communicate.Mercury slug begins to descend in this duration glass tube 6, and Torricellian vacuum appears in long glass tube 6 upper ends.Remain on the certain position behind the mercury slug decline certain altitude, the difference in height of two mercury faces does not change with the inclination of glass tube, and the pressure that this section mercury slug produces just equals the atmospheric value of there and then.
Checking is that atmospheric pressure support mercury slug does not land: the atmospheric pressure that changes liquid level top in the syringe, when syringe 1 piston insertion syringe is pushed away downwards, the atmospheric pressure of mercury face top increases in the syringe 1, surpasses atmospheric value, and the height of mercury slug increases in the then long glass tube 6; When outwards extracting syringe 1 piston, atmospheric pressure reduces in the syringe 1, and the height of mercury slug descends in the long glass tube 6; So what support long glass tube 6 interior mercury pressures is to act on the atmospheric pressure on the mercury face in the syringe 1, rather than from the suction of torricellian tube inner vacuum or the result of other power effect.
After experiment finishes, mercury in the closed injection device 1, by the experimental provision that turns clockwise shown in Figure 3, air enters long glass tube 6, and mercury flows back in the flexible pipe 4.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (6)
1. an atmosphere measuring demonstrating experiment device is characterized in that, comprising: long glass tube, flexible pipe and syringe; Long glass tube lower end and syringe front end are by soft pipe connection, and syringe rear end sidewall is provided with air hole, is filled with mercury in the syringe front end liquid storage cylinder.
2. atmosphere measuring demonstrating experiment device according to claim 1 is characterized in that, described long glass tube internal diameter is 1mm.
3. atmosphere measuring demonstrating experiment device according to claim 1 and 2 is characterized in that, described long wall thickness of glass tube is greater than 3mm.
4. atmosphere measuring demonstrating experiment device according to claim 1 is characterized in that described device also comprises support, and long glass tube and syringe are fixed on the support.
5. atmosphere measuring demonstrating experiment device according to claim 4 is characterized in that described support is provided with rule.
6. atmosphere measuring demonstrating experiment device according to claim 4 is characterized in that described support is provided with the spring clamp that is used for fixing syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201180066U CN201622734U (en) | 2010-02-11 | 2010-02-11 | Atmospheric pressure measuring demonstration experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201180066U CN201622734U (en) | 2010-02-11 | 2010-02-11 | Atmospheric pressure measuring demonstration experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622734U true CN201622734U (en) | 2010-11-03 |
Family
ID=43026193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201180066U Expired - Fee Related CN201622734U (en) | 2010-02-11 | 2010-02-11 | Atmospheric pressure measuring demonstration experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201622734U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345868A (en) * | 2013-07-23 | 2013-10-09 | 湖州文思必得科教仪器有限公司 | Boyles law demonstration device |
| CN106683543A (en) * | 2017-03-24 | 2017-05-17 | 武汉轻工大学 | Experimental device of manual pressure source for testing multiple fluid pressure volume temperature relationship |
| CN106781903A (en) * | 2017-03-24 | 2017-05-31 | 武汉轻工大学 | Piston-type pressure source determines the experimental provision of multiple fluid pressure bulk temperature relation |
| CN106816066A (en) * | 2017-03-24 | 2017-06-09 | 武汉轻工大学 | Piston-type pressure source fluid pressure bulk temperature relation determination experiment device |
| CN106816067A (en) * | 2017-03-24 | 2017-06-09 | 武汉轻工大学 | Experimental provision for determining fluid pressure bulk temperature relation |
-
2010
- 2010-02-11 CN CN2010201180066U patent/CN201622734U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345868A (en) * | 2013-07-23 | 2013-10-09 | 湖州文思必得科教仪器有限公司 | Boyles law demonstration device |
| CN106683543A (en) * | 2017-03-24 | 2017-05-17 | 武汉轻工大学 | Experimental device of manual pressure source for testing multiple fluid pressure volume temperature relationship |
| CN106781903A (en) * | 2017-03-24 | 2017-05-31 | 武汉轻工大学 | Piston-type pressure source determines the experimental provision of multiple fluid pressure bulk temperature relation |
| CN106816066A (en) * | 2017-03-24 | 2017-06-09 | 武汉轻工大学 | Piston-type pressure source fluid pressure bulk temperature relation determination experiment device |
| CN106816067A (en) * | 2017-03-24 | 2017-06-09 | 武汉轻工大学 | Experimental provision for determining fluid pressure bulk temperature relation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201622734U (en) | Atmospheric pressure measuring demonstration experimental device | |
| CN202693367U (en) | Gravity sampler | |
| CN203203654U (en) | Liquid metering device | |
| CN203165298U (en) | Sealed torricelli experiment device | |
| CN202018763U (en) | Physical pressure demonstration device | |
| CN203118306U (en) | Teaching demonstration instrument | |
| CN204314157U (en) | The pressure-detecting device that a kind of oil feed pipe is special | |
| CN205615059U (en) | Cardboard board separator constructs | |
| CN204990913U (en) | Simple and easy device of research liquid pressure and velocity of flow relation | |
| CN203629910U (en) | Full-automatic high-pressure rock core saturation device | |
| CN204575265U (en) | Aluminum pipe leak detection apparatus | |
| CN201417532Y (en) | Torricellian teaching demonstration device | |
| CN203759946U (en) | Hydrostatic pressure demonstrator | |
| CN203013056U (en) | Tester demonstrating reduction on internal energy while gas does work | |
| CN203177846U (en) | Water level instrument | |
| CN203783992U (en) | Siphon discharge device | |
| CN205312200U (en) | Pipeline placing device for civil engineering | |
| CN201853396U (en) | Demonstration device for experiment of irrelevance between work of gravity and path | |
| CN211784519U (en) | Semi-fluid density detection device | |
| CN202677679U (en) | Buoyancy demonstrating instrument for physical experiment | |
| CN103839461A (en) | Device for demonstrating internal energy changes during gas working | |
| CN103150947B (en) | Sealed evangelista torricelli experimental provision and experimental technique | |
| CN203673717U (en) | Atmospheric pressure measuring device | |
| CN204448051U (en) | A kind of vacuum self-sucking medical experiment Special test tube | |
| CN201955969U (en) | Device for demonstrating Pascal drum rupture experiment |
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: 20101103 Termination date: 20110211 |