CN2309569Y - Liquid pressure gauge - Google Patents
Liquid pressure gauge Download PDFInfo
- Publication number
- CN2309569Y CN2309569Y CN 96228133 CN96228133U CN2309569Y CN 2309569 Y CN2309569 Y CN 2309569Y CN 96228133 CN96228133 CN 96228133 CN 96228133 U CN96228133 U CN 96228133U CN 2309569 Y CN2309569 Y CN 2309569Y
- Authority
- CN
- China
- Prior art keywords
- resistance
- manometer
- circuit
- liquid
- pressure gauge
- 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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- Measuring Fluid Pressure (AREA)
- Adjustable Resistors (AREA)
Abstract
The utility model relates to a liquid pressure gauge which adopts the way that a sliding rheostat which is electrically connected with an external current meter is arranged in an elastic telescopic insulated closed vessel. When a latent measuring body is pressed, a spring is contacted to drive the sliding rheostat to change the resistance which is connected to a circuit so as to change the current intensity in the circuit. The value of the pressure can be obtained through observing the reading of the current meter in a value meter.
Description
The utility model relates to a kind of physics teaching experiment device, is the Manometer that can specifically measure a certain depths pressure in the liquid.
In the junior physics teaching material, Manometer adopts to prick has the box of rubber membrane to slip in the liquid, represent the size of pressure by observing liquid level difference in U type glass tube two side pipes that are communicated with it by proofed sleeve, this kind experiment can only be described the relation of liquid pressure with the degree of depth roughly, can not measure the numerical value of pressure in the liquid definitely.
The utility model just provides a kind of Manometer, can not only study the relation of the pressure of liquid with the degree of depth more exactly, can also specifically measure the pressure values of arbitrary depths in the liquid.
The purpose of this utility model is achieved in that it dive to survey body is in having elasticity and retractable cylindrical insulation closed container, a slide rheostat is set and is electrically connected with galvanometer in the observed numerical tabular in outside.When dive surveying body and slipping in the liquid, survey body and be compressed because of liquid has pressure to make to dive, people and drive rheostatic slip feeler lever and change contact position with resistance promptly changes the resistance that is connected in the circuit; When supply voltage was constant, the strength of current in the circuit changed thereupon, reached the purpose of measuring liquid pressure by the strength of current in the metering circuit.
Owing to adopt such scheme can measure the pressure values of a certain depths in the liquid easily, only adopt elasticity telescopic insulation closed container, slide rheostat and a galvanometer.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the structural drawing of Manometer embodiment.
Among the figure, 1 spring sebific duct, 2 bearing plates, 3 slip feeler levers, 4 resistance, 5 binding posts, 6 leads, 7 galvanometer, 8 telegraph keys, 9 power supplys.
Feeler lever (3) resistance (4) galvanometer (7) power supply (9) telegraph key (8) that in Fig. 1, slides series connection.Slip feeler lever (3) is stuck in and slides in any case on the resistance (4) and can both be connected with resistance (4) good electrical, and resistance (4) is that uniform pure linear resistance resistance is in the 0-10K variation range.
Latent survey body in Fig. 2 by spring sebific duct (1) bearing plate (2) form can elastic telescopic the insulation closed container, two bearing plate inside are being fixed resistance (4) and slip feeler lever (3) respectively.Drive resistance (4) and slip feeler lever (3) change contact position each other when spring contraction bearing plate is close during pressurized, thereby changed the resistance value that is connected into circuit.Lead (6) is that the lead of twin-core insulation has certain intensity, both rheostat in the survey body of diving and the galvanometer in the numerical tabular, is connected into circuit and plays the latent effect of surveying body of traction again.Binding post (5) also is that latent survey body is suspended from the hook in the liquid.
Claims (3)
1, a kind of Manometer is to be electrically connected with galvanometer by slide rheostat, it is characterized in that slide rheostat be arranged on can the insulation closed container of elastic telescopic in.
2, according to claim 1, described Manometer is characterized in that the insulation closed container of elastic telescopic, is the airtight bearing plates of fixing in columniform spring sebific duct two ends.
3, Manometer according to claim 1 is characterized in that, two bearing plates be arranged in parallel and fixing uniform pure linear resistance respectively and be stuck in ohmically slip feeler lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96228133 CN2309569Y (en) | 1996-06-10 | 1996-06-10 | Liquid pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96228133 CN2309569Y (en) | 1996-06-10 | 1996-06-10 | Liquid pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2309569Y true CN2309569Y (en) | 1999-03-03 |
Family
ID=33906090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96228133 Expired - Fee Related CN2309569Y (en) | 1996-06-10 | 1996-06-10 | Liquid pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2309569Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401625A (en) * | 2010-09-19 | 2012-04-04 | 成都易生玄科技有限公司 | Slide rheostat positioning method for light transmission channel |
| CN103292938A (en) * | 2013-01-31 | 2013-09-11 | 王录民 | Pressure sensor |
| CN111855037A (en) * | 2020-08-06 | 2020-10-30 | 重庆大学 | Ground stress measuring device |
-
1996
- 1996-06-10 CN CN 96228133 patent/CN2309569Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401625A (en) * | 2010-09-19 | 2012-04-04 | 成都易生玄科技有限公司 | Slide rheostat positioning method for light transmission channel |
| CN102401625B (en) * | 2010-09-19 | 2013-08-07 | 成都易生玄科技有限公司 | Slide rheostat positioning device for light transmission channel |
| CN103292938A (en) * | 2013-01-31 | 2013-09-11 | 王录民 | Pressure sensor |
| CN111855037A (en) * | 2020-08-06 | 2020-10-30 | 重庆大学 | Ground stress measuring 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 |