SU932324A1 - Vacuum-metric pressure setter - Google Patents
Vacuum-metric pressure setter Download PDFInfo
- Publication number
- SU932324A1 SU932324A1 SU802970777A SU2970777A SU932324A1 SU 932324 A1 SU932324 A1 SU 932324A1 SU 802970777 A SU802970777 A SU 802970777A SU 2970777 A SU2970777 A SU 2970777A SU 932324 A1 SU932324 A1 SU 932324A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- vacuum
- pressure setter
- pressure
- metric pressure
- piston
- Prior art date
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- Measuring Fluid Pressure (AREA)
Description
(54) ЗАДАТЧИК ВАКУУММЕТРИЧЕСКОГО ДАВЛЕНИЯ(54) VACUUMMETRIC PRESSURE TASK
1one
Изобретение относитс к технике измерени давлени и может найти применение при точнык измерени х вакуумметрического давлени , например в поверочной практике.The invention relates to a technique for measuring pressure and can be used for accurate measurements of vacuum pressure, for example, in calibration practice.
Известны грузопоршневые вакуумерь, в основу которых положена схема опрокинутого цилинцрического поршн fl .Known dead weight vacuum gauge, which is based on the scheme tilted tsilitsricheskogo piston fl.
Известные устройства обеспечива достаточно высокую точность измерени , груано поддаютс автоматизации.The known devices ensure a sufficiently high measurement accuracy, which is amenable to automation.
Наиболее близким к предлагаемому вл етс задатчик вакуумметрического давлени , содержащий меж дроссельную камеру , ограниченную с одной стороны посто нным цросселем, а с другой - переменным , выполненным в виде поршн нецилиндрической формы, расположенного внутри сопла цилиндрической формы, и св занный с источником вакуумметрического давлени через посто нный дроссель L 2 J.The closest to the present invention is a vacuum pressure setting unit containing an interstitial throttle chamber, bounded on one side by a constant throttle, and on the other, variable, made in the form of a non-cylindrical piston located inside a cylindrical nozzle, and connected to a source of vacuum pressure through fixed choke L 2 J.
Такой задатчнк предназначен дл воспроизведени только одного значени давлени , опрецрп мого весом поршн , аSuch a preset is intended to reproduce only one value of pressure, the optimum weight of the piston, and
эффективна площадь поршн зависит от веса поршн и давлени питани , что ограничивает точность задани давлени .effective piston area depends on piston weight and feed pressure, which limits the accuracy of pressure setting.
Цель изобретени - повышение точности и расширение диапазона задани давлени .The purpose of the invention is to improve the accuracy and expand the range of the pressure setting.
Поставленна цель достигаетс тем, что задатчик вакуумметрического давлени , содержащий междроссельную камеру, ограниченную с одной стороны посто нным дросселем, а с другой - переменным, выполненным в виде поршн нецилиндри- ческой формы, расположенного внутри соп- .ла цилиндрической или конической формы, и св занную с источником вакуумметрического давлени через посто нН1з1й дроссель , между ним и источником вакууммет- рического давлени введен регул тор расхода, реализующий зависимостьThe goal is achieved by the fact that the vacuum pressure setting unit contains an inter-throttle chamber, bounded on one side by a constant throttle, and on the other side, a variable, made in the form of a non-cylindrical piston located inside a cylindrical or conical shaped stem. A pressure regulator is inserted between the vacuum pressure source and a constant throttle between it and the vacuum pressure source.
G--WPG - WP
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802970777A SU932324A1 (en) | 1980-08-08 | 1980-08-08 | Vacuum-metric pressure setter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802970777A SU932324A1 (en) | 1980-08-08 | 1980-08-08 | Vacuum-metric pressure setter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU932324A1 true SU932324A1 (en) | 1982-05-30 |
Family
ID=20913629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802970777A SU932324A1 (en) | 1980-08-08 | 1980-08-08 | Vacuum-metric pressure setter |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU932324A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7267137B1 (en) | 2005-03-25 | 2007-09-11 | Lev Shildkret | Deadweight pressure standards using non-hysteresis sylphons |
-
1980
- 1980-08-08 SU SU802970777A patent/SU932324A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7267137B1 (en) | 2005-03-25 | 2007-09-11 | Lev Shildkret | Deadweight pressure standards using non-hysteresis sylphons |
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