SU121276A1 - Device for measuring absolute pressure - Google Patents
Device for measuring absolute pressureInfo
- Publication number
- SU121276A1 SU121276A1 SU612943A SU612943A SU121276A1 SU 121276 A1 SU121276 A1 SU 121276A1 SU 612943 A SU612943 A SU 612943A SU 612943 A SU612943 A SU 612943A SU 121276 A1 SU121276 A1 SU 121276A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- absolute pressure
- measuring absolute
- liquid
- thermoelement
- wetted
- Prior art date
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Description
Дл измерени абсолютного давлени нримен ют устройства, содержащие два термоэлемента, один из которых смачиваетс лсидкостью. Однако известные устройства имеют небольшую величину полезного сигнала, возникающего нри смачивании термоэлемента водой, и, следовательно , малую чувствительность.To measure the absolute pressure, devices containing two thermocouples are used, one of which is wetted with liquoriness. However, the known devices have a small value of the useful signal arising from wetting the thermoelement with water, and, consequently, low sensitivity.
Дл устранени этого недостатка иредлагаетс нрнменить дл смачивани термоэлемента какую-либо легкоиспар ющую жидкость, нанример этанол или метанол. Эти жидкости нри незначительной стоимости имеют больщую величину тенлоты иснаренн и высокую иснар емость . Кроме того, этанол не довит, что существенно нри использовании устройства в пищевой, витаминной н фармацевтической отрасл х промыщлеиности.In order to eliminate this drawback, it is necessary to use an easily evaporating liquid, such as ethanol or methanol, to wet the thermoelement. These fluids at insignificant cost have a large tenlot value and a high isarability. In addition, ethanol does not imply that it is essential when using the device in the food, vitamin and pharmaceutical industries.
Действие предлагаемого устройства основано на фиксации температуры двух термоэлементов, помещенных в исследуемом объеме, один из которых непрерывно или периодически смачиваетс легконспар ющейс жидкостью (этанолом или метанолом). При этих услови х показани смачиваемого термоэлемента будут измен тьс пропорционально давлению газа, что следует из основного уравнени Дальтона, согласно которому интенсивность испарени зависит от давлени насыщенных паров жидкости при определенной темнературе.The operation of the proposed device is based on fixing the temperature of two thermocouples placed in the investigated volume, one of which is continuously or periodically moistened with a lightly vaporized liquid (ethanol or methanol). Under these conditions, the reading of the wetted thermoelement will vary in proportion to the gas pressure, which follows from the basic Dalton equation, according to which the evaporation rate depends on the pressure of saturated liquid vapors at a certain temperature.
Предмет изобретени Subject invention
Устройство дл измерени абсолютного давлени , содержащее два термоэлемента, один из которых смачиваетс жидкостью, отличающеес тем, что, с целью повыщени чувствительности и увеличени полезного сигнала, в качестве смачивающей жидкости применена легкоиспар юща с жидкость, например этапол или метанол.A device for measuring absolute pressure, containing two thermocouples, one of which is wetted with a liquid, characterized in that, in order to increase the sensitivity and increase the useful signal, a easily evaporating liquid, for example treadol or methanol, is used as a wetting liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU612943A SU121276A1 (en) | 1958-11-29 | 1958-11-29 | Device for measuring absolute pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU612943A SU121276A1 (en) | 1958-11-29 | 1958-11-29 | Device for measuring absolute pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU121276A1 true SU121276A1 (en) | 1958-11-30 |
Family
ID=48393071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU612943A SU121276A1 (en) | 1958-11-29 | 1958-11-29 | Device for measuring absolute pressure |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU121276A1 (en) |
-
1958
- 1958-11-29 SU SU612943A patent/SU121276A1/en active
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