SU785692A1 - Apparatus for measuring gas permeability - Google Patents
Apparatus for measuring gas permeability Download PDFInfo
- Publication number
- SU785692A1 SU785692A1 SU792715154A SU2715154A SU785692A1 SU 785692 A1 SU785692 A1 SU 785692A1 SU 792715154 A SU792715154 A SU 792715154A SU 2715154 A SU2715154 A SU 2715154A SU 785692 A1 SU785692 A1 SU 785692A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- measuring
- gas
- gas permeability
- sample
- pressure valve
- Prior art date
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- Measuring Fluid Pressure (AREA)
Description
1one
Изобретение относитс к технике измерени проницаемости пористых тел газами и может быть использовано в деревообрабатывающей и мебельной промышленности.The invention relates to a technique for measuring the permeability of porous bodies with gases and can be used in the woodworking and furniture industry.
Известно устройство дл измерени проницаемости пористых материалов, содержшцее две камеры: одну дл газа под давлением и дл газа, прошедшего через образец. Работа устройства основана на измерении перепада давлени в камерах 1.A device for measuring the permeability of porous materials is known, containing two chambers: one for pressurized gas and one for gas that has passed through the sample. The operation of the device is based on measuring the pressure drop in chambers 1.
Однако это устройство не дает достаточно точных результатов,However, this device does not provide sufficiently accurate results.
Известно устройство дл определени газопроницаемости древесины, основанное на методе измерени скорости падени внутри.некоторого резервуара , соединенного с обоймой дл образца и имекидего избыточное давление. Устройство представл ет собой двухдонный сосуд, образующий емкости дл образца и дл газа под давлением, и приспособлени дл креплени измерительных приборов. Испытуемой образец с одной стороны подвергают избыточному давлению газа , ас противоположной стороны он свободно сообщаетс с атмосферой. Газ, прошедший через образец, выA device for determining the gas permeability of wood is known, which is based on a method for measuring the rate of fall inside a certain reservoir connected to the sample holder and having excessive pressure. The device is a double-bottom vessel forming containers for the sample and for pressurized gas, and fixtures for fixing measuring instruments. On the one hand, the test sample is subjected to an overpressure of gas, while on the opposite side it is in free communication with the atmosphere. The gas that has passed through the sample, you
тесн ет воду из измерительной трубки в уравнительную скл нку. По объему вытесненной воды суд т об объеме прошедшего через образец газа, а вре5 М прохождени воды от начальной до конечной отметки устанавливают секундомером Dl.pushes water from the measuring tube into the equalizing bottle. In terms of the volume of water displaced, the volume of the gas passing through the sample is judged, and the time of water passing from the initial to the final mark is set with the stopwatch Dl.
Недостатком устройс тва вл етс неточность измерений вследствие неоднородности свойств газа и воды и необходимость проведени подсчета результатов испьгганий, что зг1медл ет их проведение.The disadvantage of the device is the inaccuracy of the measurements due to the heterogeneity of the properties of gas and water and the need to calculate the results of emissions, which slows them down.
Целью изобретени вл етс повы 5 шение точности и ускор1ение процесса измерени .The aim of the invention is to improve the accuracy and speed up the measurement process.
Указанна цель достигаетс тем, что на входе каждой из емкостей (дл -образца и дл газа под давлением) установлен клапан давлени ,управл емый электромагнитом и св занный с датчиком давлени в этой емкости, а с клапаном давлени измерительной емкости св зано пусковое устройствоThis goal is achieved by the fact that a pressure valve is installed at the input of each tank (for sample and for gas under pressure), controlled by an electromagnet and connected to a pressure sensor in this tank, and a trigger device is connected to the pressure valve of the measuring tank
25 и секундомер.25 and a stopwatch.
На чертеже изображена принципиальна электрическа схема устройства.The drawing shows a circuit diagram of the device.
В корпусе 1 устройства расположены измерительна емкость 2, в которой находитс прижимное устройствоIn the case 1 of the device are located the measuring capacitance 2, in which there is a clamping device
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792715154A SU785692A1 (en) | 1979-01-23 | 1979-01-23 | Apparatus for measuring gas permeability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792715154A SU785692A1 (en) | 1979-01-23 | 1979-01-23 | Apparatus for measuring gas permeability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU785692A1 true SU785692A1 (en) | 1980-12-07 |
Family
ID=20806181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792715154A SU785692A1 (en) | 1979-01-23 | 1979-01-23 | Apparatus for measuring gas permeability |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU785692A1 (en) |
-
1979
- 1979-01-23 SU SU792715154A patent/SU785692A1/en active
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