SU794427A1 - Apparatus for measuring humidity of sheet elongated materials - Google Patents
Apparatus for measuring humidity of sheet elongated materials Download PDFInfo
- Publication number
- SU794427A1 SU794427A1 SU792705696A SU2705696A SU794427A1 SU 794427 A1 SU794427 A1 SU 794427A1 SU 792705696 A SU792705696 A SU 792705696A SU 2705696 A SU2705696 A SU 2705696A SU 794427 A1 SU794427 A1 SU 794427A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- measuring
- aspirator
- measuring chamber
- sampler
- measuring humidity
- Prior art date
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- Sampling And Sample Adjustment (AREA)
Description
тором 12, вход щими в состав замкнутого циркул ционного контура.torus 12, which are part of a closed circulation loop.
Элементы 5, 7, 8, 9, 10, М, 12 помещены под защитный кожух 13, который с помощью щарниров 14 и 15 и рычага соединен со стенкой креплени .Elements 5, 7, 8, 9, 10, M, 12 are placed under the protective cover 13, which is connected with the wall of the fastener with the help of hinges 14 and 15.
Датчики 10 и Ц подключены к измерительному блоку /7 электрогигрометра, который обеспечивает преобразование параметров датчиков в стандартный электрический сигнал. Значение влажности отсчитываетс по щкале измерительного прибора 18.The sensors 10 and C are connected to the measuring unit / 7 of the electrohygrometer, which provides the conversion of the parameters of the sensors to a standard electrical signal. The humidity value is counted by the gauge 18.
Устройство работает следующим образом .The device works as follows.
Контролируемый материал 3 закладываетс или непрерывно подаетс в зазор м-ежду пластинами 1 и 2, прилегающими к поверхности материала. Аспиратор прокачивает воздух в замкнутом циркул ционном контуре, образованном П-образными каналами 4-6, соединенными шлангами 7 и измерительной камерой 9. При этом воздух циркул ционного контура несколько раз продуваетс через контролируемый материал перпендикул рно его новерхности и быстро приходит к гигротермическому равновесию с ним.Controlled material 3 is laid or continuously fed into the gap between plates 1 and 2 adjacent to the surface of the material. The aspirator pumps air in a closed circulation loop formed by U-shaped channels 4-6, connected by hoses 7 and a measuring chamber 9. At the same time, the air of the circulation circuit is blown several times through the controlled material perpendicular to its surface and quickly reaches a hygrothermal balance with it .
Установившиес значени влажности и температуры воздуха измер ютс датчиками 10 и в комплекте с блоком 17 и измерительным прибором 18, отградуированном в процентах влагосодержани .The established values of humidity and air temperature are measured by sensors 10 and complete with block 17 and measuring device 18, calibrated as a percentage of moisture content.
Аспиратор 12 защищает датчики от загр знени .Aspirator 12 protects sensors from contamination.
Предложенное устройство позвол ет повысить точность измерени влажности листовых длинномерных материалов за счет усреднени градиента влажности по толщине и щирине листа при многоходовом продувании материала циркул ционным воздухом , а также за счет ликвидации подсосов наружного воздуха в циркул ционный контур пробоотборника. Рекомендуетс выполн ть четыре прохода воздуха через материал .The proposed device makes it possible to increase the accuracy of measuring the moisture content of long-length sheet materials by averaging a moisture gradient over the thickness and width of the sheet during multi-pass blowing of the material with circulating air, as well as by eliminating external air leaks into the sampling circuit. It is recommended that four air passages be made through the material.
Конструкци устройства позвол ет получить минимальное врем измерений за счет минимального объема циркул ционного контура и заполнени части его исследуемым материалом.The design of the device allows to obtain the minimum measurement time due to the minimum volume of the circulation circuit and filling a part with its test material.
Шарнирна подвеска верхней пластины пробоотборника обеспечивает свободную заправку материала, пропуск утолщений (швов) и прилегание пластин пробоотборника к поверхности материала.The articulated suspension of the upper plate of the sampler ensures free filling of the material, the omission of the bulges (seams) and the fit of the plates of the sampler to the surface of the material.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792705696A SU794427A1 (en) | 1979-01-04 | 1979-01-04 | Apparatus for measuring humidity of sheet elongated materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792705696A SU794427A1 (en) | 1979-01-04 | 1979-01-04 | Apparatus for measuring humidity of sheet elongated materials |
Publications (1)
Publication Number | Publication Date |
---|---|
SU794427A1 true SU794427A1 (en) | 1981-01-07 |
Family
ID=20802314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792705696A SU794427A1 (en) | 1979-01-04 | 1979-01-04 | Apparatus for measuring humidity of sheet elongated materials |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU794427A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5138870A (en) * | 1989-07-10 | 1992-08-18 | Lyssy Georges H | Apparatus for measuring water vapor permeability through sheet materials |
-
1979
- 1979-01-04 SU SU792705696A patent/SU794427A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5138870A (en) * | 1989-07-10 | 1992-08-18 | Lyssy Georges H | Apparatus for measuring water vapor permeability through sheet materials |
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