SU606133A1 - Method of determining moisture diffusion coefficient - Google Patents
Method of determining moisture diffusion coefficientInfo
- Publication number
- SU606133A1 SU606133A1 SU762372421A SU2372421A SU606133A1 SU 606133 A1 SU606133 A1 SU 606133A1 SU 762372421 A SU762372421 A SU 762372421A SU 2372421 A SU2372421 A SU 2372421A SU 606133 A1 SU606133 A1 SU 606133A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- diffusion coefficient
- moisture diffusion
- shrinkage
- determining moisture
- sample
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
sL wd,- значени усадки соответственно в начальной и конечной област х лквейной част усадки;sL wd, are the shrinkage values, respectively, in the initial and final regions of the shrinkage portion;
врем сушки образца до его усадки на величину соответственно s равную €4. и dL 2 . the drying time of the sample to its shrinkage by an amount, respectively, of s equal to € 4. and dL 2.
На фиг. 1 изображена установка дл иэмерени коэф4мгшента диффузии влаги данньм cnoco6oMj на фиг. 2 - зависимость измене- t0 НИН /влажности (веса) образца U и усадки среднего сло образца df о времени Т ,FIG. 1 shows an installation for measuring the coefficient of moisture diffusion given by cnoco6oMj in FIG. 2 - dependence of the change in t0 NIN / moisture content (weight) of the sample U and shrinkage of the middle layer of the sample df about time T,
Установка содержит весы 1, подставку 2, размещенную на весах и имеющую стержень 3 с плоским концом. Над стержнем располо- 15 жена вожка индикатора 4 перемещени часового типа. Индикатор закрепл етс винтом 5 после установки образца 6. Наиболее целесообразно проводить измерени на образцах шарообразной формы,20The installation contains scales 1, a stand 2 placed on the scales and having a rod 3 with a flat end. Above the rod there is the head of the indicator of movement 4 of the hour-type. The indicator is fixed by screw 5 after installation of sample 6. It is most expedient to carry out measurements on samples of a spherical shape, 20
В процессе сушки измен етс влажность образца и (зависимость 7, фиг, 2 и величина усадки его среднего сло d (за висимость8 )8 которую измер ют индикатором 4, 25During the drying process, the moisture content of the sample and (dependence 7, fig. 2 and the shrinkage of its middle layer d (dependence 8) 8, which is measured by indicator 4, 25,
Одновременно фиксируют врем Т , соответствующее данной усадке сС . Из зависимости 8 следует, что, начина с некоторого момента .времени С , усадка среднего сло образца линейно зависит от изменени 30 влажности образца U , Сушку оканчивают при величине линейной части усадки, равной О,2-О,8 от измеренной усадки среднего сло образца.At the same time fix the time T, corresponding to this shrinkage cc. From dependence 8 it follows that, starting from some time point C, the shrinkage of the middle layer of the sample linearly depends on the change of 30 the humidity of the sample U, Drying ends when the linear part of the shrinkage is equal to O, 2-O, 8 .
Коэффициент диффузии влаги определ ют по 35 вьпиеприведенной формуле. При этом изменение момента окончани сушки в пределах линейной части усадки не вли ет на результат вь ислени коэффициента.The diffusion coefficient of moisture is determined by the 35 formula given. At the same time, a change in the end point of drying within the linear part of the shrinkage does not affect the result of the coefficient determination.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762372421A SU606133A1 (en) | 1976-06-08 | 1976-06-08 | Method of determining moisture diffusion coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762372421A SU606133A1 (en) | 1976-06-08 | 1976-06-08 | Method of determining moisture diffusion coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU606133A1 true SU606133A1 (en) | 1978-05-05 |
Family
ID=20665596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762372421A SU606133A1 (en) | 1976-06-08 | 1976-06-08 | Method of determining moisture diffusion coefficient |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU606133A1 (en) |
-
1976
- 1976-06-08 SU SU762372421A patent/SU606133A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU606133A1 (en) | Method of determining moisture diffusion coefficient | |
| US2760368A (en) | Apparatus for measuring the content of water and similar compounds in insulating liquids | |
| Luikov | The drying of peat | |
| SU521508A1 (en) | Method for determination of chemical potential of moisture and coefficient of moisture exchange of materials | |
| SU636520A1 (en) | Gas relative humidity measuring device | |
| SU1073705A1 (en) | Construction material humidity determination method | |
| SU593127A1 (en) | Gas moisture measuring method | |
| RU2046325C1 (en) | Method for determining heat conductivity of soil | |
| JPS55126824A (en) | Measuring instrument | |
| JPS5547432A (en) | Lengthwise elongation measuring system | |
| SU979817A1 (en) | Wood humidity determination method | |
| SU445888A1 (en) | Method for determining the specific surface of materials | |
| SU589584A1 (en) | Weight hygrometer high-sensitive element | |
| SU828053A1 (en) | Method of measuring capillary moisture | |
| SU1525434A1 (en) | Method of measuring deviation from perpendicularity | |
| SU602819A1 (en) | Method of determining the degree of fatigue damage of materials | |
| Bosisio et al. | Variations in Dielectric Moisture Tests on Paper, Butter Fats and Grease Samples | |
| SU1767459A1 (en) | Method for calibrating humidity sensors based on animal film | |
| SU979840A1 (en) | Method of measuring referred to horizon distance between reference points | |
| SU1144045A1 (en) | Method of measuring loose material humidity | |
| SU75321A1 (en) | Instrument for measuring small deformations | |
| SU447568A1 (en) | The method of determining the volume of the porous body | |
| JPS5580046A (en) | Humidity measuring apparatus and method therefor | |
| SU496515A2 (en) | Apparatus for measuring the resistivity of high-resistance semiconductor materials and the lifetime of free current carriers | |
| RU1595206C (en) | Method of measuring residual water in texture-nonuniform mudded mine rocks |