FI981295L - Method and device for measuring water vapor diffusing from or into a material - Google Patents
Method and device for measuring water vapor diffusing from or into a material Download PDFInfo
- Publication number
- FI981295L FI981295L FI981295A FI981295A FI981295L FI 981295 L FI981295 L FI 981295L FI 981295 A FI981295 A FI 981295A FI 981295 A FI981295 A FI 981295A FI 981295 L FI981295 L FI 981295L
- Authority
- FI
- Finland
- Prior art keywords
- diffusion
- diffusion chamber
- moisture
- measured
- water vapor
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 239000000463 material Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 2
- 238000009792 diffusion process Methods 0.000 abstract 8
- 238000001704 evaporation Methods 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 1
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
This publication describes a method for determination of a diffusion flow of moisture diffusing from a surface 9 or to a surface 9 of a material. In the method, a diffusion chamber 7 is formed on the surface 9 intended for the measurement, which diffusion chamber at one end has the surface 9 intended to be measured, the partial water vapour pressure is determined in at least a first 5 and a second 6 point in the interior space of the diffusion chamber 7, which points are situated at least at a first and a second distance from the surface being measured, and the diffusion flow is calculated by the determined partial pressures. According to the invention, a moisture evaporating or binding surface 10 is formed in the diffusion chamber 7 for transfer of moisture between the surface 9 being measured and the moisture evaporating or binding surface 10 via the diffusion through the inner space of the diffusion chamber 7. The publication also describes an arrangement for carrying out the method. <IMAGE>
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI981295A FI108163B (en) | 1998-06-05 | 1998-06-05 | Method and apparatus for measuring water vapor diffusing into or out of a material |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI981295 | 1998-06-05 | ||
| FI981295A FI108163B (en) | 1998-06-05 | 1998-06-05 | Method and apparatus for measuring water vapor diffusing into or out of a material |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI981295A0 FI981295A0 (en) | 1998-06-05 |
| FI981295L true FI981295L (en) | 1999-12-06 |
| FI108163B FI108163B (en) | 2001-11-30 |
Family
ID=8551925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI981295A FI108163B (en) | 1998-06-05 | 1998-06-05 | Method and apparatus for measuring water vapor diffusing into or out of a material |
Country Status (1)
| Country | Link |
|---|---|
| FI (1) | FI108163B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6966877B2 (en) | 1999-11-16 | 2005-11-22 | Delfin Technologies Ltd. | Method and device for measuring transepidermal water loss of skin surface |
-
1998
- 1998-06-05 FI FI981295A patent/FI108163B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6966877B2 (en) | 1999-11-16 | 2005-11-22 | Delfin Technologies Ltd. | Method and device for measuring transepidermal water loss of skin surface |
Also Published As
| Publication number | Publication date |
|---|---|
| FI108163B (en) | 2001-11-30 |
| FI981295A0 (en) | 1998-06-05 |
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