Method and equipment for measuring vapour flux from surfaces

Details Method and equipment for measuring vapour flux from surfaces Method and equipment for measuring vapour flux from surfaces

2003-01-22

2009-12-15

Williams, Hezron (Department: 2856)

Measuring and testing

Gas analysis

Moisture content or vapor pressure

C073S024040, C073S025050, C073S076000, C073S335020

Reexamination Certificate

active

07631538

ABSTRACT:
A method and equipment for measuring vapour flux from a surface (10) e.g. the rate of water loss from human skin, which is useful in the evaluation of the efficiency of the skin/water barrier. It uses a closed cylinder (12), which is placed against the skin and by measuring the temperature and relative humidity within the cylinder by means of sensors (13, 14) positioned adjacent the wall of the cylinder, the water vapour flux can be determined.

REFERENCES:
patent: 3521865 (1970-07-01), Kertzman
patent: 4050995 (1977-09-01), Bredeweg
patent: 5752411 (1998-05-01), Harpster
patent: 5826458 (1998-10-01), Little
patent: 5847263 (1998-12-01), Springmann et al.
patent: 5907091 (1999-05-01), Pause
patent: 6439028 (2002-08-01), Imhof

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