Procedure and device for the measurement of water vapor transfer

Details Procedure and device for the measurement of water vapor transfer Procedure and device for the measurement of water vapor transfer

1997-10-20

1999-05-25

Williams, Hezron

Measuring and testing

With fluid pressure

Porosity or permeability

73 2901, 73 40, G01N 1304, G01N 1508, C12M 112, G01M 316

Patent

active

059070919

ABSTRACT:
The invention provides a method for measurement of characteristics related to water vapor transfer through plate-like material samples, in particular textile materials, and a measuring unit device with a water container, a water container atmosphere or headspace, air chamber, and measuring chamber, where the water container headspace and air chamber are separated by such plate-like material sample for carrying out such measurements under stationary air flow conditions according to detecting an absolute humidity increase of 1% in an air chamber atmosphere, and where determinations of water vapor transmission rate, water vapor resistance, water vapor permeability and water vapor pressure differential across the plate-like material sample are obtained via use of appropriate sensors installed within the housing of such testing device, including air temperature and humidity sensors, water temperature sensor, and an evaporative heat flux thermal sensor.

REFERENCES:
patent: 3498110 (1970-03-01), Brun
patent: 3604246 (1971-09-01), Toren
patent: 4194041 (1980-03-01), Gore et al.
patent: 5048336 (1991-09-01), Sugihara et al.
patent: 5390539 (1995-02-01), Mayer
patent: 5483078 (1996-01-01), Hermann et al.
patent: 5535615 (1996-07-01), Kent et al.
patent: 5590790 (1997-01-01), Saunders
patent: 5591636 (1997-01-01), Grass
patent: 5659130 (1997-08-01), Chung et al.

Affiliated with

Also associated with

Rating

Procedure and device for the measurement of water vapor transfer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Procedure and device for the measurement of water vapor transfer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Procedure and device for the measurement of water vapor transfer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-402072