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Article: French Inventor Develops Porous Material Permeability Determination Device
- Article from:
- US Fed News Service, Including US State News
- Article date:
- February 15, 2007
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ALEXANDRIA, Va., Feb. 15 -- Georges Cholet of Ormes, France, has developed a method and a device for using a permeameter comprising a measuring head opposite which the sheet or strip is displaced step by step. According to the U.S. Patent & Trademark Office: "The method and device can comprise a registration including the determination of the permeability profile of the strip over a period T including two different successive permeability ranges, determination of a sinusoid from said profile, the of two extremes of said sinusoid, centering the measuring head on the second extreme, and moving the strip step by step by T/2 and, at each step, performing a permeability measurement." The ...