公开(公告)号：US10663389B2

公开(公告)日：2020-05-26

申请号：US15939333

申请日：2018-03-29

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Casey P. O'Brien ,  Ivan C. Lee ,  Zachary W. Dunbar

IPC: B01D53/22 ,  G01N15/08 ,  B01D71/02 ,  B01D65/10 ,  G01N21/3504 ,  G01N21/35

Abstract: A permeation cell device includes a body component, a wire mesh support structure positioned in the body component, a membrane over the wire mesh support structure, a pair of compressible gaskets sandwiching the membrane, and a flange compressing the membrane. A spectroscopic device contains the permeation cell device. At least one mechanism simultaneously performs an infrared-reflection absorption spectroscopic analysis of a surface of the membrane as a fluid permeates on the membrane and measures a trans-membrane fluid permeation rate across the membrane. The wire mesh support structure may be configured to provide mechanical support to the non-opaque membrane at a pressure of at least 1 atm. The permeation cell device and the spectroscopic device may collectively create a pair of separate isolated compartments. The body component may include a material that is non-permeable to the fluid.