Patent ID: 9010174
Filing Date: 2015-04-21
Classification: G01N

Abstract:
1. Method for analysis of gas components of a gas composite matrix, with a pair of sensors, which each comprise a cavity enclosed by a membrane, wherein one side of each membrane is exposed to the matrix and another side of each membrane is exposed to a purge gas, for which initially, a baseline of a measuring system at a start point t A is defined, which is consistent with a diffusive state of equilibrium, and subsequently, a timeline of the differential pressure Δp s or differential volume from the start point t A is measured, which is created between both cavities as a consequence of permeation of the gas components of the matrix through both membranes, wherein both membranes of the sensors have different timelines for the permeation of said gas components, an end point t E is determined, at which the differential pressure or differential volume is consistent with the differential pressure or the differential volume measured at the start point t A , and said permeating gas components are determined from the time difference Δt=t E −t A .