Patent ID: 6442997
Filing Date: 2002-09-03
Classification: G01N

Abstract:
In a surface acoustic wave sensor mounted within a body, said sensor having a surface acoustic wave array detector and a micro-fabricated sample preconcentrator exposed on a surface of said body, an apparatus for collecting air for said sensor, comprising:a housing operatively arranged to mount atop said body, said housing including a passageway having an inlet and an outlet, said passageway having a first section of a first cross-sectional area proximate said inlet, a second section of a second cross-sectional area proximate said first section, a third section of a third cross-sectional area proximate said second section, and a fourth section of a fourth cross-sectional area proximate said outlet, where said third cross-sectional area is less than said second cross-sectional area, and said first and fourth cross-sectional areas are each larger than said second cross-sectional area.