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Ram-air sample collection device for a chemical warfare agent sensor

United States Patent

September 3, 2002
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
In a surface acoustic wave sensor mounted within a body, the sensor having a surface acoustic wave array detector and a micro-fabricated sample preconcentrator exposed on a surface of the body, an apparatus for collecting air for the sensor, comprising a housing operatively arranged to mount atop the body, the housing including a multi-stage channel having an inlet and an outlet, the channel having a first stage having a first height and width proximate the inlet, a second stage having a second lower height and width proximate the micro-fabricated sample preconcentrator, a third stage having a still lower third height and width proximate the surface acoustic wave array detector, and a fourth stage having a fourth height and width proximate the outlet, where the fourth height and width are substantially the same as the first height and width.
Megerle; Clifford A. (Manassas, VA), Adkins; Douglas R. (Albuquerque, NM), Frye-Mason; Gregory C. (Cedar Crest, NM)
Lockheed Martin Corporation (Bethesda, MD)
09/ 969,196
October 1, 2001
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT This invention was made with government support under Contract No. DE-AC04-94AL85000, awarded by the U.S. Department of Energy. The government has certain rights in the invention.