The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 03, 2016

Filed:

Mar. 17, 2014
Applicant:

The United States of America As Represented BY the Administrator of the National Aeronautics and Space Administration, Washington, DC (US);

Inventors:

Stanley E. Woodard, Hampton, VA (US);

Donald M. Oglesby, Hertford, VA (US);

Bryant D. Taylor, Smithfield, VA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 25/18 (2006.01); G01N 27/26 (2006.01); G01N 27/02 (2006.01); G01N 27/12 (2006.01);
U.S. Cl.
CPC ...
G01N 27/26 (2013.01); G01N 27/021 (2013.01); G01N 27/122 (2013.01);
Abstract

A wireless chemical sensor includes an electrical conductor and a material separated therefrom by an electric insulator. The electrical conductor is an unconnected open-circuit shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the first electrical conductor resonates to generate harmonic electric and magnetic field responses. The material is positioned at a location lying within at least one of the electric and magnetic field responses so-generated. The material changes in electrical conductivity in the presence of a chemical-of-interest.


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