Patent ID: 8673649
Filing Date: 2014-03-18
Classification: G01N

Abstract:
1. A wireless chemical sensor, comprising: an electrical conductor having first and second ends and shaped to form a pattern between said first and second ends for storage of an electric field and a magnetic field, said first and second ends remaining electrically unconnected such that said electrical conductor so-shaped defines an unconnected open-circuit having inductance and capacitance wherein, in the presence of a time-varying magnetic field, said electrical conductor so-shaped resonates to generate harmonic electric and magnetic field responses, each of which has a frequency, amplitude and bandwidth associated therewith; a material entirely spanning said pattern while being spaced apart from said electrical conductor at a location lying within at least one of said electric and magnetic field responses so-generated, said material selected to affect attenuation of energy associated with said electric and magnetic field responses so-generated in the presence of a chemical-of-interest; and an electric insulator disposed between said electrical conductor and said material.