Patent · US Active

Method for identifying a sample in a container, e.g. when conducting a traveler survey in the check-in area, by determining the resonance frequency and the quality of a dielectric resonator to which the container is arranged

US8040132B2 · kind B2 · utility

6Cited by

10References

42Claims

0Family size

Assignee

Forschungszentrum Jülich GmbH · DE

Inventors

Norbert Klein · Pocking, DE
Hans-Joachim Krause · Ludwigshafen, DE
Willi Zander · Aldenhoven, DE

Key dates

Filing date	Sep 24, 2007
Grant date	Oct 18, 2011
Priority date	—
Expiry date	Jul 16, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01N22/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and apparatus for identifying a sample in a container, provide for the container with the sample being disposed relative to a resonator, a high-frequency signal being coupled into the resonator for exciting a resonant mode of the resonator, the resonant electric field of the resonator penetrating part of the sample in the container, the resonance curve of at least one resonant mode being measured with and without the sample, and the sample being identified based on the determined change in the resonance frequency compared to a measurement without sample.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.