Patent · US Active

Assembly and method for measuring electrical and dielectric properties of a material

US11137365B2 · kind B2 · utility

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1References

17Claims

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Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Steffen Geinitz · Augsburg, DE
Maximilian Eberhardt · Eßlingen, DE

Key dates

Filing date	Oct 16, 2019
Grant date	Oct 5, 2021
Priority date	—
Expiry date	Mar 6, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/442
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to an assembly and a method for measuring electrical and dielectric properties of a material having dielectric properties which vary over time, with a sensor that generates an electrical field interacting with the material and which is connected indirectly or directly to a signal generator. The signal generator generates an excitation signal that can be applied to the sensor which is able to generate a sensor signal depending on the electrical and dielectric properties of the material. An analog-digital converter converts the excitation signal and the sensor signal or analog signals derived therefrom into a digital excitation signal and digital sensor signal which can be supplied to a processor-based evaluation unit. The signal generator generates a multifrequency signal with a predetermined bandwidth as the excitation signal.

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