Patent · US Active

Method and apparatus for determining the moisture of a running material web

US7759947B2 · kind B2 · utility

4Cited by

3References

40Claims

0Family size

Assignee

Voith Patent GmbH · DE

Inventors

Oliver Kaufmann · Augsburg, DE
Peter Biener · Herbrechtingen, DE
Rainer Wenzl · Nördlingen, DE

Key dates

Filing date	Dec 14, 2007
Grant date	Jul 20, 2010
Priority date	—
Expiry date	Sep 7, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/346
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In a method for determining the moisture of a running material web, in particular a paper web or paperboard web, the material web is scanned by way of a sensor including a microwave resonator, the resonance response of the microwave resonator is investigated, and the moisture in the material web is established in the light of this resonance response while taking account of the distance between the microwave resonator and the material web. Also disclosed is a corresponding apparatus for determining the moisture.

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