Patent · US Active

Method and device for measuring mass and/or moisture of the content of capsules

US7755368B2 · kind B2 · utility

4Cited by

7References

25Claims

0Family size

Assignee

TEWS ELECTRONIK DIPL. ING. MANFRED TEWS · DE

Inventors

Rainer Herrmann · Hamburg, DE
Udo Schlemm · Hamburg, DE

Key dates

Filing date	Feb 6, 2007
Grant date	Jul 13, 2010
Priority date	—
Expiry date	Nov 24, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/15
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A Method and an apparatus for measuring the mass and/or moisture of the contents of incompletely filled capsules, containing, in particular, medicinal products, pharmaceutical products, vitamins and similar products, with the aid of microwaves is disclosed. The displacement of the resonant frequency and broadening of the resonance curve caused by the capsules in at least one resonator is determined and evaluated. Measurements are made integrated over the whole capsule as well as with high local resolution for various portions and cross sections of the capsule.

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