Patent · US Active

Filling level measurement device and filling level measurement and monitoring method

US7826309B2 · kind B2 · utility

10Cited by

4References

7Claims

0Family size

Assignee

ENDRESS+HAUSER GMBH+CO.KG · DE

Inventors

Dietmar Spanke · Steinen, DE
Edgar Schmitt · Lambach, DE
Reinhard Schaefer · Freiamt, DE
Holger Steltner · Eßlingen, DE

Key dates

Filing date	Dec 14, 2004
Grant date	Nov 2, 2010
Priority date	—
Expiry date	Jul 10, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S367/908
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for measuring a fill level of a fill substance in a container and for monitoring at least one predetermined fill level (LMIN, LMAX), using a fill level measuring device working according to the travel-time principle, as well as a corresponding fill level measuring device, wherein the monitoring satisfies high safety standards, wherein, in each measuring cycle, transmission signals (S) are sent toward the fill substance and their echo signals (E) are received, the fill level is determined, based on the echo signals (E), in a first evaluation method, and it is determined, based on the echo signals (E), in a second evaluation method independent of the first evaluation method, whether the fill level exceeds or falls beneath the predetermined fill levels (LMIN, LMAX).

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