Patent · US Expired

Filling level measurement method according to the running time principle

US7819002B2 · kind B2 · utility

4Cited by

5References

4Claims

0Family size

Assignee

ENDRESS+HAUSER GMBH+CO.KG · DE

Inventors

Dietmar Spanke · Steinen, DE
Marc Baret · Kembs, FR
Edgar Schmitt · Lambach, DE
Yong Jin · Hwaseong-si, KR

Key dates

Filing date	Dec 14, 2004
Grant date	Oct 26, 2010
Priority date	—
Expiry date	Jan 26, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG01F23/284
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A reliable method for measuring a fill level of a fill substance in a container using a fill level measuring device working according to the travel-time principle, wherein, periodically, transmission signals are sent in the direction of the fill substance, their echo signals are registered and converted into an echo function, at least one echo characteristic of the echo function is determined and, on the basis of the echo characteristics of at least one preceding measurement, a prediction is derived for the echo characteristics to be expected in the case of the current measurement, the echo characteristics of the current measurement are determined taking into consideration the prediction, and, on the basis of the echo characteristics, the current fill level is determined.

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