Patent · US Active

Method for functionally testing a filling level sensor

US7458246B2 · kind B2 · utility

1Cited by

14References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Oliver Grunwald · Hockenheim, DE
Matthias Wiese · Aschaffenburg, DE

Key dates

Filing date	Sep 27, 2005
Grant date	Dec 2, 2008
Priority date	—
Expiry date	Feb 3, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01F23/80
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a method for functionally testing a filling level sensor which measures the filling level of a liquid in a tank, in which method a change in filling level that is measured by the filling level sensor is compared with a calculated change in filling level. According to the invention, the calculated change in filling level is determined from a measured change in temperature of the liquid.

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