초록 ▼

A sensor for measuring the filling level of a fluid in a vessel, in particular fuel tank is disclosed. The sensor has an electrode group which extends vertically over the fillable vessel height, and dips into the fluid and which forms electrical capacitors whose capacitances change in a measurable f

A sensor for measuring the filling level of a fluid in a vessel, in particular fuel tank is disclosed. The sensor has an electrode group which extends vertically over the fillable vessel height, and dips into the fluid and which forms electrical capacitors whose capacitances change in a measurable fashion when there are changes in the filling level. The capacitances are determined by a connected evaluation circuit and are represented as a signal which describes the filling level. There is at least one measuring electrode which extends over the entire fillable vessel height. A plurality of reference elements are arranged at different reference heights within thefillable vessel height. Optionally, a plurality of measuring electrodes are arranged in such a way that each measuring electrode has a significant change in width at a reference height assigned to it, and wherein the entire fillable vessel height is passed over by the measuring electrodes. An advantageous method for measuring the filling level is also disclosed.

대표청구항 ▼

[ What is claimed is:] [1.]1. A sensor for measuring the filling level of a fluid in a non-uniform vessel, which comprises:an electrode group which extends vertically over the fillable vessel height which dips into the fluid and which forms electrical capacitors whose capacitances change in a measur

[ What is claimed is:] [1.]1. A sensor for measuring the filling level of a fluid in a non-uniform vessel, which comprises:an electrode group which extends vertically over the fillable vessel height which dips into the fluid and which forms electrical capacitors whose capacitances change in a measurable fashion when there are changes in the filling level, the capacitances being determined by a connected evaluation circuit and being represented as a signal which describes the filling level;wherein there is at least one measuring electrode which extends over the entire fillable vessel height; andwherein a plurality of reference elements are arranged at different reference heights within the fillable vessel height and the distance separating each reference element is determined such that the volume between each reference element is equivalent.