Method for capacitive measurement of fill level

Details Method for capacitive measurement of fill level Method for capacitive measurement of fill level

2007-08-28

2007-08-28

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

Immersible electrode type

Reexamination Certificate

active

10496833

ABSTRACT:
In a method for the capacitive fill level measurement of a fill substance in a container, electrical current is determined at two alternating voltage signals U1, U2of differing frequencies f1, f2. On the basis of the two values for current, the capacitive reactance and therewith the fill height h of the fill substance can be easily determined. Influences of ohmic resistance on the measurement results are eliminated in this method.

REFERENCES:
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