METHOD OF FILLING LEVEL MEASUREMENT
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United States of America Patent
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Issued Date -
Sep 5, 2013
app pub date -
Feb 28, 2013
filing date -
Mar 1, 2012
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Abstract
A method is proposed of filling level measurement in a container having a medium and at least one interference layer arranged thereabove, wherein an electromagnetic signal is transmitted along a probe arranged in the container and a signal extent of the signal reflected in the container is recorded, a first measurement pulse corresponding to the interface to the medium and a second measurement pulse corresponding to the interference layer are identified in the signal extent and the filling level of the medium is determined from the first measurement pulse and/or the filling level of the interference layer is determined from the second measurement pulse. An expectation value A2E of the amplitude A2 of the first measurement pulse and an expectation value A1E of the amplitude A1 of the second measurement pulse are calculated and the first measurement pulse and the second measurement pulse are identified using the expectation values A1E, A2E.
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