The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2009
Filed:
Jul. 03, 2007
Daniel Schrag, Zurich, CH;
Harald Grothey, Goettingen, DE;
Kai Hencken, Loerrach, DE;
Markus Naegele, Bad Saeckingen, DE;
Daniel Schrag, Zurich, CH;
Harald Grothey, Goettingen, DE;
Kai Hencken, Loerrach, DE;
Markus Naegele, Bad Saeckingen, DE;
ABB AG, Mannheim, DE;
Abstract
Systems and methods are directed to method and device operating a flow meter. The flow meter including electrodes which can be used to feed a signal into fluid to be measured. A signal Ein the form of a current or a voltage is applied to at least one first electrode. A response signal is measured at another electrode Ewhich does not receive the signal or is not currently activated, to record a diagnosis the flow meter and the changes in the consistency of the flowing medium at any time during measurement operation. Impedances are determined and/or voltage(s) and/or current(s) are measured, wherein these values are set in comparison/ratio with previous values and the status of the device and/or of the measurement medium is deduced both qualitatively and quantitatively.