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:
May. 20, 2008
Filed:
Nov. 30, 2004
Lothar Deppe, Göttingen, DE;
Lothar Deppe, Göttingen, DE;
ABB Patent GmbH, Ladenburg, DE;
Abstract
The invention concerns a Coriolis mass flowmeter comprising at least one conduit () traversed by the mass, which produces mechanical vibrations under the effect of an excitation unit () and acts as an oscillating element, whereof the oscillating behaviour which varies based on the mass flow rate is sensed by at least one sensor () to determine the mass flow. The invention aims at determining the degree of wear of the conduit (). Therefor, the excitation unit () applies a single excitation pulse to the conduit (), whereof the oscillatory response is sensed by the sensor (). The invention is characterized in that an evaluating unit () arranged downstream calculates the initial dampening constant recorded when the conduit () was new.