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. 21, 2019
Filed:
Jul. 14, 2016
Krohne Messtechnik Gmbh, Duisburg, DE;
Alexander Erkelenz, Moers, DE;
Ralf Storm, Essen, DE;
KROHNE Messtechnik GmbH, Duisburg, DE;
Abstract
Described and shown is a method for operating a Coriolis mass flowmeter () having at least one measuring tube (), an oscillation exciting device () for exciting the measuring tube () to an oscillation (), at least a first oscillation sensor () and a second oscillation sensor () and at least a first sensor signal path and a second sensor signal path. The object of the invention is to provide a method in which the measuring accuracy is increased compared to the prior art. The object is achieved in that at least one first test signal is generated having at least one first test signal frequency, that the at least first test signal is fed at least into the first sensor signal path and into the second sensor signal path, that the at least first test signal is guided by the first sensor signal path over the first oscillation sensor () and by the second sensor signal path over the second oscillation sensor (), that a test signal propagation time difference of at least the first test signal is determined at least between the first sensor signal path and the second sensor signal path, and that a sensor signal propagation time difference between a first sensor signal and a second sensor signal is compensated with the test signal propagation time difference. Additionally, the invention relates to a corresponding Coriolis mass flowmeter.