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:
Dec. 06, 2016
Filed:
Dec. 09, 2015
Krohne Ag, Basel, CH;
Tao Wang, Canterbury, GB;
Krohne AG, Basel, CH;
Abstract
A method for operating a Coriolis mass flowmeter that has at least one measuring tube, at least one oscillation generator, at least two oscillation sensors and at least one evaluation unit, wherein the oscillation sensors and/or oscillation generator has at least one coil, wherein the oscillation generator excites the measuring tube to oscillation, wherein the oscillation sensors detect the oscillations of the measuring tube, wherein the temperature of the measuring tube is determined and wherein the evaluation unit processes the detected oscillation signals and determines state variables of the Coriolis mass flowmeter. The electric impedance of the coil of the oscillation generator and/or the electric impedance of at least one coil of the oscillation sensors is determined and the evaluation unit calculates at least one temperature-dependent state variable which is based on the temperature of the measuring tube and which is corrected based upon the determined impedance of the coil.