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:
Aug. 24, 2010
Filed:
Apr. 25, 2007
Dieter Keese, Wahlsburg, DE;
Thomas Blume, Halle/Saale, DE;
Dieter Keese, Wahlsburg, DE;
Thomas Blume, Halle/Saale, DE;
ABB AG, Mannheim, DE;
Abstract
Mass flow meter having at least one measurement tube, through which mass flows, as an oscillation body which can be set in mechanical oscillation by means of an excitation unit, the oscillation behavior of which varying as a function of the mass flow can be recorded via at least one oscillation sensor in order to determine the mass flow, wherein in order to eliminate noise signals from the measurement voltage (se) recorded via the oscillation sensor computational technology means are provided for forming a complex conjugate spectrum (|sa|) from the spectrum of the excitation voltage (se) as well as a vector product between this (|sa|) and the measurement voltage (se) for the purpose of filtering, in order, by further computational technology means for inverse Fourier transformation, to obtain the signal relationship associated with the vector product between the excitation voltage (se) and the measurement voltage (se) so that the processed measurement voltage (sa) resulting therefrom then predominantly comprises a useful signal component.