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:
Jul. 24, 2007
Filed:
Sep. 17, 2004
Axel G. Rossberg, Freiburg, DE;
Kilian Bartholome, Freiburg, DE;
Jens Timmer, Freiburg, DE;
Rene Friedrichs, Ladenburg, DE;
Frank Buhl, Gottingen, DE;
Jorg Herwig, Adelebsen, DE;
Axel G. Rossberg, Freiburg, DE;
Kilian Bartholome, Freiburg, DE;
Jens Timmer, Freiburg, DE;
Rene Friedrichs, Ladenburg, DE;
Frank Buhl, Gottingen, DE;
Jorg Herwig, Adelebsen, DE;
ABB Patent GmbH, Ladenburg, DE;
Abstract
A measuring instrument whose measuring principle is based on an oscillator, for example an eddy counter, and in which there is arranged a sensor for recording a measured signal (S(t)), which can be supplied to an evaluation unit (), characterized in that, from the phase increments psi(tau,t), that is to say from the differences between the instantaneous values phi(t) of the phase signal derived from the measured signal S(t) in a phase extractor () and values phi(t-tau) time-delayed by a delayed time tau, a coupling indicator value (KI) is formed in such a way that the existence of phase coupling with a further oscillator can be detected on the latter by means of comparison with a coupling reference value (KR).