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:
Jan. 16, 2004
Thomas Bosselmann, Marloffstein, DE;
Franz Eiermann, Rattelsdorf-Ebing, DE;
Klaus Huber, Effeltrich, DE;
Michael Willsch, Fürth, DE;
Thomas Bosselmann, Marloffstein, DE;
Franz Eiermann, Rattelsdorf-Ebing, DE;
Klaus Huber, Effeltrich, DE;
Michael Willsch, Fürth, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The method serves to determine the vibrational state of turbine blades, arranged on a rotor shaft, mounted such as to rotate in a housing and/or of guide vanes. At least one electromagnetic wave is transmitted into a flow channel in the vicinity of the blades, using means for the generation of at least one electromagnetic wave. The electromagnetic waves are at least partly reflected from at least one blade. The reflected part of the at least one electromagnetic wave is received by means for receiving and the vibrational state of the corresponding blade is determined from a signal corresponding to the at least one received electromagnetic wave.