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:
Feb. 28, 2006
Filed:
Aug. 31, 2001
Volker Arndt, Erbach, DE;
Klaus Offterdinger, Stuttgart, DE;
Walter Pasdzior, Bensheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a device and method for determining parameters of a welding system. According to the invention, a welding area () is subjected to the action of ultrasonic waves, preferably to the action of shear waves, by using an ultrasound source (). During a first welding process (n), a signal processing () determines a first ultrasonic permeability (Dn) from a received ultrasonic signal (UE). During at least one subsequent welding process (n), a second ultrasonic permeability (Dn) is determined from an ultrasonic signal (UE) that is received during a renewed exposure of the welding area () to ultrasonic waves. A display () and/or a diagnostic function and/or a correction of control quantities of the welding system is/are carried out as a function of the at least two ultrasonic permeabilities (Dn, Dn).