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. 30, 2003
Filed:
Apr. 25, 2002
Robert Baumann, Klingnau, CH;
Michael Class, Untersiggenthal, CH;
Alstom (Switzerland) Ltd., Baden, CH;
Abstract
In a method for the nondestructive quality testing of a thermocouple ( ) which can be used in particular at high temperatures and/or under high levels of vibration, which thermocouple ( ) comprises at least two wires ( ) which run substantially parallel to one another in one plane, are connected to one another at their ends by a welded joint ( ), are surrounded by a hermetically sealed sheath ( ) and inside the sheath ( ) are embedded in insulation ( ) comprising a compacted powder, simple and reliable assessment is achieved by the fact that the X-radiation is passed through the thermocouple ( ) perpendicular to the plane of the wires ( ) and an X-ray image is taken, that the position of the wires ( ) in the vicinity of the welded joint ( ) is determined from the X-ray image, and that the quality of the thermocouple ( ) is established from the position of the wires ( ) in the vicinity of the welded joint ( ).