Ultrasound testing device for the non-destructive testing of workpieces

US5228343A · kind A · utility

Assignees

• Mannesmann AG · DE
• Krautkramer GmbH & Co. · DE

Inventors

• Manfried Schoenen · Mettmann, DE
• Harri Haacke · Ratingen, DE
• Hans-Jurgen Bathmann · Moers, DE
• Bernhard Karbach · Lechenich, DE
• Gerd Kauth · Neunburg vorm Wald, DE
• Reinhard Prause · Hürth, DE
• Ottokar Patzke · Lechenich, DE

Key dates

• Filing date: Aug 19, 1991
• Grant date: Jul 20, 1993
• Expiry date: Aug 19, 2011

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/044
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An ultrasound testing device for the non-destructive testing of a workpiece wherein at least three testing heads are disposed on a testing head carrier, and the testing heads emit sound waves which converge at one or more intersections in an area of the workpiece so as to detect defects and determine the wall thickness. Operationally, the number of intersections is one less than the number of testing heads, and the separation between the sound waves is chosen so as to avoid the disturbances associated with utilization of oppositely situated testing heads. In addition, the device uses a flow medium to couple the testing heads to the surface of the workpiece.