Ultrasonic testing

US4147065A · kind A · utility

Assignees

• Mannesmann AG · DE
• Karl Deutsch Pruf-und Messgerate · DE

Inventors

• Dieter Lather · Rheurdt, DE
• Klaus Janssen · Essen, DE
• Karl Ries · Mülheim, DE
• Peter Moller · Wuppertal, DE
• Ulrich Forstermann · Sprockhövel, DE

Key dates

• Filing date: Mar 7, 1977
• Grant date: Apr 3, 1979
• Expiry date: Mar 7, 1997

Classification

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

Abstract

Ultrasonic echo signals from the rear wall boundary are used to track looking windows for similar signals during a subsequent test cycle as well as for detection of flaw echos, with emphasis on a distinction between end of flaw detection and beginning first rear wall echo looking windows.