Ultrasonic test head and method for its operation

US5992235A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Eberhard Fischer · Königsee, DE
• Werner Rathgeb · Erlangen, DE
• Anton Erhard · Berlin, DE
• Walter Mohrle · Berlin, DE
• Hermann Wustenberg · Berlin, DE

Key dates

• Filing date: May 3, 1995
• Grant date: Nov 30, 1999
• Expiry date: May 3, 2015

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/044
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

An ultrasonic test head for ultrasonically testing flaws in a workpiece includes a common housing. An ultrasonic transducer configuration is disposed in the common housing. At least one ultrasonic transducer array is disposed in the common housing for operation in a pulse echo mode for transverse waves propagating in a workpiece. The ultrasonic transducer configuration includes at least two acoustically separate ultrasonic transducers to be operated in a transmit/receive mode for longitudinal waves propagating near a surface in the workpiece. In a method for operating the ultrasonic test head, each ultrasonic transducer array or arrays is operated in a transmit/receive mode.