Ultrasonic probe and method for the nondestructive testing of a planar test specimen

US8857263B2 · kind B2 · utility

Assignee

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Norbert Both · Tholey, DE
• Frank Niese · Saarburg, DE

Key dates

• Filing date: Apr 27, 2012
• Grant date: Oct 14, 2014
• Expiry date: May 18, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/263
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An ultrasonic probe and a method for the nondestructive testing of a test specimen are described, which are activatable individually or in groups as phased array for the emission or reception of ultrasonic plate waves in a predefinable propagation direction in the test specimen wall to be tested. At least one ultrasonic transducer segment with at least two segment parts emits an ultrasonic plate wave field into the test specimen and which are activatable jointly and simultaneously as a phased array. The at least two segment parts are arranged along a common plane so that the ultrasonic wave fields provided from or received by the at least two segments mutually overlap and each have a main propagation direction which encloses an acute angle α in a projection of the plane.