Method for the non-destructive testing of a test object by means of ultrasound and device therefor

US10877004B2 · kind B2 · utility

Assignee

• GE Sensing & Inspection Technologies GmbH · DE

Inventors

• Roman Koch · Blankenbach, DE
• Stephan Falter · Simmerath, DE
• Reinhard Prause · Hürth, DE
• Helmut Breidenbach · Gerstungen, DE
• Christof Breidenbach · Hürth, DE
• Thomas Weise · Berlin, DE

Key dates

• Filing date: Jun 3, 2015
• Grant date: Dec 29, 2020
• Expiry date: Nov 30, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/105
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for the nondestructive testing of a test object by ultrasound is provided, the method including generating a pulsed ultrasonic field in the test object by means of an array of individually drivable ultrasonic transmitting transducers acoustically coupled to the test object. The ultrasonic transmitting transducers are each driven with a specific analog transient excitation signal, wherein each analog transient excitation signal is generated based on an ultrasonic transmitting transducer-specific stored digital transient excitation function. The method further includes receiving resulting echo signals from the test object by means of an array of individually drivable ultrasonic receiving transducers, with each ultrasonic receiving transducer providing an analog time-resolved echo signal, temporarily storing the time-resolved, transducer-specific, digitized echo signals in the form of an echo signal set, and applying a plurality of different reception processing rules to the echo signal set.