Patent · US Active

Method and device for ultrasonic testing of a workpiece having an uneven surface

US7594439B2 · kind B2 · utility

4Cited by

12References

6Claims

0Family size

Assignee

Intelligendt Systems & Services GmbH · DE

Inventors

Eberhard Fischer · Königsee, DE
Rainer Meier · Erlangen, DE
Friedrich Mohr · Koblenzer Straße, DE

Key dates

Filing date	Sep 11, 2006
Grant date	Sep 29, 2009
Priority date	—
Expiry date	Apr 27, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01N2291/2675
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and a device for the ultrasonic testing of a workpiece having an uneven surface is provided. An ultrasonic test head containing a multiplicity of transducer elements arranged rigidly in a linear array, is acoustically coupled to a workpiece. The ultrasonic test head can be driven in a time-delayed manner with a delay time predetermined for each transducer element. The propagation time of an ultrasonic signal transmitted by an individual transducer element and reflected from the surface and received by this transducer element is measured for a number of the transducer elements and is used for correcting the delay times. The transducer elements are subsequently driven with these corrected delay times.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.