Siemens Aktiengesellschaft

Dieter Lingenberg

Rainer Meier

The test apparatus for nondestructive material testing using electrodynamically generated ultrasonic waves. A high-frequency coil assembly has an end face perpendicular to a surface of the workpiece and it is disposed between at least two magnets. Efficient generation and reception of ultrasonic waves is thereby assured.

Test apparatus and method for nondestructive material testing

A method for the production of ultrasound waves for nondestructive materials testing of a workpiece. The method includes providing at least one radio frequency coil disposed in an essentially uniform magnetic field. The at least one radio frequency coil has a longitudinal axis disposed parallel to a surface of a workpiece. The method also includes producing horizontally polarized transverse ultrasound waves in the workpiece due to an interaction of the magnetic field with eddy currents in the workpiece. The eddy currents are supplied by the at least one radio frequency coil. The invention also teaches a device for implementing the method.

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Frankfurt-am-Main, Germany

Dieter Lingenberg