Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Wincor Nixdorf International Gmbh

Norbert Both

Martin Landwehr

Frank Niese

Heinz Ademmer

Rainer Becker

Ifrit Kiselmann

Christoph Rodner

Andriy Yashan

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 &#x3b1; in a projection of the plane.

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

A device for accepting banknotes comprises a compartment for receiving a bundle of banknotes and a separating mechanism for extracting individual banknotes from the bundle. A sensor system for detecting metallic foreign bodies connected to the banknotes is arranged along at least one of the walls defining the compartment.

Device for accepting banknotes

Growing community of inventors

Tholey, Germany

Norbert Both