Siemens Aktiengesellschaft

Intelligendt Systems & Services Gmbh & Co. Kg

Intelligendt Systems & Services Gmbh

Kraftwerk Union Aktiengesellschaft

Intelligendt Systems & Servises Gmbh

Areva Gmbh

Rainer Meier

Thomas Rehfeldt

Dieter Lingenberg

Klaus Ruthrof

Friedrich Mohr

Eberhard Fischer

Peter Kaluza

Jana Becker

Harald Röhling

An apparatus internally inspects a workpiece having a hollow cylindrical hole. The apparatus contains an ultrasound transducer configuration having a plurality of ultrasound transducer elements, which are arranged in at least one row, one next to the other, in an elastically deformable carrier which has the form of a segment of a hollow cylinder and has a plurality of sliding pimples which extend in the longitudinal direction of the carrier and project with a protrusion in the radial direction beyond the transmitting and/or receiving surfaces of the ultrasound transducer elements.

Apparatus for internal inspection of a workpiece having a hollow cylindrical hole

In a method and a device for testing a weld seam (), located on the inner surface of a reactor pressure vessel (), by which the outer circumference of an instrumentation nozzle () leading into the interior of this reactor pressure vessel () is welded onto the reactor pressure vessel (), an ultrasound test probe () with a linear ultrasound transducer array () is inserted into the instrumentation nozzle (), which ultrasound transducer array () is parallel to the central axis () of the instrumentation nozzle () in terms of its longitudinal direction, and is used to couple a transmitted ultrasound signal (S) into the instrumentation nozzle () in the region of the weld seam () and to receive a reflected ultrasound signal (R).

Method and device for checking a welding seam present at one of the interior surfaces of a reactor pressure vessel

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.

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

In a method for the ultrasonic testing of a workpiece () in a curved area of its surface, in particular of a workpiece () made of a fiber composite material, an ultrasonic test head () is acoustically coupled to the workpiece in this area, and includes an ultrasonic transducer arrangement () comprising a plurality (N) of individually driveable transducer elements () which are arranged next to one another. In chronologically successive test cycles, a number (n) of transducer elements () are respectively combined to form a group and are driven in a plurality of test pulses within this test cycle in a time delayed manner with respect to one another such that the transmitted ultrasound beam (-) in this test cycle is swept within a predetermined angular range (&#x3b1;), so that one of the number of echo signals, corresponding to the number of test pulses, for each group is received from different directions of the workpiece ().

Method for the ultrasound testing of a workpiece within a curved region of its surface and device suitable for the execution of the process

The porosity of a workpiece, in particular a workpiece made of a fiber composite material is determined. An ultrasonic signal is injected into the workpiece and an ultrasonic echo signal is received from the workpiece. The variation of the amplitude of the ultrasonic echo signal with respect to the depth is used as a measure of the porosity of the workpiece material at the respective depth.

Method of determining the porosity of a workpiece

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.

Method for the production of ultrasound waves for nondestructive

Test equipment for the detection and analysis of material faults in a test piece, including a test head, an electrical remotely controlled manipulator for moving the test head in at least two degrees of freedom, a device connected to the test head for supplying the test head and evaluating signals thereof, a display connected to the test head for measuring test results thereof, a device for providing the manipulator with a testing program for automatically following a predetermined path at the surface of the test piece, an electronic transmission system connected to the manipulator, a device connected to the electronic transmission system for simulating the test piece, and a remote controlled hand-operated guide element disposed adjacent to the display in the simulating means for controlling the test head in correspondence to manual operation.

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Erlangen, Germany

Rainer Meier