Patent:
WO2014187580-A1
05/2013
Peter Archinger, Otto Alfred Barbian, Wolfram Deutsch, Peter Kreier, Roland Reimann, Udo Schlengermann, Herbert Willems, Kay Drewitz, Alexander Zimmer, Frank W. Bonitz, Mathias Böwe, Klaus Conrad, Werner Heinrich, Johannes Vrana, Gerhard Brekow, Wolfgang Kappes, Hans Rieder
Conference Paper:
DGZfP Jahrestagung 05/2013, At Dresden, Germany; 2013
DOI: 10.13140/2.1.4391.5843
Large forgings for turbine and generator rotors are characterized by very low ultrasonic attenuation. Due to “phantom indications,” only low pulse repetition frequencies are often possible. Consequent...
Article:
Materials Testing 04/2013; 55(4):254–260
DOI: 10.3139/120.110432
Publisher: Walter de Gruyter GmbH
The assessment of the Probability of Detection (POD) is used to evaluate the reliability of the non-destructive testing (NDT) system. The POD is required in industries, where a missed flaw might cause...
Conference Paper:
DACH Tagung 09/2012, At Graz, Austria; 2012
DOI: 10.13140/RG.2.1.3449.9288
This paper compares the performance of 2D-SAFT and 3D-SAFT (Synthetic Aperture Focusing Technique) and quantifies it using the example of inspecting large forgings. It is shown that a full 3D-SAFT ana...
Johannes Vrana, Alexander Zimmer, Kevin Bailey, Paul Zombo, Robert E. Shannon, Hans-Peter Lohmann, Werner Heinrich
Conference Paper:
DGZfP Jahrestagung 06/2011, At Bremen, Germany; 2011
DOI: 10.13140/RG.2.1.3187.7849
Heavy forged rotor components, such as those used in land-based turbines and generators for power generation, are inspected using ultrasonic testing, among other methods, prior to commissioning. These...
Article:
AIP Conference Proceedings 02/2010; 1211:451-457
DOI: 10.1063/1.3362428
Publisher: AIP
Using Active Thermography defects such as cracks can be detected fast and reliably. Choosing from a wide range of excitation techniques the method can be adapted to a number of tasks in non‐destructiv...
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