Table of Contents - Dresden |
Dr. Wu developed a non-contact non-destructive measuring method which combines the advantages of photothermal radiography and thermography, while avoiding the disadvantages of both. Photothermal radiometry implements spot gridding as a means of measurement and therefore requires very long measuring times. While thermography is comparatively fast, creating the image dots simultaneously, the images are overlapped by infrared and optical surface structures from the depth of the object which can negatively influence their interpretation. By combining both methods Datong Wu developed a method that requires a short image formatting time even for the low frequencies of heat generation, thus facilitating rapid structure recognition.
A DGZfP badge of honour was designed for the occasion and the rules state that it may be awarded to three individuals annually. DGZfP Chairman Prof. Dr.-Ing. D. Schnitger regrets that the work of all commendable members naturally cannot be honoured in this way at the first award ceremony for the badges of honour held during the 1997 annual DGZfP convention and asked that the ceremony be considered representative for many similar achievements. At the same time, it should be an incentive for the future activities of the members in the interest of the DGZfP, says the Chairman.
The three 1997 badges of honour represent a cross-section of various achievements for the DGZfP. Honoured were Prof. Dr. H.-J. Kopineck, DGZfP chairman between 1974 and 1983, Karl-Otto Cavalar, chairman of the subcommittee for radiation protection and the road transport of radioactive substances and chairman of the subcommittee for visual inspection, and Klaus Matthies, chairman of the subcommittee for thickness measurement by means of ultrasound and director of the Berlin study group.
Dipl.-Phys. Frank Schubert from the centre for acoustic diagnostics and quality assurance (EADQ) at the Fraunhofer Institute for Non-Destructive Testing in Dresden for his work and experimental studies on the "Propagation of ultrasound in heterogeneous media using numeric simulations" and Dipl.-Phys. Burkhard Schillinger from the Technical University of Munich for his work on "3D computer tomography with thermal neutrons at the research reactor in Garching".
Burkhard Schillinger (30) studied physics at the University of Constance and the TU of Munich. His thesis, written under the direction of Prof. Dr. Wolfgang Gläser, the scientific director of the Garching research reactor, studied high-sensitivity resolving neutron detectors. As part of his doctorate, Schillinger is developing and improving these detectors and possible applications for neutron tomography at the Garching "Atom Ei".
Frank Schubert, born in 1966, is a qualified physicist whose primary field of study is solid-state physics and materials science. He has been studying for his doctorate at the EADQ since January.
The implementation of a completely new method derived from seismology which evaluates numeric data allows conclusions to be drawn on material parameters such as grain size, elastic rigidity, aggregate density, porosity, etc.
His previous work on the propagation of ultrasonic waves in heterogeneous materials such as concrete already suggest widespread significance for new fields of application in NDT.
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Winfried Pfeiffer
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Das nächste Audit kündigte Bjarne Larsen für den Mai 1998 an, anläßlich der 7. ECNDT in Kopenhagen. Herzlichen Glückwunsch; damit ist der Combo auch der internationale Durchbruch gelungen. Das mußte natürlich gebührend gefeiert werden ......
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