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  4. EMUS-Gerätetechnik - Stand, Anwendungen, Entwicklungstendenzen
 
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1992
Conference Paper
Title

EMUS-Gerätetechnik - Stand, Anwendungen, Entwicklungstendenzen

Abstract
The state of the art of the EMUS (electromagnetic-ultrasonic) system technology is illustrated presenting as examples two typical systems, an 8-channel phase array system for ultrasonic inspections in the field especially of the primary circuit of nuclear power plants, and a 2-channel standard system. The phased array technique provides a significant enhacement of the signal-to-noise ratio and the bandwidth, suppression of the sensitivity in the backward direction of the ultrasonic probe, and allows electronic setting and changing of the angle of incidence at a fixed frequency. Production costs of EMUS systems will be reduced by modular design of all electronic components. Miniaturization using SMD and PAL technology will alow to build e.g. a 8-channel phased array system housing with a height of 150 mm. Miniaturized EMUS probes allow new applications of the EMUS technique utilizing Rayleigh waves, shear horizontal waves, and normally incident linearly polarized shear waves.
Author(s)
Hübschen, G.
Neuschwander, R.
Salzburger, H.J.
Wilbrand, A.
Mainwork
Innovative ZfP - eine Herausforderung für die gesamte Industrie. Teil 2  
Conference
Deutsche Gesellschaft für Zerstörungsfreie Prüfung (Jahrestagung) 1992  
Language
German
Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP  
Keyword(s)
  • Eisenbahn

  • electromagnetic transduction

  • elektromagnetische Ultraschallwandlung

  • filling level

  • Füllstand

  • high-speed train

  • high-temperature probe

  • Hochgeschwindigkeitszug

  • Hochtemperaturprüfkopf

  • inservice inspection

  • inspection system

  • modular system

  • modulares System

  • monitoring

  • Oberflächenprüfung

  • Prüfsystem

  • railway wheel

  • railways

  • Rohr

  • surface inspection

  • tube

  • Überwachung

  • Ultraschall

  • Ultraschallgerät

  • Ultraschallprüfkopf

  • Ultraschallprüfung

  • ultrasonic equipment

  • ultrasonic materials testing

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