NDT.net - April 2003, Vol. 8 No.4

STATISTICAL EVALUATION OF ULTRASOUND IMAGES OF CONCRETE STRUCTURES

Dr. rer. nat. Otto Kroggel,
Institut für Massivbau,
Darmstadt University of Technology, Germany
kroggel@massivbau.tu-darmstadt.de
Dipl.-Ing. Martin Schickert, Dr.-Ing. Jürgen Schnapp,
MFPA Weimar, Germany

Paper presented at the 8th ECNDT, Barcelona, June 2002

SUMMARY

INTRODUCTION

CHARACTERISATION OF GRAIN NOISE

EXPERIMENTAL INVESTIGATIONS

SPECIMENS AND TARGETS

MEASURING PROCEDURE

RESULTS

CONCLUDING REMARKS

REFERENCES

  1. Jansohn, R.; Scherzer, J.: Improper Filled Ducts Detected By Ultrasound Reflection, to be presented at 8th ECNDT
  2. Kroggel, O.; Jansohn, R.; Scherzer, J.: Der transparente Beton, Beton und Stahlbetonbau, Verlag Ernst & Sohn, Berlin 2001
  3. ISO 9001 / EN 29001: Quality systems Model for Quality assurance in design / development, production, installing and servicing.
  4. Sekine, M.; Mao, Y.: Weibull Radar Clutter. IEE Radar, Sonar, Navigation and Avionics Series 3, Peter Peregrinus Ltd., London, 1990
  5. Jansohn, R.; Schickert, M.: Objective Interpretation of Ultrasonic Concrete Images. Proceedings of the 7th European Conference on Non-destructive Testing, Copenhagen 1998
  6. Jansohn, R.: Amplitudenstatistik zur Bewertung von Ultraschallrückstreusignalen bei Beton, Dissertation, Technische Universität Darmstadt, 2000
  7. . Kroggel, O.; Schnapp, J.: Bewertung von Ultraschallrückstreuung zur zerstörungsfreien Betonprüfung mit Hilfe angepasster Bildverarbeitung, DFG Zwischenberichte, KR 908/7-1 und HE 2980/1-1

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