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Uncertainties and errors in Non-Destructive Characterisation of Discontinuities

Alexandar Skordev

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INTRODUCTION

DEFINITIONS AND FACTORS AFFECTING THE VALUE OF ERRORS AND UNCERTAINTIES OF THE RESULTS

REVIEW OF ERROR AND UNCERTAINTY VALUES IN NON-DESTRUCTIVE CHARACTERISATION OF DISCONTINUITIES

METHOD FOR INTERSPECIES MULTIPLICATION OF THE RESULTS FROM THE EVALUATION OF ERRORS AND UNCERTAINTIES OF NON-DESTRUCTIVE CHARACTERISATION

CONCLUSION

BIBLIOGRAPHY

  1. BIPM, IEC, IFCC, ISO, IVPAC, IUPAP, OIML Vocabulary of Basis and Terms in Metrology, ISO, 1993.
  2. ISO/IEC/OIML/BIMP Guide for Expression of Uncertainty in Measurement ISBN 92-67-10188-9/1993(E).
  3. Ermolov I.N. Theory and practice of ultrasonic examination, M. Mashinostroenie, 1981, p.180-185. (in Russian)
  4. Scherbinskii V.G., N.P.Aleshin Ultrasonic examination of welded joints in building constructions,M.,Stroyizdat, 1976, p.95-101, 1989 p.164-212. (in Russian)
  5. Roumiancev S.V. Radiation NDT,M., Atomizdat, 1974, p.267-268 (in Russian)
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  7. Tzvetkov D. and col. Electromagnetic defectometry, Sofia, Tehnika 11981, p.118. (in Bulgarian)
  8. Aleshin N.P. and col. Methods for accustic control. M., Mashinostroenie, 1989, p.259. (in Russian)
  9. IIW/IIS-1021, 1989 The Application of Engineering Critical Assessment in Design, Fabrication and Inspection to Assess the Fitness for Purpose of Welded Products- Appendix 6. Non-destructive Examination...
  10. Ermolov I.N. Optimisation of the conditions of ultrasonic echo control method. Part III.- Defectoscopy, 1996 Nr.3. (in Russian)
  11. Skordev Al.I. Non-destructive location of discontinuities, Scientific Bulletin of the National Scientific and Technical Union of Mechanical Engineering, year.I,Nr.2 (31), 1999. (in Bulgarian)
  12. Ermolov I.N. Errors in evaluation of defect coordinates affected by the unstability of the acoustic contact. -Defectoscopy, 1992, Nr. 4. (in Russian)
  13. Steffen B.,Kallig Traceable calibration and uncertainty of measurements and tests. NORDTEST Report NT TECHN Report 251/1994 (Pr.N1013-91-7).
  14. IIW/IIS Doc.V-1133-99 T.P.Lerch and o. Variability of Ultrasonic Properties Measured in IIW Type Reference Blocks.
  15. Dianov V.F., V.G. Scherbinskii Definition of tolerance for metrological characteristics of control reflectors -Energomashinostroene, 1982, Nr.6 (in Russian)
  16. Skordev Al. And col. The precision in express evaluation of size of reflectors using ARD scales. Bulletin Defectoscopy 1977, vol.II-10, Sofia, published by the National Scientific and Technical Union of Mechanical Engineering. (in Bulgarian)
  17. IIW/IIS Doc.V-859-87 Skordev Al, B.Tabakova Criteria and Indices for Selection of Reference Reflectors in ultrasonic Testing of Welds.
  18. Skordev Al. Non-destructive characterisation of discontinuities, Scientific Bulletin of the National Scientific and Technical Union of Mechanical Engineering, year IV, Nr.2 (31), 1999. (in Bulgarian)

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