© 2016

Defect Sizing Using Non-destructive Ultrasonic Testing

Applying Bandwidth-Dependent DAC and DGS Curves


  • Presents an approach to bring both sizing methods DGS and DAC close together

  • Proposes an idea to increase sizing methods productivity significantly

  • Author with 30+ years experience working in industry and 10+ patents in the field


Table of contents

  1. Front Matter
    Pages i-xviii
  2. Wolf Kleinert
    Pages 1-5
  3. Wolf Kleinert
    Pages 7-19
  4. Wolf Kleinert
    Pages 21-27
  5. Wolf Kleinert
    Pages 47-52
  6. Wolf Kleinert
    Pages 65-79
  7. Wolf Kleinert
    Pages 81-84
  8. Wolf Kleinert
    Pages 85-98
  9. Wolf Kleinert
    Pages 99-103
  10. Wolf Kleinert
    Pages 105-108
  11. Back Matter
    Pages 109-118

About this book


This book presents a precise approach for defect sizing using ultrasonics. It describes an alternative to the current European and American standards by neglecting their limitations. The approach presented here is not only valid for conventional angle beam probes, but also for phased array angle beam probes. It introduces an improved method which provides a significant productivity gain and calculates curves with high accuracy. Its content is of interest to all those working with distance gain size (DGS) methods or are using distance ampllitude correction (DAC) curves.


Distance Amplitude Correction Distance Gain Size Non-destructing Testing Reflector Sizing Standardized Sizing Methods Ultrasonic Testing

Authors and affiliations

  1. 1.BonnGermany

About the authors

Wolf Kleinert started his career in ultrasonic material testing  in the year 1982 at the Krautkrämer Company in Cologne, Germany. He had a plurality of managerial assignments in Product-, Marketing- and Sales-Management, Intellectual Property Management as well as General Management. He was responsible for the Application Laboratory and heavily involved in the development of new probe technologies. End of 2014 Wolf retired after nearly 33 years in ultrasonic material testing.

Bibliographic information

Industry Sectors
Chemical Manufacturing
Consumer Packaged Goods
Materials & Steel
Energy, Utilities & Environment
Oil, Gas & Geosciences