3. Single Angle Beam Probe Design

  1. Mark V. Brook

Published Online: 2 JUL 2012

DOI: 10.1002/9781118104781.ch3

Ultrasonic Inspection Technology Development and Search Unit Design: Examples of Practical Applications

Ultrasonic Inspection Technology Development and Search Unit Design: Examples of Practical Applications

How to Cite

Brook, M. V. (2011) Single Angle Beam Probe Design, in Ultrasonic Inspection Technology Development and Search Unit Design: Examples of Practical Applications, John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9781118104781.ch3

Author Information

  1. West Hartford, Connecticut, USA

Publication History

  1. Published Online: 2 JUL 2012
  2. Published Print: 18 NOV 2011

ISBN Information

Print ISBN: 9780470874349

Online ISBN: 9781118104781

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Keywords:

  • angle beam probe design;
  • single crystal angle beam probe;
  • Snell’s law;
  • wedge

Summary

The wedge angle for a single crystal angle beam probe can be calculated as a first approximation, by using Snell’s law, if the desired refracted angle is known. A wedge angle is calculated, assuming that the maximum signal amplitude from a reflector will be located at a predetermined refracted angle, that is, it will be measured at the central ray of the main lobe. One of the considerations is connected to the concept of the imaginary crystal. This idea was developed to simplify the calculation of the divergent characteristics in the test object by substituting a portion of the wedge material with a test object material. The other consideration is connected to the correction of the refracted angle. This chapter contains the explanation for the deviation of the experimental refracted angle from the calculated angle according to Snell’s law.

Controlled Vocabulary Terms

design; probes