9. Technique Development and Focused Probe Design for Immersion Method Inspection

  1. Mark V. Brook

Published Online: 2 JUL 2012

DOI: 10.1002/9781118104781.ch9

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) Technique Development and Focused Probe Design for Immersion Method Inspection, in Ultrasonic Inspection Technology Development and Search Unit Design: Examples of Practical Applications, John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9781118104781.ch9

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

SEARCH

Keywords:

  • focused probes;
  • nondestructive testing (NDT)

Summary

Focused probes development and application for Nondestructive testing (NDT) reached its apogee in the late 1970s. These focused probes were developed to improve the detection and sizing of flaws by concentrating the ultrasonic energy in a smaller focal zone using a relatively large diameter transducer. The chapter presents several approaches to the design of a straight beam focused probe. One approach is to use “ precise,” and therefore complicated, equations, starting from the determination of focal distance parameters in a test object and then extrapolating them to parameters in water, such as a water path L, a focal length Fa, and others. The other approach is to use relatively simple equations to define the same parameters, and then adjust test parameters by using the experimental results. The ultimate goal of a probe design is to calculate the acoustic parameters in water, which would satisfy certain specification requirements.

Controlled Vocabulary Terms

nondestructive testing; probes; ultrasonic transducers