9. Technique Development and Focused Probe Design for Immersion Method Inspection
Published Online: 2 JUL 2012
Copyright © 2012 the Institute of Electrical and Electronics Engineers, Inc.
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
- Published Online: 2 JUL 2012
- Published Print: 18 NOV 2011
Print ISBN: 9780470874349
Online ISBN: 9781118104781
- focused probes;
- nondestructive testing (NDT)
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