Synthetic Aperture Focusing Technique in High–Frequency Ultrasound Imaging to Locate Layer Delamination

  • Stefan Rupitsch (Speaker)

Activity: Talk or presentation › Contributed talk › unknown

Description

In this proposed paper the synthetic aperture focusing technique (SAFT) is applied to extend the depth of focus for spherically focused ultrasound transducers. This technique uses a virtual source element in the geometrical focus of the transducer. Initial experiments with a 50 μm copper wire are conducted to investigate the efficacy of SAFT–processing for positive and negative defocus. Furthermore delamination of an adhesive join is tested. Compared to the common B– mode ultrasonic imaging which can only detect the presence of layer delamination the proposed SAFT can accurately locate the position of the delamination.
Period24 Apr 2006
Event titleunbekannt/unknown
Event typeConference
LocationItalyShow on map

Fields of science

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  • 202037 Signal processing
  • 202015 Electronics
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  • 202024 Laser technology
  • 202 Electrical Engineering, Electronics, Information Engineering
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  • 203016 Measurement engineering
  • 211908 Energy research
  • 101014 Numerical mathematics
  • 102003 Image processing