Abstract
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
SAFTprocessing 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.
| Original language | English |
|---|---|
| Title of host publication | Instrumentation and Measurement Technology Conference |
| Number of pages | 6 |
| Publication status | Published - 2006 |
Fields of science
- 101014 Numerical mathematics
- 102003 Image processing
- 103021 Optics
- 202 Electrical Engineering, Electronics, Information Engineering
- 202012 Electrical measurement technology
- 202014 Electromagnetism
- 202015 Electronics
- 202016 Electrical engineering
- 202021 Industrial electronics
- 202022 Information technology
- 202024 Laser technology
- 202027 Mechatronics
- 202036 Sensor systems
- 202037 Signal processing
- 202039 Theoretical electrical engineering
- 203016 Measurement engineering
- 211908 Energy research