Projects per year
Abstract
Laser Induced Phased Array (LIPA) is a non-contact, couplant-free inspection technique providing high quality ultrasonic imaging. LIPAs use lasers for ultrasound generation and detection: ultrasonic beam forming is performed in post processing, using delay-and-sum algorithms, while the data acquisition is done by scanning the two lasers, offering a unique flexibility in array designs that are currently impossible to achieve with conventional transducer based phased arrays. When synthesizing a 2D LIPA, 3D imaging can be achieved. However, due to the mechanical scanning and the large number of elements required for 2D arrays, LIPAs acquisition is time consuming, limiting the potential of the technique. One approach to overcome this limitation is to reduce the number of array elements, however this can lead to the production of grating lobes, resulting in imaging artefacts. Grating lobes can be suppressed through careful LIPA design and this is explored in this study. Rapid array prototyping is demonstrated for synthesizing 3 arrays designs using the same experimental setup.
Original language | English |
---|---|
Title of host publication | 2022 IEEE International Ultrasonics Symposium (IUS) |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Number of pages | 4 |
ISBN (Electronic) | 9781665466578 |
ISBN (Print) | 9781665478137 |
DOIs | |
Publication status | Published - 1 Dec 2022 |
Event | 2022 IEEE International Ultrasonics Symposium - Venice Convention Center, Venice, Italy Duration: 10 Oct 2022 → 13 Oct 2022 https://2022.ieee-ius.org/ |
Conference
Conference | 2022 IEEE International Ultrasonics Symposium |
---|---|
Abbreviated title | IUS 2022 |
Country/Territory | Italy |
City | Venice |
Period | 10/10/22 → 13/10/22 |
Internet address |
Keywords
- ultrasonic phased array
- laser ultra sonics
- sparse arrays
- grating lobe suppression
- reconfigurable arrays
Fingerprint
Dive into the research topics of 'Grating lobe suppression through novel, sparse laser induced phased array design'. Together they form a unique fingerprint.-
Adaptive Laser Induced Phased Arrays
Stratoudaki, T. (Principal Investigator)
BAE Systems Marine Limited, NDE Research Association Ltd NDEvR, Sellafield Limited, EPSRC (Engineering and Physical Sciences Research Council)
29/11/21 → 28/11/25
Project: Research
-
Remote, 3D ultrasonic imaging in extreme environments using 2D laser induced phased arrays
Stratoudaki, T. (Principal Investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/03/20 → 23/08/23
Project: Research