Steering of limited diffraction beams with a two-dimensional array transducer
- 2 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
The production and steering of limited diffraction beams with a two-dimensional array are studied. Results show that good limited diffraction beams can be produced if the size of the array elements is small and the array aperture is compensated so that the projection of the aperture on a plane perpendicular to the beam axis is a constant annular ring pattern. The electronic system for controlling the two-dimensional array is described, and methods to simplify it are proposed.Keywords
This publication has 15 references indexed in Scilit:
- Theory and acoustic experiments of nondiffracting X-waves (medical US imaging application)Published by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Evaluation of a nondiffracting transducer for tissue characterizationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Pulse-echo imaging using a nondiffracting beam transducerUltrasound in Medicine & Biology, 1991
- Beam steering with pulsed two-dimensional transducer arraysIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1991
- Generation of a nondiffracting beam with frequency- independent beamwidthThe Journal of the Acoustical Society of America, 1990
- Ultrasonic nondiffracting transducer for medical imagingIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1990
- Bessel beam ultrasonic transducer: Fabrication method and experimental resultsApplied Physics Letters, 1989
- Diffraction-free beamsPhysical Review Letters, 1987
- Two-dimensional transmit/receive ceramic piezoelectric arrays: Construction and performanceIEEE Transactions on Sonics and Ultrasonics, 1978
- State-of-the-art in two-dimensional ultrasonic transducer array technologyMedical Physics, 1976