| Popis: |
Imaging with acoustical lenses in the low MHz frequency range using fully populated 2‐D arrays offers the potential for high‐resolution, real‐time, 3D volume imaging, together with low power and low cost. A 2‐D composite‐piezoelectric receiver array bonded directly to a large custom‐integrated circuit is the enabling technology for a new implementation of the original acoustical imaging paradigm. This 128×128 (16 384 total) element transducer hybrid array (THA) uses massively parallel, on‐chip signal processing and is intended for medical and underwater imaging applications. The system under development, which is the acoustical analog of a video camera, will be discussed in this paper. |
