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Different configurations of PMUT that have been used in photoacoustic imaging applications.
| Configuration | Element no. | CF (MHz) | BW (%) | Imaging Target | Ref |
|---|---|---|---|---|---|
| Linear | 65 | 6.83 | 29.2 | Six pencil leads at different depths | [134] |
| Linear | 80 | 7 | 68% | Four pencil leads at different depths | [135] |
| 1.5D Endoscopic | 256 (32 × 16) | 5 | 30 | Metal spring; tricuspid valve and right ventricle in a porcine model | [136] |
BW: bandwidth; CF: center frequency.
