| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an inexpensive multi-twisted acoustic array and a method for manufacturing the same. <P>SOLUTION: Multiple twisted or rotated arrays (12) are provided. For example, a memory alloy (86) may allow manufacture of multiple rows of elements (24) on a flat substrate. The memory of the alloy (86) is activated to twist different rows in different ways, such as two adjacent substantially parallel but oppositely rotated arrays (12). By selecting different apertures along a given twist, different planes are scanned due to the difference in direction of the elements (24) of the aperture. By selecting different apertures on differently rotated arrays (12), a larger volume (44, 48) may be scanned. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
