| 摘要 |
<p>PHA 21.284 14 17.2.1986 Biplane phased array transducer for ultrasonic medical imaging. An improved biplane phased array transducer for real time medical imaging in at least two sector planes having a piezoelectric plate (12) with an array of transducer elements(22a, 22b, 22c,...; 24a, 24b, 24c,...) disposed on each major surface of said plate, the array (22a, 22b,...) on one side being at an angle to the array (24a, 24b,...) on the other side, said transducer elements being defined by dicing each major surface of said composite plate through the conductive electrode surface (14, 16) and into a portion of the piezoelectric material, and electrical connections provided whereby each array may be grounded alternately so that real time sector imaging in two planes is obtained. (Figure 2).</p> |
