| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ultrasonic transducer capable of suppressing ultrasonic exposure. <P>SOLUTION: An ultrasonic transducer (1) comprises a diaphragm array (10) with a plurality of diaphragms (102a, 102b, 102c) that are disposed on a plane surface and have natural frequencies different from each other. The plurality of diaphragms emit ultrasonic waves in a direction not perpendicular to the plane surface when driving signals of frequencies with phases of the diaphragms not meeting each other are concurrently applied. <P>COPYRIGHT: (C)2012,JPO&INPIT |
