| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ultrasonic radiator capable of fully obtaining a radiation area of ultrasonic waves, and uniformly radiating the ultrasonic waves. <P>SOLUTION: The ultrasonic radiator 15 includes a plurality of vibrators 21 which axisymmetrically vibrate in the axial direction. Each vibrator 21 has a through-hole 23 at the center, which is formed in a regular octagon shape viewed from above in the axial direction. In the ultrasonic radiator 15, each radiator 21 is arranged at regular intervals in a matrix shape composed of a plurality of rows and columns in such a state in which the external surface of the vibrator 21 is connected thereto. The vibrator 21 adjoining with each other in the row direction and column direction alternatively repeats expansion and contraction so that the ultrasonic radiator 15 radiates ultrasonic waves from each vibrator 21. <P>COPYRIGHT: (C)2013,JPO&INPIT |
