一种新型的功率超声辐射器研究  

Study of a new type of ultrasonic radiator

作　　者：林书玉[1] 张福成[1] 郭孝武[1] 

机构地区：[1]陕西师范大学应用声学研究所,西安710062

出　　处：《陕西师大学报（自然科学版）》1993年第1期83-85,共3页Journal of Shaanxi Normal University(Natural Science Edition)

摘　　要：1 共振式辐射器的设计理论共振式高效辐射器是一块矩形薄板,其厚度 h 远小于辐射面的最小尺寸 l_y,对于薄板的自由振动,描述其弯曲振动的运动方程为, 为板的面密度,ρ为体密度,h 为板的厚度,D 为薄板的弯曲刚度,E 和 vA new kind of rectangular thin plate as a high power ultrasonic radiator is studied, and its resonant frequency equation is derived under the condition of free boundary.The vibrating mode distribution of the rectangular thin plate is studied,and experimented with its radiating performance under high power condition.The theory and the experiments show their the rectangular thin plate has many vibrating modes,which correspond to dif- ferent resonant frequencies.

关 键 词：共振式 超声辐射器 振动 测量 

分 类 号：O329[理学—一般力学与力学基础]