The driving system of the speaker is constructed by a circular PZT bimorph, which is clamped on its boundary, An elastical coupling element is utilized between the bimorph and the speaker cone.
扬声器的驱动元件是边缘固定的圆形PZT 双型弯曲振子，振动——辐射元件是圆锥形纸盆，这两部分之间采用弹性耦合。
The coupling between butt fiber and cone lensed fiber is described in this paper. A theoretical model is presented and the formula of coupling efficiency is given.
建立了平端光纤与锥端微透镜光纤对耦合的理论模型，得到耦合系数的计算公式。
A coupling technique between a cone endface fiber and LD with the advantage of high efficiency and low reflectance is presented.
介绍了一种低反射高效率的尖锥端光纤和半导体激光器的耦合技术。
The results show that, impulse and impulse coupling coefficient firstly increase and then decrease with the augment of the dimensionless factor when cone angle is fixed;
结果表明：当锥角固定时，冲量和冲量耦合系数随无量纲因子先增大后减小，极大值对应的无量纲因子仅与气体比热比相关；
The results show that, impulse and impulse coupling coefficient firstly increase and then decrease with the augment of the dimensionless factor when cone angle is fixed;
结果表明：当锥角固定时，冲量和冲量耦合系数随无量纲因子先增大后减小，极大值对应的无量纲因子仅与气体比热比相关；
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