The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure 摘要利用聲輻射阻力矩陣和振動面上的速度矢量預報了結(jié)構(gòu)聲輻射的總功率。
The input impedance of the interdigital saw transducer is measured by the equivalent circuit method . the experimental results show that the synchronized frequency of 9 . 586 mhz , the acoustic radiation resistance of 44 . 6 and the static electrode capacity of 194pf all agree with those design values 用自行設計的等效電路測量方案,測量了表面彈性波馬達換能器的輸入阻抗,實驗結(jié)果顯示表面彈性波換能器的共振頻率為9 . 586mhz ,輻射聲電阻為44 . 6 ,叉指電極靜電容為194pf 。