变截面声波导管等效电路研究  

Study on the equivalent circuit of non-uniform cross section acoustic waveguide

作　　者：刘如军[1] 林书玉[1] 张小丽[1] 

机构地区：[1]陕西师范大学应用声学研究所,陕西西安710062

出　　处：《陕西师范大学学报（自然科学版）》2006年第4期47-49,共3页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(10274046)

摘　　要：从特殊波动方程出发,推导出有限长变截面波导管统一的T型等效电路,并依据电路分析理论,给出阻抗转移公式.最后,讨论了指数形波导管的阻抗特性,分析了输入阻抗与负载阻抗之间的关系.结果表明,应用此公式对不同形状波导管进行分析和设计比其他方法更为简便.Based on the special wave equation, the T-type equivalent network of a finite long and non- uniform cross section waveguide is derived. Then the formula of its impedance transfer is obtained with the method of circuit analysis. Finally, the curve of the relation between input and load impedance of the exponential waveguide is given and discussed. The results show that based on this conclusion the design and analysis of different waveguide will become simple.

关 键 词：变截面声波导管 声电类比 等效电路 

分 类 号：O426.1[理学—声学]