应用于热声系统的声学倒相变压器  

Acoustic reverse-phase transformer used to thermoacoustic system

作　　者：高岗[1] 张浩[1] 李青[2] 

机构地区：[1]中国舰船研究设计中心,武汉430064 [2]中国科学院低温工程学重点实验室(理化技术研究所),北京100190

出　　处：《低温与超导》2012年第11期16-17,79,共3页Cryogenics and Superconductivity

摘　　要：给出了一种声学调相变压结构,并理论上讨论了该结构的调相变压机理。结果表明:在一定的几何条件下,该结构能够实现不受负载影响的声压放大功能,并输出声压倒相;将该结构应用于热声热机驱动热声制冷机或脉冲管制冷机的耦合,可以取得更好的效果。An acoustic reverse phase transformer was given in this paper, and transformer phase modulation mechanism was discussed theoretically. The results were demonstrated that sound pressure amplification without load and overwhelmed with the sound output was achieved through the acoustic reverse phase transformer in the certain geometric conditions. It could achieve better effect when the structure was applied to thermoacoustic cooler or pulse tube refrigerator driven by thermoacoustic engine.

关 键 词：热声 调相变压 声压放大 

分 类 号：TB651[一般工业技术—制冷工程]