热声谐振管品质因数的实验研究  

Measurements of quality factor in thermoacoustic resonator system

作　　者：张春萍[1] 吴峰[2] 丁国忠[1] 郭方中[1] 

机构地区：[1]华中科技大学制冷与低温实验室,武汉430074 [2]武汉工程大学制冷教研室,武汉430074

出　　处：《低温与超导》2007年第5期380-382,共3页Cryogenics and Superconductivity

基　　金：国家自然科学基金项目(50676068)高频热声热机的频谱理论和实验研究;华中科技大学博士点基金项目(20030487046)热声自激振荡圈振荡模态的研究的资助

摘　　要：回热器中填充了玻璃丝绵,在声驱动的热声谐振管中发生共振,通过测量谐振频率,分析热声谐振管的频率特性,辨识谐振管的品质因数,其测量结果能与理论计算值较好的吻合。实验证实,品质因数是评价热声谐振管工作性能的重要参数。The glass wool is used as the matrix of a regenerator, which placed in the loudspeaker - driven resonator. The resonating frequency can be measured when the system is working and resonantly. Then the quality factor is distinguished and analyzed. Good agreement between experiments and theoretical computed results is obtained. The experiment approves that the quality factor is an important factor to evaluate the performance of the thermoacoustic resonator system.

关 键 词：热声谐振管 谐振频率 品质因数 

分 类 号：TM131.41[电气工程—电工理论与新技术]