79.7 K驻波型热声驱动脉管制冷机  

A pulse tube cooler driven by a standing thermoacoustic engine reached 79.7 K

作　　者：裘圆[1] 陈国邦[1] 曹卫华[1] 包锐[1] 寿琳[1] 汤珂[1] 

机构地区：[1]浙江大学制冷与低温研究所,杭州310027

出　　处：《低温与超导》2006年第6期401-403,477,共4页Cryogenics and Superconductivity

摘　　要：根据声学原理,把一根大约四分之一波长长度的管子接到一台驻波型热声发动机和一个脉管制冷机之间,能把制冷机入口的压比和压力振幅放大,使脉管制冷机的最低制冷温度降到79.7 K。In acottstie principle, it could amplify pressure ratio and pressure amplitude at outset of engine by a tube which is a quarter wavelength in length between standing thermoacoutic engine and pulse tube cooler. In this case, a lowest no - load refrigeration temperature of 79.7 K was obtained.

关 键 词：声学压力放大器 压比 压力振幅 驻波型热声发动机 

分 类 号：TB651[一般工业技术—制冷工程]