Investigation on the characteristic frequency of the microminiature thermoacoustic- Stirling refrigerator

摘要

A new method is given for directly measuring the effective resistance and distinguishing the characteristic frequency in the regenerator of a micro-miniature thermoacoustic-Stirling refrigerator. Measured results were compared with the flux gain factor and transmission loss of a real system. The agreement between the range of the characteristic frequency and frequency of the system is good. Thus the method may be used to predict the characteristic frequency of the regenerator in production.