INVESTIGATION ON THE DESIGN OF MINIATURE THERMOACOUSTIC COOLER

Thermoacoustic cooler driving by sound is the optimal project for developing of subminiature cryogenic technology. To adapt the micromation, we change loudspeaker to dynamoelectric sound source. We give the equivalent network of the system, and introduce a design method of the miniature thermoacoustic cooler based on it. A project with high frequency based on the method is put forward that the frequency is 4 000 Hz and the radius of resonance is 0.002 m and the length of resonance is 0.042 m.