声效应的方法分别进行了验证.系列控制变量实验表明，当扬声器的驱动电压为7 V，驱动频率为315 Hz，无量纲化的热声堆

位置为0.27 时，样机冷端可获得2.16 K 的理想降温; 且扬声器的驱动电压在测定范围内对制冷量的影响呈现明显的正相关.

采用该实验装置的物理参数值，利用DeltaEC 程序和线性热声学理论的计算较好地吻合了实验结果，验证了这种分析方法的

可行性.

characteristics of standing wave and the basic theory of heat transfer. Besides，the methods of analyzing thermoacoustic

effect by pressure acoustics and linear thermoacoustic theory are verified respectively. The results of experiment

show that the cold side can obtain an ideal cooling of 2.16 K when the speaker driver voltage is 7 V，driving

frequency is 315 Hz，and dimensionless thermoacoustic stack location is 0. 27; the driving voltage of

loudspeaker has a positive correlation with the refrigerating capacity in the range of measurement. The experimental

results are well matched by the prediction of the DeltaEC program and linear thermoacoustic theory when use the

physical parameter values of the experimental device，which verifies the feasibility of this analysis method.