气泡幕回声信号的起伏相关

Fluctuation correlation of echo from bubbly curtains

实验研究了电解气泡幕的回声信号起伏特性，在两种电解电压的条件下，测量了几个频率的信号起伏相关时间，并用声学反演法测量了气泡幕中气泡的体积分数、气泡大小分布以及气泡幕的厚度。

The echo fluctuation from bubbly curtains produced by means of electrolytic method were investigated,of which the correlationtime for several frequencies were measured. Experimen-tal results of volume fraction, the size distribution of the bubbles and the thichness referred to the curtains were obtained by the acoustic inverse method.