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文章推导出声波测井圆管状压电陶瓷技能器传输函数，得出换能器有两个谐振中心频率：串联谐振中心频率和并联谐振中心频率。分析计算了谐振中心频率偏移对声波测井曲线的影响。
In this paper, the transfer function of acoustic wave cylindrical piezoceramic transducer is deduced. The results show that the transducer has two resonant center frequencies: the series resonant center frequency and the parallel resonant center frequency. The influence of resonant center frequency offset on sonic log is analyzed and calculated.