声波测井圆管状压电陶瓷换能器频响特性研究

李艳荣，韩有信．声波测井圆管状压电陶瓷换能器频响特性研究．测井技术，１９９４，１８（５）：３４０～３４４本文从声波测井圆管状压电陶瓷换能器的等效电路出发，对其频率响应特性进行了理论分析和数值模拟，并在探讨了实验测量方法的基础上，对压电陶瓷换能器的频率响应特性进行了测量。理论分析与实验测量结果都表明，对于换能器的每一振动模（包括径向振动和轴向振动），都有两个谐振频率，而不是一个。另外还提出了测量换能器谐振频率的新方法──相位关系法。

Theoretical and Experimental Investigation on the Frequency Response Features of A Cylindrical Piezoelectric Ceramic Transducer Using in Acoustic Log.

Based on the equivalent electric circuit of a cylindrical piezoelectric ceramic transducer using in acoustic logging, theoretical analysis and numerical simulation of the frequency response features of the transducer are made, whose results are compared with experimental results. Both the theoretical analysis and experimental results show that two resonance frequencies exist for each vibrating mode (including radial vibratins mode and axial vibrating mode). A new method, namely phase relation method, for measuring the resonance frequencies of this transducer is proposed.