脉冲换能器及其在地震物理模型中的应用

IMPULSE TRANSDUCER AND ITS APPLICATION IN SEISMIC PHYSICAL MODEL EXPERIMENTS

地矿部石油物探研究所

本文介绍了地震物理模型实验中使用的脉冲换能器。换能器的结构、性能完全是按地震物理模型实验要求而设计和研制。在解决背衬匹配和其它工艺问题后,在水中得到了2～2.5个周期的反射脉冲波形、辐射(或接收)方向基本上无方向性。用此换能器可改善地震模型实验的时间剖面,同时也开拓了地震物理模型的研究范围。

In this paper, the impulse transducer used in seismic physical model experiments was introduced. The structuie and performance of the transducer were designed and developed entirely for the experiment mentioned above. After the problems concerning the background matching as well as the state-of-the-art having been solved, the reflected impulse wave form with 2-2.5 cycles were obtained in the water. The radiation or reception were, in the large, directionless. By using this transducer, the time section of the seismic model could be improved and sophisticated and, at the same time, the research sphere of seismic model experiment would also be extended.