正交偶极子横波探头实验

正交偶极子横波发射探头是正交偶极子声波测井的关键部件。其发射的声波能否满足偶极子声波测井的要求是探头制作的关键。由于正交偶极子发射探头所使用的压电片子比较多，在空间有一定的分布，所以，如何检测压电片子，使其最终满足偶极子探头发射的要求是探头研究和生产的关键环节。文章用实验的方法对其进行了研究。通过测量国产探头所激发的圆周方向声场及其在空间的频率分布发现：在现有的激发方式下，可以用该探头得到主频率为500kHz-800kHz的振动成分。该频率成分随方位角改变。

An experiment about shear wave transducer for the cross-dipole sonic logging

The transducer which can emit lower frequency vibration is an important part of the cross-dipole apparatus.There are four vibration parts which mounded in cross-dipole sonic logging and the distribution follows some regular in the transducer.So,detecting the vibration parts correctly will make sure that they can meet the final request.The paper designs an experiment to research the problem.By stimulating the acoustic transducer made in Tianjin University,we can get a acoustic field which follows some regula...