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刘子华等：偶极子横波测并方法的实验研究，测井技术，１９９６（３）２０，１５７～１６１。最近，研制出两种新的偶极子声源，一种是片状的，另一种是圆管状的。对两种声源的性能进行了实验比较，发现室内混凝土模型井中观测到的偶极子声波（弯曲波）波形的首波相速度近似等于混凝土横波速度，其视频率约为单极子声波频率的一半，即１０ｋＨＺ左右。实验还表明，在短源距时测定弯曲波参数较为方便。
Liu et al .: Experimental study of the dipole transverse shear measurement method, Logging Technology, 1996 (3) 20, 157 ~ 161. Recently, two new dipole sources have been developed, one of which is sheet-like and the other of which is cylindrical in shape. The experimental comparison of the performance of the two sound sources shows that the first phase velocity of the dipole acoustic wave (bending wave) waveform observed in the indoor concrete model well is approximately equal to the shear wave velocity of concrete, and the video frequency is about the monopole acoustic frequency Half, that is about 10kHZ. Experiments also show that it is more convenient to measure bending wave parameters at short source distance.