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对10种岩石的20个试件和1个氯化银试件测得了高压下纵波和横波的速度,其中3个试件的纵波测至20,000公斤/厘米~2。发现压力高于4000公斤/厘米~2以后,速度基本上随压力呈直线变化,但当压力高于10,000公斤/厘米~2时直线的斜率逐级降低。在横波速度测定中,为提高脉冲初至到时的测定精度,在发射和接收端分别加入耦合电路。利用S波波列的多点测量外推方法有效地提高了测量精度。最后对结果作了细致的误差分析。
The velocity of P-wave and S-wave at high pressure was measured on 20 specimens of 10 kinds of rocks and 1 silver chloride specimen. The longitudinal wave of 3 specimens measured to 20,000 kg / cm ~ 2. After the pressure is higher than 4000 kg / cm 2, the velocity changes linearly with the pressure, but the slope of the straight line decreases gradually when the pressure is higher than 10,000 kg / cm 2. In the shear wave velocity measurement, in order to improve the measurement accuracy of the first arrival of the pulse, coupling circuits are respectively added on the transmitting and the receiving ends. Multi-point measurement extrapolation method using S-wavelet effectively improves the measurement accuracy. Finally, the results of a detailed error analysis.