它是法国石油研究所研制的,是一种机械内爆装置。该装置利用可调节的容积,该容积抽去空气成真空,因此其压力小于外界的静水压力。气室的机械支撑物在一个指令下可以去掉,气室的体积由于压力的不平衡而突然减小,从而产生“内爆”的地震脉冲。这种震源所得的记录也不存在严重的气泡效应。其主要设备: It is developed by the French Petroleum Institute, is a mechanical implosion device. The device utilizes an adjustable volume that draws the air out of the vacuum so that its pressure is less than the hydrostatic pressure outside. The mechanical support of the air chamber can be removed under one command and the volume of the air chamber suddenly decreases due to pressure imbalance, resulting in an “implosion” seismic pulse. There is also no significant bubble effect on the records obtained from this source. Its main equipment: