日本电子公司向菲律宾提供了一艘考察船,船上装有一套可以产生人工地震波的系统,该系统包括特制的“炮”、接收电缆以及搜集和处理资料的电子装置。考察船借助于“炮”所产生的低频地震波探测海底深层构造。反射回来的波动由千米长、12通道的接收电缆监收,这条电缆在水下15米深处呈水平向由船牵 Nippon Denshi provided the Philippines with a research vessel equipped with a system that generates artificial seismic waves, including specially crafted “cannons”, receiving cables, and electronics to collect and process data. The survey ship uses the low-frequency seismic waves generated by the “gun” to detect the deep sea structure. Fluctuations reflected back by the kilometer long, 12-channel receiver cable supervision, this cable was underwater at a depth of 15 meters from the ship led