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新系统的几种独特的特点使得它可以记录和完成现场处理256道以上的地震资料,并可分离数据道,后者在勘探设计中遇到的许多情况下,有相当好的分辨力。用只记录符号位数据的方法,由振动器信号精确地恢复相对振幅的基本原理使其可通过单独缠绕的一对导线多路编排并传送几百个独立道的数据。用低阻抗和现在的方式传送数字化的地震信号,并用光学耦合器代替变压器,结果消除了由高压线感应和相位
Several unique features of the new system allow it to record and complete on-site processing of more than 256 seismic data and to separate data lanes that are quite discriminating in many situations encountered in exploration designs. Using only the sign bit data, the basic principle of accurately recovering the relative amplitude from the vibrator signal makes it possible to multiplex and route hundreds of independent tracks of data through a single pair of conductors wound separately. Sending digitized seismic signals in low impedance and current mode and replacing them with optical couplers eliminates the need for high-voltage line sensing and phase