发明名称 Seismic cable for use with array terminal type acquisition systems
摘要 A simplified cable system for use in gathering S analog signals into each of T array terminals (AT), spaced apart a distance D, where the analog signals are amplified, digitized, stored and, on command, transmitted as trains of digital bits along a digital conductor pair in the cable system, to successive ATs downline, to a recording unit. In the optimum embodiment, the cables are all identical, are plugged into each of 2 ports, or receptacles, in each AT. The cables are D/2 long, have S/2 conductor pairs, and S/2 takeouts spaced D/S apart, each takeout connected to a different conductor pair. Each cable contains at least one digital conductor pair. Two cables in series connect between adjacent ATs. The plugs joining one cable to the next, connect only the digital conductor through from cable to cable, while the analog conductor pairs are dead ended at the joining plugs.
申请公布号 US4148006(A) 申请公布日期 1979.04.03
申请号 US19770834817 申请日期 1977.09.19
申请人 GEOPHYSICAL SYSTEMS CORP. 发明人 KELM, EDWARD C.
分类号 G01V1/22;(IPC1-7):G01V1/16 主分类号 G01V1/22
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