Decentralized seismic data processing system
US4092629A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1976 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Mar 8, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The seismic system includes a seismic sensor cable assembly having 50 cable sections and much of the seismic data processing electronics decentralized into the cable structure itself. The cable assembly is coupled to a central station mounted in a recording vehicle. The central station includes recording circuitry and apparatus to receive, process and record digital data words from a data link in the cable assembly and circuitry for transmitting control signals into an interrogation link in the cable assembly. The electrical output of each sensor unit constitutes a separate input channel. The cable sections are spaced apart and interconnected by small-diameter, cylindrical connector modules which contain a transceiver unit for processing the signals from ten sensor units in an associated cable section. Contained within each transceiver unit is a multiplexer having a plurality of filtered input channels coupled respectively to the elemental sensor units, and an output. In response to a first interrogation pulse transmitted through the interrogation link from the central station unit, the multiplexer advances to a selected input channel to acquire a first analog data sample. A second…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.