Seismic array
US4160233A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1977 |
| Grant date | Jul 3, 1979 |
| Priority date | — |
| Expiry date | Aug 16, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved seismic array is disclosed having a plurality of seismic detector connection points with a seismic detector at each seismic detector connection point. The output of each seismic detector in the array is weighted by providing first resistive weighting at each seismic detector connection point. The weighted output of all detectors in the array is provided to a first end of the array over a single pair of wires. An amplifier is additionally provided for connection to the pair of wires at the first end of the array, and the amplifier has feedback network, including a resistor. The ratio of the value of the resistance in the feedback network to the value of the weighting resistor at a seismic detector connection point determines the magnitude of the signal appearing at the output of the amplifier from the response from the seismic detector at that point. An array having bi-directional capabilities is achieved by providing second resistive weighting to the output of each seismic detector in the array and by providing a second pair of wires which interconnects this second weighted output of the detectors and which emerges from the second end of the array. A second amplifier is…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.