Roll-along switch
US4285052A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Jul 26, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The electronic roll-along switch consists of several input multiplexers, each having a number of inputs that are connected to seismic detectors, and an output line. A plurality of multiple-input sample-and-hold modules are provided. Corresponding inputs of the respective sample-and-hold modules are paralleled. The output lines of the input multiplexers are connected in consecutive order to the paralleled input of the sample-and-hold modules. The output of each sample-and-hold module is connected to an output amplifier which is couplable to a multichannel seismic recording system. A master controller provides circuitry for connecting any set of several seismic detectors to a like number of channels in the seismic recording system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.