Method for testing cableless seismic digital field recorders

Details Method for testing cableless seismic digital field recorders Method for testing cableless seismic digital field recorders

1982-12-29

1987-01-27

Cangialosi, Salvatore

Communications, electrical: acoustic wave systems and devices

Testing, monitoring, or calibrating

73 1R, 346 33C, 367 77, G01V 116, H04B 1700

Patent

active

046399011

ABSTRACT:
Test features are incorporated in an improved cableless seismic digital recording system recorder. The improved recorder facilitates application of earlier cableless seismic digital recording systems to situations in which seismic-trace data is generated by low energy surface seismic sources, such as vibrators and hammers. A seismometer, or geophone, is connected to a remotely deployed radio-controlled portable recorder which contains circuitry for sampling, digitizing, processing, storing, and recording seismic-trace data. Coded radio signals instruct the recorder to commence an operation or sequence of operations from a predetermined set of programmed instructions stored in program read only memory included in the recorder. Such operations include data acquisition; optional weighting and vertical stacking (summing); normalization; recording; and seismic source initiation. Test features include control panel display of operational status and verification of gain-ranging amplifier operation.

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Rothero, "A Portable Digital Seismic Recorder with Event Recording Capability", Bulletin of the Seismological Society of Amer., vol. 66, No. 3, pp. 979-985, Jun. (1976).

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