CABLELESS SEISMIC DIGITAL FIELD RECORDER HAVING ON- SITE TEST CAPABILITIES

摘要

ABSTRACT OF THE DISCLOSURETest features are incorporated in an improvedcableless seismic digital recording system recorder. Theimproved recorder facilitates application of earliercableless seismic digital recording systems to situationsin which seismic-trace data is generated by low energysurface seismic sources, such as vibrators and hammers. Aseismometer, or geophone, is connected to a remotelydeployed radio-controlled portable recorder which containscircuitry for sampling, digitizing, processing, storing,and recording seismic-trace data. Coded radio signalsinstruct the recorder to commence an operation or sequenceof operations from a predetermined set of programmedinstructions stored in program read only memory includedin the recorder. Such operations include data acquisi-tion; optional weighting and vertical stacking (summing);normalization; recording; and seismic source initiation.Test features include control panel display of operationalstatus and verification of gain-ranging amplifier opera-tion.