An improved cableless seismic digital recording system is disclosed which records seismic-trace data generated by any type of seismic source, including high energy impulsive seismic sources, such as dynamite, and low energy surface seismic sources, such as vibrators and hammers. A seismometer, or geophone,...http://www.google.fr/patents/US4885724?utm_source=gb-gplus-shareBrevet US4885724 - Cableless seismic digital field recorder having on-site seismic data processing capabilities
Cableless seismic digital field recorder having on-site seismic data ...
