For a geophone, the preamp, shielding, and signal conditioning is at least as important as the sensor, and (IMHO) the hardest to do well. A preamp to operate near DC, with low input impedance ...

IN experimenting with a magneto-striction seismometer originally designed for geophysical prospecting, some characteristics of the instrument were observed to be of interest. The geophone, when ...

ION Geophysical's Holland-based Sensor B.V. subsidiary has commercialized a new, high performance geophone, the SM-24XL. This newest addition to the Sensor portfolio leverages a simplified product ...