ION Geophysical Corporation
Multi-Axis, single mass accelerometer

Abstract:

A seismic sensor comprises a central mass having three principal axes and disposed within a frame. A plurality of transducers is mechanically coupled between the frame and the central mass. The transducers are arranged in pairs, with the transducers in each pair being coupled to opposing sides of the central mass, as defined along each of the three principal axes. Electronics can be provided to combine signals of the transducers in each pair to generate output characterizing acceleration and rotation of the frame.