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Multi-Axis, single mass accelerometer

  • US 10,545,254 B2
  • Filed: 10/31/2016
  • Issued: 01/28/2020
  • Est. Priority Date: 10/30/2015
  • Status: Active Grant
First Claim
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1. A seismic sensor comprising:

  • a frame;

    a central mass disposed within the frame, the central mass having three principal axes; and

    a plurality of transducers mechanically coupled between the frame and the central mass;

    wherein the transducers are arranged in three pairs, the transducers in each pair being coupled to opposing sides of the central mass defined along a different one of the three principal axes; and

    wherein each of the transducers has a crystal orientation defining a shear sensitivity, the shear sensitivity of the transducers in each pair being oriented generally parallel to one another and substantially perpendicular to the respective principal axis.

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