Extensions of the galperin transformation matrices for triaxial seismometers

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SUMMARY

    The authors derive the analytical transformation matrix from test mass displacement in the UVW coordinate to ground displacement in the XYZ coordinates and evaluate how 2 of 20 self-noise, which equally affects each of the U, V, and W sensors, translates into X, Y, and Z noise. Brownian noise and temperature to discuss noise and Since torque feedback is ubiquitously used, the most useful transformation matrix is one that transforms the feedback torque to ground acceleration. The seismometer output noise in the vertical direction due to Brownian motion is given by Erwin et_al . . .

     

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