Methods and apparatus for reducing vibration rectification...

Details Methods and apparatus for reducing vibration rectification... Methods and apparatus for reducing vibration rectification...

2006-11-07

2006-11-07

Raevis, Robert (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Speed, velocity, or acceleration

Reexamination Certificate

active

07131315

ABSTRACT:
Systems and methods for minimizing vibration rectification error (VRE) for a closed-loop accelerometer. In one embodiment, the method includes applying a known vibration signal to the closed-loop accelerometer along a first axis and adjusting a feedback gain setting until VRE is below a first threshold value. After the feedback gain setting has been adjusted, applying a random vibration signal to the closed-loop accelerometer along the first axis and adjusting a servo system proportional gain value until VRE is below a second threshold value.

REFERENCES:
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patent: 5915278 (1999-06-01), Mallick
patent: 6631643 (2003-10-01), Malvern et al.
patent: 6826960 (2004-12-01), Schaad et al.

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