Measuring and testing – Instrument proving or calibrating – Speed – velocity – or acceleration
Reexamination Certificate
2006-06-27
2006-06-27
Kwok, Helen (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Speed, velocity, or acceleration
C702S088000, C702S096000
Reexamination Certificate
active
07066004
ABSTRACT:
A MEM inertial sensor (e.g. accelerometer, gyroscope) having integral rotational means for providing static and dynamic bias compensation is disclosed. A bias compensated MEM inertial sensor is described comprising a MEM inertial sense element disposed on a rotatable MEM stage. A MEM actuator for drives the rotation of the stage between at least two predetermined rotational positions. Measuring and comparing the output of the MEM inertial sensor in the at least two rotational positions allows, for both static and dynamic bias compensation in inertial calculations based on the sensor's output. An inertial measurement unit (IMU) comprising a plurality of independently rotatable MEM inertial sensors and methods for making bias compensated inertial measurements are disclosed.
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Allen James J.
Kohler Stewart M.
Conley William R.
Kwok Helen
Sandia Corporation
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