Data processing: measuring – calibrating – or testing – Measurement system – Accelerometer
Reexamination Certificate
2007-03-12
2010-02-02
Feliciano, Eliseo Ramos (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Accelerometer
C073S493000
Reexamination Certificate
active
07657394
ABSTRACT:
System and method for enabling direct determination of rigid body motion using data collected from a plurality of independent accelerometers are disclosed. A mechanical object that can be theoretically emulated as a rigid body is instrumented with a plurality of accelerometers at different locations. Direct determination of rigid body motion at a location of interest includes following operations at each solution time step: transform local acceleration to global, integrate accelerations to obtain velocities, calculate direction cosine matrix using the angular velocity matrix, form a first set of redundant equations, obtain the angular velocity by solving the first set of equations using either least squares fitting or a selective Gaussian elimination scheme, form a second set of redundant equations and obtain the translational velocity by solving the second set of equations using either the averaged value or a pre-defined rule such as minimizing the contribution from the rotational term.
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Baran Mary C
Chu Roger H.
Feliciano Eliseo Ramos
Livermore Software Technology Corporation
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