Method of determining a speed of rotation of an axially...

Details Method of determining a speed of rotation of an axially... Method of determining a speed of rotation of an axially...

2007-09-12

2009-11-24

Kwok, Helen C. (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

Reexamination Certificate

active

07621184

ABSTRACT:
The method of determining the speed of rotation of an axially symmetrical vibrating sensor of order2. The method includes:performing a first evaluation of the speed of rotation while a vibration generated by the vibrating sensor lies in a first position relative to electrodes generating the vibration;applying a precession command so that the vibration comes successively into positions that are offset by 45°, 90°, and 135° relative to the first position;performing evaluations of the speed of rotation while the vibration lies in the offset positions; andtaking a mean of the evaluations of the speed of rotation in the various positions of the vibration.

REFERENCES:
patent: 5616864 (1997-04-01), Johnson et al.
patent: 5712427 (1998-01-01), Matthews
patent: 7127946 (2006-10-01), Renault
patent: 1 445 580 (2004-08-01), None

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