Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Reexamination Certificate
2007-09-13
2011-10-25
Allen, Andre (Department: 2855)
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
C073S504040, C073S504080, C073S504120, C073S504180
Reexamination Certificate
active
08042393
ABSTRACT:
An arrangement for measuring a rate of rotation using a vibration sensor, being excited and measured by means of capacitive drive elements, and the rotation of said sensor in an axis, excited by a rotation in another axis by means of the Coriolis force, being measured by means of capacitive measuring elements. Excitation voltages can be supplied to the fixed electrodes of the drive elements, the frequency of said voltages corresponding to the resonance frequency or the subharmonic of the resonance frequency of the vibration sensor. An alternating voltage having a first measuring frequency which is higher than the excitation frequency can be supplied to capacitive elements for measuring the excited vibration. Alternating voltages having a second measuring frequency higher than the excitation frequency are supplied to the fixed electrodes of the measuring elements can be supplied to drive elements causing a vibration excitation in a direction on the basis of the excitation voltage, being in antiphase with the excitation voltage.
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Gier Lothar
Kempe Volker
Strle Drago
Allen Andre
Continental Automotive GmbH
O'Connor Cozen
SensorDynamics AG
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