Angular rate sensor with improved aging properties

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United States of America Patent

PATENT NO 9234907
APP PUB NO 20130233074A1
SERIAL NO

13698342

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An angular velocity sensor is described with improved ageing and hysteresis properties. The sensor may be of a ring type driven by a driver circuit, the sensor further comprising primary and secondary portions having corresponding signal pickoffs. The gain of the primary pickoff signal and the capacitance of the primary portions of the sensor are controlled relative to the gain of the secondary pickoff and the capacitance of the secondary portions of the sensor. Control electronics is provided that enables matching of the relative signals from the respective channels. In this way, temperature hysteresis and ageing effects of materials used in forming the sensor are overcome.

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Patent Owner(s)

Patent OwnerAddress
SILICON SENSING SYSTEMS LIMITEDSOUTHWAY PLYMOUTH DEVON PL6 6DE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Durston, Michael Plymouth, GB 12 36
Fell, Christopher Paul Plymouth, GB 20 153
Townsend, Kevin Plymouth, GB 34 307

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