Road vibration compensated angular rate sensor

A motion sensor comprising:

• a sensing ring supported by a substrate;
• a first pair of diametrically opposed drive electrode structures defined on said substrate about said ring and defining a first axis therethrough, said first pair of diametrically opposed drive electrode structures adapted to receive sensor drive signals thereat;
• a number of sense electrode structures defined on said substrate about said ring;
• and
• a first amplifier having an input coupled to at least some of said number of sense electrode structures and an output defining a first output of said motion sensor.

A method of minimizing road vibrational effects in a motion sensor having a sensing ring supported by a substrate and a number of electrode structures defined on said substrate about said ring, the method comprising the steps of:

• configuring a first pair of diametrically opposed ones of said electrode structures as a first pair of drive electrodes adapted to receive sensor drive signals thereat;
• configuring a second pair of diametrically opposed ones of said electrode structures as a first pair of sense electrodes, said first pair of sense electrodes defining a first axis therethrough normal to a second axis defined through said first pair of drive electrodes;
• and
• summing sense signals produced by said first pair of sense electrodes at a first output of said motion sensor.