Bei Technologies, Inc.

Custom Sensors & Technologies, Inc.

Stuart John Knowles

Robert H Moore

Thad W (Marc) Smith

Victor Dragotti

Mark Andrew Collins

William Paul Berger

Robert Albert Anderson

Michael Thomas Frazee

Thad W Smith

Inertial sensor having a body with first and second cavities on opposite sides thereof, a sensing element in the first cavity, electronic circuitry in the second cavity, electrical conductors interconnecting the sensing element and the circuitry, and leads connected electrically to the circuitry and extending from the body for mounting the sensor and making connections with the circuitry.

Method of fabricating an inertial sensor

Inertial sensor with dual cavity package and method of fabrication

Tuning fork and method in which a pair of elongated tines having front and rear surfaces are disposed symmetrically about an axis, and balancing masses on the front surface of one tine and on the rear surface of the other tine are trimmed to reduce quadrature error and also to maintain mass balance between the tines.

Method of manufacturing a tuning fork with reduced quadrature errror and symmetrical mass balancing

Tuning fork with symmetrical mass balancing and reduced quadrature error

Vibratory tuning fork having a body of piezoelectric material with a base and a pair of tapered tines which extend from the base and decrease in lateral dimension from the base toward the tips of the tines. A crotch section at the base of the tines has an inner pair of faces which lie in crystallographic planes of the piezoelectric material and an outer pair of faces which lie in additional crystallographic planes of the material and extend between the inner pair of faces and the tines. An isolation slot is formed in the base adjacent to the crotch, with enlarged cut-outs at the ends of the slot to prevent the formation of facets and membranes across the slot.

Inertial rate sensor tuning fork

Growing community of inventors

Walnut Creek, CA, United States of America

Stuart John Knowles