Honeywell International Inc.

Daniel Endean

John Reinke

Mark W Weber

Grant Lodden

Andrew Brown

A method for tuning one or more sensor devices is provided, wherein each sensor device comprises one or more proof masses configured to move in response to an external stimulus of interest, and the one or more proof masses are also susceptible to move in response to one or more stimuli other than the external stimulus of interest. Each sensor device also comprises one or more pick-off mechanisms respectively associated with each of the one or more proof masses. The one or more pick-off mechanisms is proportionally responsive to a motion of the sensor device. The method for tuning includes adjusting gain of one or more of the pick-off mechanisms to reduce an output of each sensor device when the one or more proof masses move in response to the one or more stimuli other than the external stimulus of interest.

Methods for vibration immunity to suppress bias errors in sensor devices

A rotation measurement system that includes at least two proof masses and at least one pick-off is provided. Each proof mass is driven in a first axis of motion. The at least one pick-off is configured to measure movement of the at least two proof masses in a second axis when the system is rotated about a rotation point and generate Coriolis signals and Euler signals based on the measured movement of the at least two proof masses.

Rotation measurement system using Coriolis and Euler forces

Systems and methods for suppressing bias in a non-degenerate vibratory structure are provided. In certain embodiments, a vibratory structure includes a first proof mass; a second proof mass, wherein the first proof mass and the second proof mass are driven into motion along a first axis, wherein the first proof mass and the second proof mass move in anti-phase along a second axis, wherein the motion of the first proof mass and the second proof mass along the second axis is such that the centers of mass of the first proof mass and the second proof mass move collinearly along a same axis.

Systems and methods for bias suppression in a non-degenerate MEMS sensor

A gyroscope assembly includes a sense proof mass and a compensation proof mass. The sense proof mass has a sense frequency response in a sense dimension and is configured to move in a drive dimension in response to a drive signal, and to move in the sense dimension in response to experiencing an angular velocity about a sense input axis while moving in the drive dimension. And the compensation proof mass has, in the sense dimension, a compensation frequency response that is related to the sense frequency response.

Vibratory error compensation in a tuning fork gyroscope such as a Coriolis Vibratory Gyroscope (CVG)

Systems and methods for noise and drift calibration using dithered calibration, a system comprising a processing unit; and two or more dithered calibrated sensors that provide directional measurements to the processing unit, wherein a dithered calibrated sensor in the dithered calibrated sensors has an input axis that rotates about an axis such that bias error can be removed by the processing unit; wherein the dithered calibrated sensor provides a zero-bias measurement along a first axis and a low-noise measurement along a second axis, the second axis being orthogonal to the first axis; wherein the dithered calibrated sensors are arranged such that the dithered calibrated sensor provide low-noise and zero-bias measurements along the measured axes; and wherein the processing unit executes an algorithm to combine measurements that are along the same axis to produce a measurement for each measured axis that has both low-noise and zero-bias.

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Plymouth, MN, United States of America

Daniel Endean