Techniques for damping resonances
AssigneeHoneywell International Inc.
InventorChad E Richason
Life of this patent
Estimating the term…
Abstract
Techniques are provided in which an additional, or second, spring mass system is added to a first spring mass system. The second spring mass system is configured to diminish, or dampen, an amplitude of the resonance of the first spring mass system. Thus, a combination of the first and the second spring mass systems has a diminished amplitude of such resonance. An amplitude of vibrations in a frequency band around the resonance is diminished. As a result, bias error of the inertial system is diminished.
Claims20
An apparatus for reducing error in an inertial system, the apparatus comprising:
- the inertial system including a package and at least one inertial sensor each of which is attached in and/or on the package;
- a first set of one or more elastomeric isolators mechanically coupling the package to a chassis;
- one or more balance weights;
- and
- a second set of one or more elastomeric isolators, wherein each of the one or more balance weights is mechanically coupled to the package by one or more elastomeric isolators of the second set.
A method for reducing error in an inertial system, the method comprising:
- receiving a vibration in the inertial system which is attached to a chassis by a first set of one or more elastomeric isolators, wherein the inertial system includes a package and at least one inertial sensor each of which is attached in and/or on the package;
- and
- diminishing an amplitude of the vibration in the inertial system with one or more balance weights each of which is mechanically coupled to the package by at least one of a second set of one or more elastomeric isolators.
An apparatus for reducing error in an inertial system, the apparatus comprising:
- a chassis of a vehicle;
- the inertial system including a package and at least one inertial sensor each of which is attached in and/or on the package, wherein the at least one inertial sensor includes at least one accelerometer and/or at least one gyroscope;
- a first set of one or more elastomeric isolators mechanically coupling the package to the chassis;
- one or more balance weights;
- and
- a second set of one or more elastomeric isolators, wherein each of the one or more balance weights is mechanically coupled to the package by one or more elastomeric isolators of the second set.
Dependencies are inferred from the claim text.