Method for matching vibration mode frequencies on a vibrating structure
First Claim
1. A method for matching vibration mode frequencies on a vibrating structure for a vibrating structure gyroscope, in which the vibrating structure is a substantially cylindrical or substantially ring-like sensing element, and in which a desired variable amount of material is removed from and/or added to the sensing element at at least one point on or in the vicinity of the neutral axis of the cross section of the element, to displace and match the vibration mode frequencies around the element, and wherein said desired variable amount of material is removed from and/or added to the sensing element in the absence of a change in width of the element.
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Abstract
Vibration mode frequencies of a vibrating structure gyroscope sensing element are matched by removing and/or adding a desired variable amount of material from or to the sensing element (1) at at least one point (4) on or in the vicinity of the neutral axis (5).
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Citations
7 Claims
- 1. A method for matching vibration mode frequencies on a vibrating structure for a vibrating structure gyroscope, in which the vibrating structure is a substantially cylindrical or substantially ring-like sensing element, and in which a desired variable amount of material is removed from and/or added to the sensing element at at least one point on or in the vicinity of the neutral axis of the cross section of the element, to displace and match the vibration mode frequencies around the element, and wherein said desired variable amount of material is removed from and/or added to the sensing element in the absence of a change in width of the element.
Specification