Vibrating structure comprising two coupled oscillators in particular for a gryo

• US 20030101815A1
• Filed: 10/30/2002
• Published: 06/05/2003
• Est. Priority Date: 05/16/2000
• Status: Active Grant

• Current Assignee: Commissariat a L'Energie Atomique (French Alternative Energies and Atomic Energy Commission)
• Original Assignee: Commissariat a L'Energie Atomique (French Alternative Energies and Atomic Energy Commission)
• Inventors: Orsier, Elisabeth
• Granted Patent: US 6,807,858 B2
• Time in Patent Office: Days
• US Class Current: 73/504.12
• CPC Class Codes: G01C 19/574 the devices having two sensing masses in anti-phase motion

Abstract

A vibrating structure, including at least two oscillators (1, 2) vibrating in a direction of oscillation (XOX) included in a plane (XOX-YOY), a rigid support (8, 9, 10, 11) of the oscillators and oscillator coupling means able to couple their vibratory movements, these means being connected, on the one hand to the rigid support and on the other hand to the oscillators, each oscillator comprising at least one mass (3) and at least one flexible arm connecting the mass to the coupling means, characterised in that said coupling means. comprise flexible attachment means (19, 20) associated with at least one flexible arm (4) of each oscillator by at least one point of attachment, making at said point of attachment a pivot.

Claims

1. A vibrating structure, including at least two oscillators (1, 2) vibrating in a direction of oscillation (XOX) included in a plane (XOX-YOY), a rigid support (8, 9, 10, 11) of the oscillators and oscillator coupling means able to couple their vibratory movements, these means being connected, on the one hand to the rigid support and on the other hand to the oscillators, each oscillator comprising at least one mass (3) and at least one flexible arm connecting the mass to the coupling means, characterised in that said coupling means comprise flexible attachment means (19, 20) connected to the rigid support and to at least one flexible arm (4) of each oscillator by at least one point of attachment, making at said point of attachment a pivot.

2. A structure according to claim 1, characterised in that said coupling means are all or partly located within the rigid support.

3. A structure according to any one of claims 1 to 2, characterised in that the coupling means of two of the oscillators comprise at least one coupling unit formed by:

means (19, 20) of attaching each oscillator to the rigid support,

beams (23, 24, 28) allowing the attachment means to be connected to the rigid support while providing a transfer of movement from at least one of the pivots of one oscillator to at least one of the pivots of the other of said two oscillators.

4. A structure according to claim 3, characterised in that the structure comprises two coupling units, each unit connecting symmetrically all the oscillators of the structure.

5. A structure according to claim 3, characterised in that the beams of the coupling means include at least two intermediate beams (21) extending ends of the arms and a median beam (23, 24, 28) connecting the intermediate beams to each other.

6. A structure according to claim 3, characterised in that the attachment means (19, 20) are curved.

7. A structure according to claim 5, characterised in that the intermediate beams are oblique relative to the median beam.

8. A structure according to any one of the claims 5 to 7, characterised in that the median beam (23, 24) extends beyond the intermediate beams (21, 22) and is fixed by ends to the rigid support.

9. A structure according to any one of the claims 1 to 8, characterised in that the coupling means are arranged in a cutout (25, 26) of the support.

10. A structure according to claims 8 and 9, characterised in that the ends of the median beam (23, 24) extend in extensions (27) of the cutout (25, 26).