The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2007
Filed:
Dec. 10, 2002
Liviu Nicu, La Roche de Glun, FR;
Claude Rougeot, Lyons, FR;
Jérôme Inglese, Valence, FR;
Bertrand Leverrier, Montelier, FR;
Pierre-olivier Lefort, Valence, FR;
Liviu Nicu, La Roche de Glun, FR;
Claude Rougeot, Lyons, FR;
Jérôme Inglese, Valence, FR;
Bertrand Leverrier, Montelier, FR;
Pierre-Olivier Lefort, Valence, FR;
Thales, Neuilly sur Seine, FR;
Abstract
The invention relates to gyroscopes having a vibrating structure that is micromachined in a silicon substrate. A novel vibrating structure is described, which has two moving massesand, connected by a vibration energy coupling structure (transverse arms, longitudinal arms, and a short transverse linkbetween the longitudinal links). The moving masses are also suspended from U-shaped flexure arms (), having one branch end connected to the mass and another end connected to a fixed anchoring point. The flexure arms are not inserted between the coupling structure and the mass, but are independent of the coupling structure. The masses are excited so as to vibrate in their plane by electrostatic forces applied by interdigitated combs. The Coriolis forces make them vibrate perpendicular to the plane, and this vibration is detected by electrodes forming part of the moving masses.