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:
Jan. 15, 2019
Filed:
Jun. 09, 2015
The Regents of the University of California, Oakland, CA (US);
Doruk Senkal, Irvine, CA (US);
Andrei M. Shkel, Irvine, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
A toroidal ring gyroscope with a robust outer perimeter anchor and a distributed suspension system. The vibrational energy in the design is concentrated towards the innermost ring, and the device is anchored at the outer perimeter. The distributed support structure prevents vibrational motion propagating to the outer anchor, which helps trap the vibrational energy within the gyroscope and provides a Q-factor of >100,000 at a compact size of 1760 μm. Due to the parametric pumping effect, energy added to each mode is proportional to the existing amplitude of the respective mode. As a result, errors associated with finding the orientation of the standing wave and x-y drive gain drift are bypassed. The toroidal ring gyroscope can be fabricated using any standard silicon on insulator process. Due to the high Q-factor and robust support structure, the device can potentially be instrumented in high-g environments that require high angular rate sensitivity.