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:
Dec. 27, 2005
Filed:
Sep. 06, 2002
Christopher P Fell, Plymouth, GB;
Rebecka Eley, Plymouth, GB;
Colin H. J. Fox, Nottingham, GB;
Stewart Mcwilliam, Nottingham, GB;
Christopher P Fell, Plymouth, GB;
Rebecka Eley, Plymouth, GB;
Colin H. J. Fox, Nottingham, GB;
Stewart McWilliam, Nottingham, GB;
BAE Systems plc, London, GB;
Abstract
A two axis gyroscope including a substantially planar vibratory resonator () having a substantially ring or hoop-like structure with inner and other peripheries extending around a common axis, carrier mode drive () for causing the resonator () to vibrate in a cosnθ vibration mode, carrier mode pick-off () for sensing movement of the resonator () in response to the carrier mode drive (), X-axis response mode pick-off () for detecting movement of the resonator in response to rotation about the X-axis, X-axis response mode drive () for nulling said motion, y-axis response mode pick-off () for detecting movement of the resonator in response to rotation about the y-axis, y-axis response mode drive () for nulling said motion, and a support () for flexibly supporting the resonator () and for allowing the resonator to vibrate relative to the support () in response to the carrier mode drive () and to applied rotation, wherein the support () comprises only L legs, where, when L is even:=2, andwhere, when L is odd:where K is an integer, L>2 and N is the carrier mode order.