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:
Apr. 16, 2002
Filed:
Mar. 19, 2001
Ying W. Hsu, Huntington Beach, CA (US);
Microsensors, Inc., Costa Mesa, CA (US);
Abstract
Disclosed is a method of correcting quadrature error in a dynamically decoupled micro-gyro ( ) having a drive mass ( ) that is vibrated relative to a drive axis (Y, Z) and a sense mass ( ) that responds to the drive mass ( ) in the presence of an angular rate and associated coriolis force by vibrating relative to a sense axis (X, Y). The method includes the steps of providing a first static force element ( ) for applying a first steady-state force to a first region of the drive mass ( ); providing a second static force element ( ) for applying a second steady-state force to a second region of the drive mass ( ), and applying a corrective steady-state force to the drive mass ( ) with the first and second static force elements ( ), the corrective steady-state force making the drive axis (Y, Z) of the drive mass ( ) orthogonal to the sense axis (X, Y) of the sense mass ( ). In the rotational embodiment, the static force elements are located at +Y and −Y directions.