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. 06, 2014
Filed:
Aug. 17, 2011
Steven J. Sanders, Scottsdale, AZ (US);
Jeffrey E. Lewis, Phoenix, AZ (US);
Sorin Mosor, Peoria, AZ (US);
David A. Doheny, Clearwater, FL (US);
Norman Gerard Tarleton, Glendale, AZ (US);
Austin Taranta, Scottsdale, AZ (US);
Steven J. Sanders, Scottsdale, AZ (US);
Jeffrey E. Lewis, Phoenix, AZ (US);
Sorin Mosor, Peoria, AZ (US);
David A. Doheny, Clearwater, FL (US);
Norman Gerard Tarleton, Glendale, AZ (US);
Austin Taranta, Scottsdale, AZ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Systems and methods for environmentally insensitive high-performance fiber-optic gyroscopes are provided. In one embodiment, a loop closure electronics apparatus for a fiber optic gyroscope having an optical phase modulator characterized by a transfer function that includes an error component of at least second order is provided. The apparatus comprises: a first digital circuit that generates a digital bias modulation signal; a second digital circuit that generates a digital feedback signal; at least one digital-to-analog converter that produces an electrical signal that drives the phase modulator from the digital bias modulation signal and the digital feedback signal; and a compensator that includes an analog filter of at least second order and a digital filter of at least second order, wherein the analog filter and the digital filter pre-filter the electrical signal to compensate for the error component.