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:
Sep. 29, 2026
Filed:
Feb. 28, 2024
Northrop Grumman Systems Corporation, Falls Church, VA (US);
Vyacheslav Lebedev, Redondo Beach, CA (US);
Steven Ryan Jefferts, Chatsworth, CA (US);
Northrop Grumman Systems Corporation, Falls Church, VA (US);
Abstract
One example includes an optical accelerometer system. The system includes an optical cavity system comprising a variable optical cavity that propagates a first optical beam and a fixed optical cavity that propagates a second optical beam. The fixed optical cavity can have a fixed cavity length and the variable optical cavity can have a cavity length that changes in response to an external acceleration. The optical cavity system can also include optics to provide a beat optical beam that is a combination of the first and second optical beams. The system also includes a detection system to monitor the beat optical beam to generate a beat voltage that is indicative of the frequency of the beat optical beam. The detection system can compare the beat voltage with a stable frequency reference voltage to determine a magnitude of the external acceleration.