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. 09, 2024
Filed:
Sep. 10, 2022
Emcore Corporation, Alhambra, CA (US);
Sergey Alexandrovich Zotov, Concord, CA (US);
Arvind K. Srivastava, Brentwood, CA (US);
EMCORE CORPORATION, Alhambra, CA (US);
Abstract
An inventive accelerometer includes a proof mass and a pair of vibrating sensors. Excitation-and-detection circuits drive vibrational modes of one sensor at resonant frequencies f, F, and F′, and drive those same vibrational modes of the other sensor at resonant frequencies f, F, and F′. Compressive or tensile loads oppositely applied by the proof mass to the vibrating sensors cause difference frequencies Δf=f−f, ΔF=F−F, and ΔF′=F′−F′to vary monotonically with acceleration of the apparatus along a sensing axis. A measurement of acceleration can be generated based at least in part on a linear or nonlinear function of one or more or all of f, f, F, F, F′, or F′, and can be generated using a trained neural network.