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:
Jan. 24, 2023
Filed:
Aug. 16, 2021
Atlantic Inertial Systems Limited, Plymouth, GB;
John Keith Sheard, Plymouth, GB;
Matthew Williamson, Plymouth, GB;
ATLANTIC INERTIAL SYSTEMS LIMITED, Plymouth, GB;
Abstract
A vibrating structure gyroscope comprises a resonant structure arranged to vibrate under stimulation from a primary drive electrode. A drive system is arranged to vibrate the vibrating structure at a resonance frequency. An automatic gain control unit varies an amplitude of a primary drive signal (P). A controller operates the gyroscope such that in a first mode of operation, the automatic gain control unit varies an amplitude of the drive signal (P) between an operating range defined by upper and lower bounds and in a second mode operation, in which the automatic gain control unit sets the amplitude of the drive signal (P) to a predetermined level outside of the operating range. In the second mode of operation an amplitude of a primary sense signal (P) is measured after a predetermined time period to determine an oscillation cycle count during said predetermined time period.