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:
Jul. 30, 2019
Filed:
Jun. 26, 2013
Murata Manufacturing Co., Ltd., Kyoto, JP;
Lasse Aaltonen, Espoo, FI;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An improved sensing device comprising micromechanical gyroscope and a feed-back loop with a controller for creating a damp control signal. A frequency generator generates a drive signal for drive mode vibration and a reference signal that is in quadrature-phase in relation to the drive mode vibration. The quadrature reference signal is summed with the damp control signal of the controller. The resulting transducer control signal is fed to the second mechanical resonator. Stable cancellation of the actual mechanical quadrature motion is achieved already at the sensing element level, before the detection of the Coriolis signal.