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. 16, 2018
Filed:
Mar. 20, 2015
Applicant:
Analog Devices, Inc., Norwood, MA (US);
Inventor:
Jeffrey A. Gregory, Malden, MA (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 19/56 (2012.01); G01C 19/5776 (2012.01); G01P 15/125 (2006.01); G01P 15/13 (2006.01); G01P 21/00 (2006.01); G01C 19/5649 (2012.01); G01C 19/5607 (2012.01); G01C 19/5719 (2012.01); G01C 19/5642 (2012.01);
U.S. Cl.
CPC ...
G01C 19/5776 (2013.01); G01P 15/125 (2013.01); G01P 15/13 (2013.01); G01P 21/00 (2013.01); G01C 19/56 (2013.01); G01C 19/5607 (2013.01); G01C 19/5642 (2013.01); G01C 19/5649 (2013.01); G01C 19/5719 (2013.01);
Abstract
A method compensates for a sensitivity of an inertial sensor having a resonator and an accelerometer. The method includes adding a test signal to a quadrature tuning voltage applied to the resonator of the inertial sensor. The method also includes receiving a quadrature error signal from the accelerometer of the inertial sensor. The method also includes detecting a phase difference between the quadrature error signal and the test signal. The method also includes determining a bandwidth of the accelerometer based on the detected phase difference, the bandwidth indicating the sensitivity of the accelerometer.