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. 15, 2020
Filed:
Jun. 26, 2015
Applicant:
Atlantic Inertial Systems Limited, Plymouth, Devon, GB;
Inventors:
Assignee:
ATLANTIC INERTIAL SYSTEMS, LIMITED, Plymouth, Devon, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P 15/13 (2006.01); G01P 15/125 (2006.01); G01P 15/08 (2006.01);
U.S. Cl.
CPC ...
G01P 15/131 (2013.01); G01P 15/125 (2013.01); G01P 15/13 (2013.01); G01P 2015/0814 (2013.01);
Abstract
A method for closed loop operation of a capacitive accelerometer uses a single current source () and a single current sink () to apply an in-phase drive signal V' to a first set of fixed capacitive electrode fingers and a corresponding anti-phase drive signal V′ to a second set of fixed capacitive electrode fingers. This provides a net electrostatic restoring force on the proof mass for balancing the inertial force of the applied acceleration and maintains the proof mass at a null position.