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. 21, 1997
Filed:
Aug. 04, 1995
Applicant:
Inventor:
Gregory D Swanson, Indianapolis, IN (US);
Assignee:
Delco Electronics Corporation, Kokomo, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P / ; G01P / ;
U.S. Cl.
CPC ...
7351418 ; 7351433 ; 7386261 ; 7351417 ;
Abstract
A motion sensor is provided for sensing motion or acceleration of a body, such as an accelerometer for use in an on-board automotive safety control system or navigational system. The motion sensor is a piezoresistive motion sensor that operates in a closed loop force rebalance mode. As such, the motion sensor may be considered a hybrid of piezoresistive sensors and capacitive force rebalance sensors. The sensor achieves this novel combination through a mechanically-biased proof mass that enables-the use of a single electrode for maintaining the proof mass in a null position during the operation of the sensor.