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:
May. 16, 1995
Filed:
Jan. 13, 1994
Applicant:
Inventor:
Masahiro Yamamoto, Itami, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P / ;
U.S. Cl.
CPC ...
7351 / ; 338-2 ;
Abstract
A semiconductor acceleration sensor includes at least two mutually independent electrodes on a surface of an acceleration sensing beam to which a weight is secured, the surface of the weight being electrically conductive and connecting the electrodes together. The electrodes are serially connected with a power supply for a bridge circuit. When the weight is separated from the acceleration sensing beam, disconnection of the electrodes on the beam occurs and the bridge is disconnected from the power supply, producing an abnormal output. Thus, it is possible to positively sense separation of the weight from the beam.