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:
Mar. 18, 2003
Filed:
Mar. 08, 2001
Applicant:
Inventors:
Assignee:
Tokin Corporation, Miyagi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/16 ;
U.S. Cl.
CPC ...
G01B 7/16 ;
Abstract
A capacitive strain sensor comprises a substrate ( ) and a pair of interdigital electrode capacitors ( A) formed on the substrate. A dielectric thick film ( ) having a uniform thickness and made of a material the dielectric constant of which varies with strain is provided on an elastic body having a flat or curved surface on the substrate ( ). A block ( ) for preventing strain from being produced is secured to one end of the substrate ( ); a weight ( ) is secured to the other end. The capacitors ( A) are formed by interdigitally arranging a pair of electrodes being parallel linear electrodes of linear conductors on the substrate.