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:
Aug. 16, 1994
Filed:
Apr. 28, 1993
Applicant:
Inventors:
James R Jamieson, Maineville, OH (US);
Ahmad P Zahedi, Cincinnati, OH (US);
Heidi J Stegemiller, Franklin, OH (US);
Assignee:
General Electric Company, Cincinnati, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
25022721 ; 25022719 ; 73800 ;
Abstract
Vibrations within ceramic matrix and metal matrix composite materials are controlled by applying an excitation voltage to an array of piezoelectric actuators mounted to the surface of such materials. The actuators are driven in response to the phase shift of monochromatic light transmitted through a grid of optical fibers embedded within the composite materials. Applications include active vibration suppression, de-icing, and on-line structural integrity monitoring.