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SELF-ACTIVATED NANOSCALE PIEZOELECTRIC MOTION SENSOR

United States Patent Application

20090179523
A1
View the Complete Application at the US Patent & Trademark Office
A strain sensor for measuring strain in a surface of an object includes an insulating flexible substrate, a first conductive contact, a second conductive contact and a piezoelectric nanowire. The insulating flexible substrate is coupled to the object. The first conductive contact and the second conductive contact are mounted on the insulating substrate. The piezoelectric nanowire is electrically coupled to the first conductive contact and the second conductive contact. The piezoelectric nanowire is subject to strain when the surface of the object is subject to strain, thereby creating a voltage differential therebetween. A trigger sensor includes a substrate, a piezoelectric nanowire and a conductive contact. The piezoelectric nanowire extends from the substrate. The conductive contact is disposed in relation to the piezoelectric nanowire so that a voltage differential between the substrate and the conductive contact when the substrate moves with the predetermined acceleration.
Wang, Zhong L. (Marietta, GA), Jun, Zhou (Atlanta, GA)
GEORGIA TECH RESEARCH CORPORATION (Atlanta GA)
12/ 413,470
March 27, 2009
STATEMENT OF GOVERNMENT INTEREST [0003] This invention was made with support from the U.S. government under grant number DE-FG02-07ER46394, awarded by the Department of Energy. The government may have certain rights in the invention.