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. 26, 2021
Filed:
Apr. 12, 2018
University of South Carolina, Columbia, SC (US);
Victor Giurgiutiu, Columbia, SC (US);
Erik Frankforter, Columbia, SC (US);
University of South Carolina, Columbia, SC (US);
Abstract
Structural health monitoring systems and methods are described that incorporate one or more acoustic black holes in a sensing capacity. The acoustic black hole provides low- or no-reflection capabilities combined with high displacement of an edge upon excitation. The sensor can be utilized to differentiate in-plane acousto-ultrasonic wave excitations from out-of-plane excitations as well as to separate the in-plane and out-of-plane components of an excitation acousto-ultrasonic wave. Sensors can incorporate features such as mode selectivity, omnidirectional sensing, frequency tunability, quasi-static strain insensitivity, and mechanical amplification.