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:
Jul. 14, 1998
Filed:
May. 29, 1997
Mark S Peloquin, Uncasville, CT (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A method and system are provided to optimize filtering of compressional wave energy in the wavenumber domain for a given frequency range using a fluid-filled elastic cylinder. The fluid is selected based on its fluid density .rho..sub.i and dilatational wave phase velocity c.sub.i. The selected fluid must satisfy the relationship ##EQU1## for the given frequency range where P.sub.i is the magnitude of the pressure field in the fluid at a point within the fluid defined by a distance r.sub.1 from the cylinder's central longitudinal axis and P.sub.o is the magnitude of the impinging compressional wave, and must control at least one of the breathing wave response, the extensional wave response and the fluid P-wave response.