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:
Oct. 31, 2017
Filed:
Dec. 05, 2012
Veeco Instruments Inc., Plainview, NY (US);
Raymond C. Logue, Henderson, NV (US);
Don N. Sirota, Poughkeepsie, NY (US);
William E. Quinn, Whitehouse Station, NJ (US);
Owan C. Watkins, Edison, NJ (US);
Maria D. Ferreira, Belle Meade, NJ (US);
Wei Zhang, New Brunswick, NJ (US);
Veeco Instruments Inc., Plainview, NY (US);
Abstract
An acoustical transformer having a last matching section that includes a protective barrier of low permeability. The protective barrier is in contact with a test medium. In one embodiment, the protective barrier comprises one or more low permeability layers, such as a metallic foil or metallic coating(s) disposed on a low impedance layer such as polyimide, so that the low impedance layer and the protective barrier constitute the last matching section of the acoustical transformer. In other embodiments, the protective barrier comprises a fluoropolymer. A method for determining the thicknesses of the various layers of the acoustical transformer for enhanced performance is also disclosed.