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:
Dec. 06, 2011
Filed:
Sep. 17, 2010
Jeffrey C. Andle, Falmouth, ME (US);
Daniel S. Stevens, Stratham, NH (US);
Reichl B. Haskell, Nashua, NH (US);
Dana Y. G. Tucker, Acton, MA (US);
Jeffrey C. Andle, Falmouth, ME (US);
Daniel S. Stevens, Stratham, NH (US);
Reichl B. Haskell, Nashua, NH (US);
Dana Y. G. Tucker, Acton, MA (US);
Delaware Capital Formation Inc., Wilmington, DE (US);
Abstract
The current invention relates to a conductivity-dielectric (CD) electrode design with apertures that allow compressional waves to propagate away from the surface of the acoustic wave device unimpeded. This prevents reflection of compressional waves that would interact with the viscosity sensor surface, thus altering the device response. It allows compressional waves to pass through, and allows the dual mode viscosity sensor responses to be utilized for density/viscosity/elasticity measurement and correlation. The invention further offers methods of instrumentation to detect unwanted reflections, to compensate, and to correct for the distortions caused by reflections. Finally, the invention provides a system and method for utilizing deliberately introduced reflections to obtain additional information, including fluid density.