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. 23, 2014
Filed:
Mar. 11, 2011
James A. Mcconnell, Clinton, CT (US);
James A. McConnell, Clinton, CT (US);
Applied Physical Sciences Corp., Groton, CT (US);
Abstract
A cantilever beam accelerometer design is disclosed that obviates the need of attaching electrical leads directly to the piezoelectric plates. According to one aspect of the invention, two identical proof-masses are positioned on top of each piezoelectric plate in a symmetrical fashion. In advance of attaching the masses to the plates, electrical leads are attached to the masses by some suitable technique such as soldering. Each proof-mass is positioned on its respective piezoelectric plate as close to the free-end of the beam as practical, to keep the size of the mass reasonably small. The disclosed concept is useful for both series and parallel configurations of the piezoelectric plates, wherein the polarization vectors are in opposite directions for two plates connected in series and the polarization vectors are in the same direction for two plates connected in parallel.