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:
Mar. 12, 2013
Filed:
Jul. 18, 2008
Sylvain Jean Ballandras, Besancon, FR;
Jérérmy Masson, Avanne-Aveney, FR;
Sylvain Jean Ballandras, Besancon, FR;
Jérérmy Masson, Avanne-Aveney, FR;
Centre National de la Recherche Scientifique, Paris, FR;
Senseor, Mougins, FR;
Universite de Franche-Comte, Besancon Cedex, FR;
Abstract
The invention relates to a stress gauge of the type having an acoustic resonant structure, including a piezoelectric transducer () connected to a holder (), the holder () including opposite the piezoelectric transducer () an imbedded reflecting portion (). The imbedded reflecting portion () reflects the volume acoustic waves generated by the piezoelectric transducer () when it is excited according to a harmonic mode of the structure and propagating into said holder (), the reflecting portion () being arranged at a distance from the piezoelectric transducer () such that the integral of the stress on the propagation distance of the volume acoustic waves up to their reflection is different from zero.