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. 17, 2017
Filed:
Mar. 22, 2013
Universite DE Franche Comte, Besancon, FR;
Ecole Nationale Superieure DE Mecanique ET Des Microtechniques, Besancon, FR;
Ioan Alexandru Ivan, Besancon, FR;
Joël Agnus, Besancon, FR;
Manitrarivo Rakotondrabe, Besancon, FR;
UNIVERSITE DE FRANCHE COMTE, Besancon, FR;
ECOLE NATIONAL SUPERIEURE DE MECANIQUE ET DES MICROTECHNIQUES, Besancon, FR;
Abstract
A micropositioning device for a piezoelectric actuator includes a means for controlling an electric field applied to the piezoelectric actuator so as to deform the piezoelectric material, and means for simultaneous measurement of a variation of electric charge accumulated on the piezoelectric actuator resulting from the deformation; and means for acquiring measurements of the variation of electric charge, for processing these acquisitions and for estimating a displacement (x, y, z) of the piezoelectric actuator and/or an applied force.