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. 17, 2015
Filed:
Dec. 20, 2010
Olivier Le Traon, Vauhallan, FR;
Steve Masson, Le Plessis Robinson, FR;
Jean Guerard, Juvisy, FR;
Raphael Levy, Paris, FR;
Claude Chartier, Massy, FR;
Denis Janiaud, Les Ullis, FR;
Olivier Le Traon, Vauhallan, FR;
Steve Masson, Le Plessis Robinson, FR;
Jean Guerard, Juvisy, FR;
Raphael Levy, Paris, FR;
Claude Chartier, Massy, FR;
Denis Janiaud, Les Ullis, FR;
Office National d'Etudes et de Recherches Aerospatiales (ONERA), Chatillon, FR;
Abstract
The Coriolis-effect gyrometer has a tuning fork having two tines, which tuning fork is formed in a plate of piezoelectric crystal and provided with electrodes composed of ribbon conductors supported solely by the faces of the tines parallel to the plate. The drive excitation and drive detection electrodes are connected to an oscillator circuit, and the Coriolis detection electrodes are connected to a detection circuit. For each of the faces parallel to the plate of each of the tines the drive detection ribbon is disposed between the drive excitation ribbon and the Coriolis detection ribbon and is connected to the inverting input of an operational amplifier, the non-inverting input of which is connected to the electric ground, said operational amplifier forming part of the oscillator circuit.