Electrodes and associated electronic circuits for a piezoelectric vibrating gyrometer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8978473
APP PUB NO 20120279303A1
SERIAL NO

13518148

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES (ONERA)CHEMIN DE LA HUNIÈRE BP80100 PALAISEAU 91123

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chartier, Claude Massy, FR 4 7
Guerard, Jean Juvisy, FR 8 8
Janiaud, Denis Les Ullis, FR 13 184
Le, Traon Olivier Vauhallan, FR 13 155
Levy, Raphael Paris, FR 15 111
Masson, Steve Le Plessis Robinson, FR 5 30

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